service manual AV225T

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AV225T Service Manual | Manualzz

AV225T

service manual

Catalog

Chapter One About Maintenance

1.1 Safety precautions

1.1.1 Power supply

1.1.2 Precautions for antistatic

1.1.3 About placement position

1.2 Maintenance method

1.2.1 Visualized method

1.2.2 Electric resistance method

1.2.4 Current method

1.2.5 Cutting method

1.2.4Currentmethod

1.2.5Cuttingmethod

1.2.6 Element substitution method

1.2.7 Comparison method

1.3 Required device for maintenance

Chapter Two Operation Instructions

2.1 Control button locations and explanations

2.1.1 Front panel illustratlons

2.1.2 Rear panel illustration

2.2.3 Select Input Sound Source

2.2.4 Bass Enhancer

2.2.5 Select Sound Field

2.2.6 Adjust Volume

2.2.7 Adjust Level

2.2.8 EQ function

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3

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2.2.9 Parameter Processing

2.2.10 Adjust Karaoke

2.2.11 Tuning Function

2.2.12 Other Operations

Chapter Three Principle and Servicing

Section One Principle of the Player

3.1.1 Composition of the player

3.1.2 Function and features

3.1.3 Player block diagram

3.1.4 The player signal flow chart

Section Two Unit Circuit Principle

3.2.1 Volume board circuit

3.2.2 Signal processing board circuit

3.2.3 MCU board circuit

3.2.4 Control panel circuit

3.2.5 Power board circuit

3.2.6 Power amplifier board and protection circuit

3.2.7 MIC, headphone board

3.2.8 Video in/out board circuit

Section Three Servicing Cases

3.3.1 Servicing instances

3.3.2 Troubleshooting process

Section Four Servicing Parameters

3.4.1 Signal waveform diagram

3.4.2 Key point voltage

Section Five Function Introduction to IC

3.5.1 function introduction to 4558

3.5.2 function introduction to Pt2399

3.5.3 function introduction to Cd4051

3.5.4 function introduction to Cd4052

3.5.5 function introduction to Cd4053

3.5.6 function introduction to Sm79164

3.5.7 function introduction to Pt2308

3.5.8 function introduction to Pt2222

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3.5.9 function introduction to Lm1875

3.5.10 function introduction to TDA7265

3.5.11 function introduction to M62446

3.5.12 function introduction to AT24C02

3.5.13 function introduction to L7805

3.5.14 function introduction to 7812

3.5.15 function introduction to 7912

3.5.16 function introduction to LM324

3.5.17 function introduction to Pt2315

3.5.18 function introduction to 74VHC245

3.5.19 function introduction to Cd4094

Chapter Four Disassembly and Assembly Process

Chapter Cinque PCB board & Circuit diagram

Section One PCB board

Section Two circuit diagram

Chart 6 BOM List

6.10 Microphone holder board

S lasel

6.16 Supplement module

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Chapter One About Maintenance

1.1 Safety precautions

1.1.1 Power supply

When servicing audio power amplifier, the servicing personnel pay special attention to the power board with 220V AC, or else the improper operation will lead to body damage. The alternate current which outputs to power amplifier board through power board is also up to voltage with about 50V; when servicing, short-circuit and joint welding cannot occur, or else the elements will be burnt out and trouble range will be enlarged.

1.1.2 Precautions for antistatic

Movement and friction will both bring static electricity which causes serious damages to integrated

IC. Though static charge is little, when a limited quantity of electric charge is added to largescaleintegrated IC, as the capacitance is very small in the meantime, now the integrated IC is very much easy to be struck through by static electricity or the performance will decrease. Thus static electricity prevention is of extraordinary importance. The following are several measures to prevent static electricity:

1. Use a piece of electric conduction metal with the length of about 2 metres to insert into the earth, and Fetch the lead wire from the top of the surplus metal and connect to the required static electricity device. The length and depth of the metal embedded under the earth should be determined according to the wettability of the local soil. For humid places, it may be shorter, and longer and deeper for dry places.

If possible, it can be distributed and layed in terms of “#”shape.

2. On operating table-board, the antistatic table cushion should be covered and grounded.

3. All devices and equipments should be placed on the antistatic table cushion and grounded.

4. Maintenance personnel should wear antistatic wrist ring which should be grounded.

5. Places around the operating position should also be covered with electric conduction cushion or

Painted with antistatic paint.

- 1 -

1.1.3 About placement position

1.

Audio power amplifier cannot be installed in places with high temperature and humidity.

2. Positions for placement should be stable and secure.

1.2 Maintenance method

1.2.1 Visualized method

Directly view whether abnormalities of collision, lack of element, joint welding, shedding welding, rosin joint, copper foil turning up, lead wire disconnection and elements burning up among pins of elements appear. Check power supply of the machine and then use hands to touch the casing of part of elements and check whether they are hot to judge the trouble spot. You should pay more attention when using this method to check in high voltage parts.

1.2.2 Electric resistance method

Set the multimeter in resistance position and test whether the numerical value of resistance of each point in the circuit has difference from the normal value to judge the trouble spot. But in the circuit the tested numerical value of resistance is not accurate, and the tested numerical value of integrated IC's pins can only be used for reference, so the elements should be broken down for test.

1.2.3 Voltage method

Voltage method is relatively convenient, quick and accurate. Set the multimeter in voltage position and test power supply voltage of the player and voltage of a certain point to judge the trouble spot according to the tested voltage variation.

1.2.4 Current method

Set the multimeter in current position and test current of the player of a certain point to judge the trouble spot. But when testing in current method, the multimeter should be series connected in the circuit, which makes this method too trivial and troublesome, so it is less frequently used in reality.

1.2.5 Cutting method

Cutting method should be combined with electric resistance method and voltage method to use.

This method is mainly used in phenomena of short circuit and current leakage of the circuit. When cutting the input terminal voltage of a certain level, if voltage of the player rises again, it means that the trouble lies in this level.

- 2 -

1.2.6 Element substitution method

When some elements cannot be judged good or bad, substitution method may de adopted directly.

1.2.7 Comparison method

A same good PC board is usually used to test the correct voltage and waveform. Compared these data with those tested through fault PC board, the cause of troubles may be found.

Through the above maintenance method, theoretical knowledge and maintenance experience, all difficulties and troubles will be readily solved.

1.3 Required device for maintenance

Audio Generator

Digital oscillograph (

100MHE)

SMD rework station

Multimeter

Soldering iron

Pointed-month pincers

Cutting nippers

Forceps

Electric screw driver

Terminals connecting cord

Headphone

Microphone

- 3 -

Chapter Two Operation Instructions

2.1 CONTROL BUTTON LOCATIONS AND EXPLANATIONS

2.1.1 FRONT PANEL ILLUSTRATLONS

1

POWER SWITCH

Power on/off this unit

2

LCD Screen

Buttons operation indication and spectrum

3 display when working

IR sensor

4

Receive the infrared signals transmitted from the remote control

MASTER VOLUME-

Press this button to synchronously lower all

5

6CH volumes

INPUT

Sound source input button

6

MIC VOLUME+

Press this button to increase the volume of

7

MIC

MIC VOLUME-

8

Press this button to lower the volume of MIC

TUNING

Select other frequency radio stations upwards

9

Tuning

Select other frequency radio stations downwards

10

BAND

Select FM/AM tuner BAND

11

PRESET

Select the latter preset radio station

12

PRESET

Select the previous preset radio station

13

MODE

Select tuner mode:manual/auto

14

MASTER VOLUME+

Press this button to synchronously increase all 6CH volumes

15

STANDBY

Standby

16 COVER OF PHONE JACK AND

MICROPHONE JACK

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2.1.2 REAR PANEL ILLUSTRATION

1

2

3

4

AC-3/DTS 5.1CH INPUT

5.1CH audio signals input terminals that connect to DVD, AC-3/DTS

AM/FM antenna terminal

Connect AM/FM antenna outside

Stereo Audio jack

The terminals that connect with VCD, DVD stereo audio signals input

Video input

The terminals that connect with VCD,DVD

5

6

7

Video signals input

Video output jack

The terminals that connect with TV Video signal output

Data

The data plate of this unit

SERIAL NO. Mark

8

9

The manufacturing records

CAUTION mark

Remind the user of dangerous voltage inside

Line-out

10

Subwoofer signals line-out jack

This unit's manufacturer

11

Terminals

Connect with SPEAKER terminals

2.1.3 ILLUSTRATIONS TO THE

REMOTE CONTROL

1

4

5

2

3

STANDBY button: Power on, STANDBY switch button

DISPLAY button: Select audio spectrum display modes

MUTE button: Mute On/Off button

INPUT button: Select input signal sources manually

MOVIE button: OTP button to set standard movie

6

7

8

9

10 theater surround mode

MUSIC button: OTP button to set standard concert mode

K.R.OK: OTP button to set standard Karaoke mode

HI-FI button: Select the Hi-Fi sound field

STANDARD button: Select the standard sound field

CYBER LOGIC button: Select the cyber logic sound

11 field

BASS ENHANCER button: Select the bass enhancing effect

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12

Number buttons 1~8: Select 8 preset working modes

13 with the help of SAVE/CALL button, capable of storing and calling the user-set working mode parameters

SPEAKERS button: Adjust the separate channel level

14 with the help of / keys

CHILD LOCK button: Lock the functions of the front

15

16

17 panel controls

SURR. Button: Select the surround sound field

DEFAULT button: Restore the factory default settings

SAVE button: Store the current working mode

18 parameters with the help of number buttons 1~8

CALL button: Call the user-stored working mode

19

20 parameters with the help of number buttons 1~8

EQ select button: Select the equalization frequency

MULTI-BAND EQ button:Adjust multi-band electronic

21

22

23 equalization

Adjust button: Adjust level and multi-band EQ

EQ button: Circularly call the preset EQ modes

AUTO EQ button: Analyze the current signal spectrum, automatically set EQ parameters

24

25

26

27

VOLUME button: Adjust the karaoke level with / keys

ECHO button: Adjust the karaoke ECHO with / keys

VOICE MODIFY:

MODIFY button: Select Karaoke voice modify

WF button: Karaoke wide sound field On/Off

TONE button: Adjust the karaoke BASS/Treble tone

28 levelwith / keys

DELAY button: Adjust the karaoke delay time with /

29 keys

MASTER VOL button: Synchronously increase/decrease

30

6 channels' volume

BAND button: Select FM/AM tuner band

31

32

MODE button: Select tuner mode:manual/auto

STEP button: Select AM tuning step:9K/10K

33

MEMORY button: Memory the received radio station with the help of number buttons 0~9

34

CLEAR button: Clear the preset radio station with the help of number buttons 0~9

35

36

TUNING : Scan other frequency radio station upwards

TUNING : Scan other frequency radio station

37 downwards

PRESET : Select the latter preset radio station

38

39

PRESET : Select the previous preset radio station

NUMBER 0~9 :Save the received radio station programs or directly call the preset programs with the help of

MEMORY button

2.2 BASIC OPERATIONS

2.2.1 TURN ON/OFF THIS UNIT

Please check the connection cords before turning this unit on. If all connections are correct, you can connect this unit to power.

Press the POWER button, this unit enters the standby mode .

When this unit is in the standby mode, it detects the input signals automatically.

When there is signal input, this unit turns on automatically.

When the input signal is too small, this unit might not detect the signal and will not turn on automatically.

When there is signal input and the unit cannot turn on automatically, press the STANDBY button on the front panel or remote control to operate manually and select input signals by using the INPUT button.

When the unit is in the standby mode, press the STANDBY button on the front panel or remote control to turn on this unit.

Press the STANDBY button on the front panel or remote control.

After turning on this unit, it detects the input signal automatically. When there is signal input, it receives the input signal automatically.

Otherwise, the unit will automatically search signals all the time.

When there is signal input but it cannot receive

The signal automatically, press the INPUT button on the remote control to select the input signal.

When the unit is in normal working mode, press the STANDBY button on the front panel or remote control if you want to enter standby mode.

Please turn off the power when you are not going to use the unit for a long time.

Please turn off the power every time after you use the unit.

Press the " POWER" button on the front panel to power off this unit.

K.R.OK button after inserting microphone and

The system will automatically set standard

Karaoke mode.

Press the MOVIE button to set standard theater surround mode.

Automatically detect the input signal source. If many signal sources input, it will select the current signal input preferentially.

Automatically set the parameters of surround.

If 5.1CH input signal is detected, it will automatically adopt standard mode; if 2CH signal source is detected, it will automatically adopt Cyber Logic.

Press the MUSIC button to set standard music modeAutomatically detect the input signalsource.

If many signal sources input, it will select the current signal preferentially.

Automatically set the parameters when enjoying music. If 5.1CH input signal is detected, it will automatically adopt standard mode;if 2CH signal source is detected, it will automatically adopt Hi-Fi mode.

Press the K.R.OK button to set standard

Karaoke mode.

Automatically detect the input signal source. If many signal sources input, it will select the current signal preferentially.

Automatically set the parameters of Karaoke mode.

NOTE: If the signal is too weak or in the blank segment of music when operating, the system will probably appear wrong indications.

2.2.3 Select Input Sound Source

This unit utilizes two input lines of stereo audio sources: VCD, DVD; one line 5.1 channel signal input. Select the input signal source manually through the remote control.

Press the INPUT button on the remote control, and "INPUT TUNER" splays, which means

TUNER has been selected.

Press the INPUT button on the remote control, and "INPUT VCD" displays, which means VCD

2CH input jack has been selected.

Press the INPUT button on the remote control, and "INPUT DVD" displays, which means DVD

2CH input jack has been selected.

Press the INPUT button on the remote control, and "INPUT 5.1CH" displays, which means

5.1CH input jack has been selected.

The display "BASS driver 1-3" means the first, second and third Bass Enhancer; the subwoofer signal adds into the master channelsignal; turn off the subwoofer line output.

The display "BASS driver 0 " means turn off

Bass Enhancer; normal subwoofer line output.

Bass Enhancer function cannot be started up in Hi-Fi mode.

Press the STANDARD button on the remote control and "STANDARD" will display, which means the system enters standard sound field.

2.2.5 Select Sound Field

1 HI-FI

In 2CH signal input, you may select the Hi-Fi mode to keep the originally musical features.

Press the HI-FI button on the remote control and "HI-FI" will displays, which means the system enters the Hi-Fi mode; if "NVALID" displays, it means the system cannot enter the

Hi-Fi mode.

Bass Enhancer function and operations related to EQ are invalid in Hi-Fi mode.

Pressing the HI-FI button is invalid in

5.1channel input.

3 Cyber Logic

In order to make 2 channel input signals have multi-channel sound field effect, you may select

Cyber Logic sound field.

Press the CYBER LOGIC button on the remote control and "CYBER LOGIC" will display, which means the system enters Cyber Logic sound field: if "INVALID" displays, it means the system cannot enter Cyber Logic

Cyber Logic mode is invalid in 5.1 channel signal input.

2 Standard

In order to keep the correspondence with input signals and adjust output timbre according to personal habit, you may select the standard sound field.

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4 Surround

In order to cater for different listening

Environments and meet different sound effect requirements of customers, you may select different surround modes in 5.1 channel signal input status.

Press the SURR button on the remote control in 5.1 channel signal source input, the surround will display.

Press the SURR button on the remote control

Repeatedly; you may select the environment

Modes between Affectional movie, Sowordsmen movie, Gunfignt movie, Sci-fi movie and music.

The environment surround is invalid in 2channel signal input status.

The environment surround is invalid if microphone is inserted.

2.2.6 Adjust Volume

1 Master Volume

When the current sound is too high, too low or unsuitable, you may press the MASTER VOL on the front panel or remote control to adjust the volume of all channels.

Press the "+" button of master volume on the front panel or remote control to increase all channels' volume simultaneously; the max volume is 60.

Press the "-" button of master volume on the front panel or remote control to decrease all channels' volume simultaneously; the min volume is 0.

The master volume displays as the example:

"VOL: 20”

may adjust surround left level to make it suitable to the sound field.

Press the SPEAKERS button on the remote control and "SL: 00" will display. Operate as follows:

Press the " " button on the remote control to increase the volume of surround left. The max level is +60.Press the " " button on the remote control to decrease the volume of surround left.

The min level is -60.

NOTE: The surround left level cannot beadjusted only when left and right channels have output.

When sound of surround right is unsuitable, you may adjust surround right level to make it suitable to the sound field.

Press the SPEAKERS button on the remote control and "SR: 00" will display. Operate as follows:

Press the " " button on the remote control to increase the volume of surround right. The max level is +60.Press the " " button on the remote control to decrease the volume of surround right.

The min level is -60.

NOTE: The surround right level cannot be adjusted only when left and right channels have output.

6 Subwoofer level

When sound of subwoofer is unsuitable, you may adjust the volume of subwoofer speaker and the level of subwoofer channel to make it balanced to the sound field.

Press the SPEAKERS button on the remote control and "SW: 00" will display. Operate as follows:

- 10 -

Press the " " button on the remote control to increase the volume of subwoofer. The max level is +60.

Press the " " button on the remote control to decrease the volume of subwoofer. The min level is -60.

NOTE: The subwoofer level cannot be adjusted only in Hi-Fi and Bass Enhancer conditions.

2.2.8 EQ function

Due to the personal like to music, you may adjust

EQ to meet your own needs. If the music tempo is not enough or full, adjust bass; if the voice is unclear, adjust middle frequency; if the musical details are not rich, adjust treble.

1 Pre-set EQ

When the sound of master volume is too weak or unclear, you may directly use pre-set EQ mode to make it accordant with the current music.

This unit utilizes 8 EQ modes: Rock, Jazz,

Classical, Pop, Disco, Rap and Blues.

Press the EQ button on the remote control to display the EQ curve.

Press the EQ button repeatedly to select the

EQ mode accordant with the current music.

EQ mode cannot be adjusted in Hi-Fi mode.

2 Multi-band EQ

When the sound of master volume is too weak or unclear, you may set EQ mode yourself to meet you own taste.

Press the "AUTO EQ" button on the remote control to display the current EQ curve. There is a cursor flashing in the current frequency.

Press the " " button on the remote control to select the high frequency. The flashing cursor moves rightwards until the rightmost.

Press the " " button on the remote control to select the low frequency. The flashing cursor moves leftwards until the leftmost.

Press the " " button on the remote control and the current frequency level increases until the maximum.

Press the " " button on the remote control and the current frequency level decreases until the minimum.

EQ mode cannot be adjusted in Hi-Fi mode.

3 Auto EQ

When the sound of master volume is unsuitable to you listening, you may select auto

EQ.

The unit will automatically analyze the current spectrum to set the current EQ according to the current music.

Press the AUTO EQ button on the remote

EQ function

Auto EQ setup is invalid in Hi-Fi mode.

channel level is too high or too low, the system will adjust automatically

2.2.9 Parameter Processing

To memory the current parameter for later use, or use the defauly parameter, the Memory and

Call functions will be used. The current parameters to be adjusted include: Channel

Level, EQ, Bass Enhancer, Sound Field,

Environment Surround, MIC Volume, MIC Treble,

MIC Bass, MIC Delay, MIC Echo and Voice

Modification.

1 Call Default parameter

Press the number buttons 1-8 on the remote control and "CALL 1-8" displays.

Setup will be processed automatically according to the default parameters.

2 Memory Parameters

Press the "SAVE" button on the remote control first to display "SAVE "

Press the number buttons 1-8 on the remote control again under the display "SAVE "

The current parameter is memorized into the corresponding number buttons and "SAVE 1-8" displays.

3 Call parameters

Press the "CALL" button on the remote control first to display "CALL "

Press the number buttons 1-8 on the remote control again under the display "CALL "

The parameters memorized in the number buttons before will be adopted currently and

"CALL 1-8" displays.NOTE: Due to some unexpected reasons, the user-memorized parameters will probably be lost, so please adjust again and then memorize. The system will automatically check the parameter saved ast time when switching on this unit. When the

- 11 -

5 Delay

When inserting microphone to sing Karaoke, you may adjust microphone delay when the sound is not full.

Press the "DELAY" button on the remote

" " of microphone. The adjustable range is 0~7..

The microphone delay displays as "MIC

DELAY 2”

The microphone delay cannot be adjusted when not inserting microphone.

7 Wide Field

When inserting microphone to sing Karaoke, you may select to switch on/off Karaoke wide field when the sound field is not wide.

Press the "WF" button on the remote control to display "MIC WIDE ON", which means Karaoke

Wide Sound Field is switched on.

Press the "WF" button on the remote control again to display "MIC WIDE OFF", which means

Karaoke Wide Sound Field is switched off.

The karaoke WF button cannot be selected when not inserting microphone.

NOTE: If noise appears when adjusting Karaoke, please refer to TROUBLESHOOTING for details.

6 Modify

When inserting microphone to sing Karaoke, you may select microphone euphonize mode when the sound is unsuitable.

Pressing the "MODIFY" button on the remote voice"NATURAL", "Full", "Fruity", "Bright" and

"Ringing".

The MODIFY button cannot be selected when not inserting microphone.

2.2.11 Tuning Function

Auto Tuning One:

1 Press INPUT button on the front panel or remote control to select TUNER as the input sound source.

7 Wide Field

When inserting microphone to sing Karaoke, you may select to switch on/off Karaoke wide field when the sound field is not wide.

- 13 -

2 Press BAND button on the front panel or remote control to select receiving wave band.

3 Press TUNING / button on the front panel or remote control for above 5 seconds to automatically tune upwards/downwards until your needed radio station programs. When programs are searched, it will stop searching automatically.

3 ¡¢

NOTE: 1. This operation will search and save automatically, so the user-preset programs will be covered.

2. Pressing TUNING / button may stop the function in the course of this operation.

If the tuning searching stops in imperfect radio station (because of weak radio station signals or radio wave interferes), please change into manual tuning method.

Clear Radio Station

If you do not need the preset radio station, you may clear it by using CLEAR button on the remote control with the help of number buttons

0~9.

1 Press CLEAR button on the remote control.

2 Press the serial number of the radio station that you want to clear in the course of the screen's displaying”CLEAR " to finish this operation.

If the tuning searching stops in imperfect radio station or radio wave interferes, please continue operating.

If the tuning searching stops in imperfect radio station (because of weak radio station signals), please change into manual tuning method.

4 The following save and call operations are the same with manual tuning operations.

Auto Tuning Two:

1 Firstly select TUNER as the current input sound source according to the operations oF

"Manual Tuning", and then select the wave band to be received.

2 Press MEMORY button on the front panel or remote control, and then press TUNING / button for above 0.5 seconds during the course of displaying MEMORY to enter the radio station auto searching status.

NOTE: 1. This operation is beyond retrieve, so please take care to operate.

2. If you clear the radio station incautiously, you may save again according to the select operation.

The Explanation of MODE button

This unit has two working modes in the receiving status: AUTO/MANUAL

1 In AUTO working mode, if you select FM wave band, this unit will automatically recognize the radio station program is mono signal or stereo signal and keep the mono or stereo receiving status.

2 If the received radio station program has louder noise or cacophony in stereo status, you may switch to MANUAL working mode.In this way, the unit is in mono receiving status to decrease noise and cacophony generally.

You may switch the two working modes through

MODE button on the remote control.

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Antenna Connection

You may use our accessional AM and FM indoor antenna when in bad receiving effect. Generally speaking, these antennae can supply enough signal strength.

Connect to AM Round Antenna

1 Push the jack button to open it.Push the jack button to open it.

2 Connect the AM round antenna cord to AM

ANT and GND terminals.

3 Let go of the button to clamp the speaker cord. Pull the cord lightly to check the connection is right or not.

NOTE: 1. AM round antenna should be placed far away from the equipment. You may put up on the wall or on the bookshelf.

2. AM round antenna and outdoor antenna can be used at the same time.

Connect to FM Antenna

Connect to the indoor FM antenna

Connect the accessional indoor FM antenna to

75 UNBAL.FM ANT terminal.

NOTE:Do not use the outdoor and indoor FM antennae at the same time.

How to Connect

Push the jack button to open it.

Insert the speaker cord.

Let go off the button to clamp thespeaker cord.

GND (Grounding) terminal

In order to ensure the safety and decrease the interference, please well connect the GND terminal. The better grounding method is insert the metal pole into wet ground.

4 Connect the AM round antenna to the stand.

AM round antenna

2.2.12 Other Operations

1 Mute

Mute the sound to make your conversation or answering telephone not be affected by music.

Press the MUTE button on the remote control to mute the sound and the display "MUTE" flickers.

5 Adjust the direction of AM round antenna to get the best receiving effect.

Rotate

Mute

- 15 -

2 Child Lock

To prevent the children wrongly pressing the front panel buttons, you may lock the buttons on

Other Operations

the front panel.

Press the CHILD LOCK button on the remote control to display "LOCK". The buttons on the front panel are invalid and now "LOCKED" displays.

Press the CHILD LOCK button on the remote control again to display"UNLOCK" and the fronta pnel buttons can be normally used.

The DISPLAY button cannot be selected when no signals input.

3 Display

To make the display spectrum colorful, we have set many kinds of spectrum display means. You may press the DISPLAY button to select.

After switching on the unit, it will automatically select a kind of spectrum display mode every third moment or so.

Pressing the DISPLAY button on the remote control can cancel auto switch and select your favorite display mode.

Pressing the DISPLAY button on the remote control repeatedly can select many kinds of spectrum display effects until auto switch.

4 Default

When the system parameters adjusted disorderly, you may restore the default settings.

Press the DEFAULT button on the remote control to display "DEFAULT".

The unit automatically sets the default parameters.

Default

- 16 -

Chapter Three Principle and Servicing

Section One Principle of the Player

AV225T (RU) is an advanced power amplifier with complete functions. Based on the former power amplifiers, it adopts LCD screen, with sky blue background matched with 16 different kinds of spectrum display styles, in addition, this player is with tuning function and it is an excellent selection for users who love listening to radio.

3.1.1 Composition of the player

1. Volume board: select input signal source, Cyber Logic and bass enhancer control.

2. Signal processing board: Karaoke signal processing and 5.1CH signal amplifying.

3. MCU board: player control, frequency point gating, and auto search circuit.

4. Control panel: LCD display, remote keyboard and background light display.

5. Power board: supply the working voltage required by each unit circuit and perform player protection function.

6. Power amplifier board: perform power amplifying to 5.1CH analog signal.

7. Digital tuner: receive radio signal and then send to power amplifier for signal processing.

8. MIC, headphone board: MIC signal input, headphone amplifying output circuit.

9. Video input and output board: fulfil the switch of VCD, DVD channel.

3.1.2 Function and features

Built-in 5CH power amplifying, applicable to AC-3/DTS and stereo music replay. Main channel

80W, central/surround 15W with strong power.

AC-3/DTS, VCD, DVD input jack and subwoofer output jack.

6CH volume control and separate level control, with 7-band electronic equalization.

Bass enhancer system, Cyber logic function and Hi-Fi playback function.

Q-play function of movie, music and Karaoke.

Multiple EQ modes, applicable to different music styles.

Auto spectrum analysis compensation function performs compensation to signals automatically.

Complete Karaoke function, including separate MIC volume control, high/low tone adjustment, voice compensation, delay and echo adjustment, Karaoke wide sound field function.

- 17 -

220V

XS1

XS2

Power board

Transformer elementary

SWITCH

Signal output

XL100

XS7

XS3

Transformer

XS8

XS4

SWM

RLY0

P_RC

OVER

XP7

L2

R2

C2

SL2

SR2

VC+

GND

GND

VC-

XP8

XP13

XP9

SWM

L1

R1

C1

SL1

SR1

RLY

P_RC

P_LRM

P_CSM

XS13

XS9

Video board

XS101

Tuner socket

XS20

XP101

Volume board

XS22

XP20 XP22

Xp101

Sublevel coil

D+5V

DGND

L1

R1

CPU board

XP23

XS25

XS23 XS6

+12V

GND

-12V

Sublevel coil

+12V

GND

GND

-12V

Control panel

XP25

MIC holder board

XP12

XS102

XP102

XP100

XS103

XP103

XS12

TUNER(L/R)

VCD(L/R)

DVD(L/R)

5.1CH(L/R)

A

B

L/R

L/R

S-C/S-SL/S-SR

Volume board

5.1CH(C/SL/SR)

5.1CH(SW)

DLSPLY

5.1CH(C/SL/SR)

5.1CH(SW)

S-C C/SL/SR/SW

MIC

S-C

D-SW

A

B

5.1CH

LR_T

C/SL/SR

Mix

SW

L/R

C

SL/SR

L/R/C

MIC

Headphone amplifier

VCD

DVD

3

4

1

2

5

6 MIC input

MIC, headphone board

Video in/out board

LR

C/SL/SR

Signal board

Power amplifier board

L

R

C

SL

SR

Preposition power

VS+ GND VS-

Power

Load test

SW-OUT

DVD all-in-one input

MIC

+12V

AGND

-12V

Power

±6.8V

Switch in bass enhancer and line output

OK volume tone

+6.8V

AGND

-6.8V

L/R

SW

OKL/OKR

Echo adjustment

Delay adjustment

DIST

MIC direct connection

Clipping C

OK-R

Clipping

OK-L

+12V

SR/SL

AGND

-12V

-VS

Power

±6.8V

+5V

+6.8V

AGND

-6.8V

+5V

Control panel

LCD display intermit

Detect

P_SELECT

P_SEARCH

EEPROM

24C02

Reset

circuit

CPU board

P_CHARGE

CPU

P_DO-P_D7

RST/RS/RW/PE

P REM

PT2222 remote control buttons array

Remote control receiving

Relay drive

SW mute and relay state detect

VC+

AGND

VC-

Main power amplifier power

L

R

C

SL

SR

Power board

Section Two Unit Circuit Principle

3.2.1 Volume board circuit

AV225T (RU) has 4 kinds of input means in all: tuning input, VCD, DVD stereo input and 5.1CH input. The Cyber logic function of AV225T (RU) is to achieve C, SR, SL and SW signal through buffer and processing of adder and subtracter after sampling from L, R channels. In this circuit, electronic simulation switch is adopted to fulfil the switch in all kinds of state. Signal flow is shown as the following figure 3.2.1.1:

Tuner

VCD

DVD

5 1CH

L

N101

CD4052

Electronic switch

R

N107B

N104A

SL

N104B

N106

M62446

OUT

SR

N105B

N10 5A

N107A

SWIN

C

SR

SL

SW

S SR

S SL

S-C

S-C

CD

4053

Electronic switch

N102

CD

4053

Electronic switch

N103

N108B

DISPLY

Figure 3.2.1.1 Volume board signal flow chart

- 20 -

1. Input selection and sound field processing mode

The input selection of AV225T (RU) is fulfilled through electronic switch CD4052 and CD4053, and the truth value table is shown as follows:

CD4052 Truth value table

Mode

Pin

A

B

Tuner

0

0

VCD

1

0

DVD

0

1

5.1

1

1

A

0

1

CD4053 truth value table

X

X0

X1

B

0

1

Y

Y0

Y1

C

0

1

Z

20

Z1

(1) 5.1CH input state: now A, B, 5.1CH of M62446 are in high level, L and R channel signals of

5.1CH input terminal are outputted from pin 3, 13 of N101 respectively and then sent to IC N106 for volume and tone adjustment; meanwhile C, SR, SL signals of 5.1CH input terminal are outputted from pin 14, 15, 4 of N102 and then sent to IC N106 for separate volume adjustment; in addition, SW signal of

5.1CH is outputted through pin 4 of N103, amplified by N107A and then sent to M62446.

(2) 3 kinds of analog input modes: AV225T (RU) has 3 kinds of analog input modes: tuning signal,

VCD and DVD are controlled through signals A, B separately. Please refer to CD53 truth value table for reference.

(3) AV225T (RU) has 3 kinds of sound field modes in all: standard, Cyber logic and Hi-Fi.

A. Standard: under the control of the player MCU, when bass enhancer is off, left channel, right channel and subwoofer have output; when bass enhancer is on, only left and right channels have output.

B. Hi-Fi: under the control of MCU, only left and right channels of M62446 have output; when bass enhancer is off, volume adjustment is off.

C. Cyber logic: pin 9, 10 of electronic switch N101 (CD4052) select a group of analog left and right channel input signals according to the truth value table, the left and right channel signals are outputted from pin 3, 13 through the electronic switch inside N101 and divided into 2 ways: one way is sent to pin

13, 15 of M62446 for electronic volume and tone adjustment, and the other way gets SW, S-SR, S-SL and S-C signals though buffer and adder and subtracter, in which S-C, S-SR and S-SL signals are sent to pin 12, 2, 5 of N102, under the control of 5.1CH signal, N102 selects Cyber logic signal input (see

Cd4053 truth value table) from Cyber logic and 5.1CH signal, central, right surround and left surround signals are outputted from pin 14, 15 and 4 respectively and then sent to pin 11, 8 and 9 of M62446 for volume adjustment. Another SW signal is outputted from N107A and then sent to pin 6 of M62446.

5.1CH signal sen t to M62446 outputs from pin 31, 36 after volume adjustment, and then is outputted by

XS20 flat cable holder to signal board.

(4) The relationship between the switch in all kinds of sound sources and sound handling mode in input circuit is show as the following figure 3.2.1.2:

- 21 -

Press INPUT button to select circularly

2 kinds of analog input modes

5.1CH input mode

Hi-Fi mode

Standard mode

Only L/R channel has output, sound field and EQ setup is invalid

Only L, R and SW channel has output, capable of performing sound field and

EQ setup

Cyber logic mode

6CH output, capable of performing cinema sound field and EQ setup

6CH output, capable of performing cinema sound field and EQ setup

Figure 3.2.1.2 Illustration between input circuit

2. Control circuit

The latched, data and clock signals outputted by MCU (N100) pin are sent to pin 39, 40, 41 of

M62446, pin 1, 2, 3, 4 of M62446 output control level to select the input signal and spectrum sampling signal. Other functions, such as volume and tone adjustment, are also controlled by the three control signals. The display of display screen is controlled by CPU directly.

3. Spectrum sampling circuit

The spectrum sampling in AV225T (RU) is sent from pin 13 of N103 to N108B for amplification, and then sent to spectrum gating circuit. 5.1CH of M62446 selects sampling signal. When selecting Cyber

Logic, 5.1CH control signal is low level, now pin 9, 11 of N103 is low level, and it is known from the truth value table that the output is X0 and Z0 and this two sampling signals are grounded. It is known from

Cyber logic principle, centre, surround and subwoofer channels are all produced by left and right channel signals, but in S-C signal, complete left and right channel signals are included, so it is ok to sample from S-C only. Therefore, S-C signal is outputted through R195 (pin 13 of N103) to N108B and added with OK-R signal for the amplification of spectrum sampling signal, and then sent through XS20 to frequency point gating and auto search circuit; the same, when selecting 5.1CH input, 5.1CH control signal is high level, pin 14, 15, 4 of N102 select pin 14, 4 of X1, Y1, Z1 of N103 and connect to X1, Z1, thus, the 6-channel signals are outputted through pin 13 of N103 to N108B and added with OK-R signal for the amplification of spectrum sampling signal, and then sent to frequency point gating and auto search circuit through XS20.

4. Tuning function

This player has tuning function, which provides a good selection for users. It directly controls digital tuner through MCU to receive audio signal, and then output after amplification by power amplifier. The clock and data line of digital tuner is commonly used together with M62446, the other two control lines are directly connected to MCU, L, R signals after being handled by digital tuner are directly sent to pin 1 and 12 of N101 CD4052 for gating input.

- 22 -

3.2.2 Signal processing board circuit

The signal board performs mixed amplification to 5.1CH signal sent from volume board, voice signal sent from microphone, headphone board and Karaoke echo signal.

1. AV225T (RU) Karaoke circuit

(1) Function: this circuit is to reset by loudspeaker after handling voice and being amplified by power amplifier. It includes voice beautification circuit, wide sound field processing circuit and Karaoke’s echo and delay adjustment circuit.

(2) Function of IC of Karaoke circuit is shown as the following table:

IC SN IC name IC function

N201

N200

4558

PT2315

Operational amplifier performs preamplification to voice signals

Karaoke volume adjustment, including tone adjustment

N205 CD4053 Electric switch

N209 PT2399 Karaoke echo settlement

(3) Karaoke signal flow chart

MIC

N20A1

N200

N202B N203B

IC SN IC name IC function

N207 CD4051 Karaoke delay adjustment

N208 CD4051 Karaoke echo adjustment

N204 4558 Inverter

N209

N204

N205

N202A

N207

Directly connected

OK

M i x e d output

V200 N100

N211

N100

P_OKT

N208

Figure 3.2.2.1 Karaoke signal flow chart

Shown as in the figure 3.2.2.1, when microphone is inserted, MIC signal is sent to N201A operational amplifying circuit for amplification. One path of MIC signal after being amplified gives MCU a microphone input identification signal P_OKT through VD201 rectification filtering control triode V200 after being amplified by N202A; when there is signal input, P_OKT is low level, MCU makes N210

CD4094 send out KM low level signal to make triode V103, V105, V104 ccutoff and then to make MIC signal can output; the other path is coupled by C219 to pin 6 of PT2315, and then output from pin 16 after internal volume adjustment to N202B and N203B for amplification. The signal after being amplified of N203B is divided into two paths, one path outputs directly, and the other path is coupled byR222,

C247 to PT2399 inside for delay and echo adjustment and then outputs from pin 14, and then mix output

- 23 -

Together with direct connection OK signal through N204B, while OK-R is outputted from pin 14 after being gated by N205 and then overlapped to left and right channels.

In this circuit, the low frequency exalt network composed by triode V201 connected to the reverse end of N202B is mainly to exalt 75HZ low frequency signal.

When performing delay adjustment to PT2399, firstly give control signal to MCU, and MCU controls

N207 after being extended by N211 IC CD4094, then selects different resistance value to connect into pin 6 of PT2399 to reach the purpose of delay adjustment.

Similarly, through changing the resistance value in R229 to change the echo level overlapped to direct connection signal, the echo adjustment is realized.

The wide sound field control signal of Karaoke is sent by N211 to pin 11 of N205, when it is high level, pin 14 of N205 is connected to X1, now the phase of OK-R signal is reverse from that of OK-L, sound field is widened and Karaoke is in wide sound filed state. On the contrary, the phase of OK-R signal is the same with that of OK-L, Karaoke is in the narrow sound field state.

In addition, microphone plug has a detect signal P_MICDET, and it composes the detection to microphone inserting together with the circuit composed of V202. When microphone is not inserted, it is low level, V202 cutoff; when microphone is inserted, it is high level, V202 is on, now turn off scene surround mode and forbid tuning.

Otherwise, there is OK auto mute function. When P-KT cannot detect any signal in a continuous period, MCU will send out a control signal to make KM be high level, triode V103, V105, V104 is on to mute OK signal to advance SNR of the player and better listening effect.

(4) Scene mode signal flow

AV225T (RU) has a special function, that is, it may realize switch in 5 kinds of scene mode when there is no Karaoke, which is fulfilled by Karaoke part. Signal flow chart is shown as in the figure 3.2.2.2:

R - 1

L - 1

C - 1

N205

N203B

N209

N204B

Mixed output

N207

N208

Figure 3.2.2.2 Scene mode signal flow chart

When pin 9 and 10 of N205 is in high level, the sampled L, R, C signals are outputted by pin 3 through N205 gating, after being amplified by N203B, one path is sent to PT2399 inside for echo and delay adjustment (controlled by IC CD4094), the effect after adjustment is overlapped to L, R, C channel

- 24 -

To form various scene modes. Seen from this, its principle is the same with that of Karaoke. In scene mode, it functions only when microphone is not inserted and in 5.1CH mode at the same time.

2. Bass enhancer circuit

BURST sent out by N210 is bass enhancer on/off signal. When it is high level, it is added to base electrode of V102, V102 is on, base electrode outputs low level, V107, V100 are cutoff, SW signal outputs to external terminal normally, at the same time, BURST high level signal is added to emitting electrode of V108, V108 is on, collector electrode output high level is added to the base electrode of

V101, V101 is on to make SW signal grounding and it will not be overlapped to left and right channel signals.

Reversely, when BURST is low level, V100 is on, SWM signal cannot output from external terminal, at the same time V101 is cutoff, SW signal is overlapped to left and right channel signal.

Bass enhancer of AV225T (RU) is divided into 3 levels, the principle is to change the high/low of bass enhancer level through changing SW output volume of M62446.

Meanwhile, SWM signal is added to relay through XS9, when relay is disconnected, SWM signal is grounded to make subwoofer terminal have no output to avoid the concussion to speakers at the moment of power-on.

3. 5.1 signal and Karaoke signal mixed amplification circuit

Left and right channel signals of 5.1 signal, after being mixed with SW signal and being amplified by

N101B, N100B, are sent to the reverse end of N101A, N100A, at the same time, OK-R, OK-L signals are respectively added to the reverse end of N101A, N100A and then output from pin 1 of N100A, N101A to power amplifying circuit for amplification after the mixed amplification of N100A, N101A.

Meanwhile, the centre C-1 signal sent from volume board is added to the pin 6 reverse end of

N102B, and then added to the reverse end of N102A after amplification. Now the C1-1 signal after processed by echo (scene surround mode) is also required to add to the reverse end of N102A and mixed amplifying with it, then sent to centre channel power amplification circuit.

Surround SR-1, SL-1 signal of the other path volume board is directly sent to surround channel power amplification circuit.

One path of 5.1 signal after mixed amplification is sent to power amplification circuit through XS9, the other path forms DIST signal (distortion detect signal) to MCU board through R111, R112, R142,

R145, VD100-VD104 to perform auto gain adjustment to control the volume output.

3.2.3 MCU board circuit

MCU board is composed of player control circuit, auto search input signal and spectrum analysis circuit.

- 25 -

1. The player MCU control

N100 is the control centre of the player, various control instruction are outputted by it to each controlled circuit to fulfil each control function. +5V power supply is adopted, and pin 40 is its power supply pin. Pin 18, 19 externally connects with 12M crystal oscillator to provide itself with working clock frequency. Pin 9 is its reset pin, when power on, +5V charges C106 through R100. The voltage on the two ends of capacitor cannot change suddenly, so B-pole of triode V100 is low level, that is, V100 is not on, a high level reset signal is given to MCU. When capacitor C106 charging finishes, V100 is on, now reset finishes. Form of this kind of reset circuit is high level reset, and low level is kept.

When the player is working, information of power-on picture and Chinese characters when operating displayed on display screen are all saved in the static memorizer inside MCU. N101 is a state memorizer and it can save the working state of the player at the time of power-off and then call these states until power-on next time to avoid the adjustment of users again. All kinds of user-set sound field modes are also saved in it and can be called when necessary.

2. Input signal detecting, search circuit automatically

DISPLAY signal from volume board is sent to N103A for amplification, after being coupled by capacitor C110, sent to the reverse end of voltage comparator N103B, outputted from pin 7 of N103B, then sent to pin 16 of the player MCU through VD103, V101, R109, R107. When N103B outputs a high level, Vd103 is in reverse cutoff state, B-electrode of switch pipe V101 is high level, now switch pipe

V101 is in on state, and then a +5V P_SEARCH high level is achieved through VD101 voltage regulating to MCU, which means there is no signal input, and the search continues. When output terminal of N103B outputs a low level, VD103 is in positive direction on state, B-electrode of switch pipe V101 is low level, now switch pipe is in curoff state, MCU detects that P_SEARCH is low level, which means there is signal input, at the same time, the search stops. The working principle is as follows:

(1) After power-on, under the control of MCU internal program, data signal is outputted to M62446, then M62446 sends out high/low level to perform scanning to N101, N102, N103 each input port of volume board, at the same time, P_SELECT is high level, V102 is on, now the in-phase end voltage of comparator N103B is about 0.1V. When these input ports have no signal output, voltage of pin 6 of

N103B is less than 0.1V, pin 7 outputs 12V, Vd103 is in reverse cutoff state. It is known from the above analysis, P_SEARCH is high level, which means there is no signal input. After all ports being searched once, it enters standby state automatically; when a certain port has signal input, this signal is compared with pin 5 of N103B through N108B of volume board and MCU board N103A amplification, if voltage of pin 6 of N103B is more than 0.1V, pin 7 outputs -12V, Vd103 is in positive direction on state, now,

P_SEARCH is low level, which means there is signal input, through controlling IC M62446, MCU locks this port that has signal input to enter normal playback.

(2) When pressing “GOTO” button on remote controller, through remote control receiver on the panel, the switch from light signal to electric signal is performed, thus, pin 11 of MCU sends out a high

- 26 -

Level to make V102 in on state, and search also according to the above program.

3. Spectrum analysis circuit

(1) Spectrum analysis circuit is composed of auto spectrum gain adjustment circuit, frequency point gating circuit, A/D conversion circuit and display output circuit, shown as in the following figure 3.2.3.1:

DISPLAY

N104 3

CD4051

Auto spectrum

Gain adjustment

B

N105C

+

-

}

CPU

35HZ

134HZ

300HZ

1KHZ

2.2KHZ

6.3KHZ

16KHZ

N102A

N108

CD4051

Frequency point gating

3

}

MCU

+5V

A/D conversion

-

+

Pin 12 of MCU

Pin 14 of MCU V103

V105

V104

Figure 3.2.3.1 Spectrum analysis circuit

(2) Auto spectrum gain adjustment circuit: in order to avoid the two conditions that when input signal is too weak, screen display range is too low, or when input signal is too strong, full screen will appear,

AV225T (RU) has set auto spectrum gain adjustment circuit and adopted a single-channel 1-selectedfrom-8 electronic analog switch N104 CD4051, with its truth value table shown as follows:

A

B

C

X0

0

0

0

X1

1

0

0

X2

0

1

0

X3

1

1

0

X4

0

0

1

X5

1

0

1

X6

0

1

1

X7

1

1

1

Through changing the resistance value of the reverse end grounding resistor of operation amplifier

N104, gain of the operation amplifier is changed. See the details of the working of the entire circuit. The spectrum analysis signal source (DISPLAY), mentioned above, is sent to the in-phase input terminal of operational amplifier N105C for amplification, and its amplified multiple depends on the ratio of the resistor connected by feedback resistor R130 and N104 electronic switch. When main volume is too high, through the control of MCU, N104 increases the resistance value of grounding resistor automatically and

- 27 -

Decreases the amplified multiple; when main volume is too small, N104 decreases the resistance value of grounding resistor automatically and increases the amplifies multiple.

(3) Frequency point gating circuit: the signals after being amplified by N105C, through C115 coupling, are sent to the 7 bandpass filters composed by operational amplifier, the corresponding frequency range can be confirmed through setting the capacity of its feedback capacitor. On the output end of each filter, a half-wave rectification circuit is connected, through rectification filtering to the AC signal after being amplified DC voltage is achieved. This circuit is mainly to realize frequency point sampling function, which can represent the range of each frequency point in a complete sound signal.

If the low frequency part in sound signal is strong, the DC voltage on the output terminal of 35HZ,

100HZ filter will be higher, similarly, when high frequency part is strong, the DC voltage on10K, 16K filter will be higher. The output terminal of this 7 filters is connected to 7 input terminals of electronic switch

N108 (Cd4051) to make this electrtonic switch quickly and circularly gating in each frequency point. On the output terminal of pin 3 of N108 will output a series voltage values that stand for each frequency point signal range, shown as in the following figure 3.2.3.2:

V

35HZ

100HZ

300HZ

1KHZ

3KHZ

10KHZ

16KHZ

35HZ

Note: the voltage range in the figure is uncertain.

T

Time interval of swich

Frequency point circular gating cycle

Figure 3.2.3.2 Frequency point signal range voltage value

(4) A/D conversion, display output circuit (two cases divided)

1) When there is no signal input, MCU sends a P_CHARGE high level signal to B-electrode of V104, the positive direction end of comparator N102B is low voltage, for the reverse end of N102B gets the partial pressure of R169, R172, thus it will make N102B output voltage with -12V about to make triode

V105 cutoff; C-electrode of V105 will give a high level P_ADINT0 to pin 12 of MCU to inform MCU of not performing A/D conversion. (Pin 9, 10 of N108 has no action and keep in high level)

2) When machine detects signal, MCU sends a P_CHARGE low level signal to B-electrode of V104,

+5V voltage charges C137 through V103; when the voltage value of reverse end is reached, comparator turns over, pin 7 of N102B outputs 12V voltage to make V105 on, C electrode is low level, after MCU

- 28 -

Receives low level signal, 35Hz level gating is immediately finished, and then switches to next frequency Point 100Hz. During the course of conversion, P_CHARGE outputs an instant high level to make V104 on, releases the voltage on C137, and makes the in-phase end of N102B begin the process of 100Hz charging from 0 level. When 100Hz charging finishes, switch into the charge/discharge process of the next frequency point, and this kind of process circles continuously under the control of

MCU. This period of charge, from 0 level to the point that turn over happens, stands for the signal range of the current frequency point. The range is larger, time is longer and range displayed on screen is higher; the range is smaller, time is shorter and range displayed on screen is lower. The digital pulse outputted from the output terminal of N102B adds to pin 12 of MCU through V105 phase, MCU handles it and outputs to panel and makes dynamic spectrum display on display screen. Originally speaking the display of each frequency point performs one by one according to the sequency, for the above circulation process is fast, on the screen we will see the process of a whole spectrum displays. Shown as in the figure 3.2.3.3, the charge time parameter is frequency point signal range voltage value cyclic parameter in the figure 3.2.3.2:

V

V

100HZ

High level discharge

35HZ

Frequency point signal range voltage value switches into time interval

35HZ 100HZ

T

T

Switch time interval

Charge time Charge time

Figure 3.2.3.3 Illustration of "Frequency point signal range

voltage value switches into time interval"

3.2.4 Control panel circuit

Front panel control circuit is the window of man-machine conversation of the player, and it can transmit various operation instructions to MCU to fulfil various operation. At the same time, it is also a window of the player. Users control the working state of the player through it and it is also an important composition of the appearance. Control panel circuit block diagram is shown as in the figure 3.2.4.1:

LCD display

Drive circuit Power

MCU

Remote control receiving

Figure 3.2.4.1 Control panel circuit block diagram

Button

- 29 -

1. Power supply circuit

Control panel power supply of AV225T (RU) has two groups voltage of +3.3V and +5V. The +5V voltage from signal board after voltage regulating supplies power for N102, N103 (74VHC245) and N101

PT2222 respectively through the voltage reduction of three diode VD105, VD106 and VD107.

2. LCD display drive and buttons circuit

This circuit is composed of N101, N102, N103 and LCD. The display is directly controlled by P0 port of MCU, LCD is banded with IC inside. For working voltage of display screen is 3.3V, but the control line level sent out by MCU is 5V, between MCU and LCD display screen, two IC 74VHC245 are used to perform level conversion to change the +5V control level from MCU into +3.3V control level to control the display of display screen.

Buttons circuit of this player is equal to a remote controller. Signal of buttons matrix is received by

PT 2222 and then makes infrared light emitting diode VD100 send out signal through the control of triode gating by pin 7 , then send to MCU for processing after being received by remote control receiver.

3.2.5 Power board circuit

Power board provides each unit circuit of the player with required various working voltage. Shown as in the figure 3.2.5.1, AV225T (RU) adopts a large power round transformer to supply power for main channel, central and surround channel power amplifier.

220V 50HZ

9.8 V

Panel display,

MCU power supply

31V

Rectification filtering

Fan

Left/right channel power amplifying level

15V

Rectification filtering

C , SL, SR channel power amplifying level

Figure 3.2.5.1 Power board power supply block diagram

1. The two groups AC 31V outputted by the first time grade of transformer, through rectification filtering of 8 In5404 and 2 large electrolytic capacitor (15000uF/68V), gets +/-43V voltage to supply power for left and right channels.

2. The two groups AC 15V voltage outputted by the second time grade of transformer, through rectification filtering of 4 In5404 and 2 electrolytic capacitor (4700uF/35V), gets +/- 21V voltage to

- 30 -

Supply power for SL/SR/C channels. In addition, for other IC and operational amplifiers, power is achieved also through voltage regulation of 3-end voltage regulator L7812, L7912 by it to supply power for other IC.

3.2.6 Power amplifier board and protection circuit

1. L/R channel power amplifying circuit

L, R channel power amplifying circuit of AV225T (RU) is composed of discrete components. The composed block diagram is shown as in the figure 3.2.6.1: (take L channel as instance)

AC negative feedback

R121,R109,C105

Composite power amplifying

V132 V112

L IN

Difference amplification

Stage

V102,V103

Voltage amplification stage V105

T e m p e r a t u r e compensation s t a g e V 1 0 6

V101

V116

Mute

Constant current source V104, V107,

Vd102, Vd103

Composite power amplifying V133,

V113

Relay

Speaker

Figure 3.2.6.1 L input block diagram

L channel signal, through R101, R103, C101 coupling, is sent to B electrode of V102; V102 and

V103 are composed difference amplifying circuit of single ended input and single ended output. Sound signal outputs from C electrode of V102 to B electrode of voltage amplifying stage, and then outputs to composite power amplifying stage after voltage amplification. V104, V107, VD102 and VD103 compose constant current source circuit. VD102 and VD103 provide constant base electrode current for V104 and

V107. The emitter electrode resistor of V104 decodes working current of difference amplifying stage, the emitter electrode resistor of V107 decides working current of voltage amplifying stage. V132 and V112 compose multiple unit tube amplifying to make the final stage of power amplifier have strong current amplification capacity and they compose waveform positive half cycle amplification. V133 and V113 compose the negative half cycle amplifying of waveform and its circuit structure is the same with that of upper tube. The function of temperature compensation tube V106 in the circuit has two: firstly, it is the base electrode bias of upper/lower multiple unit tube and its working state decides the static working current of composite power amplifying stage, that is, we can set the static working point through adjusting the on degree of V106, and the usual method is to change the base electrode resistor of V106; secondly, it can automatically adjust the working state of composite power amplifying stage when temperature increases, and the adjustment process is as follows:

- 31 -

Total current of output stage = working current + leakage current

When temperature increases, the increase of leakage current leads to the drift of static working point (unfavourable), at the same time, the leakage current of V106 increases, Uce decreases to make the bias current of output stage decrease to make working state change and working current of back stage decrease to reach the purpose of temperature compensation.

Introduce voltage negative feedback to power amplifying circuit of AV225T (RU) and it is composed of R121, R109 and C105, which can stabilize static working point of difference stage. AV225T (RU) adopts direct output means, R111, C116 (on power board) connected with output end compose Zobel

Network to prevent the high frequency self-exitation caused by the AC inductive reactance of speaker voice coil.

2. Mute circuit

When pressing MUTE button on remote controller, after the photoelectric conversion performed by infrared receiver, a mute signal is achieved to send to MCU, which sends out P_LR high level and

P_CSM high level mute instruction at the same time. P_LRM high level make 2N5401 (V115), S8050

(V101), S8050 (V116) on, left/right channel signal is short circuited to ground to fulfil the mute control function of left/right channel; P_CSM high level makes 9014 (V150)on, 2N5401 (V130) and S8050 (V131) on, centre channel signal is short circuited to ground and centre channel mute control function is fulfilled; at the same time, the on of 9014 (V150) makes 9014 (V151) cutoff, voltage of pin 5 of TDA7265 is positive power voltage, TDA7265 internal mute circuit works to reach surround mute function. When headphone is inserted, HEADPHONE controls LRM and SCM through VD203 and VD204 to make main channel, centre and surround channel mute.

3. C, SR, SL power amplifying circuit

Compared with the former models, the three channels of AV225T (RU) adopt power amplifying IC

CD1875CZ (N104) and TDA7265 (N106) special for audio. As for TDA7265 (N106), it has 11 pins in all, pin 3, 1 and 6 are its positive and negative power pins respectively; pin 10, 8 are its reverse input end, the rated output power of each channel of this power IC may be up to 15W and it is with function of auto mute when power on; it has 5 pins in all, and it is a good-performance power amplifying IC, the application circuit is simple and has 15W power output in rated state. Pin 5 and 3 are positive/negative power pins.

4 Protection circuit

Protection circuit of AV225T (RU) power amplifier is on power board. Protection means of L, R, C channel is through disconnecting relay Y100 when protection starts up to disconnect its output. SR, SL channel fulfils the protection function through mute. AV225T (RU) is with power-on delay protection, central point over-voltage and over-current protection, standby protection.

- 32 -

(1) Power-on delay attracting protection circuit: when power on, working of circuit is stable, and the produced current has great damage to speaker and power amplifier, so delay attracting protection circuit is set. Power-on delay attracting protection circuit is divided into 2 steps: 1. C, L, R channel working process: the AC outputted from transformer, through rectification filtering of Vd113, C110, gets +22V voltage to make VD111 reverse broken-down through charge to C115 by R108 to make Vd111 reverse broken down to make V105, V104 positive direction on to make relay Y100 attracting to realize delay attracting effect. SR, SL channels performs concussion protection when power-on/off through the following means: after machine system resets, MCU outputs a P_CMS high level signal to make V150 on and make V151 cutoff; pin 5 of TDA7265 is power voltage, TDA7265 outputs mute. After delay startup of machine succeeds, the output signal P_CMS of MCU switches into low level immediately, V150 is cutoff to make V151 on, voltage of pin 5 of TDA7265 is about 5V lower than power voltage, SL/SR channel resumes normal output.

(2) Over-voltage protection: on each channel’s output end, a over-voltage sampling resistor is connected, L channel is R116, R channel is R117, C is R118, SR and SL are R120 and R119 respectively.

When just one channel’s central point voltage is more than +3.5V or less than -3.5V, V101 or V102 is on to make their C electrode voltage decrease, B electrode of V103 is pulled down to make V103 on, relay is disconnected finally and over-voltage protection is fulfilled. Working process is shown as the following figure 3.2.6.2:

O v e r - v o l t a g e sampling resistor is connected to e a c h c h a n n e l

L channel i s R 11 6

When more than +3.5V

When less than -3.5V

V101 is on

V102 is on

Voltage of C electrode decreases

V103 is on

Relay disconnects and protection starts up

Figure 3.2.6.2 Over-voltage protection flow chart

(3) Over-current and short-circuit protection: on the output load resistor of L, R channel, a overcurrent sampling triode is connected. Sampling triode of L channel is V114 (on power amplifier board), load resistor is R126, R127 (on power amplifier board). C, SR, SL channel power amplifying IC is with over-curent protection function inside. Only over-current appears in L channel, the voltage decrease that produces on R126, R127 will increase. Once the voltage decrease of R129 (on power amplifier board) is more than 0.7V, V114 will be on, V103 is also on, and relay is disconnected finally and shortcircuit protection is finished. Working process is shown as the following figure 3.2.6.3:

Over-current sampling triode is connected to each channel

L channel is V114

Voltage decrease on R126, R127 increases when over-current

V114 is on

C electrode

voltage decreases

Figure 3.2.6.3 Over-current and short-circuit protection flow chart

V103 is on

- 33 -

Relay disconnects and protection starts up

Similarly, when over-current appears in R channel, (on power amplifier board) voltage on R159 will be more than 0.7V to make (on power amplifier board) V129 on, and also make V103 on, relay is disconnected finally to reach the purpose of protecting speaker.

3.2.7 MIC, headphone board

MIC signal is directly sent to signal processing board through flat cable XP12, the principle has been specified in section 3, so it is omitted here. The main element of headphone part is headphone amplifier N100 PT2308. It is a dual-channel operational amplifier, has 8 pins in all and adopts signal power (+5V) to supply power. Pin 1 and 7 are two channels’ signal output ends; pin 2 and 6 are two channels’ reverse input ends; pin 3 and 5 are two channels’ in-phase input ends; pin 8 and 4 are positive and negative power pins.

When no headphone is inserted, headphone detect signal PH_SW is low level, now the mute control signals P_LRM and P_CSM of main channel, centre and surround channels are low level, these

5 channels all have normal output; when headphone is inserted, PH_SW is high level, now diode VD203 and VD204 on signal board make the mute control signals P_LRM and P_CSM of main channel, centre and surround channels be high level, and make main channel, centre and surround channels have no output on account of mute. Please refer to mute circuit part for the principle. At the same time, triode

V111 is made on through the resistor R166 on signal board, so V110 and V109 are cutoff to cut the power supply loop of fan; when volume is more than 45dB, fan tunning is forbidden to facilitate to listen with headphone.

Please be noted here that headphone detect signal PH_SW is not connected with MCU, but is set by machinery structure of headphone jack.

3.2.8 Video in/out board circuit

AV225T (RU) is with two-channel composite video input (VCD, DVD or 5.1CH) and one-channel composite video output (VCD, DVD or 5.1CH).

Input/video switch of video signal is realized through a electronic switch CD4051 (N101), the truth value table is shown as follows:

A

B

C

X0 X1 X2

1

0

0

0

0

1

0

0 0

1

0

X3

1

X4

0

0

1

X5

1

0

1

X6

0

1

1

X7

1

1

1

- 34 -

When select VCD channel, pin 1 and 2 of N106 (M62446) of volume board sends out two control signals of A and B, and one INH control signal. A=1, B=0, INH=0, known from Cd4051 truth value table that output pin of CD4051 (pin 3) selects X1, ie, VCD channel, now, in terms of volume board working principle in section 2, A and B also control gating of audio part CD4052, that is, audio channel also selects VCD channel, thus, the synchronous switch of audio and video of VCD channel is realized.

Similarly, for the synchronous switch of audio and video of DVD channel, pin 1 and 2 of N106

(M62446) of volume board send out 0, 1 and INH=0 control signal of A and B to fulfil the corresponding switch. When 5.1CH is selected, A=1, B=1, INH=0, the audio/video switch in 5.1CH is fulfilled.

At last, composite video signal outputs through triode V101 (1015) .

When INH=1, CD4051 gas no output.

- 35 -

Section Three Servicing Cases

3.3.1 Servicing instances

Instance 1 Trouble symptom: power-on protection

Description: relay not attracting and display “System abnormal, auto protection”.

Analysis and troubleshooting: system protection after power-on, relay not attracting; shown as in the figure 3.3.1.1, test whether L, R, C, SL, SR of power board flat cable holder XP8 has DC output, pin 1 of power board flat cable holder XS7 is tested high level, pin 2 is low level, C electrode of triode V101 is high level, known from the above test that protection is not caused by over-current and over-voltage

(you may also unplug XP7 and XP8 flat cable holder and check whether it also has protection). The anode voltage of diode VD112 is tested 0, so relay is judged abnormal. It is normal after changing relay and trouble is removed.

L2

R2

C2

SL2

SR2

VC+

GND

GND

VC-

XP7

OVER

P_RC

RLY0

SWM

4

3

2

1

CON4

RLY0

SWM

VD108

R101

IN4148

1K

VD113

1N4004

R102

1K

R103

47K

C126

103

R104

10K

V100

C9014

R100

47/3W

R105

10K

XP8

4

5

6

7

1

2

3

8

9

CON9

VC+

VC-

R111

4.7/1W

R112

4.7/1W

R113

4.7/1W

R114

4.7/1W

R115

4.71W

C1160.1u

C1170.1u

C1180.1u

C1190.1u

C1200.1u

C110

220u/35V

C122

104

R106

4.7K

L100

0.7UH

L101

0.7UH

V101

C9014

V102

C9014

C113

220u/16V

R109

10k

C114

220u/16V

R116

51K

R117

51K

R118

47K

R119

47K

R120

47K

1

2

XL101A

WP6

VD110

IN4148

R108

100K

R107

100K

C121

103

V103

C9015

VD111

C115

47U/25V

5.1V

1

2

XL101A

WP6

R110

56K

9

10

11

12

Y100

1

5

2

6

3

7

4

8

SWM

RLY0

XL101A

1

2

WP6

13 14

XL100A

1 1

XL100A

2

WP4

2

WP4

V105

C9014

RELAY-4

VD112

1N4148

V104

C8050

Figure 3.3.1.1 Protection circuit diagram

Note: 1. After relay being used for a period, working state may be unstable and some abnormalities will appear. For instance, relay not attracting after power-on sometimes; each contact point not fully contacted after relay attracting; CPU not detect RLY0 signal (this signal is low level after relay attracting); auto protection.

- 36 -

2. Power-on protection causes: over-current protection, over-current protection and CPU not detect

RLY0 signal: test whether each output channel has DC output; when power-on protection trouble appears, make clear which kind of reason caused this. The common protection is that abnormal centre or surround power IC causes that output signal has DC.

Instance 2 Symptom: no sound output

Description: system not detect signal after power on, no output when switching various sound sources

Analysis and troubleshooting: select VCD channel after power on, input sine wave signal, shown as in the figure 3.3.1.2; test volume board capacitor C133, C134, no signal; test volume board capacitor

C122, C121, also no signal; pin 5 and 14 of N101 have signal; test power voltage of pin 7 and 8 of N101, normal; it is known primarily that N101 has input but no output, change N101 and N101 still has no output after changing, so it is judged that N101has no problem, it is that A, B signal of N106 have trouble when this channel has not been selected; change N106, output is normal after changing and trouble is removed.

B

A

VCD-R

12

14

DVD-R

15

5.1CH-R

11

VCD-L

DVD-L

5.1CH-L

1

5

2

4

6

B

9

N101

CD4052

X0

X1

X2

X3

X

Y

Y0

Y1

Y2

Y3

INH

VDD

VSS

B

VEE

A

13

3

16

A+6.8V

8

7

A-6.8V

S-C

5.1CH-C

12

13

S-SR

2

5.1CH-SR

1

S-SL

5.1CH-SL

5

3

5.1CH

6

11

10

9

5.1CH

N102

CD4053

X0

X1

X

Y0

Y1

Y

Z0

Z1

Z

VDD

INH

A Vss

B

C VEE

14

15

4

16

A+6.8V

8

7

A-6.8V

R134

150K

R135

150K

R136

150K

R133

150K

A+6.8V

C115

47u/16V

C116

47n

B

A

INH

5.1CH

R160

100K

R161

100K

R162

100K

R158

100K

R159

100K

R157

100K

R153

22K

R154

22K

R155

22K

R156

22K

B

A

INH

5.1CH

5

C117

6

4.7u/16V

7

C118

8

4.7u/16V

C119

9

4.7u/16V

10

3

4

1

2

C120

11

4.7u/16V

12

C121

13

4.7u/16V

14

C122

15

4.7u/16V

16

17

C124

15n

C123

822

18

19

20

C125

0.33u

21

C143

47n

C142

47u/16V

OUT4 DVDD

42

L101 100uH

OUT3 CLK

41

OUT2 DATA

40

OUT1 LATCH

39

AVDD

SWIN

GNDS

SRIN

SLIN

GNDC

CIN

GNDR

RIN

GNDL

LIN

BYPASR

DGND

38

C141 C140

AGND

N106

M62446

SWOUT

37

36 C138 4.7u/16V

101 101

SROUT

35

C137 4.7u/16V

SLOUT

34 C136 4.7u/16V

COUT

33 C135 4.7u/16V

ROUT

32 C134 4.7u/16V

LOUT

AVSS

CL1

CL2

CR1

31

30

29

C133 4.7u/16V

C13147n

C130

4.7u/16V

28

27

A-6.8V

C132

47u/16V

BYPASL

LTRE

LBASS3

LBASS2

CR2

RTRE

RBASS3

C129

4.7u/16V

26

25

24

RBASS2

23

C128

822

C127

15n

LBASS1 RBASS1

22

C126

0.33u

C139

101

Figure 3.3.1.2 Volume circuit diagram

Note: when there is no output, firstly make sure whether signal input can be detected; if signal input can be correctly detected, it means that signal source conversion circuit has no problem, then make sure whether it is a certain channel has no output or all have no output; if all have no output, it is probably that power supply of certain part is abnormal, also it is mute signal that abnormal, etc. For

Cd4052 and Cd4053 belong to the electronic switch with high conversion frequency, they are easy to be damaged; after being damaged, +6.8V and -6.8V voltage may probably be pulled down, or gating signal

A, B of 62446 will be pulled down, and then troubles, such as signal not detected and no output, will appear.

- 37 -

Instance 3 Symmtom: no output

Description: after power on, connect to 5.1CH, main channel has no output, central and surround have output, power board FL101, FL102 fuse is burnt down.

Analysis and troubleshooting: change fuse of FL101, FL102 and power on again. Fuse is burnt down, power off, test resistance to ground of power board Vc+, Vc- and find that resistance is 0 ohm; unplug power board flat cable holder XS8, shown as in the figure 3.3.1.3; test resistance to ground of power amplifier board Vc+, Vc-, it is also 0 ohm, the trouble lies in power amplifier board by primary judgment, test resistance in each pin of power amplifier board power tube V112, they are all 0 ohm, resistance in each pin of power tube is 0 ohm, V112 and V113 have been broken down, change V112,

V113, change fuse, output is normal after power on again, and trouble is removed.

C101

10u/16V

R104

47K

C103

47u/100V

R105

2K

R106

2K

R117

220/0.5W

R113

150

V132

2SC5248

V103

2N5551

R108

47

R109 1K

C108

33p/500V

V102

2N5551

C104

220p

R107 47

C105

100u/16V

V104

2N5551

C107

47u/100V

VD102

1N4148

R110

510 VD103

1N4148

R111 R114 2.7K

33K/0.5W

V106

2N5551

R115

1.2K

R112

1K

V105

2N5401

V107

2N5551

R116

150

C109

47n

R125

R121

33K

V133

2SA1964

220/0.5W

P+30V

P+30V

V112

2SD1047C

R128

R120

100/0.25W

4.3K

R126 R129

0.25/7W 2.7K

R122

100/0.25W

R127

0.25/7W

R130

4.3K

V113

2SB817C

P-30V

P-30V

C110

1u/16V

V114

2N5551

VD104

1N4148

Figure 3.3.1.3 Power amplifier output circuit diagram

Note: when a certain channel has no output, firstly confirm whether voltage of power amplifying circuit of each channel is normal. We often test stage by stage from the final stage of signal output and then analyse. Vibration exists in the course of moving machines, the line of PCB board of signal board will probably be broken off, or copper surface of element pin will fall off, so you should consider when analysing problems.

Instance 4 Symptom: microphone has no output

Description: insert microphone after power on, that MIC input has been detected displays, but microphone has no output.

Analysis and troubleshooting: after power on, insert microphone, microphone inputs sine wave signal, shown as in the figure 3.3.1.4; test base electrode of signal board triode V105, it is low level, MIC mute signal is normal, test signal board capacitor C245, C246, they both have no signal, test pin 7 of signal board N202, there is no signal, considering that MIC input can be detected, test signal board

- 38 -

Capacitor C219, there is signal, power supply voltage of N200 is normal, the trouble lies in N200

PT2315 by primary judgment; change PT2315 and trouble is removed.

XS12

MIC1

GND

GND

MIC-DET

3

4

1

2

CON4

P_MICDET

C200151

C217

R2075.1K

10u/16V

2

3

R20039K

-12V

N201A

4558

1

+12V

+12V

VD200

9.1V

R2132K

R204

100/0.25W

C208

100u/16V

C21910u/16V

C252

C211

47n

C23610P

R240220K

C20247u/16V

1

N200PT2315

REF CLK

2

VDD DATA

3

AGND DGND

C225

5.6n

C226

5.6n

4

5

TREBL

TREBR

LOUT

ROUT

6

RIN BOUT_R

7

8

9

NC BOUT_L

LOUD_L BIN_L

10

NC LIN

10u/16V

2

3

-12V

N202A

4558

1

VD201

R2091K

1N4148

C205

47u/16V

+12V

20

19

18

17

16

C221

10u/16V

15

C227

14

68n

C228

68n

13

12

11

P_SCL

P_DATA

R22010K

R216

5.6K

P_OKT

R241

47K

V200

9014

C237

103

V202

9014

R243

10K

Figure 3.3.1.4 MIC circuit diagram

Note: when changing PT2315, microphone still has no output sometimes. Considering that PT2315 and N101 24C02 of CPU board commonly use P_DATA and clock line P_SCL, when 24C02 is abnormal, the communication between CPU and PT2315 may probably be affected to cause no output for microphone, so 24C02 is required to change sometimes.

Instance 5 Symptom: no sound output

Description: signal input may be detected after power on, but no signal output, no output when switching various sound sources.

Analysis and troubleshooting: after power on, VCD channel inputs sine wave signal, check power amplifier board Vc+, Vc- , Vs+ and Vs-, power supply is normal, test volume board capacitor C133.C134, there is signal, test pin 4 and 5 of volume board flat cable holder XS20, there is signal, so it is sure that volume board working is normal; test pin2 and 3 of signal board socket XS9, there is no signal, trouble lies in signal board by primary judgment; test power supply voltage +12V and -12V of pin 4 and 8 of

N100, normal, left channel output is normal after changing N100, right channel output is normal after changing N101, centre has no output when adjusting to Cyber logic state, test pin 3 of volume board flat cable holder XS20, there is signal, test pin 4 of signal board socket XS9, there is no signal, test N102, power supply is normal, change N102 and output is normal, so trouble is removed.

Note: because of unstable voltage, 4558 of some part will be burnt down, +12V, -12V is pulled down, then whole system working is abnormal, so several 4558 are required to change sometimes.

- 39 -

Instance 6 Symptom: no OSD (on screen display)

Description: after power on, relay attracting, output signal is normal, LCD has no display, background light of display screen is lighted when pressing buttons.

Analysis and troubleshooting: because background light is bright, it is confirmed that +5V voltage of control panel is normal. When using remote controller, remote control function is normal, which means that control panel +3.3V is normal; change LCD screen, display is normal and trouble is removed.

Note: when no OSD appears, firstly make sure whether display screen voltage is normal, whether data buffer output is normal; because display screen is easy to damage, in most conditions, it is display screen that is damaged.

Instance 7 Symptom: power not on

Description: not any reaction after power on, relay not attracting, no OSD

Analysis and troubleshooting: power on and observe that each fuse is normal, secondary stage voltage of transformer is tested 0, primary stage voltage of transformer is tested normal, primary stage resistance is tested infinite, so it is judged that transformer has been burnt down; change transformer and trouble is removed.

Note: when power not on, firstly confirm that whether it is power not on or no OSD, whether part of voltage or all voltage is abnormal; if it is that power not on, test step by step from power socket until the trouble is found.

Instance 8 Symptom: remote controller has no function

Description: after power on, panel buttons have no function, remote controller has no function.

Analysis and troubleshooting: after power on, remote controller has no function, change its battery and it also has no function, test pin 3 P_REM signal of CPU board socket XP100, when remote controlling, this signal has no pulse waveform, test voltage of control panel resistor R102, it is +5V, when checking the welding point of N100 remote control receiver, we found that pin has rosin joint, after adding tin, remote control is normal and trouble is removed.

Note: buttons function and remote control function are all fulfilled by infrared receiver, when buttons and remote control have no function, trouble may lie in remote control receiver.

Instance 9 Symptom: Microphone has no delay and echo

Description: after power on, insert microphone, set echo and delay in maximum, beat microphone and there is no echo and no delay.

Analysis and troubleshooting: test pin 7 of signal board N204, there is no signal, test power supply of N209 PT2399, it is normal; change PT2399, trouble is not removed; test resistance of signal board capacitor C242, C243, C238, we find that resistance of C243 only has 2.5K; change capacitor C243 and trouble is removed.

Note: no echo and delay for microphone is caused by abnormal working of Pt2399; one case is that

PT2399 is abnormal itself; the other is that PT2399 peripheral circuit has trouble. Porcelain capacitor in peripheral circuit is easy to damage.

- 40 -

3.3.2 Troubleshooting process

1. Symptom: Karaoke has no sound

Analysis: for this kind of trouble, you may usually adopt signal injection method to check stage by stage. If a certain stage does not give out disturbance sound, this stage has problem; this method is generally preformed from back stage to front stage. Another is signal control method. Check stage by stage from front stage to back stage. If a certain stage has no sound, it means that this stage has trouble.

The troubleshooting process is shown as the following figure 3.3.2.1:

Karaoke has no sound

Check signal board

Check whether there is sound signal on

C252,C217

Y

Check whether there is sound on R219,

R221

Y

N

N

Check N210 and MIC hole circuit

Check PT2315 and CPU signal

P-SCCL, P-DATA

Check whether there is sound on R230

N

Check N202 and its power supply circuit

Y

Check whether there is sound on C245,

C246

Y

Check whether base electrode of V104,

V105 is

0.7AV

Y

N

N

Check N203 and its power supply circuit

Check whether V104 or

V105 is stricken through

Check whether E-electrode of V103 is high level

Y

N

Change V103

Whether

MICDET is high level; whether PKT is low level

N

CPU, MIC hole and V200 are damaged

Figure 3.3.2.1 Troubleshooting process for "Karaoke has no sound"

- 41 -

2. Troubleshooting process for “No spectrum display” is shown as the following figure 3.3.2.2;

No spectrum display

Whether

V105 collector electrode has high and low level variation

N

Y

2

Check CPU, I C bus

No spectrum display

N

Check power supply, V105 and peripheral circuit

Y

Check whether VD118 is normal

N

Change VD118

Y

Whether positive direction voltage of N102B has sawtooth waveform

Y

N

Check V103, V104, VD115,

VD116, C137

Whether negative direction voltage of N102B has sawtooth waveform

Y

N

Check N102 and peripheral circuit

Whether

N108 and CPU control pin working is normal

Y

Check 7-segment bandpass filter, C115 and the auto gain adjustment circuit composed by N105

N

Check control signal,

N108 and peripheral circuit

Figure 3.3.2.2 Troubleshooting flow chart for "No spectrum display"

- 42 -

3. Troubleshooting process for “Power-on protection” is shown as the following figure 3.3.2.3:

Power-on protection

Check whether there is central point voltage

Y

N

Check which channel outputs

DC and check this channel

Check whether protection is fulfilled when signal is added or main volume is increased

N

Check whether the currentprotection diode or triode is damaged, or capacitor C115 is not good

Y

Check whether power amplifier board resistor

R111, R141 has open-circuit

Y

N

Change resistor

Check whether resistor R108 has open circuit

Y

N

Change resistor

Check whether RLY detect signal is abnormal

Y

Whether it is machine vibration protection

Y

Change relay

N

Check whether power board

VD108 is low level, and change V100

Figure 3.3.2.3 Troubleshooting flow chart for "Power-on protection"

- 43 -

4. Troubleshooting process for “Cannot search automatically” is shown as the following figure

3.3.2.4:

Cannot search automatically

Whether

DISPLAY signal is sent to the negative direction terminal of N103A of

CPU board

Y

Check CPU board spectrum sampling and amplifying circuit N103, N108B of volume board

N

Whether the in-phase terminal of N103B is low level

N

Y

Check N103A amplifying and power supply circuit

Whether the in-phase terminal of N103B is low level

N

Y

Check V102 and peripheral circuit

Whether

VD103 is normal

Y

Change VD103

Y

Check VD101, CPU, V101 and peripheral circuit

Figure 3.3.2.4 Troubleshooting flow chart for "Cannot search automatically"

- 44 -

5. Troubleshooting process for “No output (2-channel)” is shown as the following figure 3.3.2.5:

No output (2-channel)

Check whether power supply of each channel is normal

N

Y

Refer to troubleshooting of "Power not on"

Check whether mute circuit signal is normal

N

Check whether MIC holder is normal and then check mute circuit

Y

Check whether power amplifier board XS8 has output

Y

Check whether voltage of power board R100 is normal

Y

Change relay

N

Check whether signal of

X20 is normal

Y

N

Change VD113

N

Check power supply of signal board N106

N

Y

Change N106

Check whether 12V voltage of signal board is normal

Y

Change signal board

N100, N101, N102

N

Check power supply circuit

Check power supply and change N106

Figure 3.3.2.5 Troubleshooting flow chart for "No output (2-channel)"

- 45 -

6. Troubleshooting process for “5.1CH has no output” is shown as the following figure 3.3.2.6:

5.1CH has no output

Change into 2CH and check whether it has output

Y

N

Refer to troubleshooting of "2CH has no output"

Check power supply of

N102, N103

Y

Change N102, N103

N

Check power supply circuit

Figure 3.3.2.6 Troubleshooting flow chart for "5.1CH has no output"

- 46 -

7. Troubleshooting process for “Left channel has no output” is shown as the following figure 3.3.2.7:

Left channel has no output

Check whether power amplifier board flat cable XS8 has output

Y

N

Check whether power amplifier board flat cable XS9 has waveform

N

Check whether signal board

X200 is normal

N

Check whether power board R113 has output

Y

Change relay

Y

Y

Check whether C101 has waveform

Y

Check power supply of signal board N100

N

Y

Change N100

Check

R125, R127 power supply

N

Y

Check whether R121 has DC voltage; check triode of amplification part of this channel and then change it

Check power supply circuit

Check waveform of volume board C122

Y

Check power supply of N106

N

Check power supply circuit

Y

Change N106

Check power circuit

Figure 3.3.2.7 Troubleshooting flow chart for "Left channel has no output"

- 47 -

8. Troubleshooting process for “Power not on” is shown as the following figure 3.3.2.8:

Power not on

Check whether each protector tube is normal

Y

Check whether voltage of power board XP8VC+ and VC- is normal ( 4.35V); whether 20 of power amplifier board is normal; whether

+5V of signal board is normal

N

Check whether AC output of each sublevel of transformer is normal

N

N

Check whether each channel power is short-circuited to ground

Y

Check the voltage regulation capacitor of short-circuited power

N

Check the load circuit of this channel power

N Change the burnt-out protector tube

Change transformer

Figure 3.3.2.8 Troubleshooting flow chart for :Power not on"

- 48 -

Section Four Servicing Parameters

3.4.1 Signal waveform diagram

This section collects signal waveform diagram of audio, video and each unit circuit with the purpose of helping servicing personnel to judge where the trouble lies accurately and quickly to promote their servicing skills. Because of the difference of oscillograph brand, model and tuning, the servicing personnel should pay more attention to check in daily work for some difference may exist.

1. Input signal (2-channel input) waveform diagram:

2. Volume board capacitor C122 (L) waveform diagram:

- 49 -

3. Volume board capacitor C121 R waveform diagram:

4. Volume board capacitor C120 C waveform diagram:

5. Volume board capacitor C119 (SL) waveform diagram:

- 50 -

6. Volume board capacitor C118 (SR) waveform diagram:

7. Volume board capacitor C117 (SW) waveform diagram:

8. Waveform diagram of outputting C133 (L) after volume adjustment:

- 51 -

9. Waveform diagram of outputting C134 R after vvolume adjustment:

10.C135

C waveform diagram in Cyber Logic state:

11. C136 (SL) waveform diagram in Cyber Logic state:

- 52 -

12. C137 (SR) waveform diagram in Cyber Logic state:

13. Output to flat cable XS8 after power amplification, pin 1 (L) waveform diagram:

14. Output to flat cable holder Xs8 after power amplification, pin 2 R waveform diagram:

- 53 -

15. Output to flat cable holder XS8 after power amplification, pin 3 C waveform diagram:

16. Output to flat cable holder XS8 after power amplification, pin 4 (SL) waveform diagram:

17. Output to flat cable holder XS8 after power amplification, pin 5 (SR) waveform diagram:

- 54 -

18. P_CHARGE waveform diagram after signal being detected:

19. P_ADINTO waveform diagram after signal being detected:

Note: C138 (SW) has waveform only when bass enhancer is in off state.

- 55 -

3.4.2 Key point voltage

1. Power board:

VC+=43.5V

VC-=-43.5V

VD113 cathode terminal 12.8V (19.3V when in standby)

Vd111 cathode terminal 6.3V (DV when in standby)

P-RC=0V (4.8V when in standby)

2. Power amplifier board:

L7812 pin 3 +12V

TDA7265 pin 3 +20V

over 5.3V (0V when in standby)

L7912 pin 2 12V

Pin 6 20V

S-MVTE 0V (19.5V when in mute)

3. CPU board:

When in standby: V103 pin 5 2.0V (0.1V after signal being detected)

VD101 cathode terminal 3.45V (0.6V after signal being detected)

R175 (P_CHARGE) 0.65V (waveform after signal being detected)

R179 (P_ADINTO) 5.0V (waveform after signal being detected)

- 56 -

Section Five Function Introduction to IC

3.5.1 function introduction to 4558

1. Description

The RC4558 and RM4558 devices are dual general-purpose operational amplifiers with each half electrically similar to the

A741 except that offset null capability is not provided.

The high common-mode input voltage range and the absence of latch-up make these amplifiers ideal for voltage-follower applications. The devices are short-circuit protected and the internal frequency compensation ensures stability without external components.

The RC4558 is characterized for operation from 0

C to 70

C, and the RM4558 is characterized for operation over the full military temperature range of –55 C to 125 C.

2. FEATURES

◆ Continuous-Short-Circuit Protection

◆ Wide Common-Mode and Differential

◆ Voltage Ranges

◆ No Frequency Compensation Required

◆ Low Power Consumption

◆ No Latch-Up

◆ Unity-Gain Bandwidth . . . 3 MHz Typ

◆ Gain and Phase Match Between Amplifiers

◆ Designed To Be Interchangeable With

◆ Raytheon RC4558 and RM4558 Devices

3. PIN CONFIGURATION

PIN No. Symbol

1

2

3

1OUT

1IN–

1IN+

I/O

O

I

I

Description

Output 1

Inverting Input Pin 1

Non-Inverting Input Pin 1

- 57 -

5

6

7

3

4

1

2

PIN No. Symbol I/O

Description

4 VCC– I

Negative Power Supply

5 2IN+ I

Non-Inverting Input Pin 2

6 2IN– I

Inverting Input Pin 2

7 2OUT O

Output 2

8 VCC+ I

Positive Power Supply

3.5.2 function introduction to PT2399

1. DESCRIPTION

PT2399 is an echo audio processor IC utilizing CMOS Technology which is equipped with ADC and DAC, high sampling frequency and an internal memory of 44K digital processing is used to generate the delay time, it also feature an internal VCO circuit in the system clock, thereby , making the frequency easily adjustable.

PT2399 boast of very low distortion (THD<0.5%) and very low noise (No<-90dBV), thus producing high quality audio output .The pin assignments and application circuit are optimized for easy PCB layout and cost saving advantage.

2. FEATURES

CMOS Technology

Least External component

Auto Reset Function

Low Noise, No<-90dBV Typical

Low Distortion, THD<0.5% Typical

External Adjustable VCO

Available in 16 pins DIP or SOP package

3. PIN CONFIGURATION

PIN No. Symbol I/O Description

VCC

REF

AGND

DGND

CLK_O

VCO

CC1

O

O

O

I

I

I

I

Positive Power Supply

Reference Power Supply

Simulative Ground

Digital Ground

NC

Voltage Controlled Oscillator

External capacitor

- 58 -

7

8

5

6

3

4

1

2

9

10

11

12

13

PIN No.

8

9

10

11

12

13

14

15

Symbol

CC0

OP1-OUT

OP1-IN

OP2-OUT

OP2-IN

LPF2-IN

LPF2-OUT

LPF1-OUT

O

I

I

O

O

I/O

O

O

I

Description

External capacitor

External capacitor 1 output

External capacitor 1 input

External capacitor 2 output

External capacitor 2 input

Low pass filter 2 input

Low pass filter 2 output

Low pass filter 1 input

16 LPF1-IN I Low pass filter 1 output

3.5.3 function introduction to CD4051

1. DESCRIPTION

The CD4051 is a single 8-channel multiplexer with three binary control inputs and inhibit input.

The three binary control input signals select 1 of 8 channels to be turned on and connect it to the single out.

The operating voltage is as 3 to 18V and quiescent current is as low as 5 µA max. (at Vpp=5V ).

2. PIN CONFIGURATION

PIN No. Symbol I/O Description

X5

INH

VEE

GND

X4

X6

X

X7

C

B

A

X3

X0

I/O

I

I/O

I

I/O

I/O

I/O

I/O

I

I

I

I/O

I/O

Channel selection port 4

Channel selection port 6

Channel selection output

Channel selection port 7

Channel selection port 5

Inhibit

Negative Power Supply

GND

Channel selection binary bit C

Channel selection binary bit B

Channel selection binary bit A

Channel selection port

Channel selection port 0

- 59 -

PIN No.

14

15

16

Symbol

X1

X2

VCC

I/O

I/O

I/O

I

Channel selection port 1

Channel selection port 2

Positive Power Supply

Description

3. TRUTH TABLE

INH

0

0

0

0

0

0

0

0

1

1

0

1

1

0

0

C

0

0

1

1

0

1

0

1

B

0

1

0

1

0

1

1

0

A

0

ON SWITH

X0

X1

X2

X3

X4

X5

X6

X7

1 X X X NONE

3.5.4 function introduction to CD4052

1. DESCRIPTION

The CD4052 is a dual 4-channel multiplexer with two binary control inputs and inhibit input.

The two binary control input signals select 1 of 4 pairs of channels to be turned on and connect it to the two outputs.

The operating voltage is as 3 to 18V and quiescent current is as low as 5 µA max. (at Vpp=5V ).

2. PIN CONFIGURATION

PIN No Symbol I/O Description

1 Y0 I/O Y channel selection port 0

2 Y2 I/O Y channel selection port 2

3

4

5

6

7

Y

Y3

Y1

INH

VEE

I/O

I/O

I/O

I

I/O

Y channel selection output

Y channel selection port 3

Y channel selection port 1

Inhibit

Negative Power Supply

- 60 -

PIN No

8

9

10

11

12

13

14

15

Symbol

GND

A

B

X3

X0

X

X1

X2

I

I/O

I/O

I/O

I/O

I/O

I

I

I

Description

GND

Channel selection binary bit A

Channel selection binary bit B

X channel selection port 3

X channel selection port 0

X channel selection output

X channel selection port 1

X channel selection port 2

16

3. TRUTH TABLE

INH

VCC

0

0

0

0 0

1

B

0

1

I

1

0

A

0

1

Positive Power Supply

X0

X1

X2

X3

ON SWITH

Y0

Y1

Y2

Y3

1 X X NONE

3.5.5 function introduction to CD4053

1. DESCRIPTION

The CD4053 is a triple 2-channel multiplexer having three separate digital control inputs, A, B, and C and an inhibit input. Each control input selects one of a pair of channels which are connected in a single-pole double-throw configuration

The three binary control input signals select 1 of 2 pairs of channels to be turned on and connect it to the three outputs.

2. Features

The operating voltage is as 3 to 18V and quiescent current is as low as 5 µA max. (at Vpp=5V ).

3. PIN CONFIGURATION

PIN No. Symbol I/O Description

1

2 by bx

I

I

Y1

Y0

- 61 -

14

15

16

10

11

12

13

8

9

6

7

PIN No.

3

4

5

B

A ax ay a b

Vdd

Symbol cy c cx

INH

Vee

Vss

C

O

O

I

I

I

I

I

I

I

I

I

I/O

I

O

I

Description

Z1

Z

Z0

Enable

Negative Power Supply

GND

Select C

Select B

Select A

X0

X1

X

Y

Positive Power Supply

4. TRUTH TABLE

INH

0

0

0

0 0

1

B

0

1

1

0

A

0

1

X0

X1

X2

X3

ON SWITH

Y0

Y1

Y2

Y3

1 X X NONE

3.5.6 function introduction to SM79164

1. Description

The SM79164 series product is an 8 - bit single chip microcontroller with 64KB on-chip flash and 4K byte

RAM embedded. It is a derivative of the 8052 micro controller family. It has 8-channel PWM build-in. User can cost effective controller for those applications which demand up to 32 I/O pins for PDIP package or up to 36

I/O pins for PLCC/QFP package, or applications which need up to 64K byte flash memory for program data.

To program the on-chip flash memory, a commercial writer is available to do it in parallel programming method.

- 62 -

2. Features

◆ 2.4V ~ 3.0V For V Version

◆ Working voltage: 3.0V ~ 3.6V For L Version

◆ 4.5V ~ 5.5V For C Version

◆ General 8052 family compatible

◆ 12 clocks per machine cycle

◆ 64K byte on chip program flash

◆ 4096 byte on-chip data RAM

◆ Three 16 bit Timers/Counters

◆ One Watch Dog Timer

◆ Four 8-bit I/O ports for PDIP package

◆ Four 8-bit I/O ports + one 4-bit I/O ports for PLCC or QFP package

◆ Full duplex serial channel

◆ Bit operation instruction

◆ Industrial Level

◆ 8-bit Unsigned Division

◆ 8-bit Unsigned Multiply

◆ BCD arithmetic

◆ Direct Addressing

◆ Indirect Addressing

◆ Nested Interrupt

◆ Two priority level interrupt

◆ A serial I/O port

◆ Power save modes: Idle mode and Power down mode

◆ Code protection function

◆ Low EMI (inhibit ALE)

◆ Bank mapping direct addressing mode for access on-chip RAM

◆ 8 channel PWM function with P1.0 ~ P1.7

3. PIN CONFIGURATION

DIP Symbol I/O

3

4

5

1 P1.0/T2

2 P1.1/T2

P1.2

P1.3

P1.4

O

O

I

O

O

Define Name

P_RST

P_RS

P_MICDET

P_E

P_ADSELA

Function

Liquid crystal reset

Liquid crystal data

Microphone detecting input

Liquid crystal read control bit

Selection spectrum sampling control A

- 63 -

P0.7

P0. 6

P0.5

P0.4

P0.3

P0.2

P2.0

P2.1

P2.2

P2.3

P2.4

P2.5

P2.6

P2.7

/PSEN

ALE

/EA/Vpp

P3.3

P3.4

P3.5

P3.6

P3.7

XTAL2

XTAL1

GND

Symbol

P1.5

P1.6

P1.7

RST

P3.0

P3.1

P3.2

32

33

34

35

36

37

25

26

27

28

29

30

31

21

22

23

24

17

18

19

20

13

14

15

16

9

10

11

12

DIP

6

7

8

O

O

O

O

O

O

O

O

I

O

I

I

I

O

O

O

O

I

I

O

O

I

I

I

O

I

I

I

O

I/O

O

O

O

P_SDA

P_SCL

P_LT62446

P_LT4094

P_SCART

P_CLK

P_ RLY

P_GNA

Vpp

P_D7

P_D6

P_D5

P_D4

P_D3

P_D2

Define Name

P_ADSELB

P_ADSELC

P_GNB

RESET

P_GNC

P_SELECT

P_ADINT0

P_REM

P_CHARGE

P_DIST

P_SEARCH

P_OKT

Crystal out

Crystal in

GND

Function

Selection spectrum sampling control B

Selection spectrum sampling control C

Spectrum gain control B

System reset

Selection spectrum sampling control C

Mute/input detecting selection

Spectrum sampling interruption

Remote control detecting

Spectrum sampling discharge control

Distortion detecting

Mute/input detecting

OK sampling

Crystal out

Crystal in

GND

I2C data line

I2C clock line

LT62446 latched

LT4094 latched

SCART detecting

Click line

Relay state input

Selection spectrum sampling control A

Blank

Blank

+5V pull up

Liquid crystal data D7 bit

Liquid crystal data D6 bit

Liquid crystal data D5 bit

Liquid crystal data D4 bit

Liquid crystal data D3 bit

Liquid crystal data D2 bit

- 64 -

7

8

5

6

1

2

3

4

DIP

38

39

Symbol

P0.1

P0.0

I/O

O

O

Define Name

P_D1

P_D0

Function

Liquid crystal data D1 bit

Liquid crystal data D0 bit

40 Vcc I Vcc Vcc

3.5.7 function introduction to PT2308

1. DESCRIPTION

PT2308L is a Class AB stereo headphone driver chip utilizing CMOS Technology specially designed for portable digital au

dio applications. It is housed in an 8-pin DIP or SO package and is functionally compatible with TDA1308. Pin assignments and application circuit are optimized for lower cost effectiveness and easy PCB Layout

2. FEATURES

◆ CMOS Technology

◆ Low Power Consumption

◆ Wide Temperature Range

◆ Excellent Power Supply Ripple Rejection

◆ High Signal-to-Noise Ratio, S/N=110dB

◆ Low Harmonic Distortion, THD= 0.001%

◆ Large Output Voltage Swing

◆ Low Supply Voltage Available (VDD=2V)

3. PIN DESCRIPTION

PIN No. Symbol I/O Description

OUT1

IN1-

IN1+

Vss

IN2-

IN2+

OUT2

Vdd

O

I

I

I

I

I

O

I

Output Pin R

Inverting Input Pin R

Non-Inverting Input Pin R

Negative Power Supply

Inverting Input Pin L

Non-Inverting Input Pin L

Output Pin L

Positive Power Supply

- 65 -

13

14

15

16

9

10

11

12

17

18

19

7

8

5

6

3

4

1

2

3.5.8 function introduction to PT2222

1. DESCRIPTION

The PT2222is remote control transmitters utilizing CMOS Technology specially designed for use on infrared remote control applications .It is pin-to-pin compatible with NEC µPD6122 respectively. PT2222 is housed in 24 pins so and capable of controlling 64 function kens and 3 double keys. PT2222 may be paired with PT2225to construct a powerful remote control system.

2. FEATURES

◆ CMOS Technology

◆ Low Power Consumption (Vdd=2.0~5.5V)

◆ Pin-to-Pin Consumption with µPD6122

◆ Using SEL pin, PT2222can support 128+6 function codes

◆ Customer Code can be selected (please contact PTC for details)

3. PIN DESCRIPTION

PIN No. Symbol I/O Description

O

O

O

I

I

I

O

O

O

O

O

I

I

I

I

I

I

I

SEL

OSCO

OSCI

VSS

LMP

KI/O7

KI/O6

KI/O5

K16

K17

REM

VDD

K12

K13

K14

K15

KI/O4

KI/O3

KI/O2

Nc

Nc

Nc

Nc

Nc

Nc

Serial data output

Positive Power Supply

GND

Crystal out

Crystal in

VSS

Emission output indication

Keyboard matrix line control

Keyboard matrix line control

Keyboard matrix line control

Keyboard matrix line control

Keyboard matrix line control

Keyboard matrix line control

- 66 -

PIN No.

20

21

22

23

Symbol

KI/O1

KI/O0

CCS

K10

I/O

O

I

I

Description

Keyboard matrix line control

Keyboard matrix line control

Address code control

Keyboard matrix row control

24 K11 I Keyboard matrix row control

3.5.9 function introduction to LM1875

1. Description

The LM1875 is a monolithic power amplifier offering very low distortion and high quality performance for consumer audio applications.

The LM1875 delivers 20 watts into a 4

?

? load on ±25V supplies. Using an 8

?

±30V supplies, over 30 watts of power may be delivered. The amplifier is designed to operate with a minimum of external components. Device overload protection consists of both internal current limit and thermal shutdown.

The LM1875 design takes advantage of advanced circuit techniques and processing to achieve extremely low distortion levels even at high output power levels. Other outstanding features include high gain, fast slew rate and a wide power bandwidth, large output voltage swing, high current capability, and a very wide supply range. The amplifier is internally compensated and stable for gains of 10 or greater.

2. Features

◆ Up to 30 watts output power

◆ AVO typically 90 dB

◆ Low distortion: 0.015%, 1 kHz, 20 W

◆ Wide power bandwidth: 70 kHz

◆ Protection for AC and DC short circuits to ground

◆ Thermal protection with parole circuit

◆ High current capability: 4A

◆ Wide supply range 16V-60V

◆ Internal output protection diodes

◆ 94 dB ripple rejection

◆ Plastic power package TO-220

3. PIN DESCRIPTION

PIN No. Symbol I/O Description

1 +IN I Non-Inverting Input Pin C

- 67 -

7

8

5

6

3

4

1

2

9

10

11

PIN No.

2

3

4

Symbol

-IN

-VEE

OUTPUT

I/O

I

I

O

Description

Inverting Input Pin C

Negative Power Supply

Signal out C

5 VCC I Positive Power Supply

3.5.10 function introduction to TDA7265

1. DESCRIPTION

The TDA7265 is class AB dual Audio power amplifier assembled in the Multiwatt package, specially designed for high quality sound application as Hi-Fi music centers and stereo TV sets.

2. Features

◆ WIDE SUPPLY VOLTAGE RANGE (UP TO 25V ABS MAX.)

◆ SPLIT SUPPLY

◆ HIGH OUTPUT POWER 25 + 25W @THD =10%, RL = 8 , V

S = +20V

◆ NO POPAT TURN-ON/OFF

◆ MUTE (POP FREE)

◆ STAND-BY FEATURE (LOW Iq)

◆ SHORT CIRCUIT PROTECTION

◆ THERMAL OVERLOAD PROTECTION

3. PIN DESCRIPTION

PIN No. Symbol I/O Description

-Vs

OUT1

+Vs

OUT2

MUTE

-Vs

IN2+

IN2-

GND

IN1+

IN1-

I

I

I

I

I

O

I

O

I

I

I

Negative Power Supply

Signal out SL

Positive Power Supply

Signal out SR

Mute control

Negative Power Supply

Non-Inverting Input Pin SR

Inverting Input Pin SR

GND

Non-Inverting Input Pin SL

Inverting Input Pin SL

- 68 -

3.5.11 function introduction to M62446

1. DESCRIPTION

The M62446FP is 6 channels electric volume controlled 3-wire serial data.

The IC is suitable for use in home-use audio systems and TV sets.

13

14

15

16

9

10

11

12

17

18

19

20

21

22

7

8

5

6

3

4

1

2

2. Features

◆ Electric volume: Volume level••••• 0dB ~ -79dB, - dB (1dB / step)

◆ Tone control: Bass / Treble, 0dB ~ ±10dB(2dB / step)

◆ 4 Output ports: Built-in microcomputer interface circuit controlled by 16-bit serial data.

3. PIN DESCRIPTION

PIN No. Symbol I/O Description

SLin

GNDC

Cin

GNDR

Rin

GNDL

Lin

BYPASSR

Out 4

Out3

Out2

Out1

AVdd

SWin

GNDS

SRin

BYPASSL

LTRE

LBASS3

LBASS2

LBASS1

RBASS1

Source select control 4

Source select control 3

Source select control 2

Source select control 1

Positive Power Supply

SW Input

SW GND

SR Input

SL Input

C GND

C Input

R GND

R Input

L GND

L Input

R bypass capacitance

L bypass capacitance

L treble capacitance

L bass capacitance

L bass capacitance

L bass capacitance

R bass capacitance

I

O

I

I

I

I

I

I

O

O

O

O

O

O

I

I

I

I

O

O

O

O

- 69 -

34

35

36

37

30

31

32

33

PIN No.

23

24

25

26

27

28

29

38

39

40

41

O

O

O

I

I

O

O

O

I

I

I

I

O

I

O

I

I/O

O

O

O

AVSS

Lout

Rout

Cout

SLout

SRout

SWout

AGND

Symbol

RBASS2

RBASS3

RTRE

CR2

CR1

CL2

CL1

DGND

LATCH

DATA

CLK

L out

R out

C out

SL out

SR out

SW out

AGND

DGND

R bass capacitance

R bass capacitance

R treble capacitance

R capacitance

R capacitance

L capacitance

L capacitance

Negative Power Supply

Select control

Serial Data input

Serial CLK input

Description

42 DVDD I Digital Power Supply

3.5.12 function introduction to AT24C02

1. Description

The AT24C02 provides 2048 bits of serial electrically erasable and programmable read-only memory

(EEPROM) organized as 256 words of 8 bits each. The device is optimized for use in many industrial and commercial applications where low-power and low-voltage operations are essential. The AT24C02 is available in space-saving 8-lead PDIP,

8-lead MAP, 8 lead TSSOP and 8-ball dBGA2 packages and is accessed via a 2-wire serial interface. In addition, the entire family is available in 2.7V (2.7V to 5.5V) and 1.8V (1.8V to 5.5V) versions.

2. Features

◆ Low-voltage and Standard-voltage Operation

– 2.7 (VCC = 2.7V to 5.5V)

- 70 -

– 1.8 (VCC = 1.8V to 5.5V)

◆ Internally Organized, 256 x 8 (2K),

◆ 2-wire Serial Interface

◆ Schmitt Trigger, Filtered Inputs for Noise Suppression

◆ Bi-directional Data Transfer Protocol

◆ 100 kHz (1.8V) and 400 kHz (2.5V, 2.7V, 5V) Compatibility

◆ Write Protect Pin for Hardware Data Protection

◆ 8-byte Page (1K, 2K), Write Modes

◆ Partial Page Writes are Allowed

◆ Self-timed Write Cycle (5 ms max)

◆ High-reliability

– Endurance: 1 Million Write Cycles

– Data Retention: 100 Years

◆ Automotive Grade, Extended Temperature and Lead-Free Devices Available

◆ 8-lead PDIP, 8-lead JEDEC SOIC, 8-lead MAP, 5-lead SOT23,

8-lead TSSOP and 8-ball dBGA2™ Packages

3. PIN DESCRIPTION

PIN No. Symbol

5

6

7

3

4

1

2

A0

A1

A2

VSS

SDA

SCL

TEST

I

I/O

I/O

I/O

I/O

I

I

I

Description

To Ground

To Ground

To Ground

To Ground

Serial Data input

Serial SCL input

Test port

8 VDD I Positive Power Supply

3.5.13 function introduction to L7805

1. Description

LM7805 is 5V voltage regulator, locates on power board in this player and is used to generate 5V stable voltage.

2. Features

- 71 -

◆ Internal thermal overload protection

◆ Internal short circuit current limiting

◆ Output current in excess of 1 A

◆ Metal Fin is fully covered with Mold Resin

3. PIN DESCRIPTION

PIN No.

1

2

Symbol

Input

Common

I/O

I

I

Description

Input +18V

Ground

3 Output O Output +12V

3.5.14 function introduction to 7812

1. Description

LM7812 is +12V voltage regulator, locates on power board in this player and is used to generate +12 stable voltage.

2. Features

◆ Internal thermal overload protection

◆ Internal short circuit current limiting

◆ Output current in excess of 1 A

◆ Metal Fin is fully covered with Mold Resin

3. PIN DESCRIPTION

PIN No.

1

2

Symbol

Input

Common

I/O

I

I

Description

Input +18V

Ground

3 Output O Output +12V

3.5.15 function introduction to 7912

1. Description

LM7812 is +12V voltage regulator, locates on power board in this player and is used to generate +12 stable voltage.

- 72 -

2. Features

◆ Internal thermal overload protection

◆ Internal short circuit current limiting

◆ Output current in excess of 1 A

◆ Metal Fin is fully covered with Mold Resin

3. PIN DESCRIPTION

PIN No. Symbol

1

2

Input

Output

I/O

I

O

Description

Input -18V

Output -12V

3 Common I Ground

3.5.16 function introduction to LM324

1. Description

The LM124 series consists of four independent, high gain, internally frequency compensated operational amplifiers which were designed specifically to operate from a single power supply over a wide range of voltages. Operation from split power supplies is also possible and the low power supply current drain is independent of the magnitude of the power supply voltage.

Application areas include transducer amplifiers, DC gain blocks and all the conventional op amp circuits which now can be more easily implemented in single power supply systems. For example, the LM124 series can be directly operated off of the standard a 5 V power supply voltage which is used in digital systems and will easily provide the required interface electronics without requiring the additional g15V power supplies.

2. Features

◆ Internally frequency compensated for unity gain

◆ Large DC voltage gain 100 dB

◆ Wide bandwidth (unity gain) 1 MHz (temperature compensated)

◆ Wide power supply range: Single supply 3V to 32V or dual supplies ±1.5V to ±16V

◆  Very low supply current drain (700 µA)–essentially independent of supply voltage

◆  Low input biasing current 45 n A (temperature compensated)

◆  Low input offset voltage 2 mV and offset current 5 n A

◆  Input common-mode voltage range includes ground

◆  Differential input voltage range equal to the power supply voltage

◆  Large output voltage swing 0V to ±1.5V

- 73 -

3. PIN DESCRIPTION

PIN No. Symbol

7

8

5

6

3

4

1

2

9

10

11

12

13

Output 1

Input 1-

Input 1+

V +

Input 2+

Input 2-

Output 2

Output 3

Input 3-

Input 3+

GND

Input 4+

Input 4-

I

I

O

I

I

I

I

O

I

I

I/O

O

I

I

Description

Output 1 Pin

Inverting Input Pin

Non-Inverting Input Pin

Positive Power Supply

Non-Inverting Input Pin

Inverting Input Pin

Output 2 Pin

Output 3 Pin

Inverting Input Pin

Non-Inverting Input Pin

GND

Non-Inverting Input Pin

Inverting Input Pin

14 Output 4 O Output 4 Pin

3.5.17 function introduction to PT2315

1. Description

PT2315 is a two-channel digital audio processor utilizing CMOS Technology . Volume, Bass, Treble and balance controls are incorporated into a single chip. Loudness Function is also provided to build a highly effective electronic audio processor having the highest performance and reliability with the least external components. All functions are programmable using the IIC Bus. The pin assignments and application circuit are optimized for easy PCB layout and cost saving advantage for audio application. Housed in a 20-pin

DIP/SO Package, PT2315is pin-to-pin compatible with TDA7315 and is very similar in performance with performance with the later.

2. Features

◆ CMOS Technology

◆ Least External Components

◆ Treble and Bass Control

◆ Loudness Function

◆ Input/Output External Noise Reduction System/Equalizer

◆ 2 Independent Speaker Controls for Balance Function

- 74 -

◆ Independent Mute Function

◆ Volume Control in 1.25 dB/step

◆ Low Distortion

◆ Low Noise and DC Stepping

◆ Controlled by IIC BUS Micro-Processor Interface

◆ Pin-to-Pin Compatible with TDA7315

3. PIN DESCRIPTION

PIN No. Symbol

13

14

15

16

17

18

19

9

10

11

12

7

8

5

6

3

4

1

2

LOUD_L

NC

LIN

BIN_L

BOUT_L

BIN_R

BOUT_R

ROUT

LOUT

DGND

DATA

REF

VDD

AGND

TREB_L

TREB_R

RIN

LOUD_R

NC

I

O

I

O

I

O

O

O

I

I

O

O

I

O

I/O

O

I

I

Reference Power Supply

Description

Power Supply

AGND

L treble adjust capacitance

R treble adjust capacitance

R input

R Loud adjust

NC

R Loud adjust

NC

L input

L adjust capacitance input

L adjust capacitance output

R adjust capacitance input

R adjust capacitance output

R output

L output

DGND

Serial Data input

20 CLK I Serial CLK input

3.5.18 function introduction to 74VHC245

1. Description

The VHC245 is an advanced high speed CMOS octal bus transceiver fabricated with silicon gate CMOS technology. It achieves high-speed operation similar to equivalent Bipolar Schottky TTL while maintaining the

- 75 -

CMOS low power dissipation. The VHC245 is intended for bi-directional asynchronous communication between data busses. The direction of data transmission is determined by the level of the T/R input. The enable input can be used to disable the device so that the busses are effectively isolated. All inputs are equipped with protection circuits against static discharge.

2. Features

◆ High Speed: Tpd= 4.0 ns (typ) at Vcc= 5V

◆ High Noise Immunity: Vnih= Vnil = 28% Vcc (Min)

◆ Power Down Protection is provided on all inputs

◆ Low Noise: Volp= 0.9V (typ)

◆ Low Power Dissipation:

◆ Icc= 4 µA (Max) @ TA= 25qC

◆ Pin and Function Compatible with 74HC245

3. Truth table

Inputs

Outputs

-OE T/–R

L

L

L

H

Bus B Data to Bus A

Bus A Data to Bus B

H X HIGH-Z State

H= HIGH Voltage Level L= LOW Voltage Level X= Immaterial Any unused bus terminals during HIGH-Z

State must be held HIGH or LOW.

4. PIN DESCRIPTION

PIN No. Symbol I/O Description

Transmit/Receive Input

3

4

1

2

5

6

T/–R

A0

A1

A2

A3

A4

I

I/O

I/O

I/O

I/O

I/O

Side B Inputs or 3-STATE Outputs

7

8

9

10

A5

A6

A7

Nc

I/O

I/O

I/O

- 76 -

PIN No.

11

12

Symbol

B7

B6

I/O

I/O

I/O

Description

17

18

19

13

14

15

16

B5

B4

B3

B2

B1

B0

-OE

I/O

I/O

I/O

I/O

I/O

I/O

I

Side B Inputs or 3-STATE Outputs

Output Enable Input

20 Vcc I Power Supply

3.5.19 function introduction to CD4094

1. Description

The CD4094BC consists of an 8-bit shift register and a 3-STATE 8-bit latch. Data is shifted serially through the shift register on the positive transition of the clock. The output of the last stage (QS) can be used to cascade several devices. Data on the QS output is transferred to a second output, Q′S, on the following negative clock edge.

The output of each stage of the shift register feeds a latch, which latches data on the negative edge of the

STROBE input. When STROBE is HIGH, data propagates through the latch to 3-STATE output gates. These gates are enabled when OUTPUT ENABLE is taken HIGH.

2. Features

◆ Wide supply voltage range: 3.0V to 18V

◆ High noise immunity: 0.45 VDD (typ.)

◆ Low power TTL compatibility: Fan out of 2 driving 74L or 1 driving 74LS 3-STATE outputs

3. PIN DESCRIPTION

PIN No. Symbol I/O Description

3

4

1

2

5

6

STROBE

DATA

CLOCK

Q1

Q2

Q3

I

O

I

I

O

O

Store control

Serial data

Serial clock

Bit 1 output

Bit 2 output

Bit 3 output

- 77 -

PIN No.

7

8

9

10

11

12

13

14

15

16

Symbol

Q4

Vss

Qs

Qs’

Q8

Q7

Q6

Q5

Output enable

Vdd

O

O

O

O

I/O

O

I

O

O

I

I

Description

Bit 4 output

GND

Top Bit output

Non-Qs

Bit 8 output

Bit 7 output

Bit 6 output

Bit 5 output

Output enable

Positive Power Supply

- 78 -

Chapter Four Disassembly and Assembly Process

In order to know the structure of audio power amplifier AV225T easily, visibly and quickly, now each key link of the disassembly and assembly process of the player is presented in means of pictures to prevent users from incorrect operating and damaging elements. This player is composed by control panel components, power amplifier board components, signal board components, volume board components, power board components and MIC board components. So please operate according to illustration strictly.

1. Disassembly and assembly process for the unit

(1) Use electric screwdriver to unfix screws in the joint place of upper cover and rear cover.

(2) Use electric screwdriver to unfix left and right hand

side upper cover screws A , B and C.

(3) Take down upper casing.

- 79 -

(4) Pull down tuner flat cable A and video flat cable B.

(5) Use electric screwdriver to unfix screws A and B in the

joint position of tuner and rear cover, and then unfix

screws C and D in the joint position of video board and

rear cover, then take them down.

(6) Pull down flat cable A, B and C on volume board.

B C

A

B

(7) Use electric screwdriver to unfix screws A~E and screws

A, B in the joint position of volume board and rear cover,

and then take down volume board.

(8) Pull down flat cable A E on signal board.

(9) Use electric screwdriver to unfix screws A, B, C, D and E

in the joint position of signal board and rear cover, and

then take down signal board.

- 80 -

(10) Pull down flat cable A, B C and D on power amplifier

board.

(11) Use electric screwdriver to unfix screws A~D in the point position of bottom casing and power amplifier board heat radiator and screw E in the joint place

with rear cover.

(12) Use electric screwdriver to unfix screws A, B and C of

power amplifier board, and then take down power

amplifier board.

C

D

(13) Pull down flat cable A, B, C and D on power board.

(14) Use electric screwdriver to unfix screws A~D in the

joint place of rear cover and output terminal of power

amplifier output board (power board and power

amplifier output board are both in one).

(15) Use electric screwdriver to unfix screws A~D of power

board, and then take down power board.

- 81 -

(16) Use electric screwdriver to unfix screws on two sides

of panel.

(17) Use electric screwdriver or “+”-shaped screwdriver to

unfix screws A~E in the joint place of panel and

bottom casing.

(18) Take hold of panel by right hand, fasten the bottom

casing D with 4 fingers of left hand, hold the panel

button bracket C with thumb and exert strength

towards direction of arrow C until panel comes off from

bottom casing clasp B, then exert strength towards

direction of arrow C, left side panel falls off from

bottom casing, and then right hand panel clasp falls

off from bottom casing automatically.

(19) Use electric screwdriver to unfix screws of panel and

MIC board, and then take down PCB board.

2. Assembly process for whole unit

(20) PCB board has been taken away.

(1) Install panel, MIC board and use electric screwdriver to

fix screws.

- 82 -

(2) Take hold of panel components and exert strength

towards arrow direction (inward) until the clasp is f

astened.

(3) Use electric screwdriver to fix screws in two sides of

surface casing.

(4) Use electric screwdriver to fix screws A~E in the joint

place of surface casing and bottom casing.

C

D

(5) Install power board and then Use electric screwdriver to

fix screws A~D in the joint place of rear cover and output

terminal of power amplifying output board (power board

and power amplifying output board are both in one).

(6) Use electric screwdriver to fix screws of power board

and insert flat cable A D to proper position.

(7) Install power amplifier board, and use electric

screwdriver to fix screws A~D in the joint place of

bottom casing and power amplifier board heat radiator.

- 83 -

(8) Use electric screwdriver to fix screws A, B, C of power

amplifier board and then insert flat cable to proper

position.

(9) Install signal board and use electric screwdriver to fix

screw A of signal board.

(10) Use electric screwdriver to fix screws A, B, C, D of signal

board and then insert flat cable to proper position.

(11) Install volume board and use electric screwdriver to fix

screws A~D in the joint place of rear cover.

(12) Use electric screwdriver to fix screws A, B of volume

board and then insert flat cable to proper position.

(13) Take hold of tuner by left hand, use electric screwdriver

to fix screws A, B; take hold of video board by left hand,

use electric screwdriver to fix screws C, D; insert flat

cable respectively to proper position.

- 84 -

(14) Install upper cover, use electric screwdriver to

fix screws of left, back and right sides; power on and

test, and it is ok.

3. The process of changing LED back light source

(1) Use nail to enter the gap between LCD screen and upper

edge of LED back light source, and then exert strength

to put it up.

2 Take LCD screen with thumb and forefinger of left hand,

press the whole board by right hand, take hold of the

upper edge of LCD screen and exert strength towards

arrow direction (leftwards).

(3) After LCD screen falls off, take hold of forceps by right

hand to move away flat cable holder of LCD screen,

and the flat cable falls off automatically.

(4) Use brand iron to weld away pin A and B of LED back

light source.

(5) Press down LCD screen bracket clasp A, B with thumb

and forefinger of right hand, exert strength with thumb

towards direction of arrow A; after clasp A is away from

PCB board, press down towards direction of arrow C,

clasp A falls off and then clasp B falls off automatically.

- 85 -

(6) Separate LED back light source and LCD screen

bracket clasp.

4. Process of assembling LED back light source

(1) Install LCD screen bracket clasp.

(2) Install LED back light source.

(3) Use brand iron to solder pin A and B of LED back light

source.

(4) Take LCD screen flat cable between thumb and

forefinger of right hand, insert it into flat cable holder,

push up flat cable plug to proper position.

(5) Take hold of LCD screen by left hand and put down

towards arrow direction.

- 86 -

(6) Press the LCD screen tightly.

Chapter Cinque

PCB board & Circuit diagram

Section One PCB board

5.1.1 Video Board

XC101

TC103

TC101

R106

R107

R105 C101

TC104

N101

R103

R101

R102

C110T-2 2005.11.14

-12V

V-B

V-A

INH

DGND

+5V

XS101

- 87 -

5.1.2 Volume Board

XC101 XC102

XJ2

DVDL DVDR VCDL VCDR C

SW

SL SR L R

C105

R162

R161

C106

W7

N104

W14

N107

R150

C113

R157

R146

R148

W21

R149

N108

R170

C146

R169

C145

R168

R167

W38

W39

C107

W40

W41

W42

W43

C108

W8 W9

R132

W3

W2

N101

R130

W5

W10

R125

W11

R126

W59

W6

N102

C154 C152

XS19

C147

C112

W22

R196

C114

W35

W36

W37

R144

R147

R145

C138

C111

W15

W16

W17

W18

W19

W58

W23

C110

R143

R138

R137

R139

C109

N105

C117

W20

R140

R141

R142

W32

W33

W69

W34

R154

C119

R153

C121

N106

W13

W24

W28

R159

W12

R136

R124

R195

R133

N103

W70

W66

W29

W30

W31

C131

C125

C124

C123

R134

R135

W25

W26

W64

W68

W67

W27

R160

R158

C120 C118

C103

C101C102

XP101

W71

C104

-12V

B

A

INH

GND

D+5V

GND

TUNER_L

+12V

TUNER_R

GND

P_TDO

P_CLK

P_DATA

P_TCE

W44

C122

C137 C136 C142 C135 C134

C126 C127 C128

C133

C130 C129

VD100

VD101

R131

C149

R129

W57

W60

2110T-1

2006-01-17

XS20

XS22

- 88 -

5.1.3 Signal Board

XS23

~9V

GND

~9V

XS6

+12V

DGND

DGND

-12V

XS102

P_D0

P_D1

P_D2

P_D3

P_D4

P_D5

P_D6

P_D7

XS103

P_RST

P_RS

P_E

P_REM

LED

DGND

DGND

D+5V

XS12

MIC2

AGND

MIC1

MIC-T

C142

SRQ1

XS25

V109VD108 V110 V111

C130

+12V

-12V

P_REM

P_D0

P_D1

P_D2

P_D3

P_D4

P_D5

P_D6

P_D7

P_RST

P_RS

P_E

V202

W2

C129C134

VD106

R170

C128

R171

VD107

C203

N107

C204

W11

R209

C209 C210

R241

C205

VD201

C236

R240

C252

R106

W85

W84

R242

R244

R202

V200

C237

VD200

R213

R214

R217

W76

C229

C230

R204

C200

W38

R200

C222

C240

R246

C220

W46

W42

W12

W50

W56

W54

C231

R228

R216

C227

C228

V201 R210

C234

R211

R247

R220

R219

C221

C219

C201

N201

R201

R208

C226

C225

C208

C211

C202

W63

W80

W58

W57

W52

W64

W48

W33

W71

W55

XP20

P_RLY

DISP

DSIT

P_OKT

P_CLK

P_DATA

VD202

P _ L T 6 2 4 4 6

W1

P_LT4094

P_SCL

XP22

C206

C212

P_SDA

N C

C207

GND

D+5V

GND

GND

C239

R258

C213

OK-R

DISP

AGND

AGND

SW

L-1

R-1

C-1

SR-1

SL-1

W65

W70

C214

C217 C218

N210

VD206

W41

W18

R265

R275

VD205

C143

3215T-2 LLC

2005-06-15

V103

XS24

C119

R152

R139

R109

V102

C100

V107

R162

V100

XS13

V105

V104

N207

W45 C250

N209

C233

C232

R262

R257

R255

R256

R223

R218

W36 XS9

R230

R248

R238

N205

W16

W20

W14

VD104

VD103

VD102

VD100

VD101

R254

R260

R221

R224

R232

R225

C251

R226

W32

W23

C248

W37

C242

R249

C243

R268

R284

R264C235

C238

N204

W21

C247

W22

N203

R222

R267

R250

R231

N208

R145

R142

R113

R111

R112

R105

R104

W30

W29

C249

R229

R227

R266

R261

R269

R271

R272

R215

R259

R270

N211

W27

C132

R118

VD105

VD109

VD111

R252

W10

R251

W4

C124

R116

C125

W5

C122

C106

C121

R123

R110

W40

W39

C105

XC100

C131

C104

W6

R102

R140

N101

W3

R121

R122

R133

R128

C103

C113

C246

C108

R101

R137

N100

W13

R132

R120

R127

R124

C245

W7

C107

C101

C116

C118

R103

R108

R129

R134

X100

N102

R163

V108

R151

C115

R157

R169

C102

C144

C117

R154

V106

XJ2

C138

W43

XP19

C137

- 89 -

5.1.4 Power Board

XS2

SW

XS3

TRANS

C124 C125

XL100

C123

C121

V103 R107 V101 V102

R109

C120

C119

C115 C114 C113

W22

W13

C118

C116

R106

VD110

R108

C117

VD111

R120

R115

XL101

R114

R119

R118

R113

W9

R111

W4

R116

W15

R117

R112

L103

W11

W10

L101

L104

R122

L102

L100

W8

W7

Y100

R100

XP7

SWM

RLY0

P_RC

OVER

XP8

L2

R2

C2

SL2

SR2

VC+

GND

GND

VC-

XS4

- 90 -

5.1.5 Key Scan Board

O

V

G

2

8

1 7

2

8

1 7

- 91 -

5.1.6 MIC Board

C100

XJ1

XP12

MIC-DET

GND

GND

MIC1

R100

9215T-1

2004-08-09

XP24

C102

C105 C101

R104

R105

C104

R106

R101

W2

R102

R108

C106 R109R110

XJ2

MIC1

R107

C103

X100

- 92 -

5.1.7 audio power amplifying Board

W63

N

R128 C109

V106

R114

R115

R129

P

R130

W9

N

R158

V121

C119

R144

R145

R159

P

R160

W2

W14

W8

W61

C120

V129

R126

C110

V114

R113

C102

C103

W69

W57

W51

W48

W43

V103 V102

W47

XS7

R127

VD101

XP13

W67

R156

R157

XP9

2SA1964

R116 R146

C104

V104

W60

V115

C121 R102

VD102

VD103

V118 V117

C114

V119

XS8

V101V116R133

C107

C106 C101

W45 W46

C111 C112C113

W77

W78

W33

W59

R139

R151

T4225T-0

2006 02 22

C115

R134

VD105

VD106

C117

C116

C141

C142

N106

W22

C137

C135

W21

W73

C136

W3

C134

C157

W65 C132 W71

C131 C130C129

W36

W72

W1

W24

W37

C159

-12V GND+12V

W26

W18

W42

C149

C148

C123 C122

C125

W54

C145

C124

C151

SRQ1

C150

C139

C140

W74

VD112

VD114

VD111

VD113

W35

W20

C154

N102

7912

XS5

C144 C143

FL101 FL102

R184 R183

N101

7812

C146

C147

- 93 -

5.1.8 Surface layer of CPU Board

XP105

C113 R130

C116 R133 R134

N105

C120 R140

VD109

VD110

VD108

VD111

VD112

VD113

VD114

C135 R164 C134

C140

C114

R127R128R129R126

N104 C115

R144

R143 C122

R141

R146

R136

R151

R155

R160

R165

R158 R157

R142

R147

R137

R186

R156

R161

R166

C136

R125 R123 R122 R124

C139

VD119

VD117

R170

R169

C147

R172

R178

R177

N102

C102 R167 C148

R182 R180 R181 C152

XP101

DISP DSIT

C149R110

C109

C110

R115

R185 R184

VD118

VD115

C155 C142

C137

C138

VD116

VD102 VD103

VD101

R230 R229

R199 R187

N101

R111 R108 R109 R107

P_E

P_MT

P_RS

P_RST

P_D7

P_D6

P_D5

P_D4

P_D3

P_D2

P_D1

P_D0

P_REM

-12V

+12V

C100

C105 R101

C111

VD106

C141

R118 R119

VD107

XP100

RR100

R225 R224 R223 R222 R207 R208

R203 R204 R205

R217R216

C106

G100

C103 R209

- 94 -

5.1.9 Bottom layer of CPU Board

- 95 -

VCD

DVD

VOUT

XC101

1

2

3

4

5

6

AV3

R101 100

R102 100

R107 10k

R108 22

R109 1

VCD

DVD

TC103

220u/16V

VOUT

V101

A1015

+5V

R105

100

TC101

R106

22K

100u/16V

13

14

15

12

1

5

2

4

X2

X3

X4

X5

X6

X7

N101 CD4051

X0 XCOM

X1

VDD

VSS

INH

VEE

A(0)

B(1)

C(2)

3

16

8

6

7

11

10

9

C102

103

+5V

R103 22

R104 100

DGND

INH

V-A

V-B

-12V

XS101

3

4

1

2

5

6

CON6

C103

103

+5V

C101

103

TC104

220u/16V

TUNER_L

VCD

XC101A

3

R

2

L

1

DVD

XC101B

R

6

5

L

4

R

L

XC102A

R

3

2

L

1

SR

XC102B

6

R

5

SL L

4

SW

XC102C

R

9

8

C L

7

TUNER_R

R130 1K

R132 47K

R152 47K

R197 1K

R111 1K

R112 47K

R113 47K

R114 1K

R115 1K

R116 47K

R117 47K

R118 1K

R119 1K

R120 47K

R121 47K

R122 1K

R103 1K

R104 47K

R105 47K

R106 1K

R107 1K

R108 47K

R109 47K

R110 1K

C150

103

C144

103

C149

103

C148

103

6

5

C105

221

N104B

4558

7

-12V

C107

47u/16V

2

3

C106

221

+12V

N104A

4558

C108

47u/16V

1

R124

1K

R125

1K

R137 56K

R138 56K

R139 100K

C109 101

R140 47K

R141 22K

R142 33K

B

A

VCD-R

DVD-R

5.1CH-R

VCD-L

DVD-L

5.1CH-L

1

5

2

4

6

12

14

15

11

B 9

A 10

N101

CD4052

X0

X1

X2

X3

Y0

Y1

Y2

Y3

INH

B

A

X

Y

VDD

VSS

VEE

13

3

16

A+6.8V

8

7

A-6.8V

SW

5.1CH

S-C

5.1CH-C

12

13

S-SR

5.1CH-SR

2

1

S-SL

5.1CH-SL

5

3

5.1CH

6

11

10

9

12

13

2

1

5

3

6

11

10

9

N103

CD4053

X0

X1

X

Y0

Y1

Y

Z0

Z1

Z

INH

A

B

C

VDD

Vss

VEE

N102

CD4053

X0

X1

Y0

Y1

X

Y

Z0

Z1

Z

INH

A

B

C

VDD

Vss

VEE

14

14

15

4

16

A+6.8V

8

7

A-6.8V

R134

150K

R135

150K

R136

150K

15

4

16

A+6.8V

8

7

A-6.8V

R133

150K

R126

1K

2

3

R195

56K

S-C

-12V

N105A

4558

1

C111

+12V

6

5

C110

R143

27K

101

N105B

4558

4.7u/16V

7

S-SR

R149 22K

R148 30K

R144 47K

R145 22K

R146 33K

C115

47u/16V

2

3

A+6.8V

C113

221

R150 22K

C116

47n

-12V

N107A

4558

1

B

A

INH

5.1CH

R157

100K

R160

100K

R161

100K

R162

100K

R158

100K

R159

100K

V-TU

R153

22K

B

A

INH

5.1CH

C153

47n

R154

22K

R155

22K

R156

22K

R191

100K

C124

15n

C123

822

C125

0.33u

C117

4.7u/16V

6

7

C118 8

4.7u/16V

C119 9

4.7u/16V

10

C120

4.7u/16V

11

12

C121

4.7u/16V

13

14

C122

15

4.7u/16V

16

17

18

19

20

21

1

2

3

4

5

C152

47u/16V

VD112

9.1V

GNDC

CIN

GNDR

RIN

GNDL

LIN

BYPASR

BYPASL

LTRE

LBASS3

OUT4

OUT3

OUT2

OUT1

AVDD

SWIN

GNDS

SRIN

SLIN

LBASS2

LBASS1

V106 S8050

6

5

N106

M62446

R198 1K

C154

47u/16V

R196 100K

C114 22P

N108B

4558

7

C143

47n

C142

47u/16V

D+5V

P_CLK

P_DATA

P_LT62446

L101 100uH

DVDD

42

CLK

41

DATA

40

LATCH

39

DGND

38

AGND

37

36

C138 4.7u/16V

SWOUT

35 C137 4.7u/16V SR1

SROUT

SLOUT

34 C136 4.7u/16V

33 C135 4.7u/16V

COUT

ROUT

RBASS2

32

LOUT

AVSS

CL1

31

30

29

CL2

CR1

C130

4.7u/16V

28

27

CR2

RTRE

RBASS3

C129

4.7u/16V

26

25

24

C133

23

C134 4.7u/16V

4.7u/16V

C131 47n

C127

15n

C128

822

C126

0.33u

RBASS1

22

SL1

C-1

R-1

L-1

C141

101

C132

47u/16V

C140

101

A-6.8V

C139

101

R163 100

R164 100

R165 100

TUNER_L

V-TU

TUNER_R

INH

A

B

+12V

R174

47K

R175

47K

R176

47K

R177

47K

R178

47K

+12V

-12V

+5V

GND

INH

A

B

-12V

DISP

OK-R

XS20

SR1

SL1

C-1

R-1

L-1

SW1

1

2

3

4

5

6

7

8

9

10

CON10

XP101

1

2

3

4

5

6

CON6

XS19

11

10

9

8

5

4

3

2

1

7

6

CON11

XS22

3

4

5

1

2

8

9

6

7

CON5

DISP

-12V +12V

+12V R170 75K

A-6.8V

A+6.8V

R129

220/0.5W

R131

220/0.5W

C112

R147

27K

6

5

101

N107B

4558

7

S-SL

R168 27K

R167

100K

R169 68K

C145

10n

2

3

C146

3.9n

-12V

N108A

4558

1

C147

47u/16V

+12V

C102 47n

C101

47u/16V

VD100

6.8V

C103 47n

C104

47u/16V

VD101

6.8V

R162

10K

R163

4.7K

C115

10u/16V

C134

154

13

12

C135

154

R164

100K

14

N106D

LM324

VD114

1N4148

R165

1K

R166

10K

R157

10K

R158

4.7K

C131

683

9

10

R152

10K

R153

4.7K

C128

223

103

C143

2

3

C144

R148

10K

R149

4.7K

R143

10K

R144

4.7K

R138

10K

R139

4.7K

R133

10K

R134

4.7K

C132

683

R159

100K

8

N106C

LM324

C129

223

R154

100K

-12V

1

N106A

LM324

VD113

1N4148

VD112

1N4148

R160

1K

R161

10K

R155

1K

R156

10K

C125

103

C122

472

6

5

6

5

C119

152

C145

2

103

3

C146

103

C116

561

13

12

+12V

103

C126

103

R150

100K

7

N106B

LM324

VD111

1N4148

R151

1K

R186

10K

C123

472

R145

100K

7

N105B

LM324

C120

152

VD110

1N4148

-12V

R140

100K

1

N105A

LM324

VD109

1N4148

R146

1K

R147

10K

R141

1K

R142

10K

+12V

C117

561

R135

100K

14

N105D

LM324

VD108

1N4148

R136

1K

R137

10K

35Hz

C136

2.2u/50V

134Hz

C133

2.2u/50V

300Hz

C130

2.2u/50V

1KHz

C127

2.2u/50V

2.2KHz

C124

2.2u/50V

6.3KHz

C121

2.2u/50V

16KHz

C118

2.2u/50V

R129

470K

R128

180K

R127

75K

R126

27K

R125

10K

R124

4.3K

R123

2.2K

R122

1.5K

DISPLAY

C114

10u/16V

R132

22K

R131

10K

13

14

15

12

1

5

2

4

X0

X1

X2

X3

X

VCC

GND

INH

X4

X5

VEE

X6

X7

N104

CD4051

A

B

C

3

16

8

6

7

11

10

9

10

9

R130

470K

N105C

LM324

8

C113

10P

+6.8V

R118

470/0.25W

C111

10u/16V

VD106

6.8V

+12V

R117

10K

C112

10u/16V

VD107

6.8V

-6.8V

R119

470/0.25W

-12V

P_GNA

P_GNB

P_GNC

DIST

C139

10u/25V

+12V

-12V

C140

100u/16V

C141

100u/16V

R180

47K

R181

100

R182

100

+12V

3

2

C151

103

VD119

C152

103

1

N107A

4558

1N4148

-12V

R183

22K

+12V

R184

5.6K

+5V

R187

10K

P_KT

R185

4.7K

P_DIST

D+5V

L100

100uH

C100

47u/16V

C102

104

+5V

L101

RH-357508

C142

103

C155

104

RR100

8*4.7K

P_RST

P_RS

R203

R204

P_MICDET

P_E

P_ADSELA

R205

R206

P_ADSELB

P_ADSELC

R225

R224

R223

R222

P_GNB

RESET

P_GNC

R221

P_SELECT

P_ADINT0

R207

R208

R220

R219

P_REM

P_CHARGE

P_DIST

R218

P_SEARCH

P_OKT

R217

R216

R215

R209 22

R210

G100

1M

C103

30P

24.576M

470

470

470

470

470

470

470

470

470

470

470

470

470

470

470

470

470

13

14

15

16

8

9

10

11

12

17

18

19

20

5

6

3

4

7

1

2

C104

30P

N100

SM79164

P10(T2)

P11(T2)

P12

P13

P14

P15

P16

P17

RST

P30(RXD)

P31(TXD)

P32(INT0)

P33(INT1)

P34(T0)

P35(T1)

P36(WR)

P37(RD)

XTAL2

XTAL1

GND

Vcc

P00(AD0)

P01(AD1)

P02(AD2)

P03(AD3)

P04(AD4)

P05(AD5)

P06(AD6)

P07(AD7)

EA/Vpp

ALE

PSEN

P27(A15)

P26(A14)

P25(A13)

P24(A12)

P23(A11)

P22(A10)

P21(A9)

P20(A8)

40

39

38

37

36

35

34

33

32

31

30

29

28

27

26

25

24

23

22

21

R231 470

470

470

470

470

470

470

470

10K

R230

R229

R228

R227

R202

R201

R200

R212

470

470

470

470

470

470

470

470

R226

R199

R195

R196

R192

R191

R198

R197

R213

10K

R214

10K

P_D0

P_D1

P_D2

P_D3

P_D4

P_D5

P_D6

P_D7

P_GNA

P_RLY

P_CLK

P_SCART

P_LT4094

P_LT62446

P_SCL

P_SDA

+5V

+5V

13

14

15

12

1

5

2

4

N108

X0

X1

X2

X3

X

X4

X5

X6

X7

CD4051

VCC

GND

INH

VEE

A

B

C

3

8

6

16

+6.8V

7

-6.8V

11

10

9

P_ADSELA

P_ADSELB

P_ADSELC

3

R167

2

100K

103

C147

+12V

4558

N102A

R169

470K

1

R170

1K

R172

10K

C148

103

+5V

-12V

R173

5.6K

+12V

VD117

3.3V

V103

2N5401

6

5

C137

0.1u

VD115

1N4148

VD116

1N4148

R174

4.7K

N102B

4558

7

V104

R175

9014

2.2K

R177

1K

VD118

1N4148

C138

0.22u/16V

R179

10K

R178

10K

+5V

P_ADINT0

V105

9014

P_CHARGE

P_SCL

P_SDA

C108

104

+5V

8

7

6

5

N101

VDD

TEST

SCL

SDA

24C02

A0

A1

A2

VSS

-

3

4

1

R104

0

2

P_RLY

DISP

DIST

P_OKT

P_CLK

P_SCART

P_LT62446

P_LT4094

P_SCL

P_SDA

DGND

D+5V

DGND

DGND

XP101

8

9

6

7

10

3

4

1

2

5

11

12

13

14

15

CON15

P_D1

P_D2

P_D3

P_D4

P_D5

P_D6

P_D7

P_RST

P_RS

P_MICDET

P_E

+12V

-12V

P_REM

P_D0

XP100

9

10

11

12

13

14

15

6

7

4

5

8

1

2

3

CON15

R+5V

C149

103

3

2

C150

103

+12V

N103A

4558

-12V

R116

470k

1

C110

4.7u/16V

47K

R115

6

5

R113

180K

N103B

4558

7

+12V

R111

4.7K

VD103

1N4148

R114

1.5K

R112

2.2K

R189

10K

V102

9014

C109

2.2u/50V

R110

22K

+12V

V101

9014

-12V

P_SELECT

VD102

1N4148

R108

10K

R109

15K

R107

VD101

4.7V

100

P_SEARCH

RESET

C105

103

R101

4.7K

V100

9014

R100

22K

R211

4.3K

C106

4.7u/16V

C107

104

R109

1K

R152 2.2K

V102

9014

R139

10K

V107

2N5401

V100

S8050

R162

10K

+12V

R110 1K

R151 2.2K

V108

2N5401

V101

S8050

R163

10K

V104

S8050

R153

4.7K

C119

22u/16V

V103

2N5401

V105

S8050

R143

10K

SWM

L1

R1

C1

SL1

SR1

R100

47K

1

LINE OUT

XC100

SW-OUT

BURST

BURST

XP20

6

7

4

5

8

1

2

3

9

10

L-1

R-1

C-1

CON10

SR-1

SL-1

C-1

R-1

L-1

SW1

DISP

OK-R

OK-L

OK-R

OK-L

KM

C1-1

DISP

KM

C1-1

R169 4.7K

C115

22u/16V

R116

100K

C100

10u/16V

R115

100K

R118

100K

C101

10u/16V

FAN

XS24

1

2

3

CON3

FAN

HEADPHONE

HEADPHONE

XS23

1

2

3

CON3

R170 1

R171 1

VD106 1N4004

VD107 1N4004

R167

4.7K

R168

4.7K

VD108

V111

9014

1N4148

V110

9014

V109

S8050

R106

22/0.5W

D+5V

C130

1000u/16V

1

N107 7805

Vin

C128

47n

Vout

3

C134

220u/16V

D+5V

C129 47n

C142 100u/16V

C143

47n

C144

47n

R120 22K

R127 39K

6

5

R128 22K

R122 39K

6

5

R129 20K

6

5

C103 47P

R132 27K

N100B

4558

7

C105 47P

R133 27K

N101B

4558

7

C107 47P

R134 22K

N102B

4558

7

C104 47P

C113

4.7u/16V

R121 22K

R137 12K

2

3

R101 43K

-12V

N100A

4558

1

C131 10u/16V

R1

+12V

C106 47P

C114

4.7u/16V

R123 22K

R140 12K

2

3

R102 43K

-12V

N101A

4558

1

C132 10u/16V

L1

+12V

C108 47P

C118

4.7u/16V

R124 12K

R108 7.5K

2

3

R103 47K

-12V

N102A

4558

1

C1

+12V

R158

220

R161

220

SR1

SL1

+12V

C124

47u/16V

C125

47u/16V

-12V

C121

47n

C122

47n

+12V

-12V

C135

103

C137

103

C138

103

P_TDO

P_TCE

P_CLK

P_DATA

P_LT62446

P_TCE

P_TDO

P_CLK

P_DATA

P_LT62446

A+5V

+12V

-12V

XP22

5

6

3

4

7

1

2

8

9

CON9

XS9

5

6

7

3

4

1

2

CON7

R111 4.7K

R112 4.7K

R142 47K

R145 47K

P_RLY

RLYC

LRM

SCM

P_RLY

RLYC

LRM

SCM

XS13

1

4

5

2

3

CON5

VD100

1N4148

VD101

1N4148

DIST

DIST

VD103

1N4148

VD104

1N4148

R104

22K

-

R105

22K

XS12

MIC1

GND

GND

MIC-DET

1

2

3

4

CON4

XS25

1

4

5

2

3

CON5

P_LT4094

P_DATA

P_CLK

D+5V

DGND

R-1

L-1

HEADPHONE

D+5V

C200 151

C217

R207 5.1K

10u/16V

2

3

R200 39K

-12V

N201A

4558

1

+12V

+12V

VD200

9.1V

R213 2K

R204

100/0.25W

C208

100u/16V

C219 10u/16V

C252

C211

47n

C236 10P

R240 220K

C202 47u/16V

1

2

3

C225

5.6n

C226

5.6n

4

5

6

7

8

9

10

N200 PT2315

REF

VDD

AGND

TREBL

CLK

DATA

DGND

LOUT

TREBR

RIN

ROUT

BOUT_R

LOUD_R BIN_R

NC BOUT_L

LOUD_L BIN_L

NC LIN

10u/16V

2

3

-12V

N202A

4558

1

VD201

R209 1K

1N4148

C205

47u/16V

+12V

20

19

18

17

16 C221

10u/16V

15

C227

68n

14 C228

68n

13

12

11

P_SCL

P_DATA

R220 10K

R216

5.6K

R241

47K

P_OKT

V200

9014

C237

103

R243

10K

HEADPHONE

HEADPHONE

P_MICDET

V202

9014

D+5V

D+5V

R223 27K

12

R260 30K

1

R255 36K

5

R262 43K

2

R256 62K

R257 120K

1

2

3

9

10

8

15

16

N210 CD4094

STR

DATA

CLK

Qs

Q`s

VSS

OUTB

VDD

Q1

Q2

Q3

Q4

Q5

Q6

Q7

Q8

9

10

8

15

16

1

2

3

N211 CD4094

STR

DATA

CLK

Qs

Q`s

VSS

OUTB

VDD

Q1

Q2

Q3

Q4

Q5

Q6

Q7

Q8

13

R254 15K

14

R218 20K

15

4

N207 CD4051

X0 XCOM

X1

X2

INH

VDD

X3

X4

VSS

VEE

X5

X6

X7

A(0)

B(1)

C(2)

4

4

5

6

3

6

12

11

7

14

13

12

11

5

6

7

14

13

16

+6.8V

8

7

11

10

-6.8V

9

FAN

LED

KM

FAN

BURST

RLYC

BURST

RLYC

KM

XS100

9

10

11

12

13

14

15

6

7

4

5

8

1

2

3

CON15

+12V

-12V

P_REM

P_D0

P_D1

P_D2

P_D3

P_D4

P_D5

P_D6

P_D7

P_RST

P_RS

P_MICDET

P_E

P_TDO

P_D0

P_D1

P_D2

P_D3

P_D4

P_D5

P_D6

P_D7

R228

100K

5

6

N202B

4558

7

C234

3.9n

R247 3.9K

+12V

R211

1K

C240

R244

150K

0.47u/16V

R246 R210

39K 1K

C231

68n

R202

20K

-12V

R242

330

V201

9014

XS102

6

7

8

3

4

1

2

5

CON8

D+5V

XS103

P_RST

P_RS

P_E

P_REM

LED

DGND

DGND

D+5V

8

9

6

7

3

4

1

2

5

CON9

R230 15K

R248

2K

R249

2K

R238

10K

6

5

R231 47K

N203B

4558

7

5

3

6

11

10

9

12

13

2

1

N205

CD4053

X0

X1

X

Y0

Y1

Y

Z0

Z1

Z

INH

A

B

C

VDD

Vss

VEE

14

15

4

16

+6.8V

8

7

-6.8V

XS101

9

10

11

12

13

14

15

6

7

4

5

8

1

2

3

CON15

P_RLY

DISP

DIST

P_OKT

P_CLK

P_TCE

P_LT62446

P_LT4094

P_SCL

P_DATA

P_CLK

P_LT62446

P_DATA

DGND

D+5V

DGND

DGND

R233

D+5V

200K

R234 200K

R235 200K

+12v

N203A

4558

3

2

1

P_RLY

DISP

DIST

P_TCE

L-1

R-1

C1-1

R250 2K

R251 2K

-12v

R253 10K

C245 4.7u/16V

OK-L

L-1

R-1

C-1

C1-1

OK-L

C246 4.7u/16V

OK-R

OK-R

R252 2K

VD203

1N4148

VD204

1N4148

VD206

1N4148

VD205

1N4148

LRM

LRM

SCM

SCM

R275

10K

R265

10K

R259

13

1

14

R215 2K

15

R272 3.3K

12

R270 6.8K

1

R266 8.2K

5

R271 12K

2

R261 18K

4

R269 33K

N208 CD4051

X0 XCOM

X1

X2

INH

VDD

X3

X4

VSS

VEE

X5

X6

X7

A(0)

B(1)

C(2)

3

6

16

+6.8V

8

7

11

10

-6.8V

9

+6.8V

-

C215

10u/16V

R236 510

+12V

R239

680

+12V

R263

220/0.5W

A+5V

VD202

5.1V

C206 47u/16V

1

C212

47n

2

C207 47u/16V

3

4

C239

103

R258

56K

5

6

C213

0.22u

C214

0.22u

7

8

N209

PT2399

VCC F1-I

REF F1-O

AG F2-O

DG F2-I

CLK P2-O

VCO P2-I

CC1 P1-I

CC0 P1-O

16

15

14

13

12

11

10

9

C242

5.6n

R221 12K

C250

561

R224 10K

C247 4.7u/16V

R222 10K

C248 4.7u/16V

R284 22K

C251

561

R232 15K

R225 10K

C233

0.1u

R226 15K

C232

0.1u

C243 5.6n

R264

4.7K

C238

103

C249

4.7u/16V

R227

10K

6

5

R229

100K

R268 10K

N204B

4558

7

R267 10K

2

3

-12v

C235

101

N204A

4558

1

+12v

C216

10u/16V

-6.8V

+12V

C203

47u/16V

C204

47u/16V

-12V

R274

680

R273 510

C209

47n

C210

47n

+12V

-12V

+12V

DGND

DGND

-12V

XS6

3

4

1

2

CON4

-12V

+12V

-12V

XP9

5

6

7

3

4

1

2

CON7

XP13

1

2

3

4

5

CON5

SWM

L1

R1

C1

SL1

SR1

P_Rly

P_RC

P_LRM

P_CSM

VD101

1N4148

C121

22u/16V

R161

4.7K

V115

2N5401

R101

10K

V101

S8050

R162

10K V116

S8050

C103

47u/100V

R105

2K

R106

2K

R117

220/0.5W

R113

150

V132

2SC5248

R102

100K

R103

1K

R131

10K

C111

R132

100K

R133

1K

10u/16V

R134

47K

C101

10u/16V

R104

47K

V102

2N5551

C104

220p

R107 47

V103

2N5551

R108

47

R109 1K

C105

100u/16V

V104

2N5551

C107

47u/100V

VD102

1N4148

R110

510 VD103

1N4148

C108

33p/500V

R111 R114

33K/0.5W

V106

2N5551

R115

1.2K

2.7K

V105

2N5401

C109

47n

R112

1K

V107

2N5551

C113

47u/100V

R135

2K

R136

2K

R121

33K

R116

150

R125

220/0.5W

R147

220/0.5W

R143

150

V133

2SA1964

V134

2SC5248

R120

100/0.25W

R122

100/0.25W

V117

2N5551

C114

220p

R137 47

V118

2N5551

R138

47

R139 1K

C115

100u/16V

V119

2N5551

C117

47u/100V

VD105

1N4148

R140

510 VD106

1N4148

C118

33p/500V

R141 R144

33K/0.5W

V121

2N5551

R145

1.2K

2.7K

V120

2N5401

R142

1K

V122

C119

47n

2N5551

R146

150

R155

220/0.5W

R151

33K

V135

2SA1964

R150

100/0.25W

R152

100/0.25W

P+30V

P+30V

V112

2SD1047C

R128

4.3K

R126

0.25/7W

R129

2.7K

C110

1u/16V

V114

2N5551

VD104

1N4148

R127

0.25/7W

R130

4.3K

V113

2SB817C

P-30V

P-30V

P+30V

P+30V

V127

2SD1047C

R158

4.3K

R156

0.25/7W

R159

2.7K

C120

1u/16V

V129

2N5551

VD107

1N4148

R157

0.25/7W

R160

4.3K

V128

2SB817C

P-30V

P-30V

R167

4.7K

+12V

R166

4.7K

R163

10K

C122

22u/16V

V130

2N5401

R168

10K

R165

4.7K

V150

9014

C123

22u/16V

C124

10u/16V

V131

S8050

R169

2K

C125

22u/16V

R170

820

VD10

3.3V

1

2

R171

27K

C126

47p

C127

47n

N104

LM1875

4

C128

47n

R176

27K

R172

47K

R164

20K

S_MUTE

V151

9014

C129

1u/50V

C130 1u/50V

C131

22u/16V

C132

22u/16V

R174

820

R173 1K

R177

1K

R178

820

P+18V

P-18V

R183

3W/10

R184

3W/22

1

C146

25V/220U

N101

L7812

Vin

C147

25V/220U

3

Vout

N102

L7912

Vout

3

Vin

C150

473

2

C151

473

C148

16V/100U

C149

16V/100U

-

SWM

Rly0

P_RC

Over

+12V

DGND

DGND

-12V

XP6

1

2

3

4

CON4

XS7

3

4

1

2

CON4

C155 47p

R175

24K

P+30V

P-30V

L2

R2

C2

SL2

SR2

P+30V

P-30V

XS8

6

7

4

5

8

1

2

3

9

CON9

9

8

7

11

10

N106

-Vs

IN+(1)

IN-(1)

OUT(1)

+Vs

GND

OUT(2)

IN-(2)

MUTE

IN+(2)

-Vs

TDA7265

1

2

3 P+18V

4

C159

C136

C157

25V/47U

473

5

S_MUTE

6 P-18V

100V/10U

C135

C134

25V/47U

473

C141

VD112

25V/4700U

VD111

C142

VD114

1N5404

FL102

T6.3AL250V

1N5404 C144

224

1N5404

1N5404

FL101

T6.3AL250V

C143

224

XS5

1

2

3

CON3

R179

24K

C156 47p

XS1

2

1

CON2

OVER

P_RC

RLY0

SWM

XP7

4

3

2

1

CON4

L2

R2

C2

SL2

SR2

VC+

GND

GND

VC-

XP8

7

8

5

6

9

3

4

1

2

CON9

VC+

VC-

FL100

T6.3AL250V

C102

CT7 103

XS2

1

2

CON2

XS3

1

2

CON2

TO SWITCH

TO TRANS

RLY0

SWM

VD108

IN4148

R101

1K

VD113

1N4004

R102

1K

R103

47K

C126

103

R104

10K

V100

C9014

R100

47/3W

R111

4.7/1W

R112

4.7/1W

R113

4.7/1W

R114

4.7/1W

R115

4.71W

C116 0.1u

C117 0.1u

C118 0.1u

C119 0.1u

C120 0.1u

R105

10K

From TRANS

~V1

0

~V1

V-RLY

XS4

3

4

1

2

CON4

C110

220u/35V

C122

104

R106

4.7K

L100

0.7UH

L101

0.7UH

V101

C9014

V102

C9014

C113

220u/16V

R109

10k

C114

220u/16V

R116

51K

R117

51K

R118

47K

R119

47K

R120

47K

1

2

XL101A

WP6

C103

0.22u

C104

0.22u

FL101

T8AL250V

FL102

T8AL250V

VD110

IN4148

R108

100K

R107

100K

C121

103

V103

C9015

VD111

C115

47U/25V

5.1V

C100

22n

C101 22n

VD100

1N5404

VD101

1N5404

VD102

1N5404

C105 22n

VD103

1N5404

VD104

1N5404

VD105

1N5404

VD106

1N5404

VD107

1N5404

C111 22n

R110

56K

1

2

XL101A

WP6

C108

8200u/63V

C109

8200u/63V

C123

103

C112

103

Vc+

C106

0.1u

C107

0.1u

Vc-

-

9

10

11

12

Y100

1

5

2

6

3

7

4

8

13 14

SWM

RLY0

XL101A

1

2

WP6

XL100A

1

2

WP4

XL100A

1

2

WP4

RELAY-4

VD112

1N4148

V104

C8050

V105

C9014

XP24

3

2

1

5

4

CON5

D+5V

DGND

R

L

PH_SW

C103

R101

47K

R103 4.7K

10u/16V

D+5V

R105

47K

3

2

D+5V

N100A

PT2308

1

C106 330u/16V

R107 10K

R109

47K

C102

100u/16V

R106

47K

C105 10u/16V

R102

R104 4.7K

C104 10u/16V

47K

5

6

N100B

PT2308

7

C107

330u/16V

R108 10K

R110

47K

PH_R

PH_L

D+5V

X100

9

8

2

1

4

3

7

6

5

MIC

-

PH_SW

MIC1

R100 22K

XP12

1

2

3

4

CON4

MIC1

GND

GND

MIC-DET

C100 103 C101 103

XP104

6

7

4

5

8

1

2

3

CON8

P_RST'

P_RS'

P_RW'

P_E'

P_D0'

P_D1'

P_D2'

XP105

6

7

4

5

8

1

2

3

CON8

P_D3'

P_D4'

P_D5'

P_D6'

P_D7'

+3V3

SGND

19

1

6

7

4

5

8

2

3

9

N102 74VHC245

A4

A5

A6

A7

A0

A1

A2

A3

B0

B1

B2

B3

B4

B5

B6

B7

E

DIR

VCC

GND

18

17

16

15

14

13

12

11

20

10

+3V3

C102

104

P_D0

P_D1

P_D2

P_D3

P_D4

P_D5

P_D6

P_D7

XS102

7

8

5

6

3

4

1

2

CON8

+3V3

C105

47U/16V

V100

S8050

R100

1

VD100

LED

9

C100 151 G100

10

C101 151

11

455KHZ

12

6

7

8

1

2

3

4

5

REM

VDD

SEL

OSCO

OSCI

VSS

N101 PT2222

KI2 KI1

KI3

KI4

KI5

KI6

KI7

KI0

CCS

KI/O0

KI/O1

KI/O2

KI/O3

KI/O4

KI/O5

KI/O6

KI/O7

LMP

21

20

19

18

17

24

23

22

16

15

14

13

KEY

S103

KEY

S104

KEY

S105

KEY

S100

KEY

S101

KEY

S102

KEY

S109

KEY

S110

KEY

S111

KEY

S106

KEY

S107

KEY

S108

VD101 1N4148

VD102 1N4148

VD103 1N4148

VD104 1N4148

P_RST'

P_RS'

P_RW'

P_E'

6

7

4

5

8

2

3

9

19

1

N103 74VHC245

A4

A5

A6

A7

A0

A1

A2

A3

B0

B1

B2

B3

B4

B5

B6

B7

E

DIR

VCC

GND

18

17

16

15

14

13

12

11

20

10

+3V3

C103

104

XS103

P_RST

P_RS

P_RW

P_E

P_REM

DGND

DGND

D+5V

7

8

5

6

9

3

4

1

2

CON9

R101

10K

1

N100 REMOT

VS

OUT

GND

3

2

R102

47

C104

47u/16V

D+5V

VD105 VD106 VD107

C108

1N4148

47U/16V

1N4148 1N4148

C107

47U/16V

+3V3

C106

473

-

Chart 6 BOM List

MATERIAL

CODE

MATERIAL NAME

6.1 VOLUME BOARD

AV225T(RU) 5447607

00000229 CARBON FILM RESISTOR

00000469 CARBON FILM RESISTOR

00000489 CARBON FILM RESISTOR

SPECIFICATIONS

1/6W1K±5% BELT

1/6W22K±5% BELT

1/6W27K±5% BELT

LOCATION

0881743 IC

0882161 IC

0880445 IC

0880124 IC

0881393 IC

0882223 IC

0880417 IC

F4558 DIP

AZ4558 DIP

4558C DIP

NJM4558D DIP

IL4558N DIP

NE5532 DIP

CD4053BCN DIP

N108

N108 ①

N108 ①

N108 ①

N108 ①

0881430 IC

0881429 IC

0880443 IC

0881380 IC

2120325 FLATCABLE

3870591 GROUNDING PIECE

0390425 INDUCTOR

1940029 SOCKET

1940030 SOCKET

1910117 TERMINAL SOCKET

1910118 TERMINAL SOCKET

CD4053BE DIP

CD4052BE DIP

CD4052BCN DIP

M62446AFP SOP

6P140 2.5 2 SOCKET WITH NEEDLE

AV100

100UH±10% 0307 SHAPED 12.5

9P 2.5mm

10P 2.5mm

AV6-8.4-13/ES

AV4-8.4-13/ES

1940072 CABLE SOCKET 6/5P 1.25mm STRAIGHT DUAL LINE PLUG XS19

5447608 PCB SEMI-FINISHED PRODUCT 2110T-0 AV110T(RU) AI SEGMENT

6.2 VOLUME BOARD AI SEGMENT

AV225T(RU) 5447608

L101

XS22

XS20

XC102

XC101

N104,N105,N107

N103,N102

N103,N102   ②

N101

N101   ③

N106

XP101

2100003 CONNECTED CORDS

00000099 CARBON FILM RESISTOR

F 0.6 SHAPED 7.5mm

1/6W100O±5% BELT

W1~W73

R163,R164,R165

R103,R106,R107,R110,R111,R114,R

115,R118,R119,R122,R124~R126,R1

97,R130,R198

R141,R145,R149,R150,R153,R154,R

155,R156

R143,R147,R168

- 105 -

MATERIAL

CODE

MATERIAL NAME

00000499 CARBON FILM RESISTOR

00000509 CARBON FILM RESISTOR

00000529 CARBON FILM RESISTOR

SPECIFICATIONS

1/6W30K±5% BELT

1/6W33K±5% BELT

1/6W47K±5% BELT

00000549 CARBON FILM RESISTOR

00000569 CARBON FILM RESISTOR

00000579 CARBON FILM RESISTOR

00000599 CARBON FILM RESISTOR

00000629 CARBON FILM RESISTOR

00006239 CARBON FILM RESISTOR

02003059 POLYPROPYLENECAPACITOR

02003079 POLYPROPYLENECAPACITOR

02003089 POLYPROPYLENECAPACITOR

02003109 POLYPROPYLENECAPACITOR

02003149 POLYPROPYLENECAPACITOR

02101439

TEMETAL OXIDE FILM

RESISTORLENECAPACITOR

02101449

TEMETAL OXIDE FILM

RESISTORLENECAPACITOR

02101489

TEMETAL OXIDE FILM

RESISTORLENECAPACITOR

02102209

TEMETAL OXIDE FILM

RESISTORLENECAPACITOR

02101599

TEMETAL OXIDE FILM

RESISTORLENECAPACITOR

02102239

TEMETAL OXIDE FILM

RESISTORLENECAPACITOR

02101419

METAL POLYESTER

FILMCAPACITOR

02600029 CD

1/6W56K±5% BELT

1/6W68K±5% BELT

1/6W75K±5% BELT

1/6W100K±5% BELT

1/6W150K±5% BELT

1/2W220O±5% BELT

50V 22P±10% SHAPED 5mm BELT

50V 101±10% SHAPED 5mm BELT

50V 221±10% SHAPED 5mm BELT

50V 103±10% SHAPED 5mm BELT

50V 822±10% SHAPED 5mm BELT

100V392±10% C5 BELT

100V 153±10% C5 BELT

100V 473±10% SHAPED 5mm BELT

100V 473±5% SHAPED 5mm BELT

100V 103±10% SHAPED 5mm BELT

100V 103±5% SHAPED 5mm BELT

CL21X100V334K C5 BELT

CD11 16V47U±20%5×11 C5 BELT

02604389 CD CD11 16V4.7U±20%5×11C5 BELT

05800459 VOLTAGE REGULATOR DIODE

05800099 VOLTAGE REGULATOR DIODE

07801389 TRIODE

1564153 PCB

6.3 SIGNAL DISPOSAL BOARD

AV225T(RU) 5448199

6.8V±5% 1/2W BELT

9.1V±5% 1/2W BELT

8050D BELT

2110T-1

- 106 -

LOCATION

R148

R142,R146

R104,R105,R108,R109,R112,R113,R

116,R120,R117,R132,R121,R144,R1

40,R152,R174~R178

R137,R138,R195

R169

R170

R139,R157~R162,R167,R191,R196

R133,R134,R135,R136

R129,R131

C114

C109,C110,C112,C139,C140,C141

C105,C106,C113

C144,C148

C123,C128

C146

C124,C127

C102, C103,C116,C131,C143,C153

C102, C103,C116,C131,C143,C153

C145

C145    ⑤

C125,C126

C101,C104,C107,C108,C115,C132,C

142,C147,C152,C154

C111,C117,C118,C119,C120,C121,C

122,C129,C130,C133,C134,C135,C1

38,C136,C137

VD100,VD101

VD112

V106

MATERIAL

CODE

0880230 IC

0880417 IC

0881430 IC

0880379 IC

0880247 IC

0880499 IC

0881743 IC

0882161 IC

0880445 IC

0880124 IC

0881393 IC

0882223 IC

MATERIAL NAME

0880807 IC

0880271 IC

0881428 IC

0880444 IC

0880654 IC

0882338 IC

0260030 CD

0010226 METAL OXIDE FILM RESISTOR

1940002 SOCKET

1940003 SOCKET

1940004 SOCKET

1940007 SOCKET

1940009 SOCKET

1940029 SOCKET

1910034 TERMINAL SOCKET

1970064 FLAT NEEDLE

2120296 FLATCABLE

2121187 FLATCABLE

2121561 FLATCABLE

SPECIFICATIONS LOCATION

PT2399 DIP

CD4053BCN DIP

CD4053BE DIP

LM7805 GOLD SEALED TO-220

MC7805CT GOLD SEALED TO-220

N209

N205

N205    ⑥

N107

L7805CV GOLD SEALED TO-220

F4558 DIP

AZ4558 DIP

N107    ⑦

N107    ⑦

N201~N204

N201~N204    ⑧

N201~N204    ⑧

N201~N204    ⑧

4558C DIP

NJM4558D DIP

IL4558N DIP

NE5532 DIP

PT2315 SOP

CD4051 DIP

CD4051BE DIP

CD4094BCN DIP

TC4094BP DIP

CD4094BE(TI) DIP

CD11 16V1000U±20%10×16 5

1/2W22O±5% SHAPED 12.5

3P 2.5mm

4P 2.5mm

5P 2.5mm

N201~N204    ⑧

N100~N102

N200

N207,N208

N207,N208    ⑨

N210,N211

N210,N211    ⑩

N210,N211    ⑩

C130

R106

XS23,XS24

XS6,XS12

XS13

7P 2.5mm

8P 2.5mm

9P 2.5mm

XS9

XS102

XS103

AV1-8.4-5G BLACK

15P 40mm2.54mm GLUE CORE OUTSIDE

SPACE BETWEEN:28.4mm

5P140 2.5 2 SOCKET WITH NEEDLE

XC100

XS25

10P75 2.5 2 PIN,WITH NEEDLE,THE SAME

DIRECTION

XP20

9P75 2.5 2 PIN,WITH NEEDLE,TOGETHER

DIRECTION

XP22

- 107 -

MATERIAL

CODE

MATERIAL NAME

3580092 HEAT RADIATION BOARD

3870591 GROUNDING PIECE

3026724 PLASTIC BRACKET

4000197 SELF-TAPPING SCREW

4000462 SELF-TAPPING SCREW

SPECIFICATIONS

14×8×16 AV130

AV100

H=28.4mm AV230

BT3×8 NICKEL

BT 3×6H WHITE NICKEL

5448200 PCB SEMI-FINISHED PRODUCT 3215T-3 AV225T(RU)AI SEGMENT

5448201 PCB SEMI-FINISHED PRODUCT 7228-1 AV225T(RU)

6.4 SIGNAL DISPOSAL BOARD AI SEGMENT

AV225T(RU) 5448200

2100003 CONNECTED CORDS

2100004 CONNECTED CORDS

2100007 CONNECTION CORDS

2100017 CONNECTED CORDS

00000029 CARBON FILM RESISTOR

00000119 CARBON FILM RESISTOR

00000139 CARBON FILM RESISTOR

00000179 CARBON FILM RESISTOR

00000199 CARBON FILM RESISTOR

00000229 CARBON FILM RESISTOR

00000269 CARBON FILM RESISTOR

00000279 CARBON FILM RESISTOR

00000309 CARBON FILM RESISTOR

00000329 CARBON FILM RESISTOR

00000349 CARBON FILM RESISTOR

00000359 CARBON FILM RESISTOR

00000369 CARBON FILM RESISTOR

00000379 CARBON FILM RESISTOR

00000389 CARBON FILM RESISTOR

F 0.6 SHAPED 7.5mm

F 0.6 SHAPED 10mm

F 0.6 SHAPEN 15mm

F 0.6 SHAPED 20mm

1/6W1O±5% BELT

1/6W220O±5% BELT

1/6W330O±5% BELT

1/6W510O±5% BELT

1/6W680O±5% BELT

1/6W1K±5% BELT

1/6W2K±5% BELT

1/6W2.2K±5% BELT

1/6W3.3K±5% BELT

1/6W3.9K±5% BELT

1/6W4.7K±5% BELT

1/6W 5.1K±5% BELT

1/6W5.6K±5% BELT

1/6W6.8K±5% BELT

1/6W8.2K±5% BELT

00000409 CARBON FILM RESISTOR 1/6W10K±5% BELT

00000419 CARBON FILM RESISTOR

00000439 CARBON FILM RESISTOR

1/6W12K±5% BELT

1/6W15K±5% BELT

LOCATION

W1,W3~W24,W26~W46,W48~59,W

84,W85

W2,W60~W70

W71~W78

W79~W83

R259

R158,R161

R242

R236,R273

R239,R274

R110,R109,R209~R211

R248~R252,R213,R215

R151,R152

R272

R247

R153,R167,R168,R169,R264,R111,R

112

R207

R216

R270

R266

R139,R220,R222,R238,R253,R267,R

268,R143,R162,R163,R224,R225,R2

27,R243,R265,R275

R271,R221,R137,R140,R124,R103

R232,R254,R226,R230

- 108 -

MATERIAL

CODE

MATERIAL NAME

00000449 CARBON FILM RESISTOR

00000459 CARBON FILM RESISTOR

00000469 CARBON FILM RESISTOR

00000489 CARBON FILM RESISTOR

00000499 CARBON FILM RESISTOR

00000509 CARBON FILM RESISTOR

00000519 CARBON FILM RESISTOR

00000529 CARBON FILM RESISTOR

00000549 CARBON FILM RESISTOR

00000559 CARBON FILM RESISTOR

00000599 CARBON FILM RESISTOR

00000609 CARBON FILM RESISTOR

00000629 CARBON FILM RESISTOR

00000659 CARBON FILM RESISTOR

00000669 CARBON FILM RESISTOR

00001759 CARBON FILM RESISTOR

00003459 CARBON FILM RESISTOR

00003519 CARBON FILM RESISTOR

00003609 CARBON FILM RESISTOR

00006239 CARBON FILM RESISTOR

00102289 METAL OXIDE FILM RESISTOR

02003069 POLYPROPYLENECAPACITOR

02003079 POLYPROPYLENECAPACITOR

02003109 POLYPROPYLENECAPACITOR

02003159 POLYPROPYLENECAPACITOR

02003299 POLYPROPYLENECAPACITOR

02003309 POLYPROPYLENECAPACITOR

02100689

TEMETAL OXIDE FILM

RESISTORLENECAPACITOR

02101439

TEMETAL OXIDE FILM

RESISTORLENECAPACITOR

02101489

TEMETAL OXIDE FILM

RESISTORLENECAPACITOR

02102209

TEMETAL OXIDE FILM

RESISTORLENECAPACITOR

100V 683 ±10% SHAPED 5mm BELT

100V392±10% C5 BELT

100V 473±10% SHAPED 5mm BELT

100V 473±5% SHAPED 5mm BELT

SPECIFICATIONS

1/6W18K±5% BELT

1/6W20K±5% BELT

1/6W22K±5% BELT

1/6W27K±5% BELT

1/6W30K±5% BELT

1/6W33K±5% BELT

1/6W39K±5% BELT

1/6W47K±5% BELT

1/6W56K±5% BELT

1/6W62K±5% BELT

1/6W100K±5% BELT

1/6W120K±5% BELT

1/6W150K±5% BELT

1/6W200K±5% BELT

1/6W220K±5% BELT

1/4W100O±5% BELT

1/6W36K±5% BELT

1/6W43K±5% BELT

1/6W 7.5K±5% BELT

1/2W220O±5% BELT

1/4W1O±5% BELT

50V 47P±10% SHAPED 5mm BELT

50V 101±10% SHAPED 5mm BELT

50V 103±10% SHAPED 5mm BELT

50V 10P±10% SHAPED 5mm BELT

50V561±10% SHAPED 5mm BELT

50V151±10% SHAPED 5mm BELT

LOCATION

R261

R202,R129,R218

R121,R123,R120,R128,R284,R134,R

104,R105

R223,R132,R133

R260

R269

R127,R122,R246,R200

R100,R241,R231,R142,R145

R258

R256

R115,R116,R228,R229,R118

R257

R244

R233,R234,R235

R240

R204

R255

R262,R101,R102

R108

R263

R170,R171

C103~C108

C235

C237~C239,C135,C138,C137

C236

C250,C251

C200

C227,C228,C231

C234

C121,C122,C128,C129,C143,C144,C

209~C212

C121,C122,C128,C129,C143,C144,C

209~C212        ⑾

- 109 -

MATERIAL

CODE

MATERIAL NAME

02101579

TEMETAL OXIDE FILM

RESISTORLENECAPACITOR

02102219

TEMETAL OXIDE FILM

RESISTORLENECAPACITOR

2101049

METAL POLYESTER

FILMCAPACITOR

02101459

METAL POLYESTER

FILMCAPACITOR

02600019 CD

02600029 CD

02601819 CD

02601889 CD

02603909 CD

02604379 CD

02604389 CD

05700049 DIODE

0570006 DIODE

05800069 VOLTAGE REGULATOR DIODE

05800099 VOLTAGE REGULATOR DIODE

07800259 TRIODE

07800329 TRIODE

07801389 TRIODE

1564230 PCB

6.5 CPU BOARD

AV225T(RU) 5448201

0260019 CD

0260025 CD

0260049 CD

0260067 CD

0260096 CD

0260127 CD

0880013 IC

0880271 IC

0881428 IC

0881523 IC

CL21X 100V 104K C5 BELT

CD11 16V22U±20%5×11 C5 BELT

CD11 16V47U±20%5×11 C5 BELT

CD11 16V220U±20%6×12 C5 BELT

CD11 16V100U±20%6×12 C5 BELT

CD11 50V0.47U±20%5×11C5 BELT

CD11 16V10U±20%5×11C5 BELT

CD11 16V4.7U±20%5×11C5 BELT

1N4004 BELT

1N4148

5.1V±5% 1/2W BELT

9.1V±5% 1/2W BELT

2N5401 BELT

9014C BELT

8050D BELT

3215T-3

SPECIFICATIONS

100V 562±10% SHAPED 5mm BELT

100V 562±5% SHAPED 5mm BELT

CL21X100V224 K C5BD

CD11 16V10U±20%5×11 2

CD11 16V47U±20%5×11 2

CD11 50V0.22U±20%5×11 2

CD11 50V2.2U±20%5×11 2

CD110 16V100U±20%6×12 2.5

CD11 16V4.7U±20%5×11 2

LM324N DIP

CD4051 DIP

CD4051BE DIP

AT24C04 DIP

LOCATION

C225,C226,C242,C243

C225,C226,C242,C243    ⑿

C213,C214

C232,C233

C119,C115

C124,C125,C202~C207

C134

C142,C208

C240

C131,C100,C101,C132,C215~C217,

C219,C221,C252

C113,C114,C118,C245~C249

VD106,VD107

VD201,VD100,VD101,VD103,VD104,

VD108,VD203~VD206

VD202

VD200

V103,V107,V108

V102,V110,V111,V200,V201,V202

V105,V101,V104,V100,V109

C111,C112,C114,C115,C139

C100

C138

C118,C121,C124,C127,C130,C133,C

136,C109

C140,C141

C110,C106

N105,N106

N104,N108

N104,N108    ⒀

N101

- 110 -

MATERIAL

CODE

0881227 IC

0880445 IC

0880124 IC

MATERIAL NAME

0881393 IC

0100008 RESISTANCE NETWORK

0970036 CERAMIC RESONATOR

0960165 CRYSTAL OSCILLATOR

0960169 CRYSTAL OSCILLATOR

0390168 INDUCTOR

0390353 SMDMAGNETIC BEADS

0000279 CARBON FILM RESISTOR

0210111

METAL POLYESTER

FILMCAPACITOR

0570006 DIODE

SPECIFICATIONS

RC4558P DIP

4558C DIP

NJM4558D DIP

IL4558N DIP

1/6W 4.7K±5% 9P

24.576MHz

24.576MHz 49-U

24.576MHz 49-S

100UH±10% 0410 SHAPED 12.5mm

RH-357508 SHAPED 12.5mm

1/4W470O±5% SHAPED 10

CL21X 63V 104±5% 5

1N4148

LOCATION

N102,N103,N107

N102,N103,N107    ⒁

N102,N103,N107    ⒁

N102,N103,N107    ⒁

RR100

G100

G100    ⒂

G100    ⒂

L100

L101

R118,R119

C137

VD102,VD103,VD108,VD109,VD110,

VD111,VD112,VD113,VD114,VD115,

VD116,VD118,VD119

VD117

VD101

VD106,VD107

V103

V101,V104,V102,V105,V100

05800019 VOLTAGE REGULATOR DIODE

05800059 VOLTAGE REGULATOR DIODE

05800459 VOLTAGE REGULATOR DIODE

0780025 TRIODE

AV225T(RU) 5448209

0090004 SMD RESISTOR

0090011 SMD RESISTOR

3.3V±5% 1/2W BELT

4.7V±5% 1/2W BELT

6.8V±5% 1/2W BELT

2N5401

0780032 TRIODE

0890283 PROGRAM CPU

9014C

CPU225TRU-0

1850005 DUAL RANKIC SOCKET 40P DIP

5448209 PCB SEMI-FINISHED PRODUCT 7228-1-SMD AV225T(RU)

0260547 CD CD11C 16V1U±20%4×7 1.5

0260548 CD CD11C 16V2.2u±20%4×7 1.5

2×4 11.6/16.5 2.54mm STRAIGHT FLEX 1970073 DUAL FLAT NEEDLE

6.6 CPU BOARD-SMD

1/16W 22O±5% 0603

1/16W 470O±5% 0603

0090014 SMD RESISTOR 1/16W 1K±5% 0603

0090016 SMD RESISTOR

0090017 SMD RESISTOR

1/16W 1.5K±5% 0603

1/16W 2.2K±5% 0603

N100

C104~C108

C100~C103

XP104,XP105

R209

R191,R192,R195~R208,R215~R231

R136,R141,R146,R151,R155,R160,R

165,R170,R177

R122,R114

R112,R123,R175

- 111 -

MATERIAL

CODE

MATERIAL NAME

0090019 SMD RESISTOR

0090023 SMD RESISTOR

0090024 SMD RESISTOR

0090026 SMD RESISTOR

0090027 SMD RESISTOR

0090029 SMD RESISTOR

0090034 SMD RESISTOR

0090109 SMD RESISTOR

0090181 SMD RESISTOR

0090184 SMD RESISTOR

0090199 SMD RESISTOR

0090208 SMD RESISTOR

0090225 SMD RESISTOR

0090242 SMD RESISTOR

0310067 SMD CAPACITOR

0310072 SMD CAPACITOR

0310594 SMD CAPACITOR

0310188 SMD CAPACITOR

0310191 SMD CAPACITOR

0310471 SMD CAPACITOR

0310198 SMD CAPACITOR

0310202 SMD CAPACITOR

0310206 SMD CAPACITOR

0310634 SMD CAPACITOR

1631531 PCB

0090023 SMD RESISTOR

1940214 CABLE SOCKET

1631476 PCB

6.7 AMPLIFIER BOARD

SPECIFICATIONS

1/16W 4.7K±5% 0603

1/16W 10K±5% 0603

1/16W 15K±5% 0603

1/16W 22K±5% 0603

1/16W 27K±5% 0603

1/16W 47K±5% 0603

1/16W 100K±5% 0603

1/16W 1MO±5% 0603

1/16W 100O±5% 0603

1/16W 4.3K±5% 0603

1/16W 180K±5% 0603

1/16W 470K±5% 0603

1/16W 5.6K±5% 0603

1/16W 75K±5% 0603

50V 152 ±10% 0603

50V 103 ±10% 0603

25V 104 ±10% 0603

50V 10P ±5% NPO 0603

50V 30P ±5% NPO 0603

50V 561±5% NPO 0603

50V 472 ±10% X7R 0603

50V 223 ±10% 0603

50V 683 ±10% 0603

25V 154 ±10% X7R 0603

7228-1

1/16W 10K±5% 0603

28P 0.5mm SMD, SUBMIT MEET WITH

CLASP

1228-0

LOCATION

R111,R134,R139,R144,R149,R153,R

158,R163,R174,R185,R101

R108,R117,R125,R131,R133,R137,R

138,R142,R143,R147,R148,R152,R1

56,R157,R161,R162,R166,R172,R17

8,R179,R186,R187,R189,R212,R213,

R214

R109

R100,R110,R132,R183

R126

R115,R180

R135,R140,R145,R150,R154,R159,R

164,R167

R210

R107,R181,R182

R124,R211

R128,R113

R129,R130,R116,R169

R173,R184

R127

C119,C120

C105,C142,C143,C144,C145,C146,C

147,C148,C149,C150,C125,C126,C1

52,C151

C102,C107,C108,C155

C113

C103,C104

C116,C117

C122,C123

C128,C129

C131,C132

C134,C135

R100,R101

B100

- 112 -

MATERIAL

CODE

MATERIAL NAME

AV225T(RU) 5448202

2100003 CONNECTED CORDS

2100004 CONNECTED CORDS

2100006 CONNECTION CORDS

2100007 CONNECTION CORDS

2100010 CONNECTED CORDS

2100016 CONNECTION CORDS

2100017 CONNECTED CORDS

2100024 CONNECTION CORDS

0010340 RY

0000125 CARBON FILM RESISTOR

0000128 CARBON FILM RESISTOR

0000129 CARBON FILM RESISTOR

0000130 CARBON FILM RESISTOR

0000133 CARBON FILM RESISTOR

0000137 CARBON FILM RESISTOR

00000139 CARBON FILM RESISTOR

0000141 CARBON FILM RESISTOR

0000144 CARBON FILM RESISTOR

0000146 CARBON FILM RESISTOR

0000276 CARBON FILM RESISTOR

0000339 CARBON FILM RESISTOR

0000379 CARBON FILM RESISTOR

0000386 CARBON FILM RESISTOR

0000452 CARBON FILM RESISTOR

0000466 CARBON FILM RESISTOR

0000495 CARBON FILM RESISTOR

0000475 CARBON FILM RESISTOR

0000556 CARBON FILM RESISTOR

0040069 CEMENT RESISTOR

SPECIFICATIONS

F 0.6 SHAPED 7.5mm

F 0.6 SHAPED 10mm

F 0.6 SHAPED 12.5mm

F 0.6 SHAPEN 15mm

F 0.6 SHAPED 5mm

F 0.6 SHAPEN 18mm

F 0.6 SHAPED 20mm

F 0.6 SHAPEN 22mm

3W10O±5% SHAPED R 20×8

1/6W510O±5% SHAPED 7.5

1/6W820O±5% SHAPED 7.5

1/6W1K±5% SHAPED 7.5

1/6W1.2K±5% SHAPED 7.5

1/6W4.7K±5% SHAPED 7.5

1/6W10K±5% SHAPED 7.5

1/6W330O±5% BELT

1/6W27K±5% SHAPED 7.5

1/6W47K±5% SHAPED 7.5

1/6W100K±5% SHAPED 7.5

1/4W100O±5% SHAPED 10

1/6W3.3K±5% SHAPED 7.5

1/6W2K±5% SHAPED 7.5

1/6W30K±5% SHAPED 7.5

1/6W150O±5% SHAPED 7.5

1/2W220O±5% SHAPED 12.5

1/6W4.3K±5% SHAPED 7.5

1/6W2.7K±5% SHAPED 7.5

1/6W47O±5% SHAPED 7.5

7W0.25O±5%SQM SHAPED R 10×5

LOCATION

W1,W16,W42,W43,W54,W61,W76,

W77,W78

W8,W9,W15,W21,W24,W36,W37,W

45,W46,W48,W51,W57,W63,W69,W

71,W74,W80

W3,W18,W20,W22,W27,W31,W35,

W41,W52,W59,W62,W65,W70,W73

W2,W14,W19,W26,W50,W53,W67,

W72,W81

W33,W47,W49,W60,W68

W28,W39,W40,W58,W75

W56

W5,W6,W7,W10,W11,W12,W13,W6

4

R183,R184

R110,R140

R170,R174,R178

R103,R109,R112,R133,R139,R142,R

173,R177

R115,R145

R161,R166,R165,R167

R101,R131,R162,R163,R168

R164

R171,R176

R104,R134,R172,R169

R102,R132

R120,R122,R150,R152

R129,R159

R105,R106,R135,R136

R175,R179

R113,R116,R143,R146

R117,R125,R147,R155

R128,R130,R158,R160

R114,R144

R107,R108,R137,R138

R126,R127,R156,R157

- 113 -

MATERIAL

CODE

MATERIAL NAME

0010322 METAL OXIDE FILM RESISTOR

0010321 METAL OXIDE FILM RESISTOR

0200066 PORCELAINCAPACITOR

0200333 POLYPROPYLENECAPACITOR

0200306 POLYPROPYLENECAPACITOR

0210030 TERYLENECAPACITOR

SPECIFICATIONS

1/4W33K±5%

1/2W33K±5% SHAPED 12.5

50V 221±10% 2.5mm

500V33P±10% NPO SHAPED 5mm

50V 47P±10% SHAPED 5mm

100V 104±10% 7mm

0210147 TERYLENECAPACITOR 100V 473±10% 5mm

0260039 CD

0260019 CD

0260021 CD

0260027 CD

0260063 CD

0260163 CD

0260134 CD

0260135 CD

0260465 CD

0260487 CD

0882646 IC

0880131 IC

0880380 IC

0881418 IC

0880324 IC

0880325 IC

0880381 IC

0882618 IC

0881102 IC

0570006 DIODE

0570020 DIODE

0580080 VOLTAGE REGULATOR DIODE

0780032 TRIODE

0780025 TRIODE

CD11 25V47U±20%5×11 2

CD11 16V10U±20%5×11 2

CD11 16V22U±20%5×11 2

CD11 16V100U±20%6×12 2.5

CD11 50V1U±20%5×11 2

CD11 50V47U±20%6×12 2.5

CD11 25V4700U±20%16×35 7.5

CD11 25V4700U±20%16×40 7.5

CD11 100V10U±20%6.3×11 2.5

CD11K35V220U±20% 8×16 3.5

CW7812CS TO-220

L7812CV GOLD SEALED TO-220

LM7812 GOLD SEALED TO-220

UA7812C GOLD SEALED TO-220

MC7812CT GOLD SEALED TO-220

MC7912CT GOLD SEALED TO-220

LM7912CT GOLD SEALED TO-220

CD1875CZ TO-220

TDA7265 Multiwatt11

1N4148

1N5404

3.3V±5% 1/2W SHAPED 7.5

9014C

2N5401

LOCATION

R121,R151

R111,R141

C104,C114

C108,C118

C155,C156

C143,C144

C109,C119,C127,C128,C139,C140,C

150,C151,C102,C106,C112,C116,C1

34,C157

C135,C136

C101,C111,C124

C121,C123,C122,C125,C131,C132

C105,C115,C148,C149

C129,C130,C110,C120,C137

C103,C107,C113,C117

C141,C142

C141,C142    ⒃

C159

C146,C147

N101

N101    ⒄

N101    ⒄

N101    ⒄

N101    ⒄

N102

N102    ⒅

N104

N106

VD101~VD107

VD111,VD112,VD113,VD114

VD10

V150,V151

V105,V115,V120,V130

- 114 -

MATERIAL

CODE

0780026 TRIODE

MATERIAL NAME

0780138 TRIODE

0780070 TRIODE

0780255 TRIODE

0780257 TRIODE

0780072 TRIODE

0780021 TRIODE

0780258 TRIODE

0780275 TRIODE

0780274 TRIODE

1564209 PCB

1940003 SOCKET

1940040 SOCKET

1940155 SOCKET

2120267 FLATCABLE

2121182 FLATCABLE

2121183 FLATCABLE

3580085 HEAT RADIATION BOARD

3580092 HEAT RADIATION BOARD

3580118 BIG HEAT RADIATION BOARD

2300005 FUSE

3870057 FUSE HOLDER

3870603 PCB BRACKET

4000516 SELF-TAPPING SCREW

4000453 SELF-TAPPING SCREW

4000462 SELF-TAPPING SCREW

3870950 IC PRESSING PIECE

4450012 BOLT PAD

4490001 SPRING PAD

5230395 INSULATED SPACER SET

5232281 INSULATED SPACER SET

8050D

2SA1964E

2SA940

KSA940

2SC5248E

2SC2073

KSC2073

2SD1047C

2SB817C

2N5551

SPECIFICATIONS

4225T-0

4P 2.5mm

3P 3.96mm

9P 3.96mm

XS7

XS5

XS8

4P140 2.5 2 SOCKET WITH NEEDLE XP6

5P 125 2.5 2 PIN,WITH NEEDLE,THE SAME

DIRECTION

XP13

7P 145 2.5 2 PIN,WITH NEEDLE,THE SAME

DIRECTION

XP9

15.4×10.7×45 AV220

14×8×16 AV130

261×50×100 AV228

T6.3AL 250V FL101,FL102

FL101,FL102

LOCATION

V102~V104,V106~V107,V114,V117~

V119,V121~V122,V129

V101,V116,V131

V133,V135

V133,V135    ⒆

V133,V135    ⒆

V132,V134

V132,V134    ⒇

V132,V134    ⒇

V112,V127

V113,V128

AV130

PT 3×12H WHITE NICKEL

BT 3×8H WHITE NICKEL

BT 3×6H WHITE NICKEL

AV228

F 3×7.2×0.5

F 3

F 3×6×3

F 3×6×3.2

- 115 -

MATERIAL

CODE

MATERIAL NAME

5230979 MICA PAD

5230928 MICA PAD

5231418 MICA PAD

5232006 SOFT SPONGE SPACER

6.8 SURFACE CONTROL BOARD

AV225T(RU) 5448203

28×22×0.1

18×13×0.1

22×22×0.1

SPECIFICATIONS

80×12×1.5 SINGLE-FACED,SOFT

2100003 CONNECTED CORDS

0000133 CARBON FILM RESISTOR

0000137 CARBON FILM RESISTOR

0000338 CARBON FILM RESISTOR

0000129 CARBON FILM RESISTOR

0000488 CARBON FILM RESISTOR

0000556 CARBON FILM RESISTOR

0000599 CARBON FILM RESISTOR

0200062 PORCELAINCAPACITOR

0200310 POLYPROPYLENECAPACITOR

0200138 PORCELAINCAPACITOR

0210147 TERYLENECAPACITOR

0210025 TERYLENECAPACITOR

0260025 CD

0882135 IC

F 0.6 SHAPED 7.5mm

1/6W4.7K±5% SHAPED 7.5

1/6W10K±5% SHAPED 7.5

1/6W15K±5% SHAPED 7.5

1/6W1K±5% SHAPED 7.5

1/6W220O±5% SHAPED 7.5

1/6W47O±5% SHAPED 7.5

1/6W1O±5% SHAPED 7.5

50V 151±10% 2.5mm

50V 103±10% SHAPED 5mm

50V 104±20% 5mm

100V 473±10% 5mm

100V 473±5% 6mm

CD11 16V47U±20%5×11 2

SN74HC245DW SOP

0882134 IC

0882088 IC

0880220 IC

0570006 DIODE

0780032 TRIODE

0780138 TRIODE

0630003 EMISSION PIPE

SN74AHC245DW SOP

74AHC245D SOP

PT2222 SOP

1N4148

9014C

8050D

TSAL6200

0970003 CERAMIC RESONATOR 455E

1350090 POWER SUPPLY SWITCH @PS4D-A-062 VDE

1340003 LIGHT TOUCH RESTORE SWITCH HORIZONTAL 6×6×1

2121085 FLATCABLE 2P270 7.92 1 PIN

- 116 -

LOCATION

W1~W12

R105

R101

R104

R106

R107

R102,R103

R100

C100,C101

C109

C102,C103

C105,C106

C105,C106    (21)

C104,C107,C108,C110

N102,N103

N102,N103

N102,N103    (22)

N101    (23)

VD101~VD109

V101

V100

VD100

G100

S100~S111

MATERIAL

CODE

MATERIAL NAME

2121387 FLAT CABLE

2121388 FLAT CABLE

2360011 IR SENSOR

3027993 LCD SCREEN BRACKET

0620126 LED GROUND LIGHT SOURCE

SPECIFICATIONS

8P 150 2.5 2 PIN,WITH L

NEEDLE,TOGETHER DIRECTION

9P 150 2.5 2 PIN,WITH L

NEEDLE,TOGETHER DIRECTION

HS0038A2

AV228 BLACK

QBL04021A-09 73×33

1200566 LCD SCREEN SCREEN JCM12864V 58×28

5233838 PYROCONDENSATION SLEEVE @F 22 UL

5232576 SOFT SPONGE SPACER

1563092 PCB

6.9 VIDEO INPUT OUTPUT BOARD

AV225T(RU) 5447611

11×11×11 DOUBLE-FACED,HARD

6228-1

0260027 CD

0260028 CD

0880271 IC

0881428 IC

0780043 TRIODE

0000599 CARBON FILM RESISTOR

0000120 CARBON FILM RESISTOR

0000122 CARBON FILM RESISTOR

0000140 CARBON FILM RESISTOR

0000137 CARBON FILM RESISTOR

0200174 PORCELAINCAPACITOR

1940006 SOCKET

1910239 TERMINAL SOCKET

1564056 PCB

6.10 MICROPHONE HOLDER BOARD

AV225T(RU) 5448204

2100003 CONNECTED CORDS

0000133 CARBON FILM RESISTOR

0000137 CARBON FILM RESISTOR

0000140 CARBON FILM RESISTOR

0000144 CARBON FILM RESISTOR

CD11 16V100U±20%6×12 2.5

CD11 16V220U±20%6×12 2.5

CD4051 DIP

CD4051BE DIP

2SA1015

1/6W1O±5% SHAPED 7.5

1/6W22O±5% SHAPED 7.5

1/6W100O±5% SHAPED 7.5

1/6W22K±5% SHAPED 7.5

1/6W10K±5% SHAPED 7.5

50V 103±10% 2.5mm

6P 2.5mm

AV3-8.4-14/ES-10

C110T-2

F 0.6 SHAPED 7.5mm

1/6W4.7K±5% SHAPED 7.5

1/6W10K±5% SHAPED 7.5

1/6W22K±5% SHAPED 7.5

1/6W47K±5% SHAPED 7.5

- 117 -

XP102

XP103

N100

LOCATION

TC101

TC103,TC104

N101

N101    (24)

V101

R108

R103

R101,R102,R104,R105

R106

R107

C101,C102,C103

XS101

XC101

W1,W2,W3

R103,R104

R107,R108

R100

R101,R102,R105,R106,R109,R110

MATERIAL

CODE

MATERIAL NAME

0200174 PORCELAINCAPACITOR

0260019 CD

0260027 CD

0260214 CD

0881537 IC

2110329 LEAD

2150164 FLAT CABLE

1940066 SOCKET

1980006 MICROPHONE SOCKET

1980030 MICROPHONE SOCKET

1564231 PCB

6.11 POWER BOARD

AV225T(RU) 5448205

2100003 CONNECTED CORDS

2100004 CONNECTED CORDS

2100007 CONNECTION CORDS

2100008 CONNECTION CORDS

2100017 CONNECTED CORDS

0000129 CARBON FILM RESISTOR

0000137 CARBON FILM RESISTOR

0000144 CARBON FILM RESISTOR

0000146 CARBON FILM RESISTOR

0000289 CARBON FILM RESISTOR

0000294 CARBON FILM RESISTOR

0000301 CARBON FILM RESISTOR

0000302 CARBON FILM RESISTOR

0000305 CARBON FILM RESISTOR

0000476 CARBON FILM RESISTOR

0000499 CARBON FILM RESISTOR

0000622 CARBON FILM RESISTOR

0200138 PORCELAINCAPACITOR

0200174 PORCELAINCAPACITOR

SPECIFICATIONS

50V 103±10% 2.5mm

CD11 16V10U±20%5×11 2

CD11 16V100U±20%6×12 2.5

CD11 16V330U±20%8×12 3.5

TDA1308 SOP

22# 70mm BLACK,WITH WELD PIECE

4P250 2.5T2 2P SHIELD,WITH

NEEDLE,DISTANCE MAGNETISM LOOP

200

5P 2.5mm STRAIGHT CURVING

CK3-6.35-106

CK3-6.35-19

9215T-2

F 0.6 SHAPED 7.5mm

F 0.6 SHAPED 10mm

F 0.6 SHAPEN 15mm

F 0.6 SHAPEN 6mm

F 0.6 SHAPED 20mm

1/6W1K±5% SHAPED 7.5

1/6W10K±5% SHAPED 7.5

1/6W47K±5% SHAPED 7.5

1/6W100K±5% SHAPED 7.5

1/4W4.7K±5% SHAPED 10

1/4W10K±5% SHAPED 10

1/4W47K±5% SHAPED 10

1/4W51K±5% SHAPED 10

1/4W100K±5% SHAPED 10

1/6W56K±5% SHAPED 7.5

1W4.7O±5% SHAPED R 15×9

2W22O±5% SHAPED R 20×8

50V 104±20% 5mm

50V 103±10% 2.5mm

XP12

XP24

X100

MIC1

LOCATION

C100,C101

C103,C104,C105

C102

C106,C107

N100

W14,W16,W17,W22

W7,W8,W10,W11,W1,W2,L102,L103

,L104,W13

W5,W12,W15,W4,W9,W19

W20,W21

W18,W3,W6

R101,R102

R104,R105

R103

R107

R106

R109

R118~R120

R116,R117

R108

R110

R111~R115

R100

C122

C121,C112,C123,C126

- 118 -

MATERIAL

CODE

MATERIAL NAME

0210022 TERYLENECAPACITOR

0210029 TERYLENECAPACITOR

0210031 TERYLENECAPACITOR

0210213 TERYLENECAPACITOR

0200378 CERAMIC CAPACITOR

0260028 CD

0260039 CD

0260452 CD

0260572 CD

0570004 DIODE

0570006 DIODE

0570020 DIODE

05800069 VOLTAGE REGULATOR DIODE

0780032 TRIODE

0780033 TRIODE

0780138 TRIODE

1250025 RELAY

0410007 INDUCTOR COIL

2120535 FLATCABLE

2121040 FLATCABLE

1940037 SOCKET

1940074 SOCKET

2010003 CONNECTION POLE SOCKET

2010004 CONNECTION POLE SOCKET

2300051 FUSE

2300008 FUSE

3020402 FUSE HOLDER

3870057 FUSE HOLDER

3540076 SCREEN-SHIELDED PIECE

3870591 GROUNDING PIECE

5180263

NOT DMETAL OXIDE FILM

RESISTOR GLUE LABELL

5180388

NOT DMETAL OXIDE FILM

RESISTOR GLUE LABELL

T6.3AL250V 18×3

SPECIFICATIONS

100V 223±5% 5mm

100V 104±5% 7mm

100V 224±10% 8mm

100V 224±5% 8mm

@400VAC 472 ±10% 10mm VDE

CD11 16V220U±20%6×12 2.5

CD11 25V47U±20%5×11 2

CD11 35V220U±20% 8×14 3.5

CD293 63V15000u±20%35×70 10

1N4004

1N4148

1N5404

5.1V±5% 1/2W BELT

9014C

9015C

8050D

JH1806-012-(3H1+1Z1) DC12V

0.7UH SC-0.8×8.0×11.5

4P60 2.5 2 SOCKET WITH NEEDLE

9P60 3.96 1 PIN

4P 3.96mm

2P 7.92mm

WP4-10A

WP6-10A

@T6.3AL 250V VDE

T8AL 250V

BLX-2

0

AV100 OUTPUT SOCKET

AV100

T8AL 250V

- 119 -

LOCATION

C100,C101,C105,C111

C106,C107,C116~C120

C103,C104

C103,C104    (25)

C102

C113,C114

C115

C110

C108,C109

VD113

VD112,VD108,VD110

VD100~VD107

VD111

V100,V101,V102,V105

V103

V104

Y100

L100,L101

XP7

XP8

XS4

XS1~XS3

XL100

XL101

FL100

FL101,FL102

FL100

FL101,FL102

MATERIAL

CODE

1564105 PCB

MATERIAL NAME

6.12 REMOTE CONEROLLER

AV225T(RU) 5471647

0000599 CARBON FILM RESISTOR

0200062 PORCELAINCAPACITOR

0880220 IC

0570006 DIODE

0780138 TRIODE

0630003 EMISSION PIPE

4000258 SELF-TAPPING SCREW

SPECIFICATIONS

@5100-5 CQC

1/6W1O±5% SHAPED 7.5

50V 151±10% 2.5mm

PT2222 SOP

1N4148

8050D

TSAL6200

BB 2.3×8 BLACK

0970003 CERAMIC RESONATOR

5070698

5156245

GLUE BAG FOR

ENVIRONMENTAL PROTECTION

(WITHOUT HOLE)

SURFACE STICKER OF REMOTE

CONTROL

4630759

CONDUCT GLUE OF REMOTE

CONTROL

455E

90×255×0.05 PE

AV225T(RU)

AV215T(RU)

1561893 PCB 8213-0

6.13 PANEL UNITS

AV225T(RU) 5462310

3072242 GLASS

3003011 PANEL

3027985 RIGHT COVER BOARD

3072003 LEFT COVER BOARD

AV225T(RU) TRANSPARENCE

AV215T(RU) SUB-LIGHT BLACK

AV228 SILVER

AV225T(RU) AETHER SILVER

3027989 DECORATIVE BOARD AV228 SILVER

3029042 POWER PRESS BUTTON BOARD AV215T(RU) SILVER

3027988 POWER BUTTON AV228 BLACK

AV228 SILVER 3027992 FUNCTION PRESS-BUTTON

3029043

DECORATIVE BOARD OF

FUNCTION PRESS-BUTTON

3810047 RESET SPRING

3870960 SWITCH LOCK CLASP

AV215T(RU) SILVER

AV228 STAINLESS STEEL

AV228 BLACK

3871101 MIC BRACKET

4000048 SELF-TAPPING SCREW

5232707 SOFT SPONGE SPACER

AV215T(RU)

PB 3×8 COLOR ZINC

AV228 SINGLE-FACED,HARD

- 120 -

LOCATION

R800

C801,C802

N800

VD800~VD802

V800

LED800

G800

MATERIAL

CODE

MATERIAL NAME

5232532 3M DOUBLE-FACE GLUE 65×46 AV228

SPECIFICATIONS

5232675 SOFT SPONGE SPACER 8×8×6 SINGLE-FACED,HARD

5448203 PCB SEMI-FINISHED PRODUCT 6228-1 AV225T(RU)

5448204 PCB SEMI-FINISHED PRODUCT 9215T-2 AV225T(RU)

6.14 SOFEWARE PROGRAM

AV225T(RU) 890283

0882087 IC

5156400 SIGN STICKER

6.15 SN LASEL

AV225T(RU) 5142076

SM79164C25P DIP

CPU225TRU-0

5142067 SN LABELL

6.16 SUPPLEMENT MODULE

AV225T(RU)

5110002 ELECTRO WELDING WIRE

5110018 ELECTRO WELDING WIRE

5110004 ADHESIVE TAPE

5110003 ELECTRO WELDING WIRE

RUSSIA WITHOUT BAR CODE NUMBER

F 1.0

f 2.0

5120096 PEANUT OIL

5120001 THINNER

5120004 SOLDERING FLUX

5120011 WIPING WATER

5120012 RED GLUEWATER

5120332

SILICONE GREASE HEAT

CONDUCT OIL

5120067 GLUEWATER

5230021 SCOTCH TAPE

GB-304

502

12mm

5230022 SEALING PAPER

5233436 SEALING PAPER

5231514

HIGH TEMPERATURE MASKING

PAPER

5231454

5231455

5231456

HIGH TEMPERATURE MASKING

PAPER

HIGH TEMPERATURE MASKING

PAPER

HIGH TEMPERATURE MASKING

PAPER

COLORLESS

LENGTH:39M WIDTH:60MM COLORLESS

16X

LENGTH:15 YARD WIDTH:20mm

LENGTH:15 YARD WIDTH:6mm

LENGTH:15 YARD WIDTH:12mm

LENGTH:15 YARD WIDTH:24mm

N100

LOCATION

- 121 -

MATERIAL

CODE

MATERIAL NAME

2100002 CONNECTION CORDS

5120013 YELLOW GLUEWATER

5120007 BLACK GLUE

5180452 QA ENVELOPCASE STICKER

F 0.6

SPECIFICATIONS

3M4799#

QA PASS 110×45

LOCATION

- 122 -

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Key Features

  • 5.1 channel output
  • LCD screen with 16 spectrum display styles
  • Built-in tuner
  • Separate 6CH volume and level controls
  • 7-band electronic equalization
  • Bass enhancer, Cyber logic, Hi-Fi playback functions
  • Q-play for movie, music, and Karaoke
  • Multiple EQ modes for different music styles
  • Auto spectrum analysis compensation
  • Karaoke features: MIC volume control, tone adjustment, voice compensation, delay and echo adjustment, wide sound field

Related manuals

Frequently Answers and Questions

What are the different input options available for the AV225T?
The AV225T has 4 input options: tuning input, VCD and DVD stereo input, and 5.1CH input.
How do I use the Cyber Logic function on the AV225T?
The Cyber logic function on the AV225T allows you to create simulated surround sound from a two-channel audio source. It processes the left and right channel signals to create a simulated center, surround left, surround right, and subwoofer signal.
How can I adjust the sound field settings on the AV225T?
The AV225T has three sound field modes: standard, Cyber Logic, and Hi-Fi. You can select the desired sound field mode using the corresponding buttons on the remote control.
What is the purpose of the Hi-Fi playback function on the AV225T?
The Hi-Fi playback function on the AV225T allows you to enjoy music in its original form without any additional processing or effects. It is designed to retain the original sound quality and nuances of the music.
How do I use the Karaoke feature on the AV225T?
The AV225T has a comprehensive Karaoke feature. You can adjust the microphone volume, tone, voice compensation, delay, and echo effects. You can also enable the Karaoke wide sound field function for a more immersive experience.
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