Sharp CD-K477W Service manual

CD-K477W

SERVICE MANUAL

No.S8869CDK477W/

CD-K477W

CP-K477, CP-SW477, CENTER(GBOXS0015AWM2) and Surround (GBOXS0016AWM2) speaker system

Constibute CD-K477W

• In the interests of user-safety the set should be restored to its original condition and only parts identical to those specified be used.

Manufactured under license from Dolby Laboratories Licensing Corporation.

DOLBY, the double-D symbol and "PRO LOGIC" are trademarks of Dolby Laboratories Licensing Corporation.

CONTENTS

Page

SAFETY PRECAUTION FOR SERVICE MANUAL ........................................................................................................... 2

VOLTAGE SELECTION ...................................................................................................................................................... 2

SPECIFICATIONS ............................................................................................................................................................. 3

NAMES OF PARTS ........................................................................................................................................................... 4

OPERATION MANUAL ...................................................................................................................................................... 8

DISASSEMBLY ................................................................................................................................................................ 10

REMOVING AND REINSTALLING THE MAIN PARTS ................................................................................................... 13

ADJUSTMENT ................................................................................................................................................................. 14

NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 18

TYPES OF TRANSISTOR AND LED ................................................................................................................................ 18

BLOCK DIAGRAM ........................................................................................................................................................... 19

SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD ............................................................................................. 22

WAVEFORMS OF CD CIRCUIT ...................................................................................................................................... 49

TROUBLESHOOTING ..................................................................................................................................................... 50

FUNCTION TABLE OF IC ................................................................................................................................................ 54

FL DISPLAY ..................................................................................................................................................................... 61

REPLACEMENT PARTS LIST/EXPLODED VIEW

This document has been published to be used for after sales service only.

The contents are subject to change without notice.

CD-K477W

SAFETY PRECAUTION FOR SERVICE MANUAL

WARNINGS

THE AEL (ACCESSIBLE EMISSION LEVEL) OF THE LASER POWER OUTPUT IS LESS THAN CLASS 1 BUT THE LASER

COMPONENT IS CAPABLE OF EMITTING RADIATION EXCEEDING THE LIMIT FOR CLASS 1. THEREFORE IT IS

IMPORTANT THAT THE FOLLOWING PRECAUTIONS ARE OBSERVED DURING SERVICING TO PROTECT YOUR EYES

AGAINST EXPOSURE TO THE LASER BEAM.

1-WHEN THE CABINET IS REMOVED, THE POWER IS TURNED ON WITDOUT A COMPACT DISC IN POSITION AND THE

PICK-UP IS ON THE OUTER EDGE THE LASER WILL LIGHT FOR SEVERAL SECONDS TO DETECT A DISC. DO NOT

LOOK INTO THE PICK-UP LENS.

2-THE LASER POWER OUTPUT OF THE PICK-UP UNIT AND REPLACEMENT SERVICE PARTS ARE ALL FACTORY

PRE-SET BEFORE SHIPMENT.

DO NOT ATTEMPT TO RE-ADJUST THE LASER PICK-UP UNIT DURING REPLACEMENT OR SERVICING.

3-UNDER NO CIRCUMSTANCES STARE INTO THE PICK-UP LENS AT ANY TIME.

4-CAUTION-USE OF CONTROLS OR ADJUSTMENTS, OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE

SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.

CAUTION

Laser Diode Properties

Material: GaAIAs

Wavelength: 780 nm

Emission Duration: continuous

Laser Output: max. 0.6 mW

●

This Mini Component System is classified as a CLASS

1 LASER product.

●

The CLASS 1 LASER PRODUCT label is located on the rear cover.

●

Use of controls, adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.

As the laser beam used in this compact disc player is harmful to the eyes, do not attempt to disassemble the cabinet. Refer servicing to qualified personnel only.

CAUTION-INVISIBLE LASER RADIATION WHEN OPEN. DO NOT STARE INTO

BEAM OR VIEW DIRECTLY WITH OPTICAL INSTRUMENTS.

VARNING-OSYNLIG LASERSTRALNING NAR DENNA DEL AR OPPNAD. STIRRA

EJ IN I STRALEN OCH BETRAKTA EJ STRALEN MED OPTISKA INSTRUMENT.

ADVERSEL-USYNLIG LASERSTRALING VED ABNING. SE IKKE IND I

STRALEN-HELLER IKKE MED OPTISKE INSTRUMENTER.

VARO! AVATTAESSA OLET ALTTIINA NAKYMATON LASERSATEILYLLE.

ALA TUIJOTA SATEESEEN ALAKA KATSO SITA OPTISEN LAITTEEN LAPI.

VARNING-OSYNLIG LASERSTRALNING NAR DENNA DEL AR OPPNAD.

STIRRA EJ IN I STRALEN OCH BETRAKTA EJ STRALEN GENOM OPTISKT

INSTRUMENT.

ADVERSEL-USYNLIG LASERSTRALING NAR DEKSEL APNES. STIRR IKKE

INN I STRALEN ELLER SE DIREKTE MED OPTISKE INSTRUMENTER.

VARO !

Avattaessa ja suojalukitus ohitettaessa olet alttiina näkymättömälle lasersäteilylle. Älä katso säteeseen.

VARNING!

Osynlig laserstralning när denna del är öppnad och spärren är urkopplad. Betrakta ej strälen.

VOLTAGE SELECTION

The voltage selector is located on the AC voltage selector box. If adjustment is necessary, use a screwdriver in order to turn the selector in either direction until the correct voltage figure is displayed in the window next to the adjustment screw.

QACCA0001AW00

QACCJ0003AW00

QACCE0008AW00

QACCL0005AW00

Figure 2 AC POWER SUPPLY CORD AND AC PLUG ADAPTOR

– 2 –

CD-K477W

SPECIFICATIONS

●

General

Power source:

Weight:

AC 110/127/220/230-240 V,

50/60 Hz

Power consumption:

190 W

Dimensions:

Width; 270 mm (10-5/8")

Height; 316 mm (12-1/2")

Depth; 343 mm (13-1/2")

10.2 kg (22.5 lbs.)

●

Compact disc player section

Type:

Signal readout:

3-disc multi-play compact disc player

Non-contact, 3-beam semiconductor laser pickup

D/A converter:

1-bit D/A converter

Frequency response:

20 - 20,000 Hz

Dynamic range:

90 dB (1 kHz)

●

Amplifier section

Output power:

Output terminals:

Input terminals:

PMPO; 1600 W

(Front)

MPO; 182 W (91 W + 91 W)

(10 % T.H.D)

RMS; 100 W (50 W + 50 W)

(10 % T.H.D)

(Centre)

MPO; 49 W (10 % T.H.D)

RMS; 25 W (10 % T.H.D)

(Surround)

MPO; 49 W (total) (10 % T.H.D)

RMS; 25 W (total) (10 % T.H.D)

(Sub woower)

MPO; 91 W (10 % T.H.D)

RMS; 50 W (10 % T.H.D)

Front speakers; 8 ohms

Centre speaker; 8 ohms

Surround speakers; 16 ohms

Sub woofer; 8 ohms

Headphones; 16-50 ohms

(recommended; 32 ohms)

CD digital output (optical)

Video/Auxiliary (audio signal)

×

2; 500 mV/47 kohms

Microphone 1/2; 1 mV/4.7 kohms

●

Front speaker section

Type:

3-way type [130 mm (5-1/8") woofer, 50 mm (2") tweeter and super tweeter]

Maximum input power:

Impedance:

Dimensions:

Weight:

100 W

8 ohms

Width; 190 mm (7-1/2")

Height; 316 mm (12-1/2")

Depth; 264 mm (10-7/16")

3.0 kg (6.6 lbs.)/each

●

Centre speaker section

Type:

Maximum input power:

Impedance:

Dimensions:

Weight:

100 mm (4") woofer

50 W

8 ohms

Width; 262 mm (10-5/16")

Height; 145 mm (5-3/4")

Depth; 201 mm (7-15/16")

1.4 kg (3.1 lbs.)

●

Surround speaker section

Type:

Maximum input power:

Impedance:

Dimensions:

Weight:

100 mm (4") woofer

25 W

16 ohms

Width; 170 mm (6-3/4")

Height; 123 mm (4-7/8")

Depth; 176 mm (6-15/16")

0.7 kg (1.5 lbs.)/each

●

Tuner section

Frequency range:

FM; 88 - 108 MHz

SW2; 9.5 - 21.85 MHz

SW1; 3.2 - 7.3 MHz

MW; 531 - 1,602 kHz

●

Cassette deck section

Frequency response:

50-14,000 Hz (Normal tape)

Signal/noise ratio:

55 dB (TAPE 1, playback)

50 dB (TAPE 2, recording/

Wow and flutter:

playback)

0.15 % (WRMS)

●

Sub woofer section

Type:

Maximum input power:

Impedance:

Dimensions:

Weight:

160 mm (6-1/2") woofer

100 W

8 ohms

Width; 220 mm (8-11/16")

Height; 316 mm (12-1/2")

Depth; 294 mm (11-5/8")

3.8 kg (8.4 lbs.)

– 3 –

CD-K477W

CD-K477W

■

Front panel

1 1.

(CD) Disc Tray

1 2.

(CD) Disc Number Select Buttons

1 3.

(CD) Disc Skip Button

1 4.

(CD) Open/Close Button

1 5.

Dolby Pro Logic Indicator

1 6.

(CD) Disc Number Indicators

1 7.

(TAPE 2) Direction Indicators

1 8.

(TAPE 2) Reverse Mode Indicator

1 9.

(CD) Play Indicator

10.

(CD) Repeat Indicator

11.

(CD) Pause Indicator

12.

(TAPE 2) Record Indicator

13.

Timer Record Indicator

14.

Timer Play Indicator

15.

4-Speaker Indicator

16.

Sleep Indicator

17.

Extra Bass Indicator

18.

Random Play Indicator

19.

(CD/TUNER) Memory Indicator

20.

(TUNER) FM Stereo Indicator

21.

(TUNER) FM Stereo Mode Indicator

22.

Spectrum Analyzer

23.

Function Selector Buttons

24.

Surround Mode Selector Buttons

25.

Extra Bass Button

26.

Volume Control

27.

On/Stand-by Button

28.

Headphone Socket

29.

Karaoke Maker Switch

30.

Microphone Sockets

31.

Microphone Level Controls

32.

Digital Echo Control

33.

Equalizer Selector/Demo Mode Button

NAMES OF PARTS

1

23

34.

Clock Button

35.

Sleep Button

36.

(TAPE 2) Reverse Mode Button

37.

(CD) Pause Button

38.

Jog Dial

39.

(CD/TAPE) Stop Button

40.

(TAPE) Record Pause Button

41.

Sub Woofer Level Control Buttons

42.

Timer Button

43.

Memory Button

44.

(CD) Clear Button

45.

(CD) Track Down/Review Button

3

(TAPE 2) Fast Wind Button

3

(TUNER) Tuning Down Button

46.

(TAPE 2) Reverse Play Button

47.

(CD) Play/Repeat Button

3

(TAPE 1) Play Button

3

(TAPE 2) Forward Play Button

48.

(CD) Track Up/Cue Button

3

(TAPE 2) Fast Wind Button

3

(TUNER) Tuning Up Button

49.

Editing Speed Selector Buttons

24

27 28 29

5

2

9 10 11 12

13 14 15 16 17

20 21 22

30

6 7 8

31

3 4

25 26

32

34 35 36 37 38 39 40 41

18

19

33

– 4 –

42 43 44 45 46 47 48 49

1 1.

(TAPE 1) Cassette Compartment

1 2.

(TAPE 2) Cassette Compartment

1

2

CD-K477W

■

Rear panel

1 1.

CD Digital Output Socket

1 2.

Video/Auxiliary (Audio Signal) Input Sockets

1 3.

Span Selector Switch

1 4.

FM 75 Ohms Aerial Terminal

1 5.

Aerial Earth Terminal

1 6.

SW1/SW2/MW Aerial Terminal

1 7.

AC Voltage Selector

1 8.

AC Power Lead

1 9.

Front Speaker Terminals

10.

Sub Woofer Terminals

11.

Surround Speaker Terminals

12.

Centre Speaker Terminals

1 2 3

4

5

6

7

8

FRONT

SPEAKERS

RIGHT LEFT

SUB

WOOFER

RATED SPEAKER IMPEDANCE:

8 OHMS MIN.

9 10

SURROUND

SPEAKERS

RIGHT LEFT

CENTER

SPEAKER

RATED SPEAKER

IMPEDANCE:

16 OHMS MIN.

RATED SPEAKER

IMPEDANCE:

8 OHMS MIN.

11 12

– 5 –

CD-K477W

CP-K477

■

Front speaker

1 1.

Super Tweeter

1 2.

Tweeter

1 3.

Woofer

1 4.

Bass Reflex Ducts

1 5.

Speaker Terminals

CP-SW477

■

Sub woofer

1 1.

Woofer

1 2.

Bass Reflex Ducts

1 3.

Speaker Terminals

GBOXS0015AWM2

■

Centre speaker

1 1.

Woofer

1 2.

Speaker Wire

GBOXS0016AWM2

■

Surround speaker

1 1.

Woofer

1 2.

Speaker Wire

3

4

1

2

1

2

1

2

1

2

3

5

– 6 –

■

Remote control

1 1.

Remote Control Transmitter LED

1 2.

Surround Mode Selector Buttons

1 3.

Test Tone Button

1 4.

Sub Woofer Level Control Buttons

1 5.

Centre Level Buttons

1 6.

Surround Level Buttons

●

Tuner control section

1 7.

Preset Up/Down Buttons

●

CD control section

1 8.

Track Up/Cue Button

1 9.

Track Down/Review Button

10.

Memory Button

11.

Disc Skip Button

12.

Stop Button

13.

Play/Repeat Button

14.

Pause Button

15.

Clear Button

16.

Random Button

●

Tape control section

17.

(TAPE 2) Record Pause Button

18.

(TAPE 2) Reverse Play Button

19.

(TAPE 1/2) Stop Button

20.

(TAPE 1) Play Button

3

(TAPE 2) Forward Play Button

21.

(TAPE 2) Fast Wind Button

●

Common section

22.

Extra Bass Button

23.

Equalizer Mode Button

24.

Function Selector Buttons

25.

Balance Control Buttons

26.

On/Stand-by Button

27.

Volume Up/Down Buttons

28.

Dimmer Button

1

CD-K477W

2

3

4

7

22

23

24

25

26

8

9

10

5 6

15 16

17 18 19 20

11

12

13

14

21

27

28

– 7 –

CD-K477W

SETTING THE CLOCK

CLOCK

ON/STAND-BY

MEMORY

2

3

4

5

6

7

8

9

TUNING

( )

0:00 AM 12:00 AM 0:00

OPERATION MANUAL

In this example, the clock is set for the 24-hour

(0:00) system.

Jog dial

1

Press the ON/STAND-BY button to enter the stand-by mode.

2

Press the CLOCK button.

3

Within 5 seconds, press the MEMORY button.

4

Turn the jog dial to select the time display mode.

"0:00"

→

The 24-hour display will appear.

(0:00 - 23:59)

"AM 12:00"

→

The 12-hour display will appear.

(AM or PM 12:00 - 11:59)

"AM 0:00"

→

The 12-hour display will appear.

(AM or PM 0:00 - 11:59)

●

Note that this can only be set when the unit is first installed or it has been reset (see page 34).

5

Press the MEMORY button.

6

Adjust the hour by turning the jog dial.

●

When the jog dial is turned one click clockwise, the time will increase by 1 hour. When it is turned one click anti-clockwise, the time will decrease by 1 hour.

Keep turning the jog dial to change the time continuously.

●

When the 12-hour display is selected, "AM" will change automatically to "PM".

7

Press the MEMORY button.

8

Adjust the minutes by turning the jog dial.

●

When the jog dial is turned one click clockwise, the time will increase by 1 minute. When it is turned one click anti-clockwise, the time will decrease by 1 minute.

Keep turning the jog dial to change the time continuously.

●

The hour setting will not advance even if minutes advance from "59" to "00".

9

Press the MEMORY button.

●

The clock starts operating from "0" seconds. (Seconds are not displayed.)

Note:

●

In the event of a power failure or when the AC power lead is disconnected, the clock display will go out.

When the AC power supply is restored, the clock display will flash on and off to indicate the time when the power failure occurred or when the AC power lead was disconnected.

If this happens, follow the procedure below to change the clock time.

To change the clock time:

When the unit is in the stand-by mode:

①

Press the MEMORY button.

②

Perform steps 6 - 9 above.

When the unit is on:

①

Press the CLOCK button.

②

Within 5 seconds, press the MEMORY button.

③

Perform steps 6 - 9 above.

To see the time display:

Press the CLOCK button.

●

The time display will appear for about 5 seconds.

To change the time display mode:

①

Perform steps 1 - 2 in the section "RESETTING THE MICRO-

COMPUTER", on page 34.

②

Perform steps 1 - 9 above.

– 8 –

FM/MW (kHz)

– 9 –

CD-K477W

CD-K477W

DISASSEMBLY

Caution on Disassembly

Follow the below-mentioned notes when disassembling the unit and reassembling it, to keep it safe and ensure excellent performance:

1. Take cassette tape and compact disc out of the unit.

2. Be sure to remove the power supply plug from the wall outlet before starting to disassemble the unit.

3. Take off nylon bands or wire holders where they need to be removed when disassembling the unit. After servicing the unit, be sure to rearrange the leads where they were before disassembling.

4. Take suffcient care on static electricity of integrated circuits and other circuits when servicing.

CD-K477W

( B1 ) x2

ø3 x8mm

( A1 ) x2

ø3 x12mm

CD-K477W

STEP REMOVAL

PROCEDURE

FIGURE

1 Top Cabinet 1. Screw ..................... (A1) x4 10-1

2 Side Panel

(Left/right)

1. Screw ..................... (B1) x8

3 CD Player Unit/ 1. Turn on the power supply,

CD Tray Cover open the disc tray, take out

the CD cover, and close.

(Note 1)

2. Hook ....................... (C1) x3

3. Hook ....................... (C2) x2

4. Screw ..................... (C3) x1

5. Socket .................... (C4) x3

10-1

10-2

4 Rear Panel

5 Tuner PWB

6 Main PWB

2. Screw ..................... (D1) x14 10-2

1. Socket .................... (E1) x1 11-1

2. Screw ..................... (E2) x2

1. Flat cable ............... (F1) x2 11-1

2. Flat wire ................. (F2) x3

3. Socket ...................... (F3) x4

4. Screw ....................... (F4) x3

7

8

Karaoke PWB

Front Panel

1. Screw ..................... (G1) x3 11-2

1. Flat wire ................. (H1) x1 11-2

2. Screw...................... (H2) x2

9 Speaker Amp. PWB 1. Socket .................... (J1) x3

2. Screw ..................... (J2) x6

11-2

10 Power Supply PWB 1. Screw ..................... (K1) x6 11-3

11 Display PWB 1. Knob ....................... (L1) x2 11-4

2. Nut .......................... (L2) x1

3. Screw ..................... (L3)x12

12 CD Switch PWB 1. Screw ..................... (M1) x3 11-4

13 Headphones PWB 1. Screw ..................... (N1) x1 11-4

14 Tape Mechanism 1. Screw ..................... (P1) x6 11-4

15

16

Turntable

Disc Tlay

1. Screw ..................... (Q1) x1 11-5

2. Cover ..................... (Q2) x1

1. Screw ..................... (R1) x2 11-5

2. Guide ..................... (R2) x2

17 CD Servo PWB 1. Screw ..................... (S1) x1 11-6

(Note 2) 2. Socket .................... (S2) x4

18 CD Changer

Mechanism

1. Screw ..................... (T1) x4 12-1

19 CD Mechanism 1. Screw ..................... (U1) x1 12-1

Side Panel

(Right)

( B1 ) x4

ø3 x8mm

Rear Panel

( C4 ) x2

(D1) x1

ø3 x10mm

CD Player

Unit

( C4 ) x1

(D1) x1

ø3x10mm

(C2) x1

Pull

CD ServoPWB

CD Tray Cover

Hook

( C1) x3

1

Main PWB

Tuner PWB

( D1 ) x10

ø3 x8mm

Rear Panel

( C3 ) x1

ø3 x8mm

Figure 10-2

(D2) x2

ø3 x10mm

LOCK

LEVER

Figure 10-1

Top Cabinet

( A1 ) x2

ø3 x12mm

Side Panel

(Left)

( B1 ) x2

ø3 x8mm

1

2

( C2 ) x1

Front Panel

Note 1:

How to open the changer manually. (Fig. 10-3)

1. Then, turn fully the lock lever in the arrow direction through the hole on the loading chassis bottom in this state.

After that, push forward the CD player base.

Note 2:

After removing the connector for the optical pickup fromthe connector wrap the conductive aluminium foil around the front end of connector so as to protect the optical pickup from electrostatic damage.

– 10 –

Figure 10-3

(F2) x1

(F3) x2

(F2) x2

(F1) x2

(F4) x2

ø3x10mm

Front Panel

(F3) x2

(E1) x1

(F4) x1

ø3x10mm

Main PWB

SPEAKER

Tuner PWB

AMP. PWB

Figure 11-1

(E2) x2

ø3 x10mm

(G1)x2

ø3x10mm

Front Panel

Karaoke

PWB

(G1)x1

ø3x10mm

(J2)x5

ø3x10mm

( J1 ) x2

( H1 ) x1

CD Switch PWB

Front Panel

(M1)x3

ø3x10mm

(L3)x12

ø3x10mm

CD-K477W

(L1)x2

Washer

(L2)x1

Display

PWB

Headphones

PWB

Open

Tape Mechanism

(P1)x6

ø3x10mm

Figure 11-4

( Q1 ) x1

ø3 x10mm

( Q2 ) x1

(N1)x1

ø3x10mm

Cassette

Holder (Left/Right)

Turntable

Disc Tray

( R1 ) x1

ø3 x10mm

Power Supply PWB

( J1 ) x1

( J2 ) x1

ø3x10mm

Speaker Amp. PWB

( H2 ) x2

ø3x10mm

Figure 11-2

(K1)x4

ø4x8mm

(K1)x1

ø3x10mm

( R2 ) x1

( R1 ) x1

ø3 x10mm

CD Player Unit

( R2 ) x1

Figure 11-5

( S1 ) x1

ø3 x10mm

CD Servo PWB

( S2 ) x2

(K1)x1

ø3x8mm

Figure 11-3

( S2 ) x2

CD Player Unit

Figure 11-6

– 11 –

CD-K477W

( U1 ) x1

ø2.6 x10mm

Shift Lever

( T1 ) x4

ø3 x12mm

CD Changer

Mechanism

Net

(A1)x1

CP-K477

Front Panel

(A2)x1

Tweeter

CD Player Base

CD Mechanism

Be careful when installing the CD changer mechanism.

Install the CD changer mechanism on the CD player base after the shift lever has been set in the highest position.

Figure 12-1

Woofer

CP-K477

STEP REMOVAL

1 Front Speaker

PROCEDURE FIGURE

1. Net .......................... (A1) x1 12-2

2. Front Panel ............ (A2) x1

3. Screw ..................... (A3) x2

4. Screw ..................... (A4) x4

5. Screw ..................... (A5) x2

Super

Tweeter

(A5)x2

ø3x10mm

Tweeter

Screw driver

(A3)x2

ø3x10mm

CP-SW477

STEP REMOVAL

1 Sub woofer

PROCEDURE

1. Net .......................... (A1) x1

2. Duct Panel ............. (A2) x1

3. Screw ..................... (A3) x4

FIGURE

12-3

Note:

The center and rear speakers can be easily disassembled.

Therefore the disassembling method is not discribed.

For details refer to the disassembling drawing in the Parts

Guide.

CP-SW477

Net

( A1 ) x1

(A4)x4

ø4x12mm

Figure 12-2

( A3 ) x4

ø4 x16mm

Woofer

Woofer

( A2 ) x1

Figure 12-3

Screwdriver

– 12 –

REMOVING AND REINSTALLING THE MAIN PARTS

CD MECHANISM SECTION

Perform steps 1, 2, 3,15,16,17 and 19 of the disassembly method to remove the CD mechanism.

Loading / Up

/ Down Motor

How to remove the loading motor

(See Fig. 13-1)

1. Remove the screws (A1) x 2 pcs., to remove the loading motor.

Motor

PWB

CD-K477W

Figure 13-1

( A1 ) x2

ø2.6 x5mm

How to remove the pickup (See Fig. 13-2)

1. Remove the screws (B1) x 2 pcs., to remove the shaft (B2).

2. Remove the stop washer (B3) x 1 pc., to remove the gear

(B4).

3. Remove the pickup.

Note

After removing the connector for the optical pickup fromthe connector wrap the conductive aluminium foil around the front end of connector so as to protect the optical pickup from electrostatic damage.

( B1 ) x2

ø2.6 x6mm

Stop Washer

( B3 ) x1

Pickup

Shaft

( B2 ) x1

Gear

( B4 ) x1

CD Mechanism

Figure 13-2

– 13 –

CD-K477W

MECHANISM SECTION

•

Driving Force Check

Torque Meter

Play: TW-2412

Specified Value

Tape 1: Over 80 g

Tape 2: Over 80 g

ADJUSTMENT

TUNER SECTION

fL: Low-range frequency fH: High-renge frequency

• AM IF/RF

Signal generator: 400 Hz, 30%, AM modulated

•

Torque Check

Setting/

Adjusting

Parts

Torque Meter Specified Value

Test Stage Frequency

Frequency

Display

IF 450 kHz 1,602 kHz T351

Tape 1 Tape 2

MW Band —

Coverage

531 kHz

Play: TW-2111 30 to 60 g. cm 30 to 100 g.cm

(fL): T306

1.1 ± 0.1 V

Fast forward: TW-2231 — 50 to 100 g.cm

SW1 Band —

Coverage

3.2 MHz (fL): T307

2.0 ± 0.1V

Rewind: TW-2231 — 50 to 100 g.cm

•

Tape Speed

SW1 Band —

Coverage

7.3 MHz

Instrument

Connection

*1

*2

*2

(fH): TC305 *2

7.7 ± 0.2 V

Normal speed

Test Tape

MTT-111

Adjusting

Point

VRM01

Specified

Value

3,000 ±

30 Hz

Instrument

Connection

Speaker terminal

(Load resistance:

8 ohms)

SW2 Band —

Coverage

SW2 Band —

Coverage

MW

Tracking

990 kHz

SW1

Tracking

SW1

Tracking

3.9 MHz

7.1 MHz

SW2

Tracking

SW2

Tracking

21.45 MHz

9.5 MHz

3.9 MHz

7.1 MHz

21.45 MHz

(fL): T308

2.1 ± 0.1V

(fL): T303

(fH): TC303

11.65 MHz 11.65 MHz (fL): T304

(fH): TC302

*2

21.85 MHz (fH): TC304 *2

7.7 ± 0.2V

990 kHz T302 *1

*1

*1

*1

*1

*1. Input: Antenna, Output: TP302

*2. Input: Anetnna, Output: TP301

TAPE MECHANISM PWB

VRM01

FAS

SW

Figure 14-1

SWM1

TAPE

SPEED

– 14 –

CD-K477W

• FM RF

Signal generator: 1 kHz, 40 kHz dev, FM modulated

Test Stage Frequency

Band

Coverage

RF

—

Frequency

Display

87.5 kHz

Setting/

Adjusting

Parts

(fL): LT02

3.7 ± 0.1 V

LT01 98 MHz

10 - 30 dB

98 MHz

*1. Input: Antenna, Output: TP301

*2. Input: Anetnna, Output: Speaker Terminal

Instrument

Connection

*1

*2

• Setting the Test Mode

Keeping the PAUSE button and TUNER button pressed, turn on POWER. Then, the frequency is initially set in the memory as shown in Table. Call it with the PRESET button to use it for adjustment and check of tuner circuit.

Preset

No.

FM Preset

No.

MW Preset

No.

SW1

Preset

No.

SW2

1 87.50 MHz

2 108.00 MHz

3 90.00 MHz

6 531 kHz 11

7 1,602 kHz 12

8 603 kHz 13

3.2 MHz 16

7.3 MHz 17

9.5 MHz

21.85MHz

3.9 MHz 18 11.65 MHz

4 106.00 MHz 9 1,404 kHz 14 7.1 MHz 19 21.45 MHz

5 98.00 MHz 10 990 kHz 15 5.06 MHz 20 15.1 MHz

21 ~ 40

• FM Detection

Signal generator: 10.7 MHz, FM sweep

Test Stage

Frequency Frequency

Display

IF 10.7 MHz 98 MHz

Setting/

Adjusting

Parts

TT01

(Turn the core of transformer TT01 fully counterclock wise)

Instrument

Connection

*1

*1. Input: Antenna, Output: TP301

*2. Input: Anetnna, Output: Speaker Terminal

• FM Mute Level

Signal generator: 1kHz, 40 kHz dev., FM modulated

Frequency

98.00 MHz

(25 dBµV)

Frequency

Display

98.00 MHz

Adjusting

Parts

VR351 *1

Instrument

Connection

Input: Antenna

Output: Speaker

Terminal

*1. Adjust so that an output signal appears.

R357

TUNER PWB

T351

AM IF

SW1 Band

Coverage fL fH

FM Band

Coverage

FM IF FM RF

LT02

TT01

LT01

TP301

SW2 Tracking fH fL

VR351

T307 TC305

FM Mute

Level

T308 TC304

TC302

TC303

T304

T303

IC303

T302

T306

TP302 fL fH

SW2

Coverage

MW Band

Coverage

MW

Tracking fH fL

SW1

Tracking

SO301

ANTENNA

TERMINAL

Figure 15 ADJUSTMENT POINTS

– 15 –

CD-K477W

TEST MODE

• Setting the test mode

Any one of test mode can be set by pressing several keys as follows.

<REC. PAUSE> + <DISC. SKIP> + <POWER> TEST: CD operation test

• TEST mode

Function — CD test mode

Setting of TEST mode

Indication of CD TST mode (Fig. 16-1)

OPEN/CLOSE operation is manual operation.

IL is not performed.

The pickup can be moved by using the (

<MEMORY>

LASER ON

<MEMORY>

Tracking on the spot.

SERVO OFF PLAY

) or ( ) key.

<MEMORY>

Tracking on the spot.

SERVO ON PLAY

<STOP>

STOP

<PLAY> key input TOC. IL is performed, and the ordinary PLAY is performed.

If the following key is pressed during PLAY, it is possible to specify directly any Track No.

<Disc Number 1> key: Track 4

<Disc Number 2> key: Track 9

<Disc Number 3> key: Track 15

Note:

Only in STOP state it is possible to slide the pickup with the (

VOL. --- Last memory

BAL. --- CENTER

R.GEQ. --- FLAT

X-BAS --- OFF

) or ( ) key.

Canceling method - POWER OFF

Press <STOP> key.

Stop

Figure 16-1

CD SECTION

Since this CD system incorporates the following automatic adjustment function, when the pickup is replaced, it is not necessary to readjust it.

Since this CD unit does not need adjustment, the combination of PWB and laser pickup unit is not restricted.

• Automatic adjustment item

1. Focus offset (Fig. 16-2)

2. Tracking offset (Fig. 16-3)

3. E/F balance (tracking error balance) (Fig. 16-4)

4. RF level AGC function (HF level: constant)

5. RF level automatic follow-up of the tracking gain

This automatic adjustment is performed each time a disc is changed. Therefore,

each disc is played back using the optimal settings.

0.1s

0.50 V

IC1 20 FE

10ms

0.50 V

IC1 20 FE

FOCUS

OFF-SET

ADJUST

0.1s

0.50 V

IC1 7 TE

10ms

0.50 V

IC1 7 TE

TRACKING

OFF-SET

1 ADJUST

2

Figure 16-2

200 ms

1V/diV

IC 1 15

TO

TRACKING/

ERROR

BARANCE

1 ADJUST

Figure 16-3

Enlarged

View

TRACKING

OFF-SET

1

ADJUST

2

200 ms

1V/diV

IC 1 7

TE

2

Figure 16-4

– 16 –

CD-K477W

EXPLANATION OF DOLBY SURROUND PRO LOGIC AND EVALUATION METHOD

Outline

• Namely, two speakers are connected in parallel to one amplifier.

• In the Pro Logic BYPASS mode the amplifier for C-ch (center channel) and the amplifier for S-ch (surround channel) are in

MUTE state. The SP output is cut.

• State of element output and terminal output in specific mode

• In the normal mode of Pro Logic ON mode the amplifiers for

C-ch and S-ch are in operative state, so that the SP output appears.

• In the Phantom mode of Pro Logic ON mode the amplifier for

C-ch is in MUTE state, so that the SP output is cut. The amplifier for S-ch (surround) is in operative state, so that the

SP output appears

State of set Dolby Pro Logic

Output point Bypass mode

ICC01 12 pin L-out Output enabled state

11 pin R-out Output enabled state

ICC01 9pin C-out No output

Dolby Pro Logic On mode

Normal mode

Output enabled state

Output enabled state

Output enabled state

ICC01 10pin S-out No output

SP OUT L-ch Output enabled state

(TMV01)

SP OUT C-ch

R-ch Output enabled state

Output enabled state

Output enabled state

Output enabled state

No output in MUTE (Q604) state Output enabled state

(TMX11)

SP OUT S-ch

(TMX11)

No output in MUTE (Q603) state Output enabled state

Phantom mode

Output enabled state

Output enabled state

No output

Output enabled state

Output enabled state

Output enabled state

No output in MUTE (Q604) state

Output enabled state

Test tone output

• Pro Logic ON Normal mode

Press the remote control TEST TONE button.

→

Output of only L-ch

→

Output of only C-ch

↑

↓

Output of only S-ch

←

Output of only R-ch

The test tone (noise) is repeatedly output for output period

(2 sec).

In this case the following indication appears repeatedly.

→

TEST

→

L-ch

→

C-ch

↑

↓

S-ch

←

R-ch

• Pro Logic ON Phantom mode

Press the remote control TEST TONE button.

→

Output of only L-ch

→

Output of only R-ch

↑

↓

←

Output of only S-ch

The test tone (noise) is repeatedly output for output period

(2 sec).

In this case the following indication appears repeatedly.

→

TEST

→

L-ch

→

R-ch

↑

↓

←

S-ch

←

Relation between VIDEO IN input and output in Pro Logic

ON state

(1) L-ch/R-ch same phase input into VIDEO IN input jack in

VIDEO Function mode

Output point Normal mode

SP out L-ch Almost no output (only omitting component)

(TMV01) R-ch Almost no output (only omitting component)

(TMX11) SP out C-ch Input signal is output.

(TMX11) SP out S-ch Almost no output (only omitting component)

Output point Phantom mode

SP out

(TMV01)

L-ch Input signal is output.

R-ch Input signal is output.

(TMX11) SP out C-ch SP cut, no output

(TMX111) SP out S-ch Almost no output (only omitting component)

(2) L-ch/R-ch reverse phase input into VIDEO IN input jack in

VIDEO Function mode

(Reverse phase: Phase difference between L and R is 180°)

Output point

SP out

(TMV01)

L-ch

R-ch

Normal mode

Almost no output (only omitting component)

Almost no output (only omitting component)

(TMX11) SP out C-ch Almost no output (only omitting component)

(TMX11) SP out S-ch Input signal is output.

Output point Phantom mode

SP out

(TMV01)

L-ch Almost no output (only omitting component)

R-ch Almost no output (only omitting component)

(TMX11) SP out C-ch SP cut, no output

(TMX11) SP out S-ch Input signal is output.

• Accordingly, if you want to output signal waveform to C-ch SP out, give the same phase input into L-ch/R-ch INPUT in the

Pro Logic Normal mode.

If one of channels receives input, C-ch does not output. Only

L-ch or R-ch outputs.

• If you want to output signal waveform to S-ch SP out, you can use either Normal mode or Phantom mode. However, 180° reverse phase input must be given to L-ch/R-ch INPUT.

– 17 –

CD-K477W

REF. NO

SW1

SW2

SW3

SW4

SW991

SWD1

SWD2

SWD3

SWD4

SWD5

SWD12

SWD13

SWD14

SWD15

SWD16

SWD17

SWD19

SWD20

SWD24

SWD25

SWD27

SWD28

SWD29

SWD30

NOTES ON SCHEMATIC DIAGRAM

•

Resistor:

To differentiate the units of resistors, such symbol as K and

•

The indicated voltage in each section is the one measured by Digital Multimeter between such a section and the chas-

M are used: the symbol K means 1000 ohm and the symbol

M means 1000 kohm and the resistor without any symbol is sis with no signal given.

1. In the tuner section, ohm-type resistor. Besides, the one with “Fusible” is a fuse type.

•

Capacitor:

To indicate the unit of capacitor, a symbol P is used: this

( ) indicates AM

< > indicates FM stereo

2. In the main section, a tape is being played back.

3. In the deck section, a tape is being played back.

symbol P means micro-micro-farad and the unit of the

( ) indicates the record state.

4. In the power section, a tape is being played back.

capacitor without such a symbol is microfarad. As to electrolytic capacitor, the expression “capacitance/withstand voltage” is used.

(CH), (TH), (RH), (UJ): Temperature compensation

(ML): Mylar type

5. In the CD section, the CD is stopped.

•

Parts marked with “ ” ( ) are important for maintaining the safety of the set. Be sure to replace these parts with specified ones for maintaining the safety and performance of the set.

(P.P.): Polypropylene type

•

Schematic diagram and Wiring Side of P.W.Board for this model are subject to change for improvement without prior notice.

DESCRIPTION

OPEN/CLOSE

MECHA UP

DISC NUMBER

PICKUP IN

VOLTAGE SELECTOR

VOLUME JOG

JOG

X-BASS

PRE EQ

MENU

TUNING UP/CUE

STOP

NORMAL EDIT

HIGH EDIT

REC/PAUSE

F-PLAY

SUB WOOFER VOLUME UP

SUB WOOFER VOLUME DOWN

4SP-1

4SP-2

PHANTOM

NORMAL

BYPASS

TUNING DOWN/REWIND

POSITION

ON—OFF

ON—OFF

ON—OFF

ON—OFF

230-240V

ON—OFF

ON—OFF

ON—OFF

ON—OFF

ON—OFF

ON—OFF

ON—OFF

ON—OFF

ON—OFF

ON—OFF

ON—OFF

ON—OFF

ON—OFF

ON—OFF

ON—OFF

ON—OFF

ON—OFF

ON—OFF

ON—OFF

SWD51

SWD52

SWD53

SWD54

SWF2

SWM3

SWM4

SWM5

SWM6

REF. NO

SWD31

SWD32

SWD33

SWD34

SWD35

SWD36

SWD37

SWD38

SWD39

SWD40

SWD41

SWD42

SWD43

SWD48

SWD49

SWD50

DESCRIPTION

CD PAUSE

REVERSE MODE

R-PLAY

CLOCK

MEMORY

TIMER

SLEEP

CLEAR

VIDEO/AUX 1

VIDEO/AUX 2

TAPE 1/2

TUNER/BAND

CD

POWER

KARAOKE

DISC 1

DISC 2

DISC 3

DISC SKIP

OPEN/CLOS

SPAN SELECTOR

REC FWD

REC RVS

F.A.S

CAM

POSITION

ON—OFF

ON—OFF

ON—OFF

ON—OFF

ON—OFF

ON—OFF

ON—OFF

ON—OFF

ON—OFF

ON—OFF

ON—OFF

ON—OFF

ON—OFF

ON—OFF

ON—OFF

ON—OFF

ON—OFF

ON—OFF

ON—OFF

ON—OFF

50/9

ON—OFF

ON—OFF

ON—OFF

ON—OFF

FRONT VIEW

FRONT

VIEW

FRONT

VIEW

FRONT

VIEW

E C B

(S) (G) (D)

(1) (2) (3)

KTA1266 GR

KTA1270Y

KTA1271 Y

KTC3199 GR

KTC3203 Y

KRA102 M

KRA109 M

KRC102 M

KRC104 M

KRC107 M

2SC535 C

2SD468 C

2SC2878 A

B C E

(D) (G) (S)

(3) (2) (1)

2SD2012

2SB1375

SLR325 MG

SLR325 VR

KL052 UL

SLR505 MC

LMKD515B

Figure 18 TYPES OF TRANSISTOR AND LED

– 18 –

KV1236Z23

LVDD

VDD

VVDD

RVDD

XVDD

~

~

NC

SPO

FD

TO

SLD

SL+

SL–

DRF

CE

DAT

CL

Figure 19 BLOCK DIAGRAM (1/3)

– 19 –

CD-K477W

CD-K477W

SO301

ANTENNA

TERMINAL

FM

GND

SW1

SW2

MW

B.P.F

BFT01

T302

MW ANT.

T306

MW OSC.

JR11

AUX-1/

VCR-1

JR12

AUX-2/

VCR-2

L R L R

1

5

ICT01

TA7358AP

FM FRONT END

3 8

7

LT01 LT02

6

9

AMP

QT01

+B7 +B7

FM IF

TT01

CF351 X351

FM IF

CF302

AM IF

T351

FM IF IN

1 2

OUT

VR351

FM MUTE LEVEL

CF352

3

REG

AM

OSC

8 9

17 18 16

IN

GND VCC SD

IC303

LA1832 FM/AM IF+MPX

OUT

10

L R

FMOSC

Q364

Q365

T303

T304

SW1/SW2

ANT.

SW1/SW2

OSC.

T307

T308

AM IN

VOLTAGE

REGURATER

+B7

Q308

Q309

Q306

Q307

X352

4.5MHz

+B7

Q360

FM

FM +B

7

20

9

+B7

MW +B

Q362

+B7

15

OSC IC302

LC72131

PLL CONTROLLER

13

16 11 10 12

SW1 +B

Q363

+B7

SW2 +B

Q364

17

+5V

8

TUNE

TUNER MU

MUTING

Q353

Q354

ICH11(1/2)

BUFFER AMP.

NJM4558M

+B7

8

7

6

SPE1~5

1

4

2

ICH11(/2)

SPE IN

–B6

T1_RUN

T2_RUN

T2_A-FP

T2_B-FP

T1_CrO2

T2_CrO2

CAM_SW

TAPE SOLENOID

TAPE MOTOR

HIGH SPEED

TA_SPEED(M)

TA_BAIS

BEET CUT

TA R/P

TA_PB-EQ

REC_MUTE

TA_T1/T2

PB MUT

4

QG04

QU01

QU02

CD MUTE

+B7

14 34 56

VDD

CD

TAPE

TUNER

L

56

R 54

L

R

L

52

58

53

R 57

AUX2

AUX1

L

50

R

60

L

51

R 59

VOLUME

ICU

LC753

AUDIO PRO

GRAPHIC EQUALIZER

LVref RVref

27 21

OUT

49 62

L R

Vref

22

Vss

26

45 10 46 11 47 12

42

39

36

L

7

4

1

R

43

40

37

L

8

5

2

R

44

41

38

L

9

6

3

R

48 63

L

R

FROM CD UNIT

MM1

TAPE MOTOR

M

PHM1

SWM3

REC FWD

SWM6

CAM SW

SWM5

F.A.S.

SWM4

REC RVS

+B6

QL14

QL18

MOTOR

DRIVER

VRM1

TAPE SPEED

QL12

DRIVER

QL11

DRIVER

+B6

QL19

TAPE MOTOR

QL13

HI SPEED

SWITCHING

QL17

TA2F/R SPEED

SWITCHING

T2_RUN

T2 CrO2

QK15

QK16

T2_A_FP

CAM SW

T1/T2 CrO

2

T1/T2 PLAY

QG05

PB-EQ

SOLM1

SOLENOID

TAPE 1

PB HEAD

L-CH

R-CH

TAPE 2

REC/PB

HEAD

L-CH

R-CH

ERASE

HEAD

QK13

QK14

QL15

QL19

DRIVER

P.B

REC

P.B

REC/PB

QK03 QK05

QK04 QK06

QK17,QK18

AC BIAS

QK09

POP REDUCE 6

L REC

9

R REC

16

QK07

QK08

REF

+B7

14

13

12

QK10

SOLENOID

ICK01

AN7345K

PLAYBACKuRECORD AMP

L(T1)

R(T1)

1

24

L(T2)

R(T2)

2

23

P.B.

4

21

L

R

P.B

OUT

L NF

R NF

3

4

5

20

QK11

T1/T2

REC

NOR/

HIGH

15

H/N

T1/T2

19

7

18

L

REC-IN

R

L NF

8

17

R NF

10

11

T1/T2

HI SPEED

QK19

SWITCHING

REC

QK30

T2 CrO2

QK27

QK25

QD01

QD02

PB MUTE

MUTING

QK21

QK22

REC

MUTING

QK29

QK40

HI SPEED

QK28

LK04

BIAS OSC.

QK24

BAIS

SWITCHING

QK26

BAIS

SWITCHING

MIC2

MIC1

VOLTAGE

REGULATOR

MIC

Q631

+B7

VOICE CA

1

33

34

VCC

6

31

5

19

IC601

M65845FP

MIC AMP.

10

18

GND

IN

26

27

L

R

IN

OUT

29

28

L

R

OUT

25

VR602

MIC2 VOL

VR601

MIC1 VOL

VR603

DIGITL

ECHO

IN

L

R

3

5

+B7

8

4

1

OUT

L

7 R

R L

OUT

23 24

IN

L

45

R

46

IC

LV

DO

PRO

DEC

33

ICS03

NJM4565M

PRO LOGIC

AMP

Figure 20 BLOCK DIAGRAM (2/3)

– 20 –

CD-K477W

TO CD UNIT

RXD01

REMOTE

SENSOR

FLD01

FL DIPLAY

F1

F1

1

2

F2

F2

46

47

VF2

(AC)

VF1

(AC)

5 ~ 43 44 45

TUNER SD

+B3

33

~

45 47

~

50 52

~

71 73

~

75

TUNER MUTE

74

73 70 87 88 94 95 96 99 1 2 3 4 5 11 13 14 91 92 93 98 100

SPE1~5

19

23

T1_RUN

29

T2_RUN

30

T2_A-FP

31

T2_B-FP

T1_CrO2

PB MUT

32

33

T2_CrO2

TA_T1/T2

34

CAM_SW

REC_MUTE

35

SOLENOID

PE MOTOR

BEET CUT

37

GH SPEED

_SPEED(M)

TA_BAIS

38

39

40

41

TA R/P

TA_PB-EQ

36

42

43

44

45

46

ICF01

IX0235AW

64

~

66 83 84 54 85 86 80

6

COM

7

DAT

8

SCK

9

STB

10

DS RES

16

SYSTEM CONTROL

MICROCOMPUTER

72 71 69

68 97 61 81 67 79 47 24

26 27 49 50 51 52 75 76 77

17

53

55

58

59

60

+B3

+B4 (4V BACK UP)

VDD

VSS

18

56

90

15

57

89

12

RESET IN

+B4

RESET

QG01

78 82

SWF02

SPAN SELECTOR.

XF01

4.19MHz

28

SYSTEM STOP

STB

1

RES

1 2

DAT1

9 5

COM1

9 6

SCK

9 7

3

79

91

,

~

~

4

88

94

LEDD01~

LEDD21

MEMORY

BACK UP

QG02

QG03

ZDF01

P.FAIL DET

ICD01

IX0234AW

SYSTEM

MICROCOMPUTER

VSS VDD

15 89 18 46 72 90

VEE

51 17

+B6

+4.6V

UNSWITCH

+B2

+B3

+B2

–VP

16

14

13

28

27

21

26

KEY IN

XD01

4.19MHz

FAN SW

FAN CONT

SWD01 JOG SW

SWD02

JOG SW

KEY MATRIX

SWD03,SWD04

SWD12~SWD17

SWD19,SWD20

SWD24,SWD25

SWD27~SWD43

SWD48~SWD54

M901

FAN

MOTOR

QV20

QV21

M

H/P SW

E

+B7

ICU01

LC75396N

DIO PROCESSOR

EQUALIZER

24 23 25

1 47

12

8

5

2

R

44

41

38

L

9

6

3

R

L

IN

48 63 30 18

R

IN

L

45

R

46

R L CENTER OUT

OUT 23 24 9 22

ICS01

LV1035M

DOLBY

PRO LOGIC

DECORDER

33 42 8 18

+B7

OUT

20 28

OUT

31 L

17 R

37

DATA

38

CLK

36

ENABLE

ICP11

NJM4565M

+B7

BUFFER AMP.

–B6

SYSTEM

MUTE

Q913

QP11

QP12

SUB

WOOFER

MUTE

QR13

QR21

POSISTOR PROT

QV19

FRONT

RELAY

QV22

L R

AMP

IN

L

R

5

3

IN

5

POWER

3

8

4

-B6

7

1

OUT

L

R

8

4

7

1

OUT

CENTER

SURROUND

ICP12

NJM4565D

LOW BOOST

AMP.

ICR15

NJM4558M

BUFFER AMP.

6 (1/2)

QP13

QP16

7 2

8

(2/2)

4

VOLTAGE

REGURATER

+B7

AMP

OUT

1

ICP71-1

NJM4565M

BUFFER AMP.

+B7

IN

5

8

4

7

IN

1

OUT

17 18 19 8

ICP70

LC7536

ELECTRIC

VOLUME

VEE

10

VDD

13

VCC

21

–B6

6

L1dB

IN

5

L5dB

OUT

+B7

–B6

+B7

VOLTAGE

REGURATER

–B6

2

1

3

ICP71-2

NJM4565M

BUFFER AMP.

QR11

QR12

CENTER

SURROUND

MUTE

QX17

QX18

+B

IN

L 7

ICV01

STK407-270

POWER AMP.

18

IN

SUB

WOOFER

QV17

POSISTOR

6

–B

+B

11

IN

CENTER

SURROUND

14

10

5

ICX01

STK407-040

POWER AMP.

–B

+B

9

3

1

2

8

15

5

3 4

7

6

–B

–B

19

10

OUT

CENTER

SURROUND

D991

QV13

QV14

QY11

9

L

8

20

R

SUB

WOOFER

OUT

QX13

QX14

QV18

QX15

QX16

PROT

F995

T6.3A L 250V

RELAY

RLYV11

QV22

SUB

WOOFER

RELAY

RELAY

RLYY11

@ @ @ @

CENTER

SURROUND

(REAR)

RELAY

QX20

RELAY

RLYX11

–12V

QP17

Q907

SWITCHING

Q914

F996

T6.3A L 250V

T991

POWER

TRANSFORMER

230-240V

POWER

ON/STB

SWITCHING

+B2

+B6

+B7

+4.6V

UN-SWITCHED

+12V(MOTOR)

VOLTAGE

REGULATOR

+12V(ANALOG)

VOLTAGE

REGULATOR

Q903

VOLTAGE

REGULATOR

Q901

Q902

Q905

Q906

D990

F993

T3.15A L 250V

F994

T3.15A L 250V

F997

T2.5A L 250V

220V

127V

110V

+

–

–

+

+

–

+

–

+

–

SURROUND

L-CH

GND

+

–

JV91

HEADPHONES

L-CH

GND

GND

R-CH

SUB

WOOFER

GND

TMV01

SPEAKER

TERMINAL

CENTER

GND

SURROUND

R-CH

GND

TMV11

SPEAKER

TERMINAL

F991

T2.5A L 250V

SW991

VOLTAGE

SELECTOR

F990

T5A L250V

+B9

+7.3V(CD)

TO CD UNIT

Q904

SWITCHING

VOLTAGE

REGULATOR

Q908

Q909

F999

T500mA L 250V

D992~D995

Q951

VOLTAGE

REGULATOR

VF1

(AC)

VP VF2

(AC)

T.F

AC POWER SUPPLY CORD

AC 110/127/220

/230-240V

50/60HZ

Figure 21 BLOCK DIAGRAM (3/3)

– 21 –

CD-K477W

A

B

C

D

E

F

A

F

C

LT0H30M1

LD

K

E

B

LD

GND

MON

2200P

1M

2200P

1M

TR+

FO+

FO–

TR–

ACTUATOR

PICKUP UNIT

M1

SPINDEL

MOTOR

M2

SLED

MOTOR

M

+

–

+

M

–

SW4

PICKUP IN

K

E

A

B

F

CNS1B

5

4

3

2

1

6

5

4

3

2

1

6

5

4

3

2

1

5 K

4 E

3

A

2

B

1

F

CNS1A

1 K

2

3

A

B

4

5

E

F

1

2

3

4

5

1

TR–

2

TR+

3 FO+

4 FO–

5

GND

6 PD

7 VR

8 LD

TR–

TR+

FO+

FO–

GND

PD

VR

LD

1

2

3

4

5

6

7

8

1

2

3

4

5

TR–

TR+

FO+

FO–

GND

6

7

8

PD

VR

LD

1

2

3

4

5

6

7

8

6

5

4

3

2

1

6

5

SP+

4

SP–

3

SL+

SL–

2

1

PU-IN

C15

0.01

R2

1K +B

C1

47/16

LASER

DRIVER

C2

0.01

0V 5V

R1

10

Q1

KTA1266

C3

1/50

R46

560

C85

0.001

R45

4.7K

C29

4.7/50

C28

0.1

64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49

VCC

2.5V

1

FIN2

2.5V

2

FIN1

REF

RF

REF

NC 48

0V

TBC 47

FSC

46

2.5V

C4 0.1/50

TE

C54

0.001

R13 1K

R10

2.2K

C5

0.033

R11

6.8K

R12

100

C6

0.033

C7

0.1/50

2.5V

8

TESI

2.5V

9

SCI

C8 0.068

2.5V

10

TH

R14 27K

C9

0.047

R15

12K

C10

180P

2.5V

11

TA

2.5V

12

TD–

2.5V

13

TD

R16

3.3K

2.5V

3

E

2.5V

4

F

REF

FE1

REF

VCR

–+

DEF

HFL

FEBAL

FOSTA

TOSTA

CLK

CE

DGND

45

0V

R8

15K

2.5V

2.5V

5

6

2.5V

TB

TE–

7

TE

2.5V

14

JP

2.5V

15

TO

+–

REF

VCR

DRF

2FREQ

CL

REF

REF

– +

GEN

BAL

VCR

REF

HIST.COMP

SHOCK;WCOMP

REF

GEN

JP

WCOMP

REF

TO

FSC

GEN

REF

VCR

TGL1

THDL

+ –

THD

GL

LASER

IC1

LA9241M

FSTA

8/12CM

SERVO AMP.

SLOF

VCC

REF

+

-

REF

+–

+

-

PSTR

+–

REF

JP

REF

+

JP–

JP+

CV–

CV+

REF

OR

SLOF

DAT

REF

SLI

44

2.5V

R44

33K

P-ON RES

+ –

REF

RF

+ –

SLC

C27

0.001

43

2.5V

C26

0.033

R41

47K

R42

47K

C25

27P

RFS–

42

2.5V

C24

2.2P

RFSM

R40

5.6K

HF

R43

56K

R39

1K

R38

470

C23

0.0027

CV+

CV–

SLOF

HFL

TES

TOFF

TGL

JP+

40

0V

39

0V

38

5V

0V

37

0V

36

5V

35

34

5V

33

0V

C22

220P

REF

2.5V

16

FD

C12

0.1

R22

22K

17

R17 33K

R18 15K

R19

1K

C11

0.1

R23

10K

VREF

R24

47K

20 21 23 24 25 26 27

2.5V

C13

330P

R26

82K

C17

0.001

R30

6.8K

R25

1.5K

C14

0.01

R31

1.2K

C18

0.47/50

GND

C35

1/50

R37

82K

D1

1SS133

C36

100/16

2.5V

2.5V

1

2

0V 3

2.5V

2.5V

4

5

2V

2V

6

0V

7

8

0V

0V

9

10

0V

11

2V

12

2V

2.5V

13

2.5V

14

15

0V

4.7V

16

17

0V

+

STAND

BY

TSD

–+

+

IC3 M56748FP

FOCUS/TRACKING

/SPIN/SLIDE DRIVER

0V

36

0V

35

34

0V

32

2.5V

1.8V

1.8V

30

0V

29

0V

28

27

0V

26

0V

25

2V

24

2V

2.5V

23

2.5V

22

2.5V

21

20

4.7V

19

R48

10K

D2

RL104A

D3

RL104A

D4

RL104

CD MOTOR PWB-K

G

H

• NOTES ON SCHEMATIC DIAGRAM can be found on page 18.

1

2 3 4

Figure 22 SCHEMATIC DIAGRAM (1/18)

– 22 –

5 6

CD-K477W

29

/50

C28

0.1

R44

33K

C26

0.033

R41

47K

R42

47K

R40

5.6K

C25

27P

R43

56K

R39

1K

HF

R38

470

C23

0.0027

+B

C22

220P

C57

0.001

CD SIGNAL

+B

R57 1K

R58 1K

R59 1K

R60 1K

R61 1K

R62 1K

R63 1K

C38

0.01

64 63 62 61 60

59 58 57 56

55

54 53 52

TEST1

0V

C39 0.047

0V

R50

680

3

0V

R51 3.3M

C40

0.047

R52

27K

0V

2.2V

PDO

LC78622K

µ

-COM

INTERFACE

SERVO/SIGNAL

CONTROL

5

2K x8BIT

RAM

5V

ERROR CORRECT

FLAG CONTROL

R53

1.2K

1V

0V

2.5V

2.5V

8

9

CONTROL

0V

TEST2

SYNC-DETECT

EFM DEMODULATE

0V

CLV

0V

DIGITAL SERVO

5V

V/P

16

TES

SERVO

COMMAND

EXTERNAL

OUTPUT

51 50 49

SUB-CODE

EFLG

48

47

SBSY

XVSS 46

X-TAL

GENERATOR

4FS

DIGITAL

FILTER

XIN

45

XOUT

XVDD

44

43

C53

0.022

1BIT

DAC

MUTER

RVDD

41

40

RCHO

RVSS

39

LVSS

42

38

LCHO

37

LVDD

MUTEL

36

PCCL

35

34

TEST4 33

DIGITAL

OUT

C41

12P

C42

15P

R93 @ 220

D82

1SS133

D81

1SS133

C72

10/50

R72

2.7K

C43

330/6.3

R71

2.7K

C71

10/50

R74

560

R73

560

C74

0.001

C73

0.001

CNP11

+B

+B

5

6

CNSF11

FROM MAIN PWB

P24 1-B

17 18 19 20 21 22 23

24 25 26 27 28 29 30 31

32

R54

330

+B

DOUT

+4.3V

GND

CNPR11

TO MAIN PWB

P27 12-A

Q51

KRC107 M

3 2

1

C50

3.3/16

VOLTAGE

REGULATOR

Q52

KTC3203 Y

L61

0.82

µ

H

C51

100/16

R64

22

R66

330

+B

+B

D1

1SS133

R47

10K

C37

0.022

D3

RL104A

D4

RL104A

+B

IC81

TA7291S

LOADING

MOTOR DRIVER

1 2 3 4 5 6 7 8 9

C82

47/16

R83

3.9K

R85

56

R82

6.8K

R81

3.9K

R80

6.8K

Q93

KRC102 M

R87

10K

3

1

2

R86

2.2K

Q91

KTA1271 Y

D91

1SS133

+B

SOLM2

SOLENOID

LOCK

1

2

3

4

5

6

7

8

9

SOL

GND(M)

M–

M+

GND(D)

OPEN

/CLOSE

DISC NO.

GND(D)

MECHA UP

1

2

3

4

5

6

7

8

9

GND(D)

1

2

3

4

5

6

–

+

M3 T/T

UP/DOWN

M

LOADING

MOTOR

SW1

OPEN

CLOSE

SENSOR PWB-J

SW2

MECHA UP

1

2

CNS5

1

2

SW3

DISC NUMBER

CD SERVO PWB-B

CNSF12

FROM MAIN PWB

P24 1-D

• The numbers 1 to 12 are waveform numbers shown in page 49.

7

8 9 10

Figure 23 SCHEMATIC DIAGRAM (2/18)

– 23 –

11 12

CD-K477W

A

CNSD01

TO DISPLAY PWB

P32 1-D

10

9

8

7

6

5

4

3

2

1

GND(D)

GND(D)

+4.6V(D)

+12V(M)

COM1

RESET

DATA1

STB

SCK1

B

C

D

CNP11

TO CD SERVO PWB

P23 11-C

CD R-CH

GND(Au)

CD L-CH

GND(CD)

+7.3V(CD)

+12V(M)

1

2

3

4

5

6

RWC

WRQ

COIN

SQOUT

CQCK

RES

DRF

D_GND

SLD+

SLD–

PUIN

OP/CL

DISC_NO

UP/DOWN

CNP12

TO CD SERVO PWB

P23 8-H

8

9

10

11

5

6

7

1

2

3

4

12

13

14

12

13

14

8

9

10

11

5

6

7

1

2

3

4

1

2

3

4

5

6

+B

+B

0V

CG07

22/25

RG10

47K

RU95

2.2K

RU96

2.2K

0V

0V

0V

0V

+B

QG04

KTA1266 GR

CG08

0.001

+B

GND(CD2)

GND(CD1)

GND(D)

+7.3V(CD)

+12V(M)

+4.6V(D)

+B

+B

+B

+B

+4V(

µ

-CO

GND(

µ

-C

RG11

10K

CG61

0.022

RG24 10K

RG07 10K

RG06 10K

RG57 10K

RG58 10K

RG59 10K

RG23

10K

DG06

1SS133

SWF02

SPAN

SELECTOR

10/100

RG05

10K

9/50

RF80

1K

RF61

22K

RF51

1K

RF81

RF82

1K

1K

MIC_DET

81

H/P SW

82

S/N

83

SRS_A/NA

84

DOL_A/NA

S.W_ANA

85

86

80 79 78 77 76 7 5 74 73 72 71 70 69 68 67 66 65

PL1 (0V)

PL2 (4.0V)

PL3 (4.0V)

81

82

83

PL5 (0V)

PL4 (0V)

PL0 (0V)

87

P30

RF94 1K

RF95 1K

RF96 1K

RF97

88 P31

VSS

89 VSS3

VDD

90

CD UP/DOWN SW

CD DISC No.SW

91

92

CD OP/CL SW

93

VDD3

P32

P33 (4.0V)

P34

1K

94

95

96

CD MUTE

97

P35

P00

P01

P02 (8.8V)

98

99

100

98

99

100

P03 (4.0V)

P04

P05 (0V)

ICF01

64 63 62 61 60 59 58 57 56 55 54 53 52 51

50

FRNT_RLY

49

FAN CONT

IX0235AW

SYSTEM CONTROL

MICROCOMPUTER

50

49

48

PC4 (4.0V)

PC3

PC2

33

32

31

PA3 (4.0V)

PA2 (4.0V)

PA1 (4.0V)

(4.0V) PC1

(4.0V) PC0

PB7

(3.8V) PB6

PB5

(4.0V) PB4

(0V) PB3

(0V) PB2

(4.0V) PB1

PB0

(4.0V) PA7

(0V) PA6

(4.0V) PA5

(4.0V) PA4

48

47

AMP

46

PB_MUT

45

TA_T1/T2

44

REC_MUT

43

TA_PB_EQ

42

TA_R/P

41

BEAT_CUT

TA_BIAS

40

FR SPEED(M)

39

38

HIGH_SP

37

TA MOTOR

TAPE_SOL

36

35

CAM_SW

34

T2_CRO S

T1_CRO S

33

T2_B-FP S

32

31

T2_A-FP S

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

RF30

1K

RG16

47K

RG19

47K

RG26

10K

RG04 10K

RG38

100K

RG25

10K

GND(A)

+B +12V(A)

–15V –B

E

CL(

µ

CE(CE1)(

µ

GND(D)

CON SIDE DI)

DO

CON SIDE DO)

DI

+12V(A)

GND(A)

TUN MUTE

L-CH

R-CH

CNP303

TO TUNER PWB

P37 12-H

11

1

2

3

4

5

6

7

8

9

10

1

2

3

4

5

6

7

8

9

10

11

+12V(A)

GND(A)

+B

RG01

22K

F

G

H

M +12V

M_GND

TA_FR SPEED

TA_MOT2_W

TA_SOL

T2_A_FP

TA_CAM_SW

T1_RUN

1

2

3

4

5

6

7

T2_RUN

T2_B_FP

8

9

10

11

12

TA_T1/T2

PB_MUT

TA_BIAS

13

14

15

16

HIGH_SP

TA_R/P 17

REC_MUT 18

TA_PB_EQ

19

GND(BIAS)

+12V(A)

GND(A)

21

22

23

REC L-CH

REC R-CH

PRE L-CH

PRE R-CH

24

25

26

27

+B

+B

+B

+B

CH29

0.022

+B

RH11

22K

CH28

0.022

ICH11

NJM4558M

BUFFER

AMP.

2

–

3 +

(1/2)

8

4

RH12

1K

1

CH10

47P

6 –

5

+

(2/2)

RH13

820K

7

RH17

1.5K

RH20

1.5K

RH25

1.5K

RH30

1.5K

RH35

1.5K

CH16

1/50

+B

CH20

0.015

CH19

0.47/50

+B

CH23

0.0047

CH22

0.1

+B

CH26

0.0012

CH25

0.027

+B

CH13

330P

CH30

0.0056

+B

CH17

0.047

RH14

560K

RH15

33K

RH21

560K

RH22

33K

RH26

560K

RH27

33K

RH31

560K

RH32

33K

RH36

560K

RH37

33K

DH11

1SS133

CH15

0.22/50

DH12

1SS133

CH18

0.22/50

DH15

1SS133

CH27

0.22/50

DH13

1SS133

CH21

0.22/50

DH14

1SS133

CH24

0.22/50

DH16

1SS133

16KHz

SPE-1

RH16

1M

DH17

1SS133

63Hz

SPE-2

RH24

470K

DH18

1SS133

250Hz

SPE-3

RH29

1M

DH19

1SS133

1KHz

SPE-4

RH34

1M

DH20

1SS133

4KHz

SPE-5

RH39

1M

GND(A)

REC L-CH

REC R-CH

PRE L-CH

PRE R-CH

CH12

10/16

TUN L

TUN R

2

VID

TO

• NOTES ON SCHEMATIC DIAGRAM can be found on page 18.

1

2 3 4

Figure 24 SCHEMATIC DIAGRAM (3/18)

– 24 –

5 6

CD-K477W

+4V(

µ

-CON)

GND(

µ

-CON)

+4V

CD GND(D2)

CD GND(D1)

GND(D)

+7.3V(CD)

+12V(M)

+4.6V(D)

+B

+B

RG37

1K

DG05

1SS133

CG04

0.01

LG01

2.2

µ

H

QG01

KRC102 M

4.0V

2

1 0V

3

0V

CG03

3.3/50

CG02 0.01

QG02

KTC3199 GR

RG35

1K

4.0V

0V

0V

RG34

10K

0V

RG39

82

RG33

10K

4.0V

RG32

100

0.4V

QG03

KTC3199 GR

DG03

1SS133

RG31

1K

RESET

POINT

RG30

150

RG29

150

CG01

470/10

+4V

+B

+B

–B

40

41

42

43

CD GND(D2)

CD GND(D1)

GND(D)

44

45

+7.3V(CD)

+12V(M)

+4.6V(D)

46

47

48

49

AMP

SWF-MUTE

REAR-MUTE

CENT-MUTE

S-MUTE

50

51

52

S.W RLY(2)

CENT/REAR RLY(3)

53

54

55

56

57

58

SP PROT

POSISTOR

H/P SW

SP LEVEL

FAN CONT

FRNT RLY(1)

59 POWER

60

61

CL

DI

62

CE

63

64

GND(M)

+12V(A)

65

66

67

68

–15V

GND(BIAS)

GND(A)

GND(D3)

NT_RLY

N CONT

RF50 1K

RF49 1K

MP

B_MUT

A_T1/T2

EC_MUT

A_PB_EQ

A_R/P

EAT_CUT

A_BIAS

SPEED(M)

GH_SP

A MOTOR

PE_SOL

AM_SW

_CRO S

_CRO S

_B-FP S

_A-FP S

RF47 1K

RF46 1K

RG55 1K

RF44 1K

RF42 1K

RF41 1K

RF40 1K

RF39 1K

RF38 1K

RF37 1K

RF36 1K

RF35 1K

RF34 1K

RF33 1K

RF32 1K

RF31 1K

RG17 10K

RG20 10K

RG21 10K

RG22 10K

RG15

10K

QG05

KRC104 M

RF99

10K

6

26

K

+B

–B

FM SIGNAL

PLAYBACK SIGNAL

RECORD SIGNAL

CD SIGNAL

+B

69

70

71

72

C2B_CL

(

C2B_DI

CON SIDE DO)

PL_ENA

L CH OUT

73

R CH OUT

74

75

76

C OUT

S OUT

L CH IN

77

78

79

R CH IN

+12V(A)

GND(AU)

+B

–B

+12V(A)

–15V

REC L-CH

RU21

RU26

RU25

1K

1K

1K

REC R-CH

CU09

10/50

RU05

1.8K

CU45

1/50

CU57

2.2/50

CU58

2.2/50

RU03

15K

CU11

100P

48

49

LSELO

(5.0V)

AUX 2

CU35

2.2/50

50

L5

CU07 2.2/50

51

L4

CU05

2.2/50

52

L3

CU06 2.2/50

58 R3

(5.0V)

(5.0V)

(5.0V)

CU03 2.2/50

53 L2

RU93

CU01

1K

2.2/50

54

L1

(5.0V)

(5.0V)

55

VDD

(10.1V)

RU94

1K

CU02 2.2/50

CU04 2.2/50

56 R1

57 R2

(5.0V)

(5.0V)

(5.0V)

CU08 2.2/50

59 R4 (5.0V)

CU36 2.2/50

CU46

1/50

CU12

60

61

62

R5

(5.0V)

RINVIN1

(5.0V)

RSERO

(5.0V)

63

RTIN

(5.0V)

64

100P

RU04 15K

1

CU16

0.47/50

RU06

1.8K

CU10

10/50

CU15

0.47/50

CU17

0.18

(ML)

47

2

0.18

46

(ML)

3

CU18

45

4

CU22

0.18

(ML)

CU21

0.18

(ML)

44

5

43

6

CU24

0.15

(ML)

CU23

0.15

(ML)

CU25

0.22/50

42

7

41

8

40

9

CU28

0.027

CU27

0.027

RU22

CU29

0.015

ICU01

39

LC75396N

AUDIO PROCESSOR

10

CU30

0.015

38

11

37

12

CU32

0.0022

1K

36

13

CU34

0.0047

35

14

CU33 0.0047

34 33

CU39

10/50

(5.0V)

LFCOM

(5.0V)

LFOUT

32

31

CU42

10/50

(5.0V) LRIN

30

CU61

10/50

(5.0V) LRCOM

29

(5.0V) LROUT

28

CU52

10/50

(5.0V) LVref 27

(0.1V)

(0V)

VSS

CE

(CON SIDE DO)

(0V)

(0V)

DI

CL

(5.0V)

Vref

(0V) RVref

26

RU09 1K

25

24

RU10 1K

RU11 1K

23

22

CU43

47/16

21

15

(5.0V)

RROUT

20

CU40

10/50

16

RRCOM

(5.0V)

RRIN

(0V)

RFOUT

(5.0V)

19

18

17

CU62

10/50

CU41

10/50

CU51

10/50

CU55

47/16

CU64

0.022

CU63

100/16

DU02

1SS133

DU01

1SS133

RU02

470K

28 29

30

31 32 33

CU50

1/50

34 35

36

37 38

39

CU49

1/50

+B

RU23

1K

RU24 1K

CNPU02

5

6

7

3

4

8

9

1

2

V, CAN

OUT(L)

IN(L)

GND(A)

+12V(A)

OUT(R)

IN(R)

GND

MIC

FROM

KARAOKE PWB

P31 9-A

CNSU02

MAIN PWB-A(1/ 4 )

VIDEO1 IN VIDEO2 IN

TO PRE SECTION

P26 2 H

7

8

VOLUME

OUT

PROLOGIC

ONLY

TO PRE SECTION

P26 5-H

9 10

Figure 25 SCHEMATIC DIAGRAM (4/18)

– 25 –

11 12

CD-K477W

A

B

MAIN PWB-A (2/4)

FM SIGNAL

CR55

10/50

CR63

0.022

CR56

47P

0V

6

0V

5

10V

8

–

ICR15

(2/2)

+

4

–10V

–B

RR74

47K

0V

7

CR57

10/50

RR75

100K

CR64

0.022

C

D

FW901

FROM POWER PWB

P39 8-G

VF1

–38(VP)

VF2

1

2

3

WTP01

FWD02

FROM DISPLAY PWB

P321-B

VF2

–38(VP)

VF1

3

2

1

WTP02

E

RP85

82K

CP76

1/50

RP78

100K

CP77 1/50

0V

0V

2

–

ICP71

(2/2)

3

–10.9V

4

RP77

1M

CP73

0.022

1

0V

CP78

1/50

–B

+B

–B

15 14 13 12 11

10

9 8

7

6 5 4 3 2 1

ICP70

LC7536

ELECTRIC VOLUME

16 17 18 19

20

21 22 23 24 25 26 27 28 29 30

RP74

1K

CP70

1/50

0V

7

CP79

0.022

NJM4565M

BUFFER AMP.

5

0V

CP83

10/50

8

+

CP72

100P

ICP71

(1/2)

–

6

0V

CP71

47P

RP76

15K

RP75

100K

CP80

47/25

CP81

47/25

CP82

0.022

CP84

1/50

ZDP01

MTZJ4.7B

RR73

47K

RR86

470K

RR71

47K

C CH

CP42

2.2/50

RP52

100

RP33

1K

CP29

2.2/50

S CH

CP48

0.1(ML)

CP50

0.1(ML)

0V

5

RP64

8.2K

0V

6

RP65

2.2K

RP39

56K

RP35

100K

0V

2

0V

3

NJM456

BUFFER

RR72

47K

–B

L-CH

RP11

100

CP15

0.1(ML)

CP19

0.1(ML)

0V

5

RP17

8.2K

0V

6

RP15

100K

RP19

2.2K

RP20

2.2K

RP16

100K

RP12

100

R-CH

CP16

0.1

(ML)

RP18

8.2K

0V

2

–

CP20

0.1

(ML)

0V

3

+

–15V

+12V(A)

F

G

JR12

L-CH

INPUT

VIDEO/AUX-2

R-CH

JR11

L-CH

INPUT

VIDEO/AUX-1

R-CH

CR10 0.001

RR15

27K

RR16

27K

RR11

27K

RR12

27K

CR11

390P

CR12

390P

CR13

390P

CR14

390P

RR13

1.8K

RR14

1.8K

RR17

1.8K

RR18

1.8K

DR12

1SS133

30 2 28 33 32 31 60 61 62

VIDEO-1 VIDEO-2

TO MAIN SECTION

P25 7-H

TO MAIN

SECTION

P25 12-A

RP84

680

+B

H

• NOTES ON SCHEMATIC DIAGRAM can be found on page 18.

1

2 3 4

Figure 26 SCHEMATIC DIAGRAM (5/18)

– 26 –

5

RP09

100K

RP10

100K

39 37 36 35 34

38

TO MAIN SECTION

P25 10-H

6

CD-K477W

+B

RR78

47K

RR74

47K

0V

7

CR57

10/50

RR76

47K

RR75

100K

CR58 0.0056

RR77

47K 0V

2

CR59 47P

3

0V

CR60

0.0056

–

ICR15

(1/2)

+

1

0V

NJM4558M

BUFFER AMP.

RR79

1.8K

CR61

10/50

RR80

100K

CR64

0.022

–B

–B

CP50

0.1(ML)

RP64

8.2K

0V

0V

5

6

+

ICP12

(2/2)

–

–10V

4

7

0V

RP68

1K

CP52

10/16

RP67

100

RP69

8.2K

CP40

0.022

RP65

2.2K

CP51

100P

RP39

56K

CP85

0.001

0V

0V

2

3

–

ICP12

(1/2)

+

8

10V

NJM4565M

BUFFER AMP.

RP41

12K

1

0V

RP43

1K

RP45

8.2K

CP35

4.7/50

+B

CP39

0.022

QR21

KTC3199 GR

OUT3(S.W)

CR62

0.0022

RR82

4.7K

+B

S.W.MUTE

2 3

QR13

KRA107 M

1

CENTER

MUTE

CENTER MUTE

QR12

KRA107 M

1

REAR

MUTE

QR11

KRA107 M

1

QP16

C3199 GR

RP70

5.6K

CP53

0.001

GND(A)

CP37

0.001

QP13

C3199 GR

RP47

5.6K

REAR

MUTE

OUT4(CcH)

OUT5(Sch)

+B

DIGITAL-OUT

ICR11

GP1F38T

1

2

3

CR02

100/10

LR01

2.2

µ

H(DH)

CR01

0.022

RR01

100

ZDR01

MTZJ3.3B

CR03

0.001

2

1

3

CNPR11

DOUT

CNS99

+4.3V

GND

FROM

CD SERVO PWB

P23 11-D

CR17

4.7/50

RR21

47K

CR16

4.7/50

RR20

47K

CR15

4.7/50

RR19

47K

GND(A)

REAR RLY(3)

PROT

POSISTOR

AMP

+B

4

5

6

7

8

9

10

1

2

3

11

1

FWP02

1

OUT4(Cch)

GND(M)

OUT5(Sch)

+12V(M)

GND(A)

FAN SW

RELAY3

11 11

PROT

POSISTOR

AMP

CFWX11

TO

SPEAKER

AMP.1 PWB

P34 1-F

NJM4565M

BUFFER AMP.

CP19

0.1(ML)

0V

5

10V

+

8

ICP11

–

(1/2)

RP17

8.2K

0V

6

7

RP21

100

RP25

1K

0V

RP27

8.2K

CP23

10/16

RP19

2.2K

CP07 100P

CP27

0.022

QP11

KTC3199 GR

CP25 0.001

RP29

5.6K

CP09

100/16

RP20

2.2K

RP18

8.2K

CP20

0.1

(ML)

0V

0V

2

–

3

ICP11

+

(2/2)

4

–10V

CP08 100P

RP28

8.2K

RP22

100

1

0V

RP26

1K

CP24

10/16

–B

CP26 0.001

QP12

KTC3199 GR

RP30

5.6K

CP28

0.022

–B

+B

CP10

100/16

RP32

150

+B

OUT1(L-CH)

GND(A)

OUT2(R-CH)

RP31

150

–15V

+B

+12V(A)

GND(D)

RP73

22K

CP57

22/25

–B

50 42 65 64

H/P SW

PROT

AMP

OUT3(S.W)

RELAY2

OUT1(L-CH)

RELAY1

GND(A)

FAN CONT

OUT2(R-CH)

SP LEVEL

POSISTOR

+4.6V(D)

+B

+B

+B

–B

+B

48 49 47 52 51 58 57 56 55 53 54 46 44 63 45 66 43 41 59 66

1

3 2

QP17

KRC107 M

+B

11

12

13

14

15

16

5

6

7

8

1

2

3

4

9

10

1

FWP01

1

OUT3(S.W)

S.W RLY(2)

OUT1(FRONT L-CH)

FRNT RLY(1)

GND(A)

FAN CONT

OUT2(FRONT R-CH)

SP LEVEL

GND(M)

H/P SW

+12V(M)

FAN SW

CFWV11

TO

SPEAKER

AMP.2 PWB

P34 1-B

16 16

PROT

POSISTOR

AMP

4

5

6

7

8

9

1

2

3

10

11

–15V(A)

GND(A)

+12V(A)

+12V(M)

GND(M)

+4.6V(D)

GND(D)

+7.3V(CD)

CD GND(D1)

POWER

GND(D3)

CNS901

FROM POWER PWB

P38 1-H

TO MAIN SECTION

P25 12-B

7

12 8 9 10

Figure 27 SCHEMATIC DIAGRAM (6/18)

– 27 –

11

CD-K477W

A

B

C

TAPE MECHANISM ASSEMBLY

TAPE

MOTOR

MM1

M

SWM3

REC FWD

SWM6

CAM SW

SWM5

F.A.S

SOLM1

SOL

FWM2

SWM4

REC RVS

L

H

+

2

TAPE MICHANISM PWB–H

VRM1

3.3K(B)

RM1

2.7K

PHM1

L

H

MOT+B

REC FWD

CAM SW

M2GND

F.A.S

RUN PULSE

+B

SOL

REC RVS

10

11

7

8

9

1

2

3

4

5

6

12

13

FWM1

1

13

MOT L

MOT H

MOT +B

T2 A-FP

CUM SW

M2GND

T1 RUN-SW

T2 PH-OUT

+B

SOL

T2 B-FP

11

12

13

6

7

8

9

10

1

2

3

4

5

WTL11

PLAYBACK SIGNAL

RECORD SIGNAL

RL13

6.8K

QL11

KTA1266 GR

0V

0V

0V

RL12

2.2K

RL11

33K

0V

0V

0V

QL12

KTA1266 GR

RL14

33K

QL14

KTA1273 Y

12V

0V

RL15

10K

CL12

47/16

0V

QL15

KTA1271 Y

12V

RL17

10(1/2W)

0V

12V

RL18

10K

RL19

2.2K

QL13

KRC104 M

2

0V

3

4V

1

0V

RL16

2.2K

QL17

KRC104M

2 3

0V 4V

1 0V

QL18

KRC104 M

12V

0V

RL20

1.2K

DL13

1SS133

DL14

1SS133

DGND

RK33

22K

D

E

F

TAPE2

RECORD/

PLAYBACK HEAD

ERASE

HEAD

TAPE2 HEAD

PWB

3

4

1

2

5

6

G

TAPE1

PLAYBACK HEAD

L-CH

R-CH

3

2

1

CNSK01

3

2

1

CNPK01

7

6

5

4

3

2

1

7

6

5

4

3

2

1

CK01

680P

CK02

680P

CK05

330P

RK89

1K

QK03

2SC1845 F

QK05

2SC1845 F

0V

RK03

2.2K

0.7V

0V

0.7V

0V

RK05

3.3K

RK11

15K

CK06

330P

RK90

1K

QK06

2SC1845 F

QK04

2SC1845 F

0V

0V

0V

RK12

RK04

2.2K

REC

15K

0.7V

RK06

3.3K

0.7V

RK01

1K

RK02

1K

QK07

KTC3199 GR

0V

RK09

4.7K

0V

RK07

47K

0V

CK07

0.001

RK08

47K

RK10

4.7K

0V

0V

0V

QK08

KTC3199 GR

CK08

0.001

RK17

1K

RK18

1K

QK13

KRC104 M

3

2

1

RK27

8.2K

RK34

68K

RK47

10K

CK10

47/25

0V

1

24

0V

CK11

330P

RK19

56

CK15

47/16

0V

2

CK13

330P

3

RK21

100K

CK17

0.033

0.6V

–

+

RK23

3.9K

CK19

560P

CK21

1/50

112K

4

RK25

5.6K

CK23

0.1

3.0V

RK31

33K

CK35

0.022

CK25

0.0082

0V

5

RK29

10K

1.3V

19

RK39

560

RK37

6.8K

0V

7

CK31

270P

CK33

22/25

LK01

1.8mH

8

0.6V

–

+

5

HIGH=T1

HIGH=CHROME

+

-

112K

–

5

23

0V

22

0.6V

CK12

330P

CK14

330P

CK16

47/16

CK18

0.033

3.0V

21

CK22

1/50

CK20

560P

0V

20

RK30

10K

CK26

0.0082

CK27

0.022

RK26

5.6K

1.3V

6 18

0V

RK38

6.8K

CK28

3.3/25

CK32

270P

CK34

22/25

17

0.6V

LK02

1.8mH

RK40

560

RK20

56

CK36

0.022

RK22

100K

QK14

KRC104 M

3

RK24

3.9K

CK24

0.1

1

2

RK28

8.2K

RK32

33K

RK36

3.3K

CK30

470P

8.7V

8.7V

QK09

KTA1266 GR

RK13

10K

8.0V

REC

REC

CK09

0.022

0V

1

RK14

10K

0V 3.8V

QK10

KRC104 M

0V

QK11

KRC104 M

RK15

4.7K

CK60

100/16

RK69

220

H

• NOTES ON SCHEMATIC DIAGRAM can be found on page 18.

1

2 3 4

Figure 28 SCHEMATIC DIAGRAM (7/18)

– 28 –

5 6

TA2F/R SPEED

8

4 M

3

0V

V

2

12V

1

3 0V

QL19

KRC104 M

0V

RL24

3.3K

DL11

1SS133

CL13

3.3/50

0V

3

0V

1

2

4.1V

QL16

KRC107 M

TA_MOT2SW

M_12V

TA_SOL

T2_A_FP

TA_CAM_SW

M_GND

T1_RUN

T2_RUN

T2_B_FP

T1_CRO2

MAIN PWB-A(3/4)

3

TA_F/R SPEED

4 TA_MOT_SW

1

M_12V

5 TA_SOL

6

7

2

8

T2_A_FP

TA_CAM_SW

M_GND

T1_RUN

9 T2_RUN

10

11

12

T2_B_FP

T2 Cro2 H:Cro2

L: NORM

PB.MUTE

CK10

47/25

QK17

2SC2878 A

RK43

10K

CK43

0.022

QK18

2SC2878 A

RK48

10K

CK44

0.022

K33

/25

CK35

0.022

RK39

560

LK01

1.8mH

1

CK37

0.018

2

3

QK15

KRC104 M

RK41

82

CK39

0.0033

8

0.6V

1

2 3

QK19

KRC104 M

HI.SP

3.0V

9

CK41

47/25

0V

RK50

15

10K

CK46

220/10

CK45

22/25

3.7V

6.0V

14 13

CK47

0.022

–

+

56K

NOR/CrO 2

ROME

ICK01

–

AN7345K

56K

K34

/25

17

0.6V

LK02

1.8mH

RK40

560

CK36

0.022

CK40

0.0033

RK42

82

QK16

KRC104 M

2 3

CK38

0.018

1

16

3.0V

CK42

47/25

ALC

10

3.0V

RK46

10K

ALC GND

11

0V

12

0V

RK52

1K

HI.SP

13

TA T1/T2H:T1 L:T2

14

26

PB.MUTEH:ON L:OFF

PRE L-CH

16

27

HI. SP H:LOW L:HIGH

PRE R-CH

CK55

0.022

23 GND(A)

RK57

4.7K

RK58

470

CK62

0.047

RK66

27K

QK24

KTA1266 GR

RK60

270

RK61

270

LK03

1mH

RK62

47K

11.7V

11.6V

2

0V

BIAS

QK25

RK64

4.7K

KTA1266 GR

QK26

KRC104 M

1 0V

3

0V

RK63

10K

2

1

RK65

1K

3

QK27

KRC104 M

RK67

47K

CK50

0.0082(P.P)

CK51

0.027(ML)

0V

RK68

4.7

LK04

330 H

0V

0V

QK28

2SC2236 Y

CK52

47/16

QK22

KTC3199 GR

0V

0.7V

0V RK54

10K

0.7V

RK53

10K

QK40

KRC107 M

3

1

3

2

QK30

KRC104 M

1

RK81

6.8K

2

3

2

1

QK29

KRC107 M

RK75

82K

RK55

33K

RK74

82K

RK56

33K

0V

QK21

KTC3199 GR

0V

RK73

56K

RK72

56K

22

12V(A)

15

BIAS H:ON L:OFF

24

REC L-CH

25 REC R-CH

17

TA R/P @ H:PB L:REC

18

REC MUTE

19

21

TA PB EQ L:NORM

H:Cro2

GND(BIAS)

CD-K477W

7 8 9 10

Figure 29 SCHEMATIC DIAGRAM (8/18)

– 29 –

11 12

CD-K477W

A

MAIN PWB-A (4/4)

B

C

D

DC01 1N4004S

DC02 1N4004S

CC60 0.022

CC64 220/16

RC59

100K

RC60

100K

RC61

100K

RC62

100K

XLC01 8MHz

32 31 30 29

28

27 26 25 24 23 22 21 20 19

18 17

0V

33

3.9V

34

0V

35

VSS

CLK

DATA

CC75

680P

3.9V

36

0V

37

3.9V

38

0V

39

CC76

0.047(ML)

5.0V

40

5.0V

41

CC77 0V

42

0.022(ML)

CC78

0.47/50 5.0V

43

5.0V

44

CC81

47/16 5.0V

45

46

CC53

5.0V

0.1(ML) 5.0V

0.1V

47

48

ENABLE

DATA

CLK

OSC

NS-BPF2

NS-BPF1

GND

C-MODE

DC-OUT

LT-IN

RT-IN

L-BPF1

L-BPF2

CC51

0.1

(ML)

VREF

L-DC-OUT

49 50 51

52 53 54 55 56 57 58 59 60 61 62 63 64

S-IN

R-IN

L-IN

AC-GND

L-OUT

R-OUT

S-OUT

C-OUT

VCC

R-DC-OUT

C-DC-OUT

S-DC-OUT

R-BPF1

R-BPF2

5.0V

16

5.0V

15

5.0V

14

13

5.0V

12

5.0V

5.0V

11

5.0V

10

9

8

5.0V

10.0V

RC51 18K

CC63 220/16

CC62

10/50

RC18 3.6K

7

RC17 3.3K

5.0V

6

5.0V

5

5.0V

4

5.0V

3

5.0V

2

5.0V

1

5.0V

CC55 10/50

CC56 10/50

CC57 10/50

CC58 10/50

CC54

CC59

220/16

0.1(ML)

5.0V

CC52 0.1(ML)

E

F

G

RC19 2.2K

RC20 2.2K

CC79 10/50

RC07 4.7K

CC80 10/50

CC07 47P

CC47 47/25 CC09 0.022

+12V

0V

6.0V

CC48 47/25

RC01 220K

RC03 1K

ICC02 (1/2)

CC03 47P

6.0V

RC05 8.2K

CC05 47/25

CC08 47P

RC08 4.7K

ICC02 (2/2)

CC06 47/25

RC06 8.2K

6.0V

6.0V

CC04 47P

RC04 1K

CC01 2.2/50

RC02 220K

CC02 2.2/50

FM SIGNAL

H

TO MAIN SECTION

P25 12-D

• NOTES ON SCHEMATIC DIAGRAM can be found on page 18.

1

2 3 4

Figure 30 SCHEMATIC DIAGRAM (9/18)

– 30 –

5 6

KARAOKE PWB-J

TO MAIN PWB

CNPU02

P25 12 - E

+B

FM SIGNAL

GND(D)

+B

DIGITL

ECHO

VR603

20K(B)

R669

220

R670

220

C677

47/25

ZD631

MTZJ5.6B

VOLTAGE

REGULATOR

Q631

KTC3203 Y

R668

1.2K

6.4V

4.7V

5.4V

R667

100

C674

47/25

C673

0.022

C672

47/25

R618 15K

C632

100/10

C631

0.022

CD-K477W

7

8 9 10

Figure 31 SCHEMATIC DIAGRAM (10/18)

– 31 –

11 12

CD-K477W

FM SIGNAL

A

HP-LCH

GND(A)

HP-RCH

GND(M)

5

WTV11

TO SPEAKER

AMP.2 PWB

P35 11-D

H/P SW

1

FWV91

RV91

220

X2

JV91

HEADPHONE

5

RV92

220

CV91

100

2.2

LV91

µ

H(XH)

CV92

100

1

HEADPHONES PWB-C3

B

WTP02

TO MAIN PWB

P26 1-E

3

1

3 VF2

–38(VP)

1

VF1

C

D

GND(D)

+4.6V(D)

+12V(M)

COM1

RESET

DATA1

STB

SCK1

CNPF01

FROM MAIN PWB

P24 1-A

10

9

8

7

6

5

4

3

2

1

+B

+B

+B

LEDD20

KL052UL

RD54

1.2K

QD07

KRC107 M

2 3 R-PLAY

1

LEDD21

SLR505MC

2 3 REW

RD55

820 1

QD08

KRC107 M

E

1 2 3 4

+B

CD28

1/50

LEDD14

SLR325MG

LEDD16

SLR325VR

+B

(YELLOW)

F-PLAY

(YELLOW)

STOP

(GREEN)

FF

(YELLOW)

PAUSE

LEDD05

SLR325MG

LEDD07

SLR325VR

LEDD08

SLR325MG

LEDD10

SLR325VR

LEDD11

SLR325MG

LEDD01

KL052UL

LEDD02

KL052UL

LEDD03

SLR505MC

RD49

1.2K

2

RD48

1.2K

2

2

1

3

1

3

1

LEDD04

KL052UL

RD50

820

2

LEDD06

SLR325MG

RD51

1.2K

2

1

3

3

3

RD52

560

2

RD53

1K

1

1

3

QD05 KRC107 M

QD06

KRC107 M

RD04 1K

QD01

KRC107 M

QD02

KRC107 M

QD03

KRC107 M

QD04

KRC107 M

RD03

1K

LEDD09

SLR325MG

SLR325MG

LEDD13

LEDD12

SLR325VR

RD05 1K

RD06 1K

RD07 560

RD08 1K

RD09 560

RD10 1K

RD02

1K

RD01

1K

80 79 78 77 76 7

FF

81

PAUSE

82

83

84

85

PG1

(0V)

PG2 SRS-G

(4.0V)

PG3 SRS-R (0V)

81

86

87

P00 PHANT-G (0.6V)

P01 PHANT-R (10.8V)

P02 VIRTUAL-G (–6V)

P03 VIRTUAL-R (10.8V

88

VSS

89

VDD

90

VSS2 (0V)

VDD2 (4.1V)

RD11 560

RD12 1K

RD13 560

RD14 1K

91

92

93

P04 NORMAL-G (0.6V

P05 NORMAL-R

(10.8

P06 STEREO-G (9.0V

RD15 1K

RD16 1K

RD17 1K

DATA1

94

95

COM1

96

SCK1

97

P07 STEREO-R (0.4V

SO0 (0V)

SI0 (0V)

SCK0 (4.0V)

98 SO1 (0V)

100

99 SI1 (0V)

100

LEDD15

SLR325MG

STROBE

1 2 3 4 5

LEDD17

SLR325VR

LEDD18

SLR325MG LEDD19

SLR325MG

RD19

1K

+B

RD21

1K

RD22

1K

CD10

220/6.3

CD11

0.022

2

RD57

39

1

3

RXD01

REMOTE

CONTROL

SENSOR

CD09

150P

DD01

1N4004S

DD02

1SS133

RD58

100K

RD59

100K

CD05

0.001

F

G

+B

SWD04

PRE EQ.

RE02

1K

SWD03

X-BASS

SWD20

SUB WOOFER

VOLUME DOWN

RE19

27K

SWD19

SUB WOOFER

VOLUME UP

RE18

12K

RE17

5.6K

SWD17

F-PLAY

RE16

3.9K

SWD16

REC/PAUSE

RE15

2.2K

SWD15

HIGH EDIT

RE14

1.8K

SWD14

NORMAL EDIT

RE13

1.2K

SWD13

STOP

RE12

1K

SWD12

TUNING UP/CUE

SWD29

BYPASS

RE29

27K

SWD28

NORMAL

RE28

12K

SWD27

PHANTOM

RE27

5.6K

RE26

3.9K

SWD25

4 SP-2

RE25

2.2K

SWD24

4 SP-1

RE24

1.8K

RE23

1.2K

RE22

1K

SWD38

CLEAR

RE39

27K

SWD37

SLEEP

RE38

12K

SWD36

RE37

5.6K

SWD35

TIMER

MEMORY

RE36

3.9K

SWD34

CLOCK

RE35

2.2K

SWD33

R-PLAY

RE34

1.8K

SWD32

REVERSE

MODE

RE33

1.2K

SWD31

CD

PAUSE

RE32

1K

SWD30

TUNING DOWN

/REWIND

KEY

RE0

8.2K

KEY

RE1

8.2

RE2

8.2

KEY

RE3

8.2

KEY

H

• NOTES ON SCHEMATIC DIAGRAM can be found on page 18.

1

2 3 4

Figure 32 SCHEMATIC DIAGRAM (11/18)

– 32 –

5 6

CD-K477W

FLD01

FL DISPLAY

4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47

+B

76 75 74 73 72

81

PG0 (0V)

.6V)

0.8V)

–6V)

(10.8V)

(0.6V)

(10.8V)

(9.0V)

(0.4V)

100 SCK1 (0V)

71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52

ICD01

IX0234AW

50 S19 (–30V)

SYSTEM MICROCOMPUTER

31 S1

(0V)

51

–29(VP)

(–21V) S18

(–30V) S17

(–26V)

S16

(4.0V) VDD3

(–29V) S15

(–29V) S14

(–29V) S13

(–29V) S12

(–29V) S11

(–29V) S10

(–29V) S9

(–29V) S8

(–29V)

S7

(–29V) S6

(–29V) S5

(–29V) S4

(–29V) S3

S2

(–29V)

32

31

50

S24

S25

49

48

S26

47

S27

46

VDD

45

G1

44

G2

43

G3

42

G4

41

G5

40

G6

39

G7

38

G8

G9

37

G10

36

35

G11

34

G12

33

G12

5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

0V

+B

KEY1

RE01

8.2K

KEY2

RE11

8.2K

RE21

8.2K

KEY3

RE31

8.2K

KEY4

RD26

1K

RD60

10K

RD61

10K

SWD01

VOLUME

JOG

CD06

0.001

KEY5

KEY6

RE51

8.2K

XD01

CD01

0.022

CD02

100/10

+B

LD01

2.2

µ

H

CD07

0.001

RD64

10K

RD65

10K

CD08

0.001

RE41

8.2K

SWD39

VIDEO/AUX1

RE42

1K

SWD40

VIDEO/AUX2

RE43

1.2K

SWD02

JOG

JOG PWB-C4

SWD41

TAPE

1/2

+B

RE44

1.8K

SWD42

TUNER/BAND

RE45

2.2K

SWD43

CD

DISC 3

DISC 2

DISC 1

QD10

KRC107 M

3

2

RD70

820 DISC 3

3

1

1

2

RD71

820

QD11

KRC107 M

3

1

2

RD72

820

DISC 2

DISC 1

QD12

KRC107 M

SWD48

POWER

RE52

1K

RE53

1.2K

SWD49

KARAOKE

+B

6 5 4 3 2 1

WHD01

FWD01

6 1

SWD54

OPEN/CLOSE

RE57

5.6K

SWD53

DISC

SKIP

RE56

3.9K

SWD52

DISC3

RE55

2.2K

SWD51

DISC2

RE54

1.8K

SWD50

DISC1

7

DISPLAY PWB-C1 SWITCH PWB-C2

8 9 10

Figure 33 SCHEMATIC DIAGRAM (12/18)

– 33 –

11 12

CD-K477W

A

B

CFWP01

TO MAIN PWB

P27 12-E

1

FWP01

1

OUT3(S.W)

RELAY2

OUT1(Lch)

RELAY1

GND(A)

FAN CONT

OUT2(Rch)

SP LEVEL

GND(M)

H/P SW

+12V(M)

FAN SW

NC

PROT

POSISTOR

AMP

14

15

16

3

4

5

6

7

8

9

1

2

10

11

12

13

+B

S.W

FR

16

16

C

D

E

F

CFWP02

TO MAIN PWB

P27 12-C

1

FWP02

1

OUT4(Cch)

GND(M)

OUT5(Sch)

+12V(M)

GND(A)

FAN SW

RELAY3

NC

PROT

POSISTOR

AMP

1

2

3

4

5

9

10

11

6

7

8

+B

REAR

11 11

+B

CV11

2.2/50

CV13

2.2/50

CV15

470P

CV16

470P

RV14 56K

CV12

2.2/50

CV14

2.2/50

CY11

2.2/50

CY12

2.2/50

CY13

470P

RV17

1K

CV17

47P

RV18

1K

RY12

1K

CY14

47P

0V

16

0V

15

ICV01 -C

0V

17

POWER AMP

0V

18

ICV01-B

STK40727

POWER AMP

11

5

CV21

3P

RV35

2.2K

RV21

56K

QV16

KTC3199 GR

0V

0.6V

CV19

100/50

RV20

390

CV20

100/50

RV37

47K

RV38

10K

RV22 56K

RV36

22K

–36V

0V

RV34

15K

DV21

1SS133

CV27

1000/6.3

RV71

820

CV22

3P

CV18

47P

0V

13

0V

12

RV25

100

(1/2W)

CV23

47/50

CV24

47/50

Fusible

RV63

0V

RV33

10K

1 2

120K

–36V

14

10

19

ICV01-A

POWER AMP

RV26

100

(1/2W)

Fusible

4

3

0V

6

0V

7

QV13

KTC3199 GR

0V

RV27

10K

CV25

0.022

9

0V

RV29

0.2(1W)

0V

4V

RV31

1K

DV13

1SS133

RV69

0.2(1W)

DV15

1SS133

0V

RV70

0.2(1W)

8

CV26

0.022

RV30

0.2(1W)

RV28

10K

0V

4V

0V

QV14

KTC3199 GR

DV14

1SS133

CV30

3300/50

QY11

KTC3199 GR

0V

RY18

10K

4V

0V

CY17

0.022

RY16

20

0V 0.2(1W)

RY26

0.2(1W)

DY11

1SS133

CY15

3P

RY11

56K

RY14

56K

RY15

390

CY16

100/50

+B

QV18

KTC3199 G

4V

0V

QV1

KTC

4V

0

0V

C

47

CV29

3300/50

1 2 3 4 5 6 7

CNPV

CNS

CX11

2.2/50

CX13

2.2/50

CX15

470P

CX16

470P

CX12

2.2/50

CX14

2.2/50

RX15

1K

CX17

47P

0V

14

0V

13

ICX01-A

STK40704

POWER AMP.

9

3

RX16

1K

RX21

56K

CX19

15P

RX23

1K

RX35

2.2K

QX18

KTC3199 GR

0V

CX21

100/50

0.6V

RX37

RX36

22K –24V

0V

RX34

15K

RX20

390

CX22

100/50

47K

RX38

10K

RX22 56K

DX21

1SS133

CX27

1000/6.3

RX71

820

RX33 120K

CX20

15P

CX18

47P

0V

RX24

1K

11

0V

15

RX55

10K

–24V

12

–B

8

ICX01

POWER AMP

0V

10

4

0V

5

0V

RX25

100

(1/4W)

CX23

47/50

CX24

47/50

Fusible

RX26

100

(1/4W)

Fusible

2 1

RX27

10K

QX13

KTC3199 GR

0V

4V

DX13

1SS133

0V

CX25

0.022

7

0V

RX29

0.2(1W)

RX69

0.2(1W)

DX15

1SS133

RX70

0.2(1W)

6

0V

CX26

0.022

RX30

0.2(1W)

RX28

10K

0V

4V

0V

QX14

KTC3199 GR

CX30

3300/50

DX14

1SS133

QX15

KTC3199 GR

4V

0V

0V

QX1

KTC

4V

0

0V

CX28

47/50

CX29

3300/50

G

+B

H

• NOTES ON SCHEMATIC DIAGRAM can be found on page 18.

1

2 3 4

Figure 34 SCHEMATIC DIAGRAM (13/18)

– 34 –

5

1 2 3 4 5 6 7

CNPX

CN

6

DV15

SS133

0V

QV18

KTC3199 GR

4V

0V

QV19

KTC3199 GR

4V

0V

0V

CV28

47/50

RV40

56K

RV41

56K

RV42

56K

V30

0/50

CV29

3300/50

RY19

56K

CD-K477W

+B

RLYV11

RELAY

RLYY11

RELAY

DV17

1SS133

SPEAKER AMP.2 PWB-F2

FM SIGNAL

CV35

0.1

CV37

0.1

RV45

4.7(1/2W)

+

TMV01

SPEAKER

TERMINALS

FRONT

SPEAKER

L-CH

–

CV36

0.1

CV38

0.1

RV16

4.7(1/2W)

+

–

FRONT

SPEAKER

R-CH

8OHMS

CY21

0.1

CY20

0.1

RY24

4.7(1/2W)

+

–

SUB

WOOFER

+B

+B

DY12

1SS133

RELAY1

RELAY2

FAN SW

QV22

KTC3199 GR

0V 0V

RV62

3.3K

0.6V

RV61

QY12

47K

KTC3199 GR

0V

0V

RY21

3.3K

0.6V

RY22

47K

DV19

1SS133

+B RV55

47

ZDV12

MTZJ6.2B

CV47

47/25

DV25

1SS133

RV57

4.7K

0V

RV56

3.9K

9.3V

8.8V

0V

QV21

KTC3199 GR

QV20

KTA1270

2

1

SP LEVEL

FAN CONT

ZDV11

MTZJ5.1B

RV51

330

H/P SW

RV52

330

2

1

M901

FAN MOTOR

M

WTV11

5

4

3

2

1

HP-L CH

GND(A)

HP-R CH

GND(M)

H/P SW

FW91

FROM

HEADPHONE PWB

P32 1-B

1

2 3 4 5 6 7

CNPV12

CNS903

TO POWER PWB

P38 6-A

X15

S133

QX15

KTC3199 GR

4V

0V

0V

QX16

KTC3199 GR

4V

0V

0V

CX28

47/50

RX40

56K

RX41

56K

RX42

56K

RX43

4.7

(1/2W)

CX31

0.1

(ML)

CX33

0.047

(ML)

RX44

4.7

(1/2W)

CX34

0.1

(ML)

CX32

0.1

(ML)

X30

0/50

CX29

3300/50

RLYX11

RELAY

+B

DX16

1SS133

.....

QX20

KTC3199 GR

0V

RX51

3.3K

0V

0.6V

RX50

47K

RX53

22K

DX17

1SS133

RX52

27K

+B

–

+

+

TMX11

SPEAKER

TERMINALS

CENTER

SPEAKER

8OHMS

–

+

REAR

SPEAKER

L-CH

16OHMS

REAR

SPEAKER

R-CH

–

1 2 3 4 5 6 7

CNPX12

7

CNS904

TO POWER PWB

P38 5-A

8

SPEAKER AMP.1 PWB-F1

9 10

Figure 35 SCHEMATIC DIAGRAM (14/18)

– 35 –

11 12

CD-K477W

A

B

C

D

E

F

G

SW1

SW2

MW

GND

FM

75ohms

SO301

ANTENNA

TERMINAL

FM SIGNAL MW/SW1/SW2 SIGNAL

C303

0.022

C304

0.022

C305

0.047

R317

10K

R310

22K

SW2

R318 1.5K

D305

1SS135

TRACKING

D306

1SS135

SW1

TRACKING

D308

1SS135

L311

560

µ

H fL fH fL fH

D307 1SS135

T304

SW2 ANT

T303

SW1 ANT

T302

MW TRACKING

MW ANT

C306

10P (UJ)

VD302-B

KV1236Z23F

Q309

2SC2878 B

0V

0V

R312

33K

0V

D309

1SS135

TC302

C308 (UJ) 0V

8.2P

0V

R314

3.3K

0V

TC303

R311

100K

C309

330P

Q308

2SC2878 B

D310

1SS133

C310

0.001

R316

22K

D311

1SS135

VD301-1

KV1236Z23F

C311

0.022

R319

100K

C330

8.2P

(UJ)

C331

0.047

C338

0.001

D301

1SS133

D302

1SS133

R320

10K

C316

0.1

R322

5.6K

C318

0.022

R328

10K

C315

0.1

C319

0.022

VD302-A

KV1236Z23F

D316

1SS135

SW1

TRACKING

SW1 BAND

COVERAGE fH fL

SW1 OSC

T307 fL fH

SW2 OSC

T308

TC304

TC305

0V

0V

R329

100K

R327

5.6K

0V

Q307

2SC2878 B

0V

0V

0V

Q306

2SC2878 B

VD301-2

KV1236Z23F

C320

0.0018

R330

1K

R324

100K

MW BAND

COVERAGE

R323

68K

MW OSC T306

C334

18P

(UJ)

C336

470P

R302

82

D313

1SS133

D314

1SS133

C321

R325

56K

0.0039

R326

1K

BFT01

FM BAND PASS

FILTER

RF

ICT01A TA7358AP

FM FRONTEND

B.A

MIX

OSC

1

RT01

100K

2 3 1

CT01

18P(CH)

CT02

0.01

CT04

0.001

2 3 4

CT03

4.7P

FMRF

5 6

CT11

15P

(CH)

7

RT06

10

LT02

FM BAND

COVERAGE

8

CT12

33P

VCC

9

CT16

10/16

2

CT05

6.8P

(UJ)

FMIF

TT01

FM

OSC

CT13

3.9P(UJ)

RT04

47

CT14

22P(CH)

RT08

10K

3

D303

1SS133

RT03

22

RT05

47K

C390

100P

D304

1SS133

C301

0.001

RT07

680

QT01

2SC535 C

AMP

RT09

820

1

C312

0.022

R343

47K

2

RT10

4.7K

3

C313

0.022

R342

47K

1

0V

2

3

R341

47K

1

3

C342

0.022

1

VR351

10K(B)

FM MUTE

LEVEL

L356

1mH

CF302

10.7MHz

FM1F

1 3

+B

2

+B

+B

H

• NOTES ON SCHEMATIC DIAGRAM can be found on page 18.

1

2 3 4

Figure 36 SCHEMATIC DIAGRAM (15/18)

– 36 –

5 6

CD-K477W

TUNER PWB-D

3

342

022

1

R351

0K(B)

UTE

L

Q365

KRC107 M

2

C343

15P (CH)

R358

8.2K

L353

1mH

302

MHz

1F

3

2

1

24 23 22

2 3

T351

21

4

R352

1K

1 3

20 19 18

TP 302

R363

1.5K

R350

2.7K

C367

1/50

17 16 15

IC303

LA1832

FM IF DET./FM MPX./AM IF

R-CH OUT

14

C371

1/50

R361

5.6K

C372

1/50

L-CH OUT

13

R362

5.6K

0V

MUTING

Q353

KTC3199 GR

0.65V

0V

R367

1K

10K

R365

C375

3.3/50

R368

33K

0V

0.65V

R366

10K

5 6 7

8

9

10 11

C358

1/50

12

C357

2.2/50

C356

0.001

R355

3.3K

0V

Q354

KTC3199 GR

MUTING

R354

4.7K

2

C354 0.022

AMIF

+B

R393 1K

R382

150

C381

C397

0.022

12P (CH)

C394

47/16

C392

0.001

L351

100

µ

H

R381

10K

R380

1.5K

C385

0.01

C393

2.2/50

22 21 20 19 18

IC302

LC72131

PLL CONTROLLER

17 16 15 14 13 12

R396

1K

C382

15P (CH)

1 2 3 4

5 6 7 8 9 10

11

R360

4.7K

R398 1K

R373 1K

R374 1K

R371 1K

R372 1K

FMIF

R377

47K

R395

47K

R390

82K

R359

1.8K

L352

100

µ

H

ZD351

MTZJ4.7B

C396

100/10

+B

C395

0.022

R391

390

Q360

KTA1266 GR

11.6V

R392

390

12.18V

11.37V

R383

5.6K

R385

5.6K

2

C391

47/16

R384 5.6K

1

3

ZD352

MTZJ3.9B

Q361

KRC107 M

D351

1SS133

R387

22K

C383

0.0022

+B

+B

GND(D)

CNP303

1 2 3 4

5 6 7 8 9

10 11

7

8

FROM MAIN PWB

P24 1-E

CNSF13

11 9 10

Figure 37 SCHEMATIC DIAGRAM (16/18)

– 37 –

12

CD-K477W

A

TO SPEAKER

AMP.1 PWB

P35 7-H

CNPX12

CNS904

1 2 3 4 5 6 7

BI904

1 2 3 4 5 6 7

TO SPEAKER

AMO.2 PWB

P35 7-D

CNPV12

1 2 3 4 5 6 7 CN

1 2 3 4 5 6 7

BI9

POWER PWB-D

B

C

D

E

F

+B

–B

+B

+B

+4.6V(D)

GND(D)

+B

C901

0.022

C902

47/25

Q913

2SB1375

–12.5V

R901

68(3W)

–11.9V

–24.2V

R918

100

R917

4.7K

1

–12.5V

2

C920

47/25

ZD901

MTZJ130A

Q914

KRC107 M

3

C906

0.022

+12V(M)

Q903

2SD468C

+4.8V

R905

22

C905

47/25

R904

1.5K

R906

100

ZD902

MTZJ5.6A

C904

47/25

Q902

2SD2012

+17.7V

R903

47

Q901

KTC3199 GR

C903

47/25

R902

1K

GND

+B

+12V(A)

D901

1SS133

C909

0.022

+B

2

–1.0V

1

1.3V

3

0V

Q907

KRA102 M

+7.3V(CD)

Q909

2SD2012

+7.6V

+17.7V

Q908

KTC3199 GR

C911

0.022

CD GND(D)

D905

1SS133

R912

47

7.9V

C910

47/25

8.3V

R911

560

ZD904

MTZJ8.2C

Q906

2SD2012

12.0V

+17.7V

Q905

KTC3199 GR

12.8V

R910

150

13.4V

C908

47/25

Q904

KRA107 M

2

13.4V

1

13.4V

3

R909

1K

R908 33K

D904

1N4004S

F999

T500mA L 250V

R907

560

ZD903 MTZJ130C

C919

4700/25

GND(M)

G

BI901

1 2 3 4 5 6 7 8 9 10 11

CNS901

1 2 3 4 5 6 7 8 9 10 11

H

CNPP01

TO MAIN PWB

P27 12-F

• NOTES ON SCHEMATIC DIAGRAM can be found on page 18.

1

2 3 4

Figure 38 SCHEMATIC DIAGRAM (17/18)

– 38 –

5 6

CD-K477W

EAKER

PWB

7-D

V12

5 6 7 CNS903

5 6 7

BI903

+26.0V

+

D990

KBU403

~

–

~

–26.0V

C951

0.047

(ML)

C952

0.047

(ML)

F993

T3.15A L 250V

F994

T3.15A L 250V

T991

POWER TRNSFORMER

+37.0V

+

D991

KBU603

~

–

~

–37.0V

C954

0.047

(ML)

C956

0.047

(ML)

F995

T6.3A L 250V

F996

T6.3A L 250V

D992–D995:2A02

D992

+17.7V

D993

R954

220

–31V

R953

220

D995

D994

C957

0.047

(ML)

C958

0.047

(ML)

C961

220/50

D951 1N4004S

F997

T2.5A L 250V

C964

47/50

C963 47/50

C965

100/35

R956 100

ZD952

MTZJ6.8C

–31.8V

R957 2.2K

–34.1V

Q951

KTA1266

C962 47/63

D954

1N4004S

C959

220/50

R951

1

R952

1

T.F.

F991

T2.5A L 250V

F992

T2.5A L 250V

230-240V

220V

127V

110V

SW991

VOLTAGE SELECTOR

F990

T5A L 250V

(285)

(285)

AC POWER

SUPPLY CORD

AC 110/127/220/230-240V

50/60Hz

(242)

3 2 1

FW901

WTP01

TO MAIN PWB

P26 1-D

7

12 8 9 10

Figure 39 SCHEMATIC DIAGRAM (18/18)

– 39 –

11

CD-K477W

A

1

TO SPEAKER AMP.1 PWB

P47 11-B

CFWX11

FWP02

11

FROM TUNER PWB

P46 1-B

CNP303

CNSF13

1 2 3 4 5 6 7 8 9 10 11

1

TO

MAIN PWB-A

B

C

D

COLOR TABLE

B R

R D ( R )

O R

Y L

G R

B L

V L

G Y

W H ( W )

B K

P K

BROWN

RED

ORANGE

YELLOW

GREEN

BLUE

VIOLET

GRAY

WHITE

BLACK

PINK

SWF02

SPAN

SELECTOR

10/100

FM/MW

9/50

RR82

B C E

QR21

RR80

CR62

CR61

4 1

5

ICP12

8

RP68

E

C

B

CP52

E

C

B

RP18

CP08

RP20

RP26

4 1

RP22

RP25

CP24

CP23

ICP11 RP12

RP11

4

ICR15

1

5 8

RP17

3

2

1

5 8

CR57

3

2

1

QR11

3

2

1

QR12

CR16

RP19

RP33

RP10

RP85

RP74

CP70

RP09

CC87

CC85

CC59

CC84

SWF02

RR86

8

CP72

RP76

5

1

ICP71

4

CP76

1 2 3 4 5 6 7 8 9 101112131415

ICP70

30 29 28 27 26 25 24 23 22 21 20 19 18 17 16

CP83

ZDP01

CP82

CP84

RP75

CP71

RP84

RC18

RC15

CC63

RC61

DC02

RP82

RP83

CC70

CC71

1

RC51

CC64

CC60

CC65

RC52

CC62

25

5

60

15

20

10 55

ICC01 50

45

40

30 35

CC77

CC75

CC76

CC98

CC97

CC96

CC86

CC51

CC53

RC20

RC14

CC83

CC74

RC19

RC13 RC59

CC68

1

E

C

B

E

C

B

QP11

BIF13

11

RG01

RC57

CC48

RC58

RC04

ICC02

7

8

9

5

6

3

4

1

2

E

JR12

INPUT

VIDEO/AUX2

L-CH

R-CH

JR12

RU16

F

G

JR11

INPUT

VIDEO/AUX1

L-CH

R-CH

CU53

CU51

CU43

RU12

CU50

CU55 CU42

JR11

DR11

CR10

DR12

3

2

ICR11

DIGITAL

OUTPUT

CNPR11

ZDR01

RR01

3

2 1

CU39

CU31

CU29

CR13

CU26

17

32

33

30

35

25

20

15

10

5

ICU01

60

40

55

45

50

48

16

CU40

CU34

49

CU11

RU03

1

64

CU24

CU18

CU16

CU04

CU01

CU46

CU08

DU02

CU17

RU05

CU03

CU05

CU09

CU10

CU36

CU06

CU02

RU26

RU25

RU22

WTP02

3 2 1

RU21

BIF11

B C E

QU02

B C E

QU01

RU96

3 2

WTP01

1

1

6

CNPP01

1 2 3 4 5 6 7 8

H

1

CNS99

FROM CD SERVO PWB

P44 4-H

2

CNSU02

FROM KARAOKE PWB

P45 7-A

3 4

Figure 40 WIRING SIDE OF P.W.BOARD (1/9)

– 40 –

1 2 3 4 5 6

CNSF11

FWD02

FROM DISPLAY

PWB P42 1-F

FW901

FROM

POWER PWB

P48 1-E

CNP11

TO CD SERVO PWB

P44 4-G

CNS901

FROM POWER P

P48 1-F

5 6

CD-K477W

ER PWB

-B

303

CNSF13

6 7 8 9 10 11

RC57

BIF13

11

CC48

RC58

RC04

1

RG01

TO SPEAKER AMP.2 PWB

P47 8-A

CFWV11

QG04

E

C

B

FWP01

16

1 3 5 7 9 11

2 4 6 8 10

CFWP02

1

2

3 5

4 6

7

8

9 11

10 12

13

14

15

16

CFWP01

RK56

RK74

QK40

RK54

QK15

1 2 3

CK52

1 2 3

B

C

E

RK64 RK62

RK65

QK24

B C E

CK37

CK35

QK17

B

C

E

3

2

1

3

2

1

E

C

B

CK36

QK26

RK42

CK38

3 2 1

E

C

B

3 2 1

RK57

RK58

RK47

QK19

RK49

CK46

RK50

3

2

1

QK14

RK60

RK61

QK25

E

C

B

QK09

E

C

B

RK24 RK22

13 14

15

16 17

18 19 20

21 22 23 24

RK34

ICK01

12 11 10 9 8 7 6 5 4 3 2 1

CK13

CK39 CK27 RK29

QK13

B

C

E

E

C

B

RK03

RK04

CK16

RK12

B

C

E

CK62

7 6 5 4 3 2 1

E

C

B

CK07

QK08

RK09

B

C

E

RK06

CK05

RK18

CNPK01

1 2 3

B

C

E

RK11

RK89

E C B

RK01

1

2

3

3

2

1

CNPK02

3

2

1

RK10

CK55

1

2

3

3

2

1

RK72

RK73

RH15

RH16

CH19

CH12

8 5

ICH11

1

4

RH25

CR15

RR19

1

2

3

CNSK02

FROM

TAPE MECHANISM

TAPE2 HEAD

P45 11-H

CNSK01

FROM

TAPE MECHANISM

TAPE1 HEAD

P45 9-H

CG61

CNSF11

B

CNPP01

1 2 3 4 5 6 7 8

9 10 11

CNS901

FROM POWER PWB

P48 1-F

7

1 2 3

QP17

8

DG06

14

RG05

RG23

RG24

RF67

RF68

RF69

RF71

RF72

RF73

RF76

RF77

RF79

RF70

RF81

RF82

RF87

RF80

RF75

RF78

80

81

CG57

LG01

CG56

50

55

45

60

40

65

35

75

85

70

90

95

ICF01

20

25

15

10

5

100

51

1

RF88

31

30

XF01

RF28

RF32

RF27

RF26

RF25

RF24

RF29

RF31

RF30

DG05

3

2

1

QG01

B

C

E

RG34

B

C

E

RG29

CG01

DG02

RG57

RG58

RG59

BIF12

1

WTL11

DL13

13 12 11 10 9 8 7

6 5 4 3 2 1

RL20

DL14

RL24

RG38

RF23

RF22

RF21

RF20

RF19

RF10

RF09

RF08

RF07

RF06

B

C

E

3

2

1

3

2

1

B

C

E

3

2

1

3

2

1

3

2

1

B

C

E

1

2

3

4

5

6

7

8

9

10

RL11

B

C

E

14 13 12 11 10 9 8 7 6 5 4 3 2 1

CNSF12

CNP12

FROM CD SERVO PWB

P44 5-G

FWM1

FROM TAPE MECHANISM PWB

P45 9-E

9

Figure 41 WIRING SIDE OF P.W.BOARD (2/9)

– 41 –

10 11 12

CNSD1

TO DISPLAY PWB

P42 2-F

CD-K477W

F

B

C

D

E

A

3

1

WTP01

TO MAIN PWB

P40 5-H

CD11

CD09

CD10

FLD01

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 2223 24 25 2

CD06

CD05

SWD01

VOLUME JOG

RXD01

REMOTE

CONTROL

SENSOR

LD01

SWD03

X-BASS

1

3

2

QD04

RD51

3 2 1

QD03 3 2 1

QD02

3 2 1

RD50

QD01

3 2 1

CD29

RD48

CD28

CD30

3

1

CD20

CD19

CNSD01

10

9

7 5 3

8 6 4

2

1

CD18

CD21

RD53

3 2 1

3 2 1

QD06

QD05

SWD04

RD52

PRE EQ

SWD19

SUB WOOFER

VOLUME UP

RE14

RD49

SWD20

SUB WOOFER

VOLUME DOWN

RE13

RE25

LEDD07

SWD25

4SP-2

SWD16

REC/PAUSE

STOP

RE12

LEDD12 LEDD11

LEDD13

SWD24

4SP-1

SWD13

RE27

LEDD02

STOP

RE94

81

65

70

75

80

85

90

95

60

55

5

ICD01

5

10

100

1

LEDD09 LE

LEDD10

SWD27

PHANTOM

SWD02

JOG

RD

SWD17

F-PLAY

SWD15

HIGHT EDIT

SWD14

NORMAL

EDIT

RE17

SWD12

TUNING

UP/CUE

JOG PWB

CNPF01

FROM MAIN PWB

P41 12-G

G

JV91

LV91

5

1

5

TO SPEAKER

AMP.2 PWB

P47 7-A

WTV11

1

FWV91

SWD54

OPEN/

CLOSE

RE57

SWD53

DISC

SKIP

RE56

HEADPHONES PWB-C3

H

1

6 2 3 4

Figure 42WIRING SIDE OF P.W.BOARD (3/9)

– 42 –

5

CD-K477W

DISPLAY PWB-C1

FLD01

16 17 18 19 20 21 2223 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 3940 41 42 43 44 45 46 47

RE94

81

80

85

75

70

65

60

55

50

45

40

ICD01

35

30

25

15

20

90

10

95

5

100

1

LEDD09 LEDD08

RD34

XD01

LEDD15

LEDD14

LEDD19 LEDD18

LEDD10

RD14

SWD27

PHANTOM

LEDD16

SWD28

NORMAL

LEDD17

RE29

SWD29

BYPASS

RE28

CD

REVERSE

SWD31 SWD32

SWD02

JOG

REW

LEDD21

JOG PWB-C4

SWD33

R-PLAY

SWD30

TUNING DOWN/

REWIND

3

2

1

3

2

1

ASPM

RD30

RD67

RD62

BAND

SWD39

VIDEO/AUX1

SWD43

CD

SWD42

TUNER

SWD41

TAPE1/2

SWD40

VIDEO/AUX2

RD66

RD36

SWD37

SLEEP

RE35

RE39

SWD34

CLOCK

SWD36

TIMER

RE37

RE36

SWD35

MEMORY

SWD38

CLEAR

1

2

3

RD44

RD43

RD42

RD41

RE51

RE41

RE31

1

2

3

RD38

RD64

RE01

RE11

RD65

RD37

SWD48

1

2

3

ON/STAND-BY

1

2

3

4

5

6

RE53

RE52

SWD49

KARAOKE

53

RE56

LEDD28

RE55

SWD52

DISC3

RE54

SWD51

D1SC2

LEDHLD

SWD50

DISC1

SWITCH PWB-C2

7

8 9 10

Figure 43 WIRING SIDE OF P.W.BOARD (4/9)

– 43 –

11 12

CD-K477W

SOLENOID

SOLM2

CD MOTOR PWB-K

+

M2

SLED MOTOR

A

SENSOR PWB-J

B

SW3

DISC NUMBER

M3

T/T UP/

DOWN LOADING

MOTOR

2 1

1

2

3

4

5

6

CNS3A

RD

WH

GY

WH

GY

WH

1

2

3

4

5

6

CNS3B

1

2

3

4

5

6

-

SW4

PICKUP IN

+

M1

SPINDLE MOTOR

-

PICKUP UNIT(306)

1

BIM5

6

C

D

E

2 1

SW1

OPEN/CLOSE

SW2

MECHA UP

M901

FAN MOTOR

10 9 8 7 6 5 4 3 2 1

F

G

RD

BR

CNSV11

2

1

COLOR TABLE

B R

R D ( R )

O R

Y L

G R

B L

V L

G Y

W H ( W )

B K

P K

BROWN

RED

ORANGE

YELLOW

GREEN

BLUE

VIOLET

GRAY

WHITE

BLACK

PINK

CNPV11

TO SPEAKER

AMP.2 PWB

P47 9-A

H

CNS1A

3

4

1

2

5

BK

WH

PK

YL

BL

6

7

8

3

4

1

2

5

CNS2A

GY

RD

WH

GY

WH

GY

WH

GY

WH

BL

PK

WH

YL

BK

CNS1B

3

4

1

2

5

6

7

8

3

4

1

2

5

CNS2B

7 10 8

1

9

2

3

4

5

6

8

5

C35

1

4

5

2

3

6

R48

6

7

4

5

1

2

3

8

9

10

19

20

25

30

36

C36

35

R82

5

4

3

6

1

8

7

2

9

8

7

6

5

4

3

2

1

R19

15

C8

R12

C7

R11

C6

R13

R16

R20

18

C54

C4

R8

R9

C5

3

4

1

2

5

CNP1

R2

C1

C3

C15

Q1

B C E

R1

C2

C31

R46

R10

1 64

R14

C9

R21

R22

R25

C14

R15

C10

R17

R18

C11

R23

R24

C12

C13

R26

16

17

15

20

10

5

IC1

60

25

12

40

55

45

50

30 35

32

33

C21

10

5

1

R27

C16

R28

R30

R31

R29

C17

R33

C18

R34

49

48

C85

C32

C34

C33

C20

R36

C19

R32

R88

R35

R89

R90

E

C

B

R66

Q52

B C E L61

3

2

1

1 2

CNP11

6 5 4

3 2

1

3

Q51

R64

1

BI99

3

D1

C30

C57

C46

R60

R47

C37

R63

R50

1 64

R61

R62

R57

R59

C44

C49

C45

R58

5

60

16

17

15

20

10

IC2

55

50

45

49

48

25

30 35

40

R93

C50

C71

C73

R73

C74

32 33

R72 C72

C43

R55

R54

R74

C83

D82

D81

C53

C41

XL1

C42

14 13 12 11 10 9 8 7 6 5 4 3 2 1

CNP12

RD

WH

BK

CNSF11

FROM MAIN PWB

P40 5-H

RD

WH

1 2 3

BK

CNS99

CNPR11

TO MAIN PWB

P40 2-H

• The numbers 1 to 12 are waveform numbers shown in page 49.

1

2 3 4

Figure 44 WIRING SIDE OF P.W.BOARD (5/9)

– 44 –

11

5

1

1

CD SERVO PWB-B

CNSF12

FROM MAIN PWB

P41 9-H

6

TO MAIN PWB

CNPU02

P40 4-H

CNSU02

9

8

GY

WH

7

GY

6

5

4

WH

GY

WH

3

GY

2

1

WH

RD

9

1

C677

R667

R668

ZD631

E

C

B

C672

C673

C674

C626

C627

C622

C623

C620

C621

19

36

35 30 25

IC601

5 10 15

20

1

18

C634

C632

D601

C602

C601

C615

R602

R601

CD-K477W

KARAOKE PWB-L

VR603

DIGITAL

ECHO

VR602

MIC2

VOLUME

MIC LEVEL

VR601

MIC1

VOLUME

J602

MIC2

MIC

J601

MIC1

TO MAIN PWB

P39 10-H

WTL11

MM1

TAPE MOTOR

FWM1

13 12 11 10 9 8 7 6 5 4 3 2 1

TAPE MECHANISM PWB-H

SWM4

REC RVS

SWM2

T2

CrO2 SW

13

FWM1

1

SWM3

REC FWD

4

SOLENOID

SOLM1

2

1

PHM1

4

3

TAPE 1

PLAYBACK HEAD

SWM6

CAM

TAPE 2

RECORD/PLAYBACK/ERASE HEAD

1

FWM2

L

H

SWM1

T1

CrO2 SW

VRM1

TAPE

SPEED

CNPM2

SWM5

F. A. S

PK

WH

GY

BK

HEAD PWB-G

FLEXIBLE PWB

3 2 1

6

BI 102

1

TAPE MECHANISM ASSEMBLY

7

8

TO MAIN PWB

P39 12-C

CNPK01

GY

GY

WH

BK

PK

BL

BK

YL

WH

CNSK02

1

2

3

4

5

6

7

TO MAIN PWB

P39 12-B

CNPK02

11 9 10

Figure 45 WIRING SIDE OF P.W.BOARD (6/9)

– 45 –

12

CD-K477W

A

B

C

D

E

F

G

R377

R390

R379

R380

R381

C392

C393

C394

R387

R374

R371

C381

R384

R385

L351

R396

C385

C390

C386

CT05

LT01

LT02

CT07

CT06

CT12

CT14

CT10

R367

VDT01

L352

RT04

RT08

CT04

RT10

RT01

R395

R365

Q354

R366

Q353

C371

C373

R361

R362

C355

C356

C354

C353

R356

C365

C367

R352 R351

C361

C350

R358

C343

VD302-B

C304

C306

R338

R339

R326

C313

R330

D317

R342

C321

R311

R340

R329

C320

C307

C319

R323

R343

R313

D313

Q306

D310

D314

R315

R314

R322

D315

R327

C309

C310

C311

C318

R328

C316

C315

R317

D316

R302

C314

VD301-2

R324

C330

C305

C338

C303

VD301-1

C360

C363

R357

C364

R350

C368

C372

C374

C362

R341

H

1

2 3 4

Figure 46 WIRING SIDE OF P.W.BOARD (7/9)

– 46 –

5 6

CD-K477W

FROM HEADPHONES

PWB

P42 3-F

FWV91

1

TO MAIN PWB

P41 7-A

CFWP01

16

TO FAN MOTOR

P44 2-G

CNS901

FWP01

FROM POWER PWB

P48 6-F

CNS903

1 2 3 4 5

WTV11

QV19

B

C

E

E

C

B

B C E

RV61

QV22

B

C

E

QY12

7 6 5 4 3 2 1

CNPV12

1

2

3

4

5

6

14

7

8

12

9

10

11

13

15

16

CY11

CV11

RV62

RY21

RV58

DV20

CV30

DV15

CV12

RY17

RY26

RY16

CY12

E

C

B

1 2

CNPV11

CV47

CV49

E

C

B

E

C

B

QV21

RV40

CV28

RV41

RV52

RV51

RV42

DV17

RY23

RV53

CV35

RY14

CV15

RV13

CY14

RV21

RV33

RV29

RV69

RV34

CV24

DV23

DV24

RV70

RV32

RV30

RV31

QV14

QV13

B C E

RV27

B C E

RV28

CV26

CV25

DV14

B C E

QV17

B

C

E

CV17

CV18

RV18

CV23

6

5

8

7

12

11

10

9

2

1

4

3

16

15

14

13

20

19

18

17

TO MAIN PWB

P40 4-A

CFWP02

FROM POWER PWB

P48 6-G

CNS904

7 6 5 4 3 2 1

CNPX12

1

FWP02

QX20

E C B

RX50

CFWX11

1

2

3

4

5

6

7

8

12

9

10

11

13

CX30

13

CX11

DX15

QX15

E C B

QX16

RX40

B C E

CX28

CX29

CX31

RX43

CX33

RX44

RX41

RX42

DX16

CX32

CX34

RLYX11

RX53

RX54

RX23

RX21

RX55

RX29

RX69

RX34

CX15

RX13

CX21

CX24

CX17

CX18

RX16

CX23

2

1

4

3

6

5

8

7

11

10

9

15

14

13

12

RX30

RX31

RX32

RX70

B C E

QX13

RX27

CX25

B C E

DX14

QX17

RX35

B

C

E

QX14

B C E

RX28

CX26

– + – + – +

TMV01

SPEAKER AMP.2 PWB-F2

SUB

WOOFER

FRONT

SPEAKER

L-CH

FRONT

SPEAKER

R-CH

TMV11

SPEAKER TERMINAALS

TMX11

– + – + – +

SURROUND

SPEAKER

R-CH

SURROUND

SPEAKER

L-CH

CENTER

SPEAKER

TMX11

SPEAKER TERMINAALS

SPEAKER AMP.1 PWB-F1

7

12 8 9

Figure 47 WIRING SIDE OF P.W.BOARD (8/9)

– 47 –

10 11

CD-K477W

A

AC POWER

SUPPLY CORD

AC 110/127/220/230-240V

50/ 60Hz (242)

POWER PWB-D

(285)

B

(285)

230-240V

110V

SW991

VOLTAGE

SELECTOR

220V

127V

C

D

E

TO MAIN PWB

P40 5-H

WTP02

3

FW901

1

F

TO MAIN PWB

P41 7-H

CNPP01

CNS901

1 WH

WH

WH

WH

WH

WH

WH

WH

WH

WH

WH

RD

3

1

D952

D953

D954

R957

R956

C964

D951

C959

C958

C960

C965

R955

C961

C962

D992

D993

C919

G

C905

C906

Q903

Q909

R912

Q907

C909

R903

Q904

R909

R908

Q906

R910

C954

C956

H

1

2 3 4

Figure 48 WIRING SIDE OF P.W.BOARD (9/9)

– 48 –

5

RD

WH

WH

WH

WH

WH

WH

CNS903

CNPV12

TO SPEAKER AMP.2 PWB

P47 7-C

RD

WH

WH

WH

WH

WH

WH

CNS904

CNPX12

TO SPEAKER AMP.1 PWB

P47 10-B

6

1

5ms

0.50 V

IC1 20 F.E

2

5ms

5.0 V

IC1 54 DRF

3

0.5ms

1.00 V

HF

4

5

3

4

5

6

7

8

9

6

7

8

9

0.5ms

5.0 V

HFL

0.5ms

5.0 V

TES

50ms

10.0 V

JP+

50ms

10.0 V

JP-

50ms

0.50 V

JP

50ms

1.00 V

TE

0.5ms

10.0 V

JP+

0.5ms

10.0 V

JP-

0.5ms

0.50 V

JP

0.5ms

1.00 V

TE

0.5ms

5.0 V

HFL

0.5ms

5.0 V

TES

0.5ms

1.00 V

HF

6

7

8

9

50ms

10.0 V

JP+

50ms

10.0 V

JP-

50ms

0.50 V

JP

50ms

1.00 V

TE

WAVEFORMS OF CD CIRCUIT

STOP PLAY

FOCUS SERCH

3

1

6

7

8

9

0.5ms

10.0 V

JP+

0.5ms

10.0 V

JP-

0.5ms

0.50 V

JP

0.5ms

1.00 V

TE

CUE

10

20ms

1.00 V

SPO

1

2

3

11

20ms

2.00 V

CLV+

REVIEW

1

2

3

10

50ms

1.00 V

SPO

11

50ms

2.00 V

CLV+

PLAY

NORMAL DISC

TN0=01

PLAY

TCD-712 (140mm)

TN0=01

CUE

CD-K477W

PLAY

TCD-712

12

5s

100mV

SLD

1

12

0.5s

100mV

SLD

REVIEW

1

– 49 –

CD-K477W

TROUBLESHOOTING

When the CD does not function

When the CD section does not operate When the objective lens of the optical pickup is dirty,this section may not operate.Clean

the objective lens,and check the playback operation.When this section does not operate even after the above step is taken,check the following items.

Remove the cabinet and follow the troubleshooting instructions.

"Track skipping and/or no TOC(Table Of Contents) may be caused by build up of dust other foreign matter on the laser pickup lens.

Before attempting any adjustment make certain that the lens is clean. If not, clean it as mentioned below."

Turn the power off.

Gently clean the lens with a lens cleaning tissue and a small amount of isopropyl alcohol.

Do not touch the lens with the bare hand.

• When the turntable fails to stop.

Is from

5V

2.5V

0V

5 V till 2.5V down pulse (approx. 300 ms) input into the ICF01 pin 91 when the turntable is rotating?

Yes

Is there following voltage input on the ICF01 pin 91 in the specific state?

When the CD mechanism is moved up: 0V

In other states: 4.3V

Yes

Check IC2 pin26 Q91 and Q93 and the periphery.

Yes

ICF01 defective.

No

No

Check the SW3 and the wiring from the ICF01 pin 91 to the

SW3.

Check the MECHA UP SW and the wiring from the ICF01 pin

91 to the MECHA UP SW.

• When turntable fails to move.

Is there following voltage input on the ICF01 pin 91 in the specific state?

When the CD mechanism is moved up: 0V

In other states: 4.3V

Yes

Is L output from the IC2 pin 26 during SEC when the disc skip switch is pressed?

Yes

Is 4V output from the Q91 emitter during operation stated above?

Yes

Check turntable motor and turntable mechanism.

No

Check the MECHA UP SW and the wiring from the ICF01 pin

91 to the MECHA UP SW.

No

No

Check the wiring of IC2 pin 26 and Q93 pin 2.

OK

IC2 defective.

Check Q91, Q93 and the periphery.

– 50 –

CD-K477W

• When the CD tray fails to open or close.

Is there following voltage input in specific state of ICF01 pin 93?

Open state: 0V

Close state: 0V

Intermediate state between open state and close state: 4.3V

Yes

Is H output to IC2 pin 24 or 25 for 7 seconds when the OPEN/

CLOSE key is pressed?IC81 is defective. Replace it.

No

No

Check the OPEN CLOSE SW and the wiring from the ICF01 pin 93 to the OPEN CLOSE SW.

Check the wiring of the IC2 pins 24 and 25, IC81 pins 1 and 3.

OK

IC2 defective.

Yes

Is 4V output between IC81 pins 3 and 7 during operation stated above?

No

Check the periphery of IC81.

OK

IC81 defective.

Yes

Check the loading motor (M1) and the loading mechanism.

• The CD function will not work.

The CD operating keys don't work.

Yes

Check the CD, DSP, power supply, and 16.93 MHz clock, and reset terminal.

Yes

Check the waveform of SCK, SO (DATA) and SI (COMM).

Yes

See if the pick-up is the in PICKUP IN SW position.

Yes

If the items mentioned above are OK, check the main microcomputer ICF01.

• The CD operating keys work.

0.5s

0.50 V

IC1 16 FD

Check the Focus - HF system.

Playback can be performed without a disc.

Yes

Does the pick-up move up and down twice?

No

Does the output waveform of IC1(16)(FD) match that shown in

Fig. 51?

No

Check the IC1(50)(CLK) line, 4MHz.

Check the microcomputer data on pins (51)(CL), (52)(DAT) and (53)CE.

0.5s

0.50 V

IC1 7 TE

Yes

Focus search OK

Yes

Figure 51

Check the area around IC3-CNP2.

1

2

Focus search is performed two times when play operation is done without disc.

– 51 –

CD-K477W

• Playback can only be performed when a disc is loaded.

Is the Focus servo active? (Can you hear it working?)

Yes

Does the DRF signal change from "L" to "H"?

Yes

Is HF waveform normal (see the Fig.52-1, 2)?

Yes

Check the tracking system.

HF

1.0V/DIV

0.5

µ sec/DIV(DC)

(When playing

back the disc)

Figure 52-1

• Check the tracking system.

No

Check the laser diode driver.

Check the area around IC1(16) - (21) (focus servo circuit).

No

No

0.5s

1.00 V

IC1 16 FD

0.5s

10.0 V

IC2 13 CLV+

0.5s

10.0 V

IC1 54 DRF

0.5s

2.00 V

IC1 7 TE

If the disc is not turning, the DRF should not change to "H".

Yes

Check the spin system.

Level is abnormal.

Yes

Check the periphery of

IC1 pins 41 and 42.

Waveform is unstable.

Yes

Check the spin system.

Waveform in case of normal play-back

2

1

3

4

Figure 52-2

Check waveform of IC1 pin 7 (TE).

The waveform shown in

Fig.52-3 appears, and nodisc state appears soon.

Yes

Tracking servo is inoperative.

Yes

Check the periphery of IC 1 pin 8 to pin 15, and IC 3 to

CNP2.

Play is possible in

TEST mode.

Data cannot be read.

Yes

Although IL is possible, play is impossible.

Yes

Normal jump is impeded, and the program top cannot be reached.

Check the VCO-PLL system.

Yes

Yes

Check the periphery of IC 1 pin 14.

5ms

1.00 V

IC1 7 TE

4

5 ms

5.0 V

IC1 54 DRF

3

Figure 52-3

– 52 –

CD-K477W

• Checking the spin system.

Play operation is performed without disc.

Yes

The turntable rotates a little.

No

The turntable fails to rotate or rotates at high speed.

Yes

The spin driver circuit is normal.

Yes

Check the periphery of IC1 pins 23 to 27, pin 39, and pin 40, IC2 pin 12 and pin 13, IC5 to CNP3.

• Checking the VCO-PLL system

Play operation is performed when disc exits.

Yes

Although HF waveform is normal, TOC data cannot be read.

Yes

Check PDO waveform (Fig. 53).

Abnormal

Check the IC1 pins 43 and 44, IC2 pins 3, 5, 7, 10, and 11.

0.5s

1.00 V

IC2 3 PDO

0.5s

1.00 V

IC2 16 FD

Stop --> Play

2

As VCO frequency is locked at

4.32 M Hz, voltage of PDO rises and stabilizes.

3

Figure 53

• Although HF waveform is normal and the time indication is normal, no sound is emitted.

Check IC 2 pin 48 (EFLG).

Yes

Check IC2 pins 37, 40.

Abnomal

Check IC 401 and POWER AMP ICV01 and ICX01.

No

Usually, the number of pulses of flawless disc is 100 pulses/sec or less.

– 53 –

15

16

17

18

19

20

21*

22*

9

10

11

12

13

14

5

6

7

8

3

4

Pin No.

1

2

44

45

46

47*

48*

40*

41

42*

43

36

37*

38

39

32*

33

34

35*

27

28*

29*

30*

31

23

24

25

26

CD-K477W

FUNCTION TABLE OF IC

IC2 VHiLC78622K-1: Servo/Signal Control (LC78622K) (1/2)

HLF

TES

TOFF

TGL

JP+

JP-

PCK

FSEQ

RCH0

RVDD

MUTER

XVDD

XOUT

XIN

XVSS

SBSY

EFLG

TEST3

TEST4

N.C.

MUTEL

LVDD

LCHO

LVSS

RVSS

VDD

CONT1

CONT2

CONT3

CONT4

CONT5

EMPH

C2F

DOUT

Terminal Name Input/Output

DEFI

TAI

PDO

VVSS

ISET

VVDD

FR

VSS

EFMO

EFMIN

TEST2

CLV+

CLV-

V/P

Function

—

Output

—

—

Output

—

Output

—

Output

Output

Output

Input

Input

—

Output

Output

Input

—

Output

Output

Input

Input

Output

—

Input

—

Input

—

Input terminal of defect detection signal (DEF). (Connected to OV when not used.)

For PLL Input terminal for test. Pull-down resistor is integrated. Surely connected to 0V.

Output terminal of phase comparison for external VCO control.

Ground terminal for integrated VCO. Surely connected to 0V.

Resistance connection terminal for current adjustment of PDO output.

Power terminal for integrated VCO.

VCO frequency range adjustment.

Ground terminal of digital system. Surely connected to 0V.

Output

Input

Input

Outout

For slice level control EFM signal output terminal.

EFM signal input terminal.

Input terminal for test. Pull-down resistor is integrated. Surely connected to 0V.

Output for disk motor control. 3 values can be output with the commands.

Output

Output

Output for disk motor control. 3 values can be output with the commands.

Monitor output terminal for automatic switch of rough servo/phase control.

"H" for rough servo, and "L" for phase servo.

Input terminal of track detection signal. Schmit input.

Intput

Input

Output

Output

Output

Output

Output

Input terminal of tracking error signal. Schmit input.

Tracking OFF output terminal.

Output terminal for switch of tracking gain "L" increases the gain.

Output for track jump control. 3 values can be output with the commands.

Output for track jump control. 3 values can be output with the commands.

Clock monitor terminal for EFM data replay. 4,3218MHz as the phase clock.

Output Output terminal synchronous signal detection. "H" is output when synchronous signal detected by EFM signal matches synchronous signal internally generated.

— Power terminal of digital system.

Input/Output General purpose input/output terminal 1

Input/Output

Input/Output

Input/Output

General purpose input/output terminal 2

General purpose input/output terminal 3

General purpose input/output terminal 4

Input/Output General purpose input/output terminal 5

Controlled with serial data command from micro computer.

When not used, set it as the input terminal and open it by connecting to 0V, or set it as the output terminal and open it.

Difference monitor terminal At "H", deemphasis disk is being replayed.

C2 flag output terminal.

Output terminal of digital OUTPUT. (EIAJ format)

Input terminal for test. Pull-down resistor is integrated. Surely connected to 0V.

Input terminal for test. Pull-down resistor is integrated. Surely connected to 0V.

Terminal not used. Open during operation.

L channel 1 bit DAC Mute output terminal for L channel.

Power terminal for L channel.

L channel output terminal.

Ground terminal for L channel Surely connected to 0V.

R channel 1 bit DAC Ground terminal for R channel Surely connected to 0V.

R channel output terminal.

Power terminal for R channel.

Mute output terminal for R channel.

Power terminal for quartz oscillation.

Ground terminal of 16.9344 MHz quartz oscillator.

Ground terminal of 16.9344 MHz quartz oscillator.

Ground terminal for quartz oscillation. Surely connected to 0V.

Output terminal of synchronous signal of subcode block.

Correction monitor terminal of C1, C2, single and double.

In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.

– 54 –

CD-K477W

IC2 VHiLC78622K-1: Servo/Signal Control (LC78622K) (2/2)

Pin No.

Terminal Name Input/Output Function

61

62

63

57

58

59*

60*

53

54

55

56

49*

50*

51

52*

64

PW

SFSY

SBCK

FSX

WRQ

RWC

SQOUT

COIN

CQCK

RES

TEST11

16M

4.2M

TEST5

CS

TEST1

Input

Input

Output

Output

Output

Input

Input

Output

Output

Input

Output

Output

Input

Output

Input

Input

Output terminal of subcodes P, A, R, S, T, U and W.

Output terminal of synchronous signal of subcode frame. It drops when subcode stands by.

Clock input terminal to read subcode. Schmit input (Connected to 0V when not used.)

Output terminal of synchronous signal of 7.35kHz divided from quartz oscillation.

Output terminal to stand by output of subcode Q.

Input terminal of read/write. Schmit input.

Output terminal of subcode Q.

Command input terminal from microcomputer.

Clock input terminal to fetch command input, or pick up subcode from SQOUT. Schmit input

Reset input terminal of LC78622. When turning on power, set it at "L".

Output terminal for test. Used in the open state ("L" output as ordinary).

Output terminal of 16.9344Hz.

Output terminal of 4.2336MHz.

Input terminal for test Pull-down resistor is integrated. Surely connected to 0V.

Chip selection input terminal. Pull-down resistor is integrated.

Connected to 0when not controlled.

Input terminal for test Pull-down resistor is integrated. Surely connected to 0V.

Note: The same potential must be supplied to the power terminals (VDD, VVDD, LVDD, RVDD, XVDD).

In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.

DEFI

EFMIN

Slice level control

FSEQ

CLV+

CLV-

V/P

PW

SBCK

SBSY

SFSY

CS

WRQ

SQOUT

CQCK

COIN

RWC

Sync detection

EFM demodulation

C L V

Digital servo

Subcode division

QCRC

µ

C O M

Interface

Servo commander

VCO colck oscillation clock control

General-use port

2 K x 8 b i t

R A M

Flag processing of C1/C2 error detection and correction

XTAL system timing generator

RAM address generator

Interpolation mute

Bilingual

Digital OUT

Digital attenuator

X4 oversampling digital filter

1 b i t D A C

L . P . F

C2F

DOUT

(NC)

Figure 55 BLOCK DIAGRAM OF IC

– 55 –

CD-K477W

IC1 VHiLA9241M/-1: Servo Amp. (LA9241M) (1/2)

1

Pin No.

Port Name

FIN2

SLEQ

SLD

SL-

SL+

JP-

JP+

TGL

TOFF

FD-

FA

FA-

FE

FE-

AGND

NC

SPI

SPG

SP-

SPD

TD

JP

TO

FD

SCI

TH

TA

TD-

FIN1

E

F

TB

TE-

TE

TESI

SLI

DGND

FSC

TBC

NC

DEF

CLK

TES

HFL

SLOF

CV-

CV+

RFSM

RFS-

SLC

32

33

34

35

28

29

30

31

21

22

23

24

25

26

27

17

18

19

20

13

14

15

16

9

10

11*

12

7

8

5

6

2

3

4

44

45

46

47

48*

49

50

40

41

42

43

36

37

38

39

Function

Connection pin for photodiode of pickup.

RF signal is generated through addition with FIN pin, and FE signal is generated through subtraction.

Connection pin for photodiode of pickup.

Connection pin for photodiode of pickup. TE signal is generated through subtraction with F pin.

Connection pin for photodiode of pickup.

Pin for input of DC component of TE signal.

Pin to connect gain setting resistor of TE signal to TE signal.

TE signal output pin.

TES (Track error sense) comparator input pin. TE signal is band-passed and input.

Input pin for shock detection.

Pin to set time constant of tracking gain.

TA amplifier output pin.

Pin to compose tracking phase compensation constant between TD and VR pins.

Pin to set tracking phase compensation.

Pin to set amplitude of tracking jump signal (kick pulse).

Tracking control signal output pin.

Focusing control signal output pin.

Pin to compose focusing phase compensation constant between FD and FA pins.

Pin to compose focusing phase compensation constant between FD-/FA-pins.

Pin to compose focusing phase compensation constant between FA and FE pins.

Output pin of FE signal.

Pin to connect gain setting resistor of FE signal across TE pin.

GND for analog signal.

No connect.

Spindle amplifier input.

Pin to connect gain setting resistor in the 12cm mode of spindle.

Pin to connect spindle phase compensation constant together with SPD pin.

Spindle control signal output pin.

Pin to connect thread phase compensation constant.

Thread control signal output pin.

Input pin of thread feed signal from micro computer.

Input pin of thread feed signal from micro computer.

Input pin of tracking jump signal from DSP.

Input pin of tracking jump signal from DSP.

Input pin of tracking gain control signal from DSP. TGL = Gain low at "H"

Input pin of tracking off control signal from DSP. TOFF = Off at "H"

Output pin of TES signal to DSP.

(HIGH FREQUENCY LEVEL) is used to judge whether main beam is positioned on the bit or on the mirror.

Thread servo off control input pin.

Pin to input CLV error signal from DSP.

Pin to input CLV error signal from DSP.

RF output pin.

Pin to set gain of RF and set 3T compensation constant together with RFSM pin.

(SLICE LEVEL CONTROL) is the output pin to control of the level of the data slice with RF waveform DSP.

Input pin to control the level of data slice with DSP.

GND pin in the digital system.

Output pin for focus search smoothening capacitor.

(Tracking Balance Control) Pin to set EF balance variable range.

No connect.

Defect detection output pin of disk.

Reference clock input pin. 4.23MHz of DSP is input.

In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.

– 56 –

CD-K477W

IC1 VHiLA9241M/-1: Servo Amp. (LA9241M) (2/2)

Pin No.

57

58

59

60

51

52

53

54

55

56

61

62

63

64

Port Name

CL

DAT

CE

DRF

FSS

VCC2

REFI

VR

LF2

PH1

BH1

LDD

LDS

VCC1

Function

Micro computer command clock input pin.

Micro computer command data input pin.

Micro computer command chip enable input pin.

(DETECT RF) RF level detection output.

(Focus Serch Select) Pin to switch focus search mode. (± search/+ search for reference voltage)

VCC pin for servo system and digital system.

Pin to connect pass control for reference voltage.

Reference voltage output pin.

Pin to set defect detection time constant of disk.

Pin to connect capacitor for peak hold of RF signal.

Pin to connect capacitor for bottom hold of RF signal.

APC circuit output pin.

APC circuit output pin.

RF system VCC pin.

VCC1

64

LDS

63

APC

LDD

62

BH1

61

PH1

60

RF DET

LP2

59

VR

58

REFI

57

VCC2

56

FSS DRF

55 54

CE

53

DAT

52

CL

51

CLK

50

DEF

49

REF

FIN2 1

FIN1 2

E

3

F 4

TB

5

TE-

6

TE

7

TESI

8

SCI

9

TH

10

TA

11

TD-

12

TD

13

JP

14

I/V

BAL

T.SERVO & T.LOGIC

TE

VCA

VCA

F.SERVO & F.LOGIC

µ-COM

INTER FACE

SPINDLE SERVO

SLC

RF AMP

SLED SERVO

48

NC

47 TBC

46

FSC

45 DGND

44 SLI

43 SLC

42 RFS-

41

RFSM

40 CV+

39 CV-

38 SLOF

37 HFL

36 TES

35 TOFF

34 TGL

33 JP+

TO

15

FD

16

17

FD-

18

FA

19

FA-

20

FE

21 22 23 24

SPI

25 26

SPG SP-

27

SPD

28

SLEQ

Figure 57 BLOCK DIAGRAM OF IC

– 57 –

29

SLD

30 31

SL- SL+

32

JP-

CD-K477W

ICF01 RH-iX0235AWZZ:System Microcomputer (IX0235AW)

Pin No.

Port Name

Input/Output

Function

1-2

3-10

11

12

13

14

15

16

17

18

19-26

27-29

30-37

38-45

46-53

(53)*

54-55

56

57

58-63

64-71

72-79

(72)*

80-82

83-86

87-88

89

90

91-94

P00-P01

P10-P17

P70

RES

XT1/P74

XT2/P75

VSS1

CF1

CF2

VDD1

P80-P87

P71-73

Input/Output 8-Bit input/output port. Input/output can be specified in 4-bit units

HOLD release input. Port 0 interrupt input

Input/Output 8-Bit input/output port. Input/output can be specified in 1-bit units

Dual-purpose function

P10: SIO0 data output

P11: SIO0 data input input/bus input/output

P12: SIO0 clock input/output

P13: SIO1 data output

P14: SIO1 data input input/bus input/output

P15: SIO1 clock input/output

P16: BUZ output

P17: Timer 1 output (PWM output)

Input/Output 6-Bit input port. Dual-purpose function

P70: INT0 input/HOLD release input/Nch-Tr. Output for watchdog timer

Input

Input

Reset terminal

Output

Input terminal for 32.768 KHz crystal oscillator

Connected to VDD when not used

Dual-purpose function

General-purpose input port P74

Output terminal for 32.768 KHz crystal oscillator

Open when not use

Dual-purpose function

General-purpose input port P75

—

Input

Output

—

Input

Input

Negative power terninal

Intput terminal for ceramic oscillator

Output terminal for ceramic oscillator

Positive power terninal

8-Bit input port. Dual-purpose function

AD input port (8 pcs.)

6-Bit input port. Dual-purpose function

P71: INT1 input/HOLD release input

P72: INT2 input/timer 0 event input

P73: INT3 input (input with noise filter)/ timer 0 event input

S0/PA0-

S7/PA7

S8/PB0-

S15PB7

S16/PC0-

S23/PC7

S24/PD0-

S25/PD1

VDD2

VSS2

Input/Output Segment output terminal for LCD display

Usable as general-purpose input/output port (PA)

Input/OUtput Segment output terminal for LCD display

Usable as general-purpose input/output port (PB)

Input/Output Segment output terminal for LCD display

Usable as general-purpose input/output port (PC)

Input/Output Segment output terminal for LCD display

Usable as general-purpose input/output port (PD)

—

—

Positive power terninal

Negative power terninal

S26/PD2-

S31/PD7

S32/PE0-

S39/PE7

S40/PF0-

S47/PF7

Input/Output Segment output terminal for LCD display

Usable as general-purpose input/output port (PD)

Input/Output Segment output terminal for LCD display

Usable as general-purpose input/output port (PE)

Input/Output Segment output terminal for LCD display

Usable as general-purpose input/output port (PF)

V1/PL4-

V3/PL6

Input Bias power terminal for LCD drive

Usable as general-purpose input/output port (PL)

COM0/PL0Input/Output Common output terminal for LCD display

COM3/PL3 Usable as general-purpose input/output port (PL)

P30-P31

VSS3

Input/Output

—

6-Bit input/output port. Input/output can be specified in 1-bit units

Negative power terninal

VDD3

P32-P35

— Positive power terninal

Input/Output 6-Bit input/output port. Input/output can be specified in 1-bit units

95-100 P02-P07 Input/Output 8-Bit input/output port. Input/output can be specified in 4-bit units

HOLD release input. Port 0 interrupt input

In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.

– 58 –

CD-K477W

ICD01 RH-iX0234AWZZ:System Microcomputer (IX0234AW) (1/2)

Pin No.

Port Name

Input/Output

Function

1-2

(2)*

3-10

(5~7)*

11

12

13

14

15

16

17

18

19-22

23-27

27-29

30-36

37-45

46

47-50

51

52-63

P16-P17

P30-37

P70

RES

XT1/P74

XT2/P75

VSS1

CF1

CF2

VDD1

P80-P83

P84-P87

P71-73

S0/T0-

S6/T6

S7/T7-

S15/T15

VDD3

S16-S20

VP

S21-S31

Input/Output

Input/Output

8-Bit input/output port. Input/output can be specified in 1-bit units

Dual-purpose function

P16: BUZ output

P17: Timer 1 output (PWM output)

8-Bit input/output port. Input/output can be specified in 1-bit units

Dual-purpose function

Nchannel open output: 15V withstand rating

Input/Output 4-Bit input/output port. Input/output can be specified in 1-bit units.

2-Bit input port. Dual-purpose functio

P70: INT0 input/HOLD release input/Nch-Tr. Output for watchdog timer

Input Reset terminal

Input

Output

Input terminal for 32.768 KHz crystal oscillator

Connected to VDD when not used

Dual-purrpose function

General-purpose input port P74

Output terminal for 32.768 KHz crystal oscillator

Dual-purrpose function

General-purpose input port P75

When not use. (Oscillatication specification) Open. (Port specification) Connect to VDD1.

Negative power terninal —

Input

Output

—

Input

Input

Intput terminal for ceramic oscillator

Output terminal for ceramic oscillator

Positive power terninal

4-Bit input/output port. Input/output can be specified in 1-bit units.

4-Bit input port. Dual-purrpose function

AD input port (8 pcs.)

4-Bit input/output port. Input/output can be specified in 1-bit units.

4-Bit input port. Dual-purrpose function

AD input port (8 pcs.)

Input 4-Bit input/output port. Input/output can be specified in 1-bit units.

4-Bit input port. Dual-purrpose function

P71: INT1 input/HOLD release input

P72: INT2 input/timer 0 event input

P73: INT3 input (input with noise filter)/ timer 0 event input

Output Fluorescent charcater display tube (VFD)display controller

Segment/timing shared output

Input/OUtput Fluorescent charcater display tube (VFD)display controller

Segment/timing shared output

Pull-down resistance built-in output

— Positive power terninal

Input/Output Fluorescent charcater display tube (VFD)display controller

Segment output

Dual-purrpose function

S16: High voltage withstand input port PC0

S17: High voltage withstand input port PC1

S18: High voltage withstand input port PC2

S19: High voltage withstand input port PC3

S20: High voltage withstand input port PC4

— Negative power terminal (Independent power supply only for fluorescent character display tube drive output)

(Power supply for pull-dowen resistores)

Input/Output Fluorescent charcater display tube (VFD)display controller

Segment output

Dual-purrpose function

S21: High voltage withstand input port PC5

S22: High voltage withstand input port PC6

S23: High voltage withstand input port PC7

S24: High voltage withstand input port PD0

S25: High voltage withstand input port PD1

S26: High voltage withstand input port PD2

S27: High voltage withstand input port PD3

S28: High voltage withstand input port PD4

S29: High voltage withstand input port PD5

S30: High voltage withstand input port PD6

S31: High voltage withstand input port PD7

In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.

– 59 –

CD-K477W

ICD01 RH-iX0234AWZZ:System Microcomputer (IX0234AW) (2/2)

Pin No.

Port Name

Input/Output

Function

64-71

72

73-80

(76~78)*

81-84

85-88

89

90

91-94

95-100

(98~100)*

S32-S39

VDD4

S40-S47

S48-S51

P00-P03

VSS2

VDD2

P04-P07

P10-P17

Input/Output Fluorescent charcater display tube (VFD)display controller

Segment output

Dual-purrpose function

S32: High voltage withstand input port PE0

S33: High voltage withstand input port PE1

S34: High voltage withstand input port PE2

S35: High voltage withstand input port PE3

S36: High voltage withstand input port PE4

S37: High voltage withstand input port PE5

S38: High voltage withstand input port PE6

S39: High voltage withstand input port PE7

— Positive power terninal

Input/Output Fluorescent charcater display tube (VFD)display controller

Segment output

Dual-purrpose function

S40: High voltage withstand input port PF0

S41: High voltage withstand input port PF1

S42: High voltage withstand input port PF2

S43: High voltage withstand input port PF3

S44: High voltage withstand input port PF4

S45: High voltage withstand input port PF5

S46: High voltage withstand input port PF6

S47: High voltage withstand input port PF7

Input/Output Fluorescent charcater display tube (VFD)display controller

Segment output

Dual-purrpose function

S48: High voltage withstand input port PG0

S49: High voltage withstand input port PG1

S50: High voltage withstand input port PG2

S51: High voltage withstand input port PG3

Input/Output 8-Bit input/output port. Input/output can be specified in 4-bit units.

HOLD release input. Port 0 interrupt input

N channel open output: 15V withstand rating

—

—

Negative power terninal

Positive power terninal

Input/Output 8-Bit input/output port. Input/output can be specified in 4-bit units.

HOLD release input. Port 0 interrupt input

N channel open output: 15V withstand rating

Input/Output 8-Bit input/output port. Input/output can be specified in 1-bit units

Dual-purpose function

P10: SIO0 data output

P11: SIO0 data input input/bus input/output

P12: SIO0 clock input/output

P13: SIO1 data output

P14: SIO1 data input input/bus input/output

P15: SIO1 clock input/output

P16: BUZ output

P17: Timer 1 output (PWM output)

In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.

– 60 –

FLD01 : VVKBJ614GK/-1 FL Display

12G 8G 7G 6G 5G 3G 2G 1G

CD-K477W

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

P14

P15

P16

P17

P18

P19

P8

P9

P10

P11

P12

P13

P1

P2

P3

P4

P5

P6

P7

P20

P21

P22

P23

P24

P25

P26

P27

11G 10G

12G

CO

9G 4G

S3 a h j k b

–

–

–

S6

S4

S5

11G

–

–

–

– p n d

DP

– g c e r f m m g b f c e r

S5

S3 a h j k p n d

DP

–

–

–

–

–

S6

S4

10G

–

–

–

B7 B14 B21 B7 B14 m g c e b f

S5

S3 a h j k n d r p

DP

–

–

–

–

–

S6

S4

9G

–

–

– g e f

S3

S4

S5 a

S6 r h j p n k b m c d

8G

DP

7G

–

– n d r p

DP

– m g c e b f a h j k

S6

S4

S5

S3

–

–

– p n e r d

DP

– f m g c k b

S6

S4

S5

S3 a h j

–

–

–

6G r p c e n d

DP

– b f m g j k

S6

S4

S5

S3 a h p n e r d

DP f m g c k b

S6

S4

S5

S3 a h j

CO p n e r d

DP

– f m g c k b

S6

S4

S5

S3 a h j

B1

B8

5G

S2

(2G)

–

–

–

4G

–

–

–

3G

–

–

B15

B1

2G 1G

–

–

–

–

–

–

–

–

–

–

–

–

B17

B2

B9

B16

B1

B8

B19

B4

B11

B18

B3B

B10

B15

S2

–

B7

B14

B21

B6

B13

B20

B5

B12

B10

–

B2

B9

B12

–

B4

B11

–

B3

–

B1

B8

–

S1

–

–

B7

B14

–

B6

B13

–

B5

B8

S1

(1G)

PIN No.

CONNECTION

47

F2

46

F2

45

NP

44

NP

43 42 41

12G 11G 10G

40

9G

39

8G

38

7G

37

6G

36

5G

35

4G

34

3G

33

2G

32

1G

31 30 29 28 27 26 25 24

P27 P26 P25 P24 P23 P22 P21 P20

PIN No.

CONNECTION

23 22 21 20 19 18 17 16 15 14

P19 P18 P17 P16 P15 P14 P13 P12 P11 P10

13

P9

12

P8

11

P7

10

P6

9

P5

8

P4

7

P3

6

P2

5

P1

4

NP

3

NP

2

F1

1

F1

Figure 61 FL DISPLAY

– 61 –