Panasonic KX-TGA931S Service manual

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Panasonic KX-TGA931S Service manual | Manualzz

ORDER NO. KM40801513CE

F13

Model No.

Telephone Equipment

KX-TG9341T

KX-TG9342T

KX-TG9343S

KX-TG9343T

KX-TG9344T

KX-TGA931S

KX-TGA931T

Expandable Digital Cordless Answering

System

Pearl Silver Version

Titanium Black Version

(for U.S.A.)

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© 2008 Panasonic Communications Co., Ltd. All rights reserved. Unauthorized copying and distribution is a violation of law.

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TABLE OF CONTENTS

PAGE

1 Safety Precautions----------------------------------------------- 4

1.1. For Service Technicians --------------------------------- 4

2 Warning -------------------------------------------------------------- 4

2.1. Battery Caution--------------------------------------------- 4

2.2. About Lead Free Solder (PbF: Pb free)-------------- 4

2.3. Discarding of P. C. Board-------------------------------- 5

3 Specifications ----------------------------------------------------- 6

4 Technical Descriptions ----------------------------------------- 7

4.1. US-DECT Description ------------------------------------ 7

4.2. Block Diagram (Base Unit_Main)---------------------- 9

4.3. Block Diagram (Base Unit_RF Part) -----------------10

4.4. Circuit Operation (Base Unit)-------------------------- 11

4.5. Block Diagram (Handset)-------------------------------20

4.6. Block Diagram (Handset_RF Part)-------------------21

4.7. Circuit Operation (Handset)----------------------------22

4.8. Circuit Operation (RF Part)-----------------------------26

4.9. Circuit Operation (Charger Unit) ----------------------27

4.10. Signal Route -----------------------------------------------28

5 Location of Controls and Components ------------------30

5.1. Controls -----------------------------------------------------30

5.2. Display ------------------------------------------------------30

6 Installation Instructions ---------------------------------------31

6.1. Connections------------------------------------------------31

6.2. Battery-------------------------------------------------------31

7 Operating Instructions-----------------------------------------33

7.1. Programmable Settings ---------------------------------33

7.2. Error Messages -------------------------------------------36

7.3. Troubleshooting-------------------------------------------37

8 Test Mode ----------------------------------------------------------41

8.1. Adjustment and Test Mode Flow Chart -------------41

9 Service Mode -----------------------------------------------------48

9.1. How to Clear User Setting------------------------------48

10 Troubleshooting Guide ----------------------------------------50

10.1. Troubleshooting Flowchart -----------------------------50

10.2. How to Replace the Flat Package IC ----------------63

10.3. How to Replace the LLP (Leadless Leadframe

Package) IC------------------------------------------------65

11 Disassembly and Assembly Instructions ---------------68

11.1. Disassembly Instructions -------------------------------68

11.2. How to Replace the Handset LCD -------------------72

12 Measurements and Adjustments---------------------------74

12.1. Things to Do after Replacing IC or X’tal ------------74

12.2. Base Unit Reference Drawing-------------------------75

12.3. Handset Reference Drawing---------------------------76

12.4. Frequency Table ------------------------------------------77

13 Schematic Diagram ---------------------------------------------79

13.1. For Schematic Diagram---------------------------------79

13.2. Schematic Diagram (Base Unit_Main) --------------80

13.3. Schematic Diagram (Base Unit_RF Part) ----------82

13.4. Schematic Diagram (Base Unit_Operation) -------83

13.5. Schematic Diagram (Handset_Main) ----------------84

13.6. Schematic Diagram (Handset_RF Part) ------------86

13.7. Schematic Diagram (Charger Unit) -----------------87

14 Printed Circuit Board-------------------------------------------89

14.1. Circuit Board (Base Unit_Main)-----------------------89

14.2. Circuit Board (Base Unit_RF Part) -------------------91

14.3. Circuit Board (Base Unit_Operation) ----------------93

14.4. Circuit Board (Handset_Main)-------------------------95

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PAGE

14.5. Circuit Board (Handset_RF Part) -------------------- 97

14.6. Circuit Board (Charger Unit)--------------------------- 98

15 Appendix Information of Schematic Diagram--------- 99

15.1. CPU Data (Base Unit) ---------------------------------- 99

15.2. CPU Data (Handset) ---------------------------------- 100

15.3. Explanation of IC Terminals (RF Part) ------------ 101

15.4. Terminal Guide of the ICs, Transistors and

Diodes ---------------------------------------------------- 102

16 Exploded View and Replacement Parts List --------- 103

16.1. Cabinet and Electrical Parts (Base Unit) --------- 103

16.2. Cabinet and Electrical Parts (Handset)----------- 104

16.3. Cabinet and Electrical Parts (Charger Unit) ----- 105

16.4. Accessories and Packing Materials --------------- 106

16.5. Replacement Parts List--------------------------------110

3

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1 Safety Precautions

1.1.

For Service Technicians

Repair service shall be provided in accordance with repair technology information such as service manual so as to pre-

vent fires, injury or electric shock, which can be caused by improper repair work.

1. When repair services are provided, neither the products nor their parts or members shall be remodeled.

2. If a lead wire assembly is supplied as a repair part, the lead wire assembly shall be replaced.

3. FASTON terminals shall be plugged straight in and unplugged straight out.

ICs and LSIs are vulnerable to static electricity.

When repairing, the following precautions will help prevent recurring malfunctions.

1. Cover plastic parts boxes with aluminum foil.

2. Ground the soldering irons.

3. Use a conductive mat on worktable.

4. Do not grasp IC or LSI pins with bare fingers.

2 Warning

2.1.

Battery Caution

1. Danger of explosion if battery is incorrectly replaced.

2. Replace only with the same or equivalent type recommended by the manufacturer.

3. Dispose of used batteries according to the manufacturer's Instructions.

2.2.

About Lead Free Solder (PbF: Pb free)

Note:

In the information below, Pb, the symbol for lead in the periodic table of elements, will refer to standard solder or solder that contains lead.

We will use PbF solder when discussing the lead free solder used in our manufacturing process which is made from Tin (Sn),

Silver (Ag), and Copper (Cu).

This model, and others like it, manufactured using lead free solder will have PbF stamped on the PCB. For service and repair work we suggest using the same type of solder.

Caution

• PbF solder has a melting point that is 50

°F ~ 70 °F (30 °C ~ 40 °C) higher than Pb solder. Please use a soldering iron with temperature control and adjust it to 700

°F ± 20 °F (370 °C ± 10 °C).

• Exercise care while using higher temperature soldering irons.:

Do not heat the PCB for too long time in order to prevent solder splash or damage to the PCB.

• PbF solder will tend to splash if it is heated much higher than its melting point, approximately 1100 °F (600 °C).

• When applying PbF solder to double layered boards, please check the component side for excess which may flow onto the opposite side (See the figure below).

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2.2.1.

Suggested PbF Solder

There are several types of PbF solder available commercially. While this product is manufactured using Tin, Silver, and Copper

(Sn+Ag+Cu), you can also use Tin and Copper (Sn+Cu), or Tin, Zinc, and Bismuth (Sn+Zn+Bi). Please check the manufacturer's specific instructions for the melting points of their products and any precautions for using their product with other materials.

The following lead free (PbF) solder wire sizes are recommended for service of this product: 0.3 mm, 0.6 mm and 1.0 mm.

2.3.

Discarding of P. C. Board

When discarding P. C. Board, delete all personal information such as telephone directory and caller list or scrap P. C. Board.

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KX-TG9341T/KX-TG9342T/KX-TG9343S/KX-TG9343T/KX-TG9344T/KX-TGA931S/KX-TGA931T

3 Specifications

Note:

• Design and specifications are subject to change without notice.

Note for Service:

Optional headset: KX-TCA60, KX-TCA86, KX-TCA92, KX-TCA93, KX-TCA94, KX-TCA95

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4 Technical Descriptions

4.1.

US-DECT Description

The frequency range of 1.92 GHz-1.93 GHz is used. Transmitting and receiving carrier between base unit and handset is same frequency. Refer to Frequency Table (P.77).

4.1.1.

TDD Frame Format

4.1.2.

TDMA system

This system is the cycles of 10 ms, and has 6 duplex paths, but maximum duplex communication path is 5 because of dummy bearer use.

In 1 slot 417 µs, the 10 ms of voice data is transmitted.

2 - Handsets Link

Traffic Bearer

A link is established between base unit and handset.

The state where duplex communication is performed.

Handset doesn't make up duplex in no free RF channels because of interference. (*1)

Dummy Bearer

Base unit sends Dummy-data to the all stand-by state handsets.

Handsets receive that data for synchronization and monitoring request from the base unit.

Base unit doesn't send Dummy bearer in no free RF channels because of interference. (*1)

Note:

(*1) It is a feature under FCC 15 regulation and for interference avoidance.

In the case of checking RF parts, it is better in least interference condition.

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4.1.3.

Signal Flowchart in the Radio Parts

Reception

A voice signal from TEL line is encoded to digital data "TXDATA" by DSP (IC501) in a base unit.

Then TXDATA goes to RF PART, and it's modulated to 1.9 GHz. The RF signal is amplified and fed to a selected antenna.

As for a handset RF, RF signal is received in two antennas.

RFIC (IC701) compares RF signal levels and selects the antenna to be used. Then RFIC down-converts to 864 kHz IF signal from RX signal in the selected antenna, and demodulates it to digital data "RXDATA".

DSP (IC501) converts RXDATA into a voice signal and outputs it to speaker.

Transmission

A voice signal from microphone is encoded to digital data "TXDATA" by DSP (IC501) in a handset.

Then TXDATA goes to RF PART, and it's modulated to 1.9 GHz. The RF signal is amplified and fed to a selected antenna.

As for a base unit RF, RF signal is received in two antennas.

RFIC (IC701) compares RF signal levels and selects the antenna to be used. Then RFIC down-converts to 864 kHz IF signal from RX signal in the selected antenna, and demodulates it to digital data "RXDATA".

DSP (IC501) converts RXDATA into a voice signal and outputs it to TEL line.

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4.2.

Block Diagram (Base Unit_Main)

KX-TG9341T/KX-TG9342T/KX-TG9343S/KX-TG9343T/KX-TG9344T/KX-TGA931S/KX-TGA931T

SP_LED

INUSE_LED

MSG_LED

ANSWER_LED

3 KEY 1

KEY B, C, D, E

SPP

SPN

CLK,RST

SI,SO,CS,

INT_1

CHARGE_DET

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4.3.

Block Diagram (Base Unit_RF Part)

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4.4.

Circuit Operation (Base Unit)

General Description:

(DSP, Flash Memory) is a digital speech/signal processing system that implements all the functions of speech compression, record and playback, and memory management required in a digital telephone answering machine.

The DSP system is fully controlled by a host processor DSP. The host processor provides activation and control of all that functions as follows.

4.4.1.

DSP (Digital Speech/Signal Processing: IC501)

Voice Message Recording/Play back

The DSP system uses a proprietary speech compression technique to record and store voice message in Flash Memory.

An error correction algorithm is used to enable playback of these messages from the Flash Memory.

DTMF Generator

When the DTMF data from the handset is received, the DTMF signal is output.

Synthesized Voice (Pre-recorded message)

The DSP implements synthesized Voice, utilizing the built in speech detector and a Flash Memory, which stored the vocabulary.

Caller ID demodulation

The DSP implements monitor and demodulate the FSK/DTMF signals that provide CID information from the Central Office.

Digital Switching

The voice signal from telephone line is transmitted to the handset or the voice signal from the handset is transmitted to the Telephone line, etc. They are determined by the signal path route operation of voice signal.

Block Interface Circuit

RF part, LED, Key scan, Speaker, Microphone, Telephone line.

4.4.2.

Flash Memory (IC601)

Following information data is stored.

Voice signal ex: Pre-recorded Greeting message, Incoming message

Settings ex: message numbers, ID code, Flash Time, Tone/Pulse

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4.4.3.

Power Supply Circuit

Function:

The power supply voltage from AC adaptor is converted to the desired voltage of each block.

Circuit Operation:

• Q300 and IC300: 4.0 V DCDC Converter

• IC331: 3.3 V Regulator

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4.4.3.1.

Charge Circuit

The voltage from the AC adaptor is supplied to the charge circuits.

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4.4.4.

Reset Circuit

Function:

This circuit is used to initialize the microcomputer when it incorporates an AC adaptor.

Circuit Operation:

When the AC Adaptor is inserted into the unit, then the voltage is shifted by IC331 and power is supplied to the DSP.

The set starts to operate when VCC goes up to 3.0 V or more in the circuit voltage diagram.

Note:

(*1) The initializing time of the DSP chip is 28 ms under normal conditions.

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4.4.5.

Telephone Line Interface

Telephone Line Interface Circuit:

Function

• Bell signal detection

• ON/OFF hook and pulse dial circuit

• Side tone circuit

Bell signal detection and OFF HOOK circuit:

In the idle mode, Q141 is open to cut the DC loop current and decrease the ring load. When ring voltage appears at the Tip (T) and Ring (R) leads (When the telephone rings), the AC ring voltage is transferred as follows:

T

→ L101 → R111 → C111 → Q111 → DSP pin 58 [BELL]

When the CPU (DSP) detects a ring signal, Q141 turns on, thus providing an off-hook condition (active DC current flow through the circuit). Following signal flow is the DC current flow.

T

→ L101 → D101 → Q141 → Q161 → R163 → R167 → D101 → L102 → P101 → R

ON HOOK Circuit:

Q141 is open, Q141 is connected as to cut the DC loop current and to cut the voice signal. The unit is consequently in an onhook condition.

Pulse Dial Circuit:

Pin 59 of DSP turns Q141 ON/OFF to make the pulse dialing.

Side Tone Circuit:

Basically this circuit prevents the TX signal from feeding back to RX signal. As for this unit, TX signal feed back from Q161 is canceled by the canceller circuit of DSP.

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4.4.6.

Auto Disconnect Circuit

Function:

This circuit is used to detect the fact that another telephone connected to the same line is OFF-HOOK while the unit is in a receiving status or OGM transmitting status.

Circuit Operation:

The voltage of pin 90 of IC501 is monitored. If a parallel-connected telephone is put into OFF HOOK status, the presence/ absence of a parallel connection is determined when the voltage changes by 0.2 V or more. When the set detects the parallelconnected telephone is OFF HOOK status, the line is disconnected.

You can enable or disable the Auto Disconnect function.

See Check Record (P.52)

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4.4.7.

Parallel Connection Detect Circuit

Function:

In order to disable call waiting and stutter tone functions when using telephones connected in parallel, it is necessary to have a circuit that judges whether a telephone connected in parallel is in use or not. This circuit determines whether the telephone connected in parallel is on hook or off hook by detecting changes in the T/R voltage.

Circuit Operation:

Parallel connection detection when on hook:

When on hook, the voltage is monitored at pin 86 of IC501. There is no parallel connection if the voltage is

1.65 V or higher, while a parallel connection is deemed to exist if the voltage is lower.

Parallel connection detection when off hook:

When off hook, the voltage is monitored at pin 90 of IC501; the presence/absence of a parallel connection is determined when the voltage changes by 0.2 V or more.

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4.4.8.

Calling Line Identification (Caller ID)/Call Waiting Caller ID

Function:

Caller ID

The caller ID is a chargeable ID which the user of a telephone circuit obtains by entering a contract with the telephone company to utilize a caller ID service. For this reason, the operation of this circuit assumes that a caller ID service contract has been entered for the circuit being used. The data for the caller ID from the telephone exchange is sent during the interval between the first and second rings of the bell signal. The data from the telephone exchange is a modem signal which is modulated in an FSK

(Frequency Shift Keying) * format. Data

"

1

"

is a 1200 Hz sine wave, and data

"

0

"

is a 2200 Hz sine wave. There are two types of the message format which can be received: i.e. the single message format and plural message format. The plural message format allows to transmit the name and data code information in addition to the time and telephone number data.

*: Also the telephone exchange service provides other formats.

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Call Waiting Caller ID

Calling Identity Delivery on Call Waiting (CIDCW) is a CLASS service that allows a customer, while off-hook on an existing call, to receive information about a calling party on a waited call. The transmission of the calling information takes place almost immediately after the customer is alerted to the new call so he/she can use this information to decide whether to take the new call.

Function:

The telephone exchange transmits or receives CAS and ACK signals through each voice RX/TX route. Then FSK data and

MARK data pass the following route.

Telephone Line

→ CN101 (T, R) → P101 → L101, L102 → C121, C122 → R121, R122 → IC501 (89, 88).

If the unit deems that a telephone connected in parallel is in use, ACK is not returned even if CAS is received, and the information for the second and subsequent callers is not displayed on the portable handset display.

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4.5.

Block Diagram (Handset)

IC541

EEPROM

X501

13.824 MHz

Q531

CHARGE

DETECT

Q362, Q364

CHARGE

CONTROL

CHARGE

Q361

D361

IC374

RST

IC371

2.7 V

REGULATOR

BATTERY

MIC

RST

SP

IC561

DC/DC

CONVERTER

LCD

BACK

LIGHT

Headset Jack

LED551-554

(KEY)

Q562

LED561

(ANT)

Q561

CN431

R436/R437

HEADSET

DETECT

Monitor SP

CI

HEADSET_DET

BL_LED

ANT_LIGHT

SPP2

SPPN

CI

CHG_DET

CHG_CTL

RESET

PDN

VCC

VCCA

VCCPA

MIP

MIN

SPP1

LCD BACKLIGHT

SPN

HSM

IC501

DSP

SYN_OUT

SYN_EN

SYN_CLK

SYN_DATA

SLOT_CTROL

RADIO_EN

TXDATA

RXDATA

LCD

KEYS

IC372

DC/DC

CONVERTER

IC373

DC/DC

CONVERTER

V_PA

V_RF

ANT

RF part

KX-TGA931 BLOCK DIAGRAM (Handset)

20

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4.6.

Block Diagram (Handset_RF Part)

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4.7.

Circuit Operation (Handset)

4.7.1.

Construction

The circuit mainly consists of DSP and RF part as shown in the block diagram.

4.7.1.1.

DSP: IC501

Function

• Battery Low, Power down detect circuit

• Ringer Generation

• Interface circuit

RF part, Speaker, Mic, LED, Key scan, LCD, Headset

Initial waves

Note:

(*1) The initializing time of the DSP chip is 20 ms under normal conditions.

4.7.1.2.

RF part

Mainly voice signal is modulated to RF, or it goes the other way.

4.7.1.3.

EEPROM: IC541

Setting data is stored.

ex: ID code, user setting

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4.7.2.

Power Supply Circuit

Voltage is supplied separately to each block.

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4.7.3.

Charge Circuit

When the handset is put on the cradle of the base unit, the power is supplied from CHARGE+ and CHARGE- terminals to charge the battery via R366 or Q361. The voltage between CHARGE+ and CHARGE- flows Q531 → pin 38 of IC501, where the charge is detected. Then IC501 calculates the battery consumption amount from the previous charge, and it controls Q361/

Q362/Q364 by pin 42 of IC501 until charging is complete. When charging is complete, the control pattern is switched to Trickle charging form from Operational charging form.

Charging form

4.7.4.

Ringer and Handset SP-Phone

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4.7.5.

Sending Signal

The voice signal from the microphone is input to DSP (90, 91). CN431 is the headset jack. When the headphone is connected, the R436/R437 detects it. The input from the microphone of the handset (MIM, MIP) is cut and the microphone signal from the headset is input to DSP (95). Also the power for the microphone is supplied from DSP (92) and the power is turned OFF on standby.

4.7.6.

Reception Signal

The voice signal from the base unit is output to DSP (98). This signal is led to the headset jack (CN431). The signal through the headset jack and the other signal output from DSP (97) drives the speaker. When the headset is inserted to the jack, the voice signal is cut at the jack, so the sound does not come out from the speaker, but from the headset only.

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4.8.

Circuit Operation (RF Part)

General Description:

RF part includes Transmitter and Receiver functions. Digital signals (Mainly voice data) that come from DSP, are modulated and are transmitted. On the other hand, received signals are demodulated and go out to DSP.

4.8.1.

Power Supply Circuit

As indicated below, the various voltages are supplied to each block.

V_PA, about 3.2 V at base unit or 3.1 V at handset, is supplied to the Power amplifier.

IC741 is 3.0 V at base unit or 2.7 V at handset Regulator and outputs VRF (3.0 V at base unit or 2.7 V at handset) by order of

RADIO_EN signal.

V_RF is approximately 4.0 V (Base Unit) or 3.1 V (Handset).

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4.9.

Circuit Operation (Charger Unit)

KX-TG9341T/KX-TG9342T/KX-TG9343S/KX-TG9343T/KX-TG9344T/KX-TGA931S/KX-TGA931T

The voltage from the AC adaptor is supplied to the charge circuits. Main charge (180~250 mA at the Battery) of maximum 7hours is started soon after the handset is placed on the charger unit. Then it changes to Trickle charge to prevent from overcharging.

Charging form

The route for this is as follows: DC+pin of J1(+)

→ F1 → D1 → R1 → CHARGE+pad → Handset → CHARGE-pad → DC-pin of

J1(-).

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4.10. Signal Route

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RF part signal route

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5 Location of Controls and

Components

5.1.2.

Handset

5.1.

Controls

5.1.1.

Base Unit

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5.2.

Display

6 Installation Instructions

6.1.

Connections

KX-TG9341T/KX-TG9342T/KX-TG9343S/KX-TG9343T/KX-TG9344T/KX-TGA931S/KX-TGA931T

6.2.

Battery

6.2.1.

Battery Installation and

Replacement

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6.2.2.

Battery Charge 6.2.4.

Panasonic Ni-MH Battery Performance (supplied batteries)

Note for service:

The battery strength may not be indicated correctly if the battery is disconnected and connected again, even after it is fully charged. In that case, by recharging the battery as mentioned above, you will get a correct indication of the battery strength.

6.2.3.

Battery Level

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7 Operating Instructions

7.1.

Programmable Settings

KX-TG9341T/KX-TG9342T/KX-TG9343S/KX-TG9343T/KX-TG9344T/KX-TGA931S/KX-TGA931T

7.1.1.

Programming by Scrolling through the Display Menus

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7.1.2.

Programming using the Direct Commands

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7.2.

Error Messages

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7.3.

Troubleshooting

KX-TG9341T/KX-TG9342T/KX-TG9343S/KX-TG9343T/KX-TG9344T/KX-TGA931S/KX-TGA931T

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8 Test Mode

8.1.

Adjustment and Test Mode Flow Chart

8.1.1.

TX-CW Mode for Base Unit

Note:

(*1) Refer to Check Table for RF part (P.58).

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8.1.2.

Test Link Mode for Base Unit

Note:

(*1) Refer to Test Link Mode for Handset (P.46). If you can not proceed to the next step, refer to Registering a Handset to a

Base Unit (P.56).

(*2) Refer to Check Table for RF part (P.58).

(*3) Operation for regular base unit. Refer to CHART1 in the TEST RANGE Check (P.59).

(*4) for factory use only

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8.1.3.

Adjustment Mode for Base Unit

KX-TG9341T/KX-TG9342T/KX-TG9343S/KX-TG9343T/KX-TG9344T/KX-TGA931S/KX-TGA931T

Cross Reference

Check and Adjust Frequency (Base Unit) (P.74)

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8.1.4.

TX-CW Mode for Handset

Note:

(*1) LCD displays the Channel number.

(exception: default/ CH00 = 0ch.)

(*2) Refer to Check Table for RF part (P.58).

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8.1.5.

RX-CW Test Mode for Handset

KX-TG9341T/KX-TG9342T/KX-TG9343S/KX-TG9343T/KX-TG9344T/KX-TGA931S/KX-TGA931T

Note:

(*1) LCD displays the Channel number.

(exception: default/ CH00 = 0ch.)

(*2) Refer to Check Table for RF part (P.58).

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8.1.6.

Test Link Mode for Handset

Note:

(*1) LCD displays the Channel number.

(exception: default/ CH00 = 0ch.)

(*2) If can not proceed to the next step, refer to Registering a Handset to a Base Unit (P.56).

(*3) for factory use only.

(*4) Refer to Check Table for RF part (P.58).

(*5) Operation for regular base unit. Refer to CHART1 in the TEST RANGE Check (P.59).

46

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8.1.7.

Adjustment Mode for Handset

KX-TG9341T/KX-TG9342T/KX-TG9343S/KX-TG9343T/KX-TG9344T/KX-TGA931S/KX-TGA931T

Cross Reference

(*1) Adjust Battery Low Detector Voltage (Handset) (P.74)

Note:

(*2) These are the default values.

(*3) These values may not be fixed depending on the battery strength.

47

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9 Service Mode

9.1.

How to Clear User Setting

Units are reset to the Factory settings by this operation (Erase recorded Voice messages, stored Phone numbers, Caller list and etc.).

This operation should not be performed for a usual repair.

9.1.1.

Base Unit

Note:

(*1) Telephone line must be connected.

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9.1.2.

Handset

KX-TG9341T/KX-TG9342T/KX-TG9343S/KX-TG9343T/KX-TG9344T/KX-TGA931S/KX-TGA931T

Note:

(*1) Be sure to short the battery terminals of the handset with a lead wire, etc. for 2 seconds for discharge after removing the battery.

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10 Troubleshooting Guide

10.1. Troubleshooting Flowchart

Cross Reference:

Check Power (P.51)

Check Playback (P.53)

Check Record (P.52)

Check Battery Charge (P.53)

Check Link (P.54)

Check the RF part (P.55)

Check Handset Transmission (P.62)

Check Handset Reception (P.62)

Check Caller ID (P.62)

Note:

(*1) When a user claims that the unit disconnects a call right after the greeting message and no incoming messages can be recorded, this symptom can not be reappeared with TEL simulator in the service center. In this case, try Check

Record (P.52) item (C), (D).

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10.1.1. Check Power

KX-TG9341T/KX-TG9342T/KX-TG9343S/KX-TG9343T/KX-TG9344T/KX-TGA931S/KX-TGA931T

Cross Reference:

Power Supply Circuit (P.12)

Reset Circuit (P.14)

Note:

Flash Memory is IC601.

DSP is IC501.

(*1) Refer to Specifications (P.6) for part number and supply voltage of AC adaptor.

(*2) Refer to Circuit Board (Base Unit_Main) (P.89).

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10.1.2. Check Record

BASE UNIT

A) Not record Greeting Message

B) Not record Incoming Message

C) How to change the Auto Disconnect activation (time)

Some Telephone Company lines (fiber or cable) ON Hook and OFF Hook voltages are lower than conventional lines, which may cause a malfunction of Auto Disconnect detection. To solve this problem, try changing the Auto Disconnect activation through the procedures below.

Auto Disconnect detect

Enable*1

Enable*1 [default]

Disable*2

Disable

CPC detect PROCEDURE at Stand-by mode

“STOP”+”GREETING CHECK”+”REC” simultaneously

“STOP”+”GREETING CHECK”+”VOL. " simultaneously

“STOP”+”GREETING CHECK”+”VOL. " simultaneously

Note:

*1 Both Auto Disconnect and CPC don't detect for the first 2 seconds.

*2 If the “Disable” is selected, even if the parallel-connected telephone is OFF HOOK, the line isn't disconnected.

D) How to change the VOX level

It makes easier to detect a small voice (caller) by raising the sensitivity of VOX level. Therefore, the recording of TAM is not turned off during a detection.

Normal [default]

6 dB Up

VOX Level sensitivity

Cross Reference:

Signal Route (P.28)

Telephone Line Interface (P.15)

Auto Disconnect Circuit (P.16)

Parallel Connection Detect Circuit (P.17)

Note:

PROCEDURE

Flash Memory is IC601.

DSP is IC501.

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10.1.3. Check Playback

KX-TG9341T/KX-TG9342T/KX-TG9343S/KX-TG9343T/KX-TG9344T/KX-TGA931S/KX-TGA931T

Cross Reference:

Power Supply Circuit (P.12)

10.1.4. Check Battery Charge

Note:

Flash Memory is IC601.

DSP is IC501.

(*1) Refer to Circuit Board (Base Unit_Main) (P.89).

Note:

Flash Memory is IC601.

(*1) Refer to Specifications (P.6) for part number and supply voltage of AC adaptor.

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10.1.5. Check Link

Note:

Flash Memory is IC601.

DSP is IC501.

(*1) Refer to Finding out the Defective part (P.55).

Cross Reference:

Check the RF part (P.55)

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10.1.6. Check the RF part

10.1.6.1. Finding out the Defective part

KX-TG9341T/KX-TG9342T/KX-TG9343S/KX-TG9343T/KX-TG9344T/KX-TGA931S/KX-TGA931T

After All the Checkings or Repairing

1. Re-register the checked handset to the checked base unit, and Regular HS to Regular BU.

Note:

(*1) HS: Handset

(*2) BU: Base Unit

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10.1.6.1.1. Registering a Handset to a Base Unit

10.1.6.1.2. Deregistering a Handset

10.1.6.1.3. Deregistering All Handsets by the Base Unit

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10.1.6.2. RF Check Flowchart

Each item (1 ~ 6) of RF Check Flowchart corresponds to Check Table for RF part (P.58).

Please refer to the each item.

Note:

(*1) Refer to Things to Do after Replacing IC or X’tal (P.74).

57

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10.1.6.3. Check Table for RF part

No.

Item

1 Link Confirmation Normal

HS, BU Mode [Normal Mode]

BU (Base Unit) Check

1. Register Regular HS to BU (to be checked).

2. Press [Talk] key of the Regular HS to establish link.

Check DSP interface. (*2) 2 Control signal confirmation

HS, BU Mode: [Normal Mode] (*1)

3

X

' tal Frequency confirmation (*8) Check X

' tal Frequency.

(13.824000 MHz ±100 Hz)

HS, BU Mode: [Adjustment] (*4)

4-1 TX confirmation

Regular HS Mode:

[Test RX_CW Mode] (*5)

↑ [AIR]

BU (to be checked) Mode:

[Normal Mode]

1. Place Regular HS 15 cm away from a checked BU.

2. Confirm "RXDATA" waveform of Regular

HS by Oscilloscope.

Please try to vary Regular HS CH from 00 ch to 04 ch to be matched to the BU dummy CH, then the waveform is verified.

(*6)

4-2 TX confirmation

Regular BU Mode:

[Normal Mode]

↑ [AIR]

HS (to be checked) Mode:

[TEST TX_CW Mode] (*5)

5-1 RX confirmation

Regular HS Mode:

[Test TX_CW Mode] (*5)

↓ [AIR]

BU (to be checked) Mode:

[Normal Mode]

5-2 RX confirmation

1. Place Regular HS 15cm away from a checked BU.

2. Confirm "RXDATA" waveform of the BU by

Oscilloscope. (*7)

When the BU scans TX_CW, RXDATA is

LOW.

Regular BU Mode:

[Normal Mode]

↓ [AIR]

HS (to be checked) Mode:

[TEST RX_CW Mode] (*5)

6 Range Confirmation Normal

HS, BU Mode: [Normal Mode]

1. Register Regular HS to BU (to be checked).

2. Press [Talk] key of the Regular HS to establish link.

3. Compare the range of the BU (being checked) with that of the Regular BU.

Note:

(*1)(*4)(*5) Adjustment and Test Mode Flow Chart (P.41)

(*2)(*3) RF-DSP Interface Signal Wave Form (P.60)

(*6) Handset Reference Drawing (P.76)

(*7) Base Unit Reference Drawing (P.75)

(*8) Things to Do after Replacing IC or X’tal (P.74)

HS (Handset) Check

1. Register HS (to be checked) to Regular

BU.

2. Press [Talk] key of the HS to establish link.

Check DSP interface. (*3)

Check signal at power-on.

Check X

' tal Frequency.

(13.824000 MHz ±100 Hz)

1. Place Regular BU 15 cm away from a checked HS.

2. Confirm "RXDATA" waveform of Regular

BU by Oscilloscope. (*7)

When Regular BU scans TX_CW, RXDATA is LOW.

1. Place Regular BU 15 cm away from a checked HS.

2. Confirm "RXDATA" waveform of the HS by

Oscilloscope.

Please try to vary the HS CH from 00 ch to

04 ch to be matched to Regular BU dummy

CH, then the waveform is verified. (*6)

1. Register HS (to be checked) to Regular

BU.

2. Press [Talk] key of the HS to establish link.

3. Compare the range of the HS (being checked) with that of the Regular HS.

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10.1.6.4. TEST RANGE Check

Circuit block which range is defective can be found by the following check.

Item

Range Confirmation TX TEST

(TX Power check)

HS, BU Mode:

[Test Link Mode] (*1)

BU (Base Unit) Check

1. Register Regular HS to BU (to be checked).

2. Set BU to “Test Link mode”.

3. Set Regular HS to “Test Link mode”.

*Set TX Power and RX Sensitivity of the BU and the

Regular HS by CHART1.

HS (Handset) Check

1. Register HS (to be checked) to Regular BU.

2. Set Regular BU to “Test Link mode”.

3. Set HS to “Test Link mode”.

*Set TX Power and RX Sensitivity of the HS and the

Regular BU by CHART1.

Range Confirmation RX TEST

(RX sensitivity check)

* At distance of about 5 m between HS and BU,

Link OK = TX Power of the BU is OK.

No Link = TX Power of the BU is NG.

1. Register Regular HS to BU (to be checked).

2. Set BU to “Test Link mode”.

3. Set Regular HS to “Test Link mode”.

HS, BU Mode:

[Test Link Mode] (*1) *Set TX Power and RX Sensitivity of the BU and Regular

HS by CHART1.

* At distance of about 5 m between HS and BU,

Link OK = TX Power of the HS is OK.

No Link = TX Power of the HS is NG.

1. Register HS (to be checked) to Regular BU.

2. Set Regular BU to “Test Link mode”.

3. Set HS to “Test Link mode”.

* Set TX Power and RX Sensitivity of Checking_HS and

Regular_BU by CHART1.

* At distance of about 5 m between HS and BU,

Link OK= RX Sensitivity of the BU is OK.

No Link = RX Sensitivity of the BU is NG.

* At distance of about 5 m between HS and BU,

Link OK= RX Sensitivity of the HS is OK.

No Link = RX Sensitivity of the HS is NG

CHART1: Setting of TX Power and RX Sensitivity in Range Confirmation TX TEST, RX TEST

BU (Base Unit) TX Power Check

BU (Base Unit) RX Sensitivity Check

BU (to be checked)

TX Power

High

High

RX Sens.

High

High

TX Power

High

Low

Regular_HS

RX Sens.

Low

High

HS (Handset) TX Power Check

HS (Handset) RX Sensitivity Check

HS (to be checked)

TX Power

High

High

RX Sens.

High

High

Note:

(*1) Adjustment and Test Mode Flow Chart (P.41)

TX Power

High

Low

Regular_BU

RX Sens.

Low

High

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10.1.6.5. RF-DSP Interface Signal Wave Form

RADEOEN

SLOT_CTRL

SYN_DATA

SYN_CLK

SYN_EN

Zoom

SYN_DATA

SYN_CLK

SYN_EN

2 ms

1

1 us

3 V

0 V

3 V

0 V

3 V

0 V

Pin Number

RADIOEN

SLOT_CTRL

SYN_DATA

SYN_CLK

SYN_EN

IC701 IC501 (BU)

21 24

22

23

19

30

24

25

29

28

400 ms

RADEOEN

SLOT_CTRL

SYN_DATA

SYN_CLK

SYN_EN

Zoom

RADEOEN

SLOT_CTRL

SYN_DATA

SYN_CLK

SYN_EN

40 ms

3 V

0 V

3 V

0 V

0.4

µs

3 V

0 V

3 V

0 V

3 V

0 V

Pin Number

RADIOEN

SLOT_CTRL

SYN_DATA

SYN_CLK

SYN_EN

IC701 IC501 (HS)

21 26

22 21

23

24

25

32

31

30

60

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RADEOEN

SLOT_CTRL

TR_DATA

Base unit sends a dummy slot and receves all 6 slots every frame in normal mode.

Pin Number (Base unit)

ITEM MODE

IC701 IC501 (BU)

[HS] or [REG HS]

TEST TX_CW

RADIOEN

21 24

[REG BU] or [BU]

Normal RX

SLOT_CTRL

22 19

TR (TX)-DATA

TR (RX)-DATA

23

23

18

34

RX TX (dummy ) (*3) RX

TX (dummy )

2 ms

Zoom

RX-DATA of BU is for checking for TX of HS or RX of BU.

When "TX-CW" mode in Handset, RX-DATA of base unit is LOW. (*1)

In the other case, RX-DATA of base unit is random. (*2)

40

µs

REDIOEN

SLOT_CTRL receiving TX_CW from handset random pattern because of no signal

3 V

0 V

3 V

0 V

3 V

0 V

3 V

0 V

Base unit bursts a dummy slot in normal mode in any channel.

Handset should be worked in test mode in same channel as base unit.

ITEM

[HS] or [REG HS]

[REG BU] or [BU]

MODE

TEST RX_CW

Normal Dummy

Pin Number (Handset)

TR (RX)-DATA

IC701 IC501 (HS)

23 36

RX-DATA of handset is LOW after receiving dummy from base unit.

RX-DATA just before that is same as dummy slot data of base unit.

200

µs preamble (32 bit)

RX

Zoom

Base unit ID (40 bit)

10

µs

3 V

0 V

SLOT_CTRL preamble (32 bit)

TX

Base unit ID (40 bit)

20

µs

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10.1.7. Check Handset Transmission

Cross Reference:

Signal Route (P.28)

10.1.8. Check Handset Reception

Cross Reference:

Signal Route (P.28)

Note:

When checking the RF part, Refer to Check the RF part

(P.55).

10.1.9. Check Caller ID

Cross Reference:

Telephone Line Interface (P.15)

Calling Line Identification (Caller ID)/Call Waiting Caller

ID (P.18)

Note:

• Make sure the format of the Caller ID service of the Telephone company that the customer subscribes to.

• It is also recommended to confirm that the customer is really a subscriber of the service.

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10.2. How to Replace the Flat Package IC

10.2.1. Preparation

• PbF (: Pb free) Solder

• Soldering Iron

Tip Temperature of 700 °F ± 20 °F (370 °C ± 10 °C)

Note: We recommend a 30 to 40 Watt soldering iron. An expert may be able to use a 60 to 80 Watt iron where someone with less experience could overheat and damage the PCB foil.

• Flux

Recommended Flux: Specific Gravity → 0.82.

Type

→ RMA (lower residue, non-cleaning type)

Note: See About Lead Free Solder (PbF: Pb free) (P.4).

10.2.2. How to Remove the IC

1. Put plenty of solder on the IC pins so that the pins can be completely covered.

Note:

If the IC pins are not soldered enough, you may give pressure to the P.C. board when cutting the pins with a cutter.

2. Make a few cuts into the joint (between the IC and its pins) first and then cut off the pins thoroughly.

3. While the solder melts, remove it together with the IC pins.

When you attach a new IC to the board, remove all solder left on the board with some tools like a soldering wire. If some solder is left at the joint on the board, the new IC will not be attached properly.

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10.2.3. How to Install the IC

1. Temporarily fix the FLAT PACKAGE IC, soldering the two marked pins.

*Check the accuracy of the IC setting with the corresponding soldering foil.

2. Apply flux to all pins of the FLAT PACKAGE IC.

3. Solder the pins, sliding the soldering iron in the direction of the arrow.

10.2.4. How to Remove a Solder Bridge

1. Lightly resolder the bridged portion.

2. Remove the remaining solder along the pins using a soldering iron as shown in the figure below.

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10.3. How to Replace the LLP (Leadless Leadframe Package) IC

10.3.1. Preparation

• PbF (: Pb free) Solder

• Soldering Iron

Tip Temperature of 700 °F ± 20 °F (370 °C ± 10 °C)

Note:

We recommend a 30 to 40 Watt soldering iron. An expert may be able to use a 60 to 80 Watt iron where someone with less experience could overheat and damage the PCB foil.

• Hot Air Desoldering Tool

Temperature: 608

°F ± 68 °F (320 °C ± 20 °C)

10.3.2. Caution

• To replace the IC efficiently, choose the right sized nozzle of the hot air desoldering tool that matches the IC package.

• Be careful about the temperature of the hot air desoldering tool not to damage the PCB and/or IC.

10.3.3. How to Remove the Shield Case

Note:

If you don’t have special tools (ex. Hot air disordering tool), conduct the following operations.

1. Cut the case along perforation.

2. Remove the cut part.

3. Cut the four corners along perforation.

4. Remove the reminds by melting solder.

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10.3.4. How to Install the Shield Case

Note:

• If you don’t have special tools (ex. Hot air disordering tool), conduct the following operations.

• Shield case’s No. : PNMC1002Z

1. Put the shield case.

2. Solder the surroundings.

10.3.5. How to Remove the IC

1. Heat the IC with a hot air desoldering tool through the P.C.Board.

2. Pick up the IC with tweezers, etc. when the solder is melted completely.

Note:

• Be careful not to touch the peripheral parts with tweezers, etc. They are unstable.

When it is hard to melt the solder completely, heat it with a hot air desoldering tool through the IC besides through the

P.C.Board.

3. After removing the IC, clean the P.C.Board of residual solder.

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10.3.6. How to Install the IC

1. Place the solder a little on the land where the radiation GND pad on IC bottom is to be attached.

2. Place the solder a little on the land where IC pins are to be attached, then place the IC.

Note:

• When placing the IC, the positioning should be done very carefully.

3. Heat the IC with a hot air desoldering tool through the P.C.Board until the solder on IC bottom is melted.

Note:

• Be sure to place it precisely, controlling the air volume of the hot air desoldering tool.

4. After soldering, confirm there are no short and open circuits with visual inspection.

10.3.7. How to Remove a Solder Bridge

When a Solder Bridge is found after soldering the bottom of the IC, remove it with a soldering iron.

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11 Disassembly and Assembly Instructions

11.1. Disassembly Instructions

11.1.1. Base Unit

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11.1.2. Handset

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11.1.3. Charger Unit

KX-TG9341T/KX-TG9342T/KX-TG9343S/KX-TG9343T/KX-TG9344T/KX-TGA931S/KX-TGA931T

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11.2. How to Replace the Handset LCD

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12 Measurements and Adjustments

12.1. Things to Do after Replacing IC or X’tal

12.1.1. Preparation

Equipment: Frequency counter

Check Point for measurement: BCK

Checking tolerance: 13.824 MHz ± 100 Hz (Base Unit)/13.824 MHz ± 100 Hz (Handset)

12.1.2. Check and Adjust Frequency (Base Unit)

1. Set up base unit in TEST mode.

2. Press following keys in order to Adjust Crystal mode. [LOCATOR], [LOCATOR], [LOCATOR], [ ], [ ]. Check BCK frequency.

3. If the BCK frequency is out of the checking tolerance (± 100 Hz), adjust to Adjustment tolelance (± 30 Hz) by pressing [ ] or

[ ] key.

Adjustment Tolerance: 13.824 MHz ± 30 Hz

4. Press [LOCATOR] key to write the new frequency factor in Memory.

5. Turn the power off. Then this value is available.

Cross Reference:

Adjustment Mode for Base Unit (P.43)

12.1.3. Check and Adjust Frequency (Handset)

1. Set DC power supply to 2.6 V.

2. Set up handset in TEST mode (Adjustment flow).

3. Press [1] key to Adjust Crystal mode (“Clock Adj.” is displayed on LCD). Check BCK frequency.

4. If the BCK frequency is out of the checking tolerance (± 100 Hz), adjust to Adjustment tolelance (± 30 Hz) by pressing [ ] or

[ ] key.

Adjustment Tolerance: 13.824 MHz ± 30 Hz

5. Press [TALK] key to write the new frequency factor in EEPROM.

6. Turn the power off. Then this value is available.

Cross Reference:

Adjustment Mode for Handset (P.47)

12.1.4. Adjust Battery Low Detector Voltage (Handset)

After handset's DSP (IC501) or EEPROM (IC541) replacement, Re-writing Battery Low voltage to EEPROM is required.

With following handset Adjustment Flow, adjust DC power supply and DC voltmeter by the procedure below.

1. Set DC power supply to 2.6 V.

2. Set up handset in TEST mode (Adjustment flow).

3. Press [1] key and [OFF] key to Adjust Batt Low mode. (“Bat Adj.” is displayed on LCD)

4. Change the voltage of the DC power supply to 2.34 V accurately. Check the voltage at P.C. board pads because some voltage drops occur due to the usage of long or thin cables.

5. Press [TALK] key twice to write voltage value in EEPROM.

6. Press [TALK] key twice to write charge value 1 in EEPROM.

7. Change the voltage of the DC power supply to 3.1 V accurately.

8. Press [TALK] key twice to write charge value 2 in EEPROM.

9. Change the voltage of the DC power supply to 3.6 V accurately.

10. Press [TALK] key twice to write primary battery detect value in EEPROM.

11. Turn the power off. Then this value is available.

Note:

Refer to Handset Reference Drawing (P.76) for connection of DC power supply and voltmeter.

Cross Reference:

Adjustment Mode for Handset (P.47)

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12.2. Base Unit Reference Drawing

When connecting the simulator equipment for checking, please refer to below.

DC

6.5 V

Spectrum Analyzer

Frequency Counter (*1)

BCLK

Oscilloscope

INT_1

ANT2_HOT

ANT2_GND

C757

DCP2

DCP

C-POWER

POWER

DCM2

DCM

ANT1_HOT

ANT1_GND

TEL

L1R

RING

GREEN

TIP L1T

YELLO

W

SDA

SCL

SPP

TXO

BCLK

DGND

BT2US

AGND

US2BT

MIN

JG

1

4

R612

R611

8 C601

C612

5

R603

5

C603

R602

C611

8

R533

4

DVCC

KEY_GND

1

C684

C685

C686

C689

C661

VCC

R364

C361

E

R365

Q362

UGND

UTX

JO

C422

URX UVCC

RA501

INT1

JS

JC

JI

MIP

E

KEYB

R131

R134

D133

SP

SPN

CHARGE+

D153

C152

R152

C120

E

R151

R114

KEY2

R181

R182

D113

C113

R113

CHG

KEY1

C181

KEY3/TE

CHARGE-

PbF

MIC1

PNLP1004/1005/1009/1010/1011/1012

A

8

SP

AF VOLT

METER

Oscilloscope

MIN MIP

MIC

Note:

(*1) is referred to No.3 of Check Table for RF part (P.58).

AF

OSC

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12.3. Handset Reference Drawing

When connecting the simulator equipment for checking, please refer to below.

A

MICM

MICP

RECEIVER

E E

R379

C379

Q563Q562

C514

C515

C525

C534

C501

C502

MICM-1

C352

C417

E

C532

C533

C540

1

R508

100

D364

Q361

MICP-1

C414

C415

R434R433

C508

R417

R532

E

Q531

Q364

R362

Q362

E

R363

E

R370

C363

4

R531

5

C353

C594

Q543

C351

C544

R543

E

76

8

F301

1

C366

75

R541

R542

R510

R525

25 51

C504

26

C511

50

8

5

C563

1

R560

D386

RA551

RA552

D424

1

4

R561

E

Q561

RA501

C509

IC371

1

D423 RA403

1

R374

C432

2

C373

C361

1

L431

5

D426

D427

C427

C434

C426

L434

C372

3

1

IC373

4

5

3 1

IC372

4 6

C362

L373

SP_PHONE

C570

C572

PNL-P1016/17/18

ANT1 or TGA935,936

F

ANT1_HOT1

ANT2

ANT2_GND

C793

R782

C791

C782

4

C742

3 1

IC741

5

C743

C738

D781

C711

L721

C721

C722

C712

C714

25

32

24

1

C713

C772

L795

C797

IC701

17

16

C756

8

C755

9

C761

C701

PbF

PQUP11558Z

KX-TGA93 R

ANT1

ANT1_HOT4

Note:

(*1) is referred to No.3 of Check Table for RF part (P.58).

ANT1_GND

ANT1_HOT3

ANT1_HOT2

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12.4. Frequency Table

Channel 0

Channel 1

Channel 2

Channel 3

Channel 4

Ch. (hex)

00

01

02

03

04

KX-TG9341T/KX-TG9342T/KX-TG9343S/KX-TG9343T/KX-TG9344T/KX-TGA931S/KX-TGA931T

TX/RX Frequency (MHz)

1928.448

1926.720

1924.992

1923.264

1921.536

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Memo

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13 Schematic Diagram

13.1. For Schematic Diagram

13.1.1. Base Unit (Schematic Diagram (Base Unit_Main))

13.1.1.1. Acoustic Testing Mode

Notes:

1. DC voltage measurements are taken with voltmeter from the negative voltage line.

2. The schematic diagrams may be modified at any time with the development of new technology.

13.1.2. Handset (Schematic Diagram (Handset_Main))

Notes:

1. DC voltage measurements are taken with an oscilloscope or a tester with a ground.

2. The schematic diagrams may be modified at any time with the development of new technology.

13.1.3. Charger Unit (Schematic Diagram (Charger Unit))

Notes:

1. DC voltage measurements are taken with voltmeter from the negative voltage line.

2. The schematic diagrams may be modified at any time with the development of new technology.

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13.2. Schematic Diagram (Base Unit_Main)

RF interface

3.2V

Q382

V_PA

(VPA)

V_RF

V_PA

BCLK

SYN_OUT

SYN_EN

SYN_CLK

SYN_DATA

SLOT_CTRL

RADIO_EN

RX_DATA

TX_DATA

RF_RSTN

DVCC

ANT1

ANT2

*C901

NC

GND

V_RF

4.0V

BCLK

C521 0.1u

R521 NC

SYN_OUT

SYN_EN

SYN_CLK

SYN_DATA

SLOT_CTRL

TXO

RXI

RADIO_EN

RX_DATA

TX_DATA

RF_RSTN

ANT1_HOT

ANT1_HOT2

ANT1

ANT3

ANT2_HOT

ANT2_HOT2

ANT2

ANT1_GND

ANT2_GND

*WBX03

NC

For TH12 series

23

FLASH

*IC601

1

SI

2

SCK

3

*RESET

4

*CS

SO

8

GND

7

VCC

6

*WP

5

R602

16M

NC

R603

NC

*C611 NC

1

E0

2

E1

3

E2

4

VSS

NC

*C612 NC

*IC611

EEPROM

VCC

8

*WC

7

SCL

6

SDA

5

DVCC

C501

0.1u

C503

0.1u

INT0

P15

45

34

35

36

37

38

29

30

31

32

33

26

27

28

44

45

46

47

48

39

40

41

42

43

49

50

GND2

VCC1

SYN_EN

SYN_CLK

SYN_DATA

NC8

NC9

FCCP15

RX_DATA

NC10

NC11

NC12

RF_RSTN

NC13

NC14

NC15

EROM_DATA

EROM_CLK

EROM_WP

F_SYNC

GND3

VCC2

INT0

FLASH_SCK

NC16

*IC501

VCC

RST

X501

13.824M

R509 1M

KEYB

KEY1

KEY2

KEY3/TE

KEY_GND

3.3V

L473 NC

L472 NC

SPN

(1)

(2)

(3)

(4)

3

4

*RA452

2.7k

*C457

33n

(5)

2

1

*C458

(6)

33n

97

96

95

94

93

100

99

98

92

91

90

89

88

87

86

85

84

83

82

81

80

79

78

77

76

SPN

VCCPA

NC(HSOUT)

LOUT0

LIN0

VCCA

HSMIP

HSMIN

GNDA

IN

DCIN2

CID_INN

CID_INP

VREF

DCIN1

PDN

GND5

MSG_LED

UART_RX

UART_TX

SDA

SCL

BANK2

INT1

ANS_

LED_1

(7)

(8)

(9)

C516 10u

C515 K1.0

*R591 NC

*R592 NC

INT1

R594 NC

R593 NC

(for FLASH BOOT)

C120

1000p

R533 4.7k

(10)

(11)

(12)

(13)

UVCC

URX

UTX

UGND

(14)

4

3

2

1

RA501

4.7k

7

8

5

6

(15)

(16)

(17)

28ms

*R665

NC

2

NC

1

*SW661

Power ON

(Reset)

*WBX02

6pin

NC: No Components

*WBX01

10pin

Operation Unit interface

80

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(14)

(15)

(16)

(17)

(5)

(6)

(1)

(2)

(3)

(4)

(7)

(8)

(9)

(10)

(11)

(12)

(13)

R154

1k

*R134 1k

4.0V

3.3V

IC331

5

6

7

8

VOUT

NC2

GND

CD

VIN

4

VDET

3

*RESET

2

NC1

1

4.0V CONVERTOR

L300 22uH

Q300

IC300

1

ON/*OFF

VIN

2

VSS

5

3 VOUT

EXT

DCDC_IC

4

RF_GND DIGITAL_GND

MIP

1

2

*MIC1

MIN

R178 C178

1k 0.022u

RX

120mVp-p

E

Q171

C

B

C173

K0.22

TX

800mVp-p

C

Q161

E

C165 NC

R164

2.7k

B

R161

100k

NC

*Q156

B

C

E

R181 390 R182 56 C184

K1.0

6.5~12V

Charge detection

*R365

C

1k

*Q362

B

E

E

C

*Q361

B

*R361

3.3k

*L362

470nH

CHARGE+

*R373 NC

*L371 6.8uH

*R363

L372

NC

NC

CHARGE-

C_DCP

REFERENCE

1XX : TEL LINE

3XX : POWER, CHARGE

4XX : RESET, MIC, SP

5XX : DSP, RF I/F

6XX : FLASH, KEY, LCD

7XX : RF(2.4G)

8XX : RF(5.8G)

D301

F301

3.0A

DCP2

DCP

CHARGE PAD

C_DCM

CHG electrostatic GND

SP electrostatic GND

DCM

DCM2

*Q141

R141

100k

Q142

B

C

E

C101 680p

D101

3

4

2

1

C102 680p

R121 390k

C121 680p

R122 390k

C122 680p

CID

L101 33u

L1T

L102

33u

*C115

NC

P101 22

L1R

*R115

NC

Test Signal

Frequency: 1kHz

Rx

(MIC Mute: ON)

-25dBm/600 IN

100mVp-p

Tx

-10dBm/600

700mVp-p

E

Q111

B

C

C111 0.047

C112 0.047

Bell detection

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KX-TG9341/9342/9343/9344 SCHEMATIC DIAGRAM (Base Unit_Main)

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13.3. Schematic Diagram (Base Unit_RF Part)

K0.1

NC C741

C742

K0.47uF

C743

K1uF

C712

D10p

NC C713

C711

C730

C731

C733

C732

NC

NC

NC

NC

L721

1uH

J120p C722

K1uF C714

DTEST

DETST1 DTST1

DTEST

REF_IN

VCC_DIV

VCC_PLL

32

31

30

29

28

27

26

25

33

SYN_OUT

SYN_EN

VDD_DIG_t

K0.1

C715

VDD_DIG_b

TRSW_n

VCC_FE

VDD_IF

VCC_IF

TX_n

TX_p

ANT

16

15

14

13

12

11

10

9

NC C736

NC C739

K0.01

C737 D10p C738

K0.1

C710

D10p

K1uF

D10p

K0.1

D10p

D10p

K0.1

C705

C706

K2.2uF

C703

C704

C701

C702

C707

C708

C757

NC

B3.3p

C752 D10p

C751

1.2p

C755

NC C756

NC C761

NC C762

NC R761

NC R763

J33p

560

C772

R772 560 R771 D10p C771

B2.0p

C775

B2.0p

C777

D10p C782

560 R782 560 R781

D10p C781

B1.0p

C791

B1.0p

C792

B1.0p

C795

B1.0p

C796

82

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13.4. Schematic Diagram (Base Unit_Operation)

2APVCC

MEG_LED

ANS_LED

KEYS_B

KEYIN1

KEYIN2

KEYIN3

KEYS_C

KEYS_D

KEYS_E

LED902

LED901

K

K

A

A

2

MEMO

1

ERASE

1 2

1

RPT

2

2

STOP

1

2

REC

1

1

UP

2

1

MSG2

2

1

MSG1

2

1

DOWN

2

2

CHK

1

1

ANS2

2

1

SKIP

2

LOCAT/INT

1 2

1

FLS

2 1

MUTE

2 1

CONF

2

SP_LED

KEYIN4

KEYIN5

KEYIN6

INUSE_LED

KEYS_A

LED904

K A

LED903

K A 1

1

2

1

4

2

1

7

2

1

*

2

REDIAL

1 2

1

2

2

1

5

2

1

8

2

1

0

2

1

HOLD

2

1

3

2

1

6

2

1

9

2

1

SHA

2

1

SP2

2

NC: No Components

KX-TG9341/9342/9343/9344 SCHEMATIC DIAGRAM (Base Unit_Operation)

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13.5. Schematic Diagram (Handset_Main)

RF circuit

RXI TXO BCLK

R540 NC

BCLK

C540 K0.1

TX_DATA

SLOT_CTRL

TX_DATA

SLOT_CTRL

ANT1_a

ANT1_b

ANT2

RX_DATA

RF_POWER

RADIO_EN

RF_RSTN

SYN_DATA

SYN_EN

SYN_CLK

SYN_OUT

V_PA

V_RF

3.1V

ANT1_HOT1

ANT1_HOT2

ANT1_HOT3

ANT1_HOT4

ANT2

ANT1_GND

ANT2_GND

RX_DATA

RF_POWER

RF control line

RF_RSTN

SYN_DATA

SYN_EN

SYN_CLK

SYN_OUT

Flash memory for booting

1

SI

2

SCK

3

*RESET

4

*CS

SO

8

GND

7

VCC

6

*WP

5

IC546

NC

TX_EN

BACK

Charge pump for

LCD back light

3.1V

DOWN

*C564 K0.1

MENU

UP

FLASH

*

0

SYA

NEXT

LEFT

7

8

9

HOLD RIGHT

TALK

4

5

6

OFF

SP

KIN_5

1

KIN_4

2

3

PAUSE

KIN_3

TE

KIN_2

KIN_1

3.1V

DSP Part (control circuit)

29

SYN_EN

SYN_CLK

30

31

SYN_DATA

32

RX_DATA

33

34

35

36

37

26

27

28

DB4

DB5

DB6

DB7

RESETB

43

44

45

46

47

48

38

39

40

41

42

49

50

RADIO_EN

HEAD_DET

GND6

VCC1

SYN_EN

SYN_CLK

SYN_DATA

NC4

TX_EN

NC5

RX_DATA

NC6

CHG_DET

NC7

LCD_BACK_LIGHT

NC8

CHG_CTL

NC9

DB4

DB5

DB6

DB7

GND7

VCC2

RESETB

IC501

*RA551

330

*RA552

NC

C573 K0.1

R573820K (1%) R572

430K (1%)

CI

100

99

98

97

96

95

94

93

92

91

90

89

83

82

81

80

79

78

88

87

86

85

84

77

76

SPPN

VCC4

SPN

SPP1

IBAT2

HSM

VCCA

GND10

MICBIAS

MIM

MIP

VREF

IBAT1

PDN

GND9

EE_WP

UART_RX

UART_TX

EE_SDA

EE_SCL

FB2

FB1

KIN_5

KIN_4

KIN_3

RST

X501

R525 NC

13.824MHz

R501 1M

(1)

(2)

(3)

(4)

(5)

R542 2.2k

R541 10k

TCK

TMS

TDI

TDO

EEPROM

Writing protection TR

E

C

Q543

B

(6)

*Q562 *Q563

NC

Q561

KEY_BACKLIGHT

(Amber)

LCD_BACKLIGHT

(Amber)

ANT_LED

(Amber)

White_LED LCD_BACKLIGHT

Parameter saving EEPROM

(7)

(8)

(9)

(10)

(11)

NC: No Components

84

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(5)

(1)

(2)

(3)

(4)

(6)

(7)

(8)

(9)

(10)

(11)

KX-TG9341T/KX-TG9342T/KX-TG9343S/KX-TG9343T/KX-TG9344T/KX-TGA931S/KX-TGA931T

C508

6.3V

10uF

R508 10

C503 K1.0

C594 NC

C526

K0.1

R505

R506

R507

NC

NC

NC

R509 100k

RX

TX

UART

*R431 NC

PDN

*R436 1k

*R433 1k *C433 K6800P

R417 390

*R434 2.2k

NC L511

AVR, PDN_IC

IC371

4

NC

3

ONOFF

2.7V

VSS

5

VOUT

2.7V

2

VIN

1

3.1V

*C435

10uF

*R435 NC

L431

L432

Voice circuit

SPPP SPPN

TEST SIGNAL

FREQUENCY: 1kHz

1

2

+

-

SP_PHONE

SP phone RX

(MIC Mute: ON)

1.8Vp-p/8

(Vol. Max)

*L434

3

4

RA403

68

2

1

NC

NC

Headset TX

50mVp-p/600

IN

*CN431

1

2

3

4

5

HEADSET_JACK

Headset RX

170mVp-p/150

(Vol. Max)

SPP

RECEIVER

1

2

+

-

Handset RX

(MIC Mute: ON)

590mVp-p/150

(Vol. Max)

SPM

C414

K6800P

3

4

RA401

1k

2

1

3

4

RA402

2

2.2k

1

C415

K6800P

MICM MICM-1

MIC-TP

2

1

MIC

MICP

MIC-TP

MICP-1

Handset TX

88mVp-p/600 IN

R374 220k

IC374

2.0V_Reset

1

2

OUT

VSS

4

3

VDD

NC

SP phone TX

30mVp-p/600 IN

R543 270k

C373 330u 6.3

C372 K1.0

DC/DC step-up circuit

3.0V

IC372

2.6~3.0V

L373

10uH

3

K A

4

VBAT1 VBAT2

2

S NC

5

F301

5.6n

1

G D

6

BATTP

VSS1 VSS2

VOUT

1

2

EXT

VDD

5

ON/*OFF

3

VSS

4

3.1V

IC373

BATTN

Charging detection

R370

1.2

D361

K A

R368

10k

R369

33k

Q364

B

C

E

R366 3.3k

Q361

R361 47k

Charging control circuit

L351 NC

CHG1

L352 NC

Q362

B

C

E

R363 47k

C

Q531

B

E

R531 NC

CHG2

NC: No Components

KX-TGA931 SCHEMATIC DIAGRAM (Handset_Main)

85

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KX-TG9341T/KX-TG9342T/KX-TG9343S/KX-TG9343T/KX-TG9344T/KX-TGA931S/KX-TGA931T

13.6. Schematic Diagram (Handset_RF Part)

NC C741

C742

K0.47uF

C743

K1uF

NC

NC

NC

NC

C731

C733

C732

C730

K0.1

C712

D10p

NC C713

C711

J120p

L721

1uH

C722

K1uF C714

DTEST

DTEST1

VCC_PLL

VCC_DIV

DTST1

DTEST

REF_IN

32

31

30

29

28

27

26

25

33

SYN_OUT

SYN_EN

VDD_DIG_t

K0.1

C715

VDD_DIG_b

TRSW_n

VCC_FE

VDD_IF

VCC_IF

TX_n

TX_p

ANT

14

13

12

11

16

15

10

9

NC C736

NC C739

K0.01

C737 D10p C738

K0.1

C710

D10p

K1uF

D10p

K2.2uF

K0.1

D10p

D10p

K0.1

C708

C705

C704

C706

C703

C701

C702

C707

NC

50

C757

B3.3p

C751

D10p C752

B1.2p

C755

NC C756

NC C761

NC C762

NC R761

NC R763

J33p

560

C772

R772 560 R771 D10p C771

C775

B2.0p

D10p C782

560 R782 560 R781

C777

B2.0p

D10p C781

NC C791

NC C792

NC C795

NC C796

86

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KX-TG9341T/KX-TG9342T/KX-TG9343S/KX-TG9343T/KX-TG9344T/KX-TGA931S/KX-TGA931T

13.7. Schematic Diagram (Charger Unit)

TP3

J1

1

2

F1

A

D1

K

R1 10 TP2

TP4

G

TP1

SCHEMATIC DIAGRAM (Charger Unit)

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87

KX-TG9341T/KX-TG9342T/KX-TG9343S/KX-TG9343T/KX-TG9344T/KX-TGA931S/KX-TGA931T

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88

14 Printed Circuit Board

14.1. Circuit Board (Base Unit_Main)

14.1.1. Component View

DC

KX-TG9341T/KX-TG9342T/KX-TG9343S/KX-TG9343T/KX-TG9344T/KX-TGA931S/KX-TGA931T

ANT2

ANT2_HOT2 ANT1_HOT2

ANT1

3.0A

F301

C901

C306

C301

C305

3

Q300

4

L300

R308

1

R303

R304

5

C304

IC300

C308

C797

L795

C793

C761

C701

9

16

C791

C756 C772

C755

C713

8

1

D781

C711

C712

32

C721

R782

C782

C738

C743

L721

IC701

5 4

C722

25 C714

17

24

1 3

C742

RF_Vcc

(3.0 V)

V_RF

(4.0 V)

D473

D472

R363

R373

L371

L473

L362

L472

L361

E

R361

D362

R362

E

R115

C142

R141

D143

C141

C342

D142

Q142

R145

R161 R162

C163 C162

C143

E

R144

5

8

C341

E

Q361

4

R664

1

L501

INT0

C503

R663

51

R661

R660

50

RST

IC501

C161

R163

R167

R165

C165

R164

R168

C164

C173 C174

R171

C178

E

C674

C688

C504

R594

75

R593

R592

76

C673

C515

C671 C672

C516

R671 R672

SW661

1

100

C459

C352

RA452

C458

C454

C518

C517

C456 C455

1

C_SCL

C_SDA

C521 R521

E

C381

P15

Q382

C_GND2

C382

US2BT2

AGND3

26

25

C531

C514 AGND2

BT2US2

7

MIC+

MIC-

RA451

C452

WBX01

KEYS_E KEYS_C KEYIN2 KEYS_B MEG_LED

1

KEYS_D KEYIN3 KEYIN1 ANS_LED 2APVCC

10

WBX02

KEYS_A

1

KEYIN6

INUSE_LED

KEYIN4

KEYIN5 SP_LED

6

KX-TG6311/21/TG9331/41/61/71H

PbF

PQUP11552

A

V_PA

(3.2 V)

Digital Vcc

Vcc

Reset

SP Vcc

Analog Vcc

KX-TG9341/9342/9343/9344 CIRCUIT BOARD (Base Unit_Main (Component View))

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KX-TG9341T/KX-TG9342T/KX-TG9343S/KX-TG9343T/KX-TG9344T/KX-TGA931S/KX-TGA931T

14.1.2. Bottom View

ANT2_HOT

ANT2_GND

DCP2

DCP

POWER

C-POWER

DCM2

DCM

TIP

L1T

ANT1_HOT

ANT1_GND

TEL

RING

L1R

GREEN

YELLOW

C757

Vcc

Digital Vcc

13.824 MHz

BCLK only for TGxxxx

Series only for TH12xx

Series

SDA

SCL

SP

SPP

TXO

BCLK

DGND

BT2US

AGND

US2BT

JG

JS

MIN

1

4

UGND

R612

R611

8 C601

R603

5

C603

R602

C611

C612

5

8

R533

4

DVCC

KEY_GND

C685

1

C684

C686

C689

C661

VCC

R364

R365

C361

Q362

E

UTX URX UVCC

RA501

INT1

JO

C422

JC

MIP

JI

E

KEYB

R131

R134

D133 CHARGE+

D153

R151

C152

R152

C120

E

R114

KEY2

R181

R182

D113

C113

R113

CHG

KEY1

C181

KEY3/TE

CHARGE-

PbF

SPN

MIC1

PNLP1004/1005/1009/1010/1011/1012

INT1

KX-TG9341/9342/9343/9344 CIRCUIT BOARD (Base Unit_Main (Bottom View))

A only for TH12xx

Series

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90

KX-TG9341T/KX-TG9342T/KX-TG9343S/KX-TG9343T/KX-TG9344T/KX-TGA931S/KX-TGA931T

14.2. Circuit Board (Base Unit_RF Part)

C797

L795

C793

C761

C701

9

16

C791

C756 C772

C755

C713

8

1

32

R782

D781

C782

C711

C712

C721

C738

C743

IC701

L721

C722

5 4

25

C714

17

24

1 3

C742

RF_Vc

(3.0 V)

V_RF

(4.0 V)

KX-TG9341/9342/9343/9344 CIRCUIT BOARD (Base Unit_RF Part (Component View))

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91

KX-TG9341T/KX-TG9342T/KX-TG9343S/KX-TG9343T/KX-TG9344T/KX-TGA931S/KX-TGA931T

Memo

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92

KX-TG9341T/KX-TG9342T/KX-TG9343S/KX-TG9343T/KX-TG9344T/KX-TGA931S/KX-TGA931T

14.3. Circuit Board (Base Unit_Operation)

14.3.1. Component View

PbF

KX-TG9341H

PQUP11555Z

PNLP1014Z

WBX01

WBX02

10

6

1

A

1

KX-TG9341/9342/9343/9344 CIRCUIT BOARD (Base Unit_Operation (Component View))

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93

KX-TG9341T/KX-TG9342T/KX-TG9343S/KX-TG9343T/KX-TG9344T/KX-TGA931S/KX-TGA931T

14.3.2. Bottom View

PbF

KX-TG9341H

ERASE

UP

LED901

MEMO

ANS2

STOP

RPT

MSG1 MSG2

LED902

SKIP

LOCAT/INT

DOWN

PQUP11555Z

PNLP1014Z

REC

CHK

1 2 3

4 5 6

CONF

7 8 9

MUTE

0 #

FLS

LED903

LED904

INUSE

REDIAL HOLD

KEYS_E KEYS_C KEYIN2 KEYS_B MEG_LED

MSG

KEYS_D KEYIN3 KEYIN1

KEYS_A

ANS_LED

KEYIN6

2APVCC

KEYIN4

INUSE_LED KEYIN5 SP_LED

SP2

SP

VCC

ANS

A

KX-TG9341/9342/9343/9344 CIRCUIT BOARD (Base Unit_Operation (Bottom View))

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94

14.4. Circuit Board (Handset_Main)

14.4.1. Component View

KX-TG9341T/KX-TG9342T/KX-TG9343S/KX-TG9343T/KX-TG9344T/KX-TGA931S/KX-TGA931T

ANT1_HOT4

ANT1_HOT3

ANT1 KX-TGA93 R

PQUP11558Z

PbF

C797

L795

C793

ANT1_GND

ANT1_HOT2

C761

C701

9

16

C791

C756 C772

C755

C713

8 1

D781

C711

C712

32

C721

L721

IC701

5

R782

C782

C738

C743

4

C722

IC741

25 C714

17

24

1 3

C742

ANT2_GND

ANT2

RF_Vcc

(2.7 V)

V_RF/V_PA

(3.1 V)

DSP_Vcc

(2.7 V)

V_BACK LIGHT

(5.0 V)

CI

PDN

(Power Down)

VBAT1

2.0~2.9 V

PNL-P1016/17/18

ANT1

ANT1_HOT1

C572

C570

SP_PHONE

F o r TGA935,936

L373

6 4

1 3

C362

IC372

4

5

IC373

3

C372

1

L434

C426

C427

C434

D427

D426

5

L431

1

C361

C373

2

C432

R374

1

1

IC371

R561

RA552

D386

1

R560

C563

5

8

RA403 D423

D424

4

1

RECEIVER

C509

E

RA551

Q561

RA501

51

C511

50

C504

26 Q563 Q562

25

R510

R525 C525

C515

E E

C508

100

R508

1

C514

C502

C501

C540

C533

C532

C534

75

76

C544

R543

E

R542

R541

Q543

8 5

C594

R417 R434 R433

C414

C415

MICP-1

D364

R370

Q364

1

F301

4

C363

E

R363

E

Q362

R362

C366

C353

Q531

R531

R532

E

C351

Q361

E

C417

MICM-1

C379

R379

C352

MICM

MICP

A

RST

(Reset)

BCLK

(13.824 MHz)

Analog_Vcc

(2.7 V)

KX-TGA931 CIRCUIT BOARD (Handset_Main (Component View))

95

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KX-TG9341T/KX-TG9342T/KX-TG9343S/KX-TG9343T/KX-TG9344T/KX-TGA931S/KX-TGA931T

14.4.2. Bottom View

KX-TGA93 R PbF

PQUP11558Z

CN3

LCD

LED557 LED556 LED555

LEFT MENU RIGHT

TALK

UP

OFF

SP

BACK

DOWN

NEXT

PAUSE

1 2 3

4

7

5

8

6

9

FLASH

0

#

HOLD

MIC

A

KX-TGA931 CIRCUIT BOARD (Handset_Main (Bottom View))

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96

14.5. Circuit Board (Handset_RF Part)

KX-TG9341T/KX-TG9342T/KX-TG9343S/KX-TG9343T/KX-TG9344T/KX-TGA931S/KX-TGA931T

C797

L795

C793

C761

C701

16

9

C756 C772

C755

C713

8

IC701

1

D781

C791

R782

C782

C711

C738

C743

C712

32

C721

L721

C722

5 4

25

C714

IC741

17

24

1

C742

3

RF_Vcc

(2.7 V)

V_RF/V_PA

(3.1 V)

KX-TGA931 CIRCUIT BOARD (Handset_RF Part (Component View))

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97

KX-TG9341T/KX-TG9342T/KX-TG9343S/KX-TG9343T/KX-TG9344T/KX-TGA931S/KX-TGA931T

14.6. Circuit Board (Charger Unit)

14.6.1. Component View

R1

J1

D1

14.6.2. Bottom View

A

CIRCUIT BOARD (Charger Unit (Component View))

TP4 (GND)

J1

D1

1

2

A

TP3

CIRCUIT BOARD (Charger Unit (Bottom View))

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98

KX-TG9341T/KX-TG9342T/KX-TG9343S/KX-TG9343T/KX-TG9344T/KX-TGA931S/KX-TGA931T

15 Appendix Information of Schematic Diagram

15.1. CPU Data (Base Unit)

15.1.1. IC501

34 RXI

35 NC

36 NC

37 NC

38 RF_RST

39 NC

40 NC

41 NC

42 NC

43 NC

44 NC

45 NC

46 GND

47 VCC

48 NC(INT0)

49 FLASH_SCK

50 NC

51 KEY_STB_E

52 KEY_STB_D

53 KEY_STB_C

54 KEY_STB_B

55 KEY_STB_A

56 NC

57 NC

58 BELL

59 RLY

PIN

1 GNDPA

Description

2 SPOUTP

3 BCLK

4 TXMOD

5 NC

6 XIN

7 XOUT

8 VDD

9 VCCIN

10 GND

11 Reset

12 FLASH_RST

13 FLASH_SO

14 FLASH_SI

15 FLASH_CS

16 NC

17 SYN_OUT

18 TX_DATA

19 SLOT_CTRL

20 NC

21 NC

22 NC

23 NC

24 RADIO_EN

25 NC

26 GND

27 VCC

28 SYN_LE1

29 SYN_CLK

30 SYN_DATA

31 RXEN

32 TXEN

33 NC

--

--

--

--

--

--

--

Middle

--

--

--

--

--

--

--

--

Not

--

--

--

--

Not

Not

Not

--

--

--

--

--

--

--

--

--

--

--

--

--

--

--

--

--

--

--

--

--

--

Middle

Middle

Middle

Middle

--

High_Z

--

--

--

--

--

--

--

--

D.I

D.O

D.O

D.O

High

--

--

--

D.O

Normal

D.O

--

D.O

D.O

--

--

D.O

D.O

D.O

D.O

GND --

VCC VCC

D.I.O

*

--

High

--

--

--

--

D.O

--

D.O

Active

D.O

Active

D.O

Active

D.O

Active

D.O

--

D.O

D.O

--

--

D.I

OFF

D.O Off Hook

D.I

High

D.O

High

D.O

High

D.O

--

D.O

D.O

--

--

D.O

--

D.O

Active

D.O

GND

--

--

VCC VCC

D.O

Not

D.O

High

D.O

High

D.O

Active

D.O

Active

D.O

--

I/O

GND

A.O

A.O

A.O

A.I

A.I

A.O

D.O

VCC

GND

--

--

D.I

Normal

* High

*

*

*

D.O

High

High

High

--

--

--

--

--

--

High

--

--

--

GND

--

--

Low

--

--

--

--

Low

--

--

--

WakeUp

--

--

--

--

--

--

--

--

--

--

--

ON

On Hook

--

GND

--

Active

Low

Low

Off

Off

--

Low

Low

Low

--

--

--

--

Not

--

GND

Reset

Low

Low

Low

Low

--

--

--

--

--

--

Low

--

--

--

74 NC

75 INUSE_LED

76 ANS_LED

77 NC(INT1)

78 NC

79 NC

80 NC

81 UART_TX

82 UART_RX

83 MSG_LED

84 GND

85 PDN

86 DCIN1

87 VREF

88 MIP

89 MIN

90 DCIN2

91 NC

92 GNDA

93 HSMIP

94 HSMIN

95 VCCA

96 Headset_MIC_in

97 LOUT0

98 NC

99 VCCPA

100 SPOUTN

PIN Description

60 KEY_IN6

61 KEY_IN5

62 KEY_IN4

63 KEY_IN3

64 KEY_IN2

65 KEY_IN1

66 GND

67 VCC

68 TCK

69 TMS

70 TDI

71 TD0

72 SP_LED

73 CHG_DET

A.I

A.I

VCC

A.I

A.O

A.O

VCC

A.O

GND

A.I

A.I

A.O

A.I

A.I

A.I

A.I

GND

D.I.O

D.O

D.O

D.O

D.O

--

D.O

High

D.I

D.I.O

High

--

--

--

--

--

--

--

--

--

--

--

--

--

--

I/O

D.I

D.I

D.I

D.I

High

Non

Non

Non

Non

D.I

D.I

Non

Non

GND --

VCC VCC

D.O

D.I

D.O

D.O

D.O

D.O

D.O

D.O

--

--

--

--

--

Off

Charge

--

--

--

--

--

--

--

--

--

--

High_Z

--

--

--

--

--

--

--

--

--

--

--

--

Off

--

Note:

• The mark “*” in the I/O column means the port is controlled by the firmware.

--

--

--

--

--

GND

--

--

--

On

--

--

--

--

Low

Low

On

--

--

--

--

--

--

--

--

Low

Key In

Key In

Key In

Key In

Key In

Key In

GND

--

--

--

--

--

On

On

Charge

--

On

--

--

--

--

--

--

--

--

--

--

--

--

--

--

--

--

--

--

--

--

Off

--

Off

Off

--

--

--

99

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15.2. CPU Data (Handset)

15.2.1.

IC501

PIN

1 GNDPA

Description

2 SPOUTP

3 BCLK

4 NC

5 XIN

6 XOUT

7 VDD

8 VCCIN

9 GND

10 GND

11 GND

12 GND

13 RESET

14 (FLASH_RESET)

15 (FLASH_SO)

16 (FLASH_SI)

17 (FLASH_CS)

18 KEY_BL LED

19 SYN_OUT

20 TX OUT

21 SLOT_CTRL

22 NC

23 RF_POWER

24 NC

25 RF_RESET

26 RADIO_EN

27 HEADSET_DET

I/O

GND

A.O

A.O

A.I

A.I

A.O

VDD

VCC VCC

GND

GND

A.I

A.O

High

--

--

--

--

--

--

--

--

--

--

--

D.I

Normal

D.O

--

D.O

--

D.O

High

D.O

D.O

--

On

D.I

High

D.O

High

D.O

High

D.O

--

D.O

High

D.0

D.O

D.O

D.I

--

On

On

Non

28 GND

29 VCC

30 SERIAL_LE

31 SERIAL_CLK

32 SERIAL DATA

33 RXEN

34 TXEN

35 NC

36 TR_DATA

37 NC

38 CHARGE_DET

GND --

VCC VCC

D.O

High

D.O

High

D.O

High

D.O

Active

D.O

Active

D.O

D.I

D.I

D.I

--

--

--

Off

Charge

39 NC

40 LCD_BL

41 NC

42 CHARGE_CNT

43 NC

44 DOT_LCD_D4

45 DOT_LCD_D5

46 DOT_LCD_D6

47 DOT_LCD_D7

48 GND

49 VCC

50 DOT_LCD_RESET

51 (FLASH_SCK)

52 CI

53 NC

54 NC

55 ANT_LED1

56 DOT_LCD_RS

57 DOT_LCD_RW_WR

D.O

Data

D.O

Read

58 DOT_LCD_E_RD D.O

Active

59 DOT_LCD_POWER_SW D.O

On

60 NC D.O

--

D.I

--

D.O

BL_ON

--

--

D.O

---

D.O

Trickle Normal

D.O

---

D.O

High

D.O

High

D.O

High

D.O

High

--

--

--

--

GND --

VCC VCC

D.O

Normal

D.O

High

D.O

D.O

D.O

D.O

--

--

--

On

--

--

--

--

--

--

--

--

--

--

--

--

--

--

--

--

--

--

--

--

--

--

--

--

--

BL_OFF

Normal

--

Normal

Low

Low

Low

Low

GND

--

Reset

Low

Normal

--

--

Off

Instruct

Write

Not

Off

Normal

Low

Low

Off

Off

Normal

--

--

On

Charge

Normal

Low

Normal

Off

Low

Low

Low

--

Low

--

Off

Off

Headset

In

GND

--

Low

Low

GND

--

--

Normal

--

--

--

--

GND

GND

--

--

Reset

Normal

--

--

--

--

--

--

--

--

--

--

--

--

--

--

--

--

--

--

--

--

--

High_Z

--

--

--

--

--

--

PIN

61 NC

62 NC

Description

63 KEYSTROBE_E

64 KEYSTROBE_D

65 KEYSTROBE_C

66 KEYSTROBE_B

67 KEYSTROBE_A

I/O

D.O

D.O

D.O

D.O

D.O

D.O

D.O

68 GND

69 VCC

GND --

VCC VCC

70 TEST_CLK D.I

71 TEST_MODE_SELECT D.I

--

--

72 TEST_DATA_IN

73 TEST_DATA_OUT

74 KEYIN1

75 KEYIN2

D.I

D.O

D.I

D.I

--

--

Non

Non

High

--

--

--

--

--

--

--

76 KEYIN3

77 KEYIN4

78 KEYIN5

79 (INT1)

80 (INT0)

81 EEPROM_CLK

82 EEPROM_DATA

83 UART_TX

84 UART_RX

85 EEPROM_WP

86 GND

87 PDN

88 Battlow

89 VREF

90 MIP

91 MIN

92 DCIN2

93 GNDA

94 VCCA

95 Headset_MIC_in

96 DCIN0

97 LOUT0

98 HSSPOUT

99 VCCPA

100 SPOUTN

GND

VCC VCC

A.I

A.I

A.O

A.O

--

--

--

--

--

VCC VCC

A.O

--

D.I

D.O

GND

A.I

A.I

A.O

A.I

A.I

A.I

D.I

D.I

D.I

D.O

Non

Non

Non

--

D.O

--

D.O

High

D.I.O

--

D.O

High

--

--

--

--

High

WP

--

--

--

100

--

--

--

--

Low

Write

GND

--

--

Key In

Key In

Key In

Normal

Normal

Low

Low

Low

--

--

--

--

GND

--

--

--

GND

--

--

--

--

--

Key In

Key In

Low

Normal

Normal

Active

Active

Active

Active

Active

--

--

--

--

--

--

--

--

--

--

--

High

--

--

--

--

--

--

--

--

--

--

--

--

--

--

--

--

--

--

--

--

--

High_Z

--

--

Not

Not

Not

Not

Not

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15.3. Explanation of IC Terminals (RF Part)

15.3.1.

IC701

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15.4. Terminal Guide of the ICs, Transistors and Diodes

15.4.1. Base Unit

15.4.2. Handset

15.4.3. Charger Unit

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16 Exploded View and Replacement Parts List

16.1. Cabinet and Electrical Parts (Base Unit)

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16.2. Cabinet and Electrical Parts (Handset)

Note:

(*1) This cable is fixed by welding. Refer to How to Replace the Handset LCD (P.72).

(*2) Refer to Handset (P.102) of Terminal Guide of the ICs, Transistors and Diodes.

(*3) Attach the SPACER (No. 129) to the exact location described above.

104

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16.3. Cabinet and Electrical Parts (Charger Unit)

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16.4. Accessories and Packing Materials

16.4.1. KX-TG9341T

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16.4.2. KX-TG9342T

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16.4.3. KX-TG9343S/T

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16.4.4. KX-TG9344T

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16.5. Replacement Parts List

1. RTL (Retention Time Limited)

Note:

The “RTL” marking indicates that its Retention Time is

Limited.

When production is discontinued, this item will continue to be available only for a specific period of time.

This period of time depends on the type of item, and the local laws governing parts and product retention.

At the end of this period, the item will no longer be available.

2. Important safety notice

Components identified by the mark indicates special characteristics important for safety. When replacing any of these components, only use specified manufacture's parts.

3. The S mark means the part is one of some identical parts.

For that reason, it may be different from the installed part.

4. ISO code (Example: ABS-94HB) of the remarks column shows quality of the material and a flame resisting grade about plastics.

5. RESISTORS & CAPACITORS

Unless otherwise specified;

All resistors are in ohms ( Ω) k=1000Ω, M=1000kΩ

All capacitors are in MICRO FARADS ( µF) p=µµF

*Type & Wattage of Resistor

16.5.1. Base Unit

16.5.1.1. Cabinet and Electrical Parts

Safety Ref.

No.

4

Part No.

Part Name & Description Remarks

PNKE1001Y3 CASE, CHARGE TERMINAL

(for KX-TG9341T) (for

KX-TG9342T) (for KX-

TG9343T),(for KX-

TG9344T)

PS-HB

7

8

5

6

9

10

PNJT1003Z CHARGE TERMINAL

PNBC1004Y1 BUTTON, ANSWER ON ABS-HB

PNBC1005Y1

PNBC1006Y1

BUTTON, ERASE

BUTTON, STOP

ABS-HB

ABS-HB

10

PNBC1007Y1 BUTTON, LOCATOR ABS-HB

PNBC1002Z1 BUTTON, NAVIGATOR KEY

(for KX-TG9343S)

ABS-HB

PNBC1002Z2 BUTTON, NAVIGATOR KEY

(for KX-TG9341T) (for

KX-TG9342T) (for KX-

TG9343T),(for KX-

TG9344T)

ABS-HB

11

12

12

13

PNHR1001Z GUIDE, BUTTON PS-HB

PNBC1001Z1 BUTTON, MESSAGE (for KX-

TG9343S)

AS-HB

PNBC1001Z2 BUTTON, MESSAGE (for KX-

TG9341T) (for KX-

TG9342T) (for KX-

TG9343T),(for KX-

TG9344T)

AS-HB

PNJK1009Y KEYBOARD SWITCH (for KX-

TG9343S)

13

14

14

15

16

17

18

19

20

20

21

22

22

23

24

25

PNJK1009Z KEYBOARD SWITCH (for KX-

TG9341T) (for KX-

TG9342T) (for KX-

TG9343T),(for KX-

TG9344T)

PNJK1010Y KEYBOARD SWITCH (for KX-

TG9343S)

PNJK1010Z KEYBOARD SWITCH (for KX-

TG9341T) (for KX-

TG9342T) (for KX-

TG9343T),(for KX-

TG9344T)

PS-HB

K2ECYZ000001

HOLDER

JACK, DC

PQJJ1T039Y JACK, MODULAR

PNLA1004Z ANTENNA

PQMG10025W RUBBER PARTS, MIC

PNKF1008Z2

PNKF1008Z1

CABINET COVER (for KX-

TG9343S)

PS-HB

CABINET COVER (for KXPS-HB

TG9341T) (for KX-

TG9342T) (for KX-

TG9343T),(for KX-

TG9344T)

PQHA10023Z RUBBER PARTS, FOOT CUSH-

ION

TG9343S)

PNGT1009Z NAME PLATE (for KX-

TG9341T) (for KX-

TG9342T) (for KX-

TG9343T),(for KX-

TG9344T)

PQXDZLDRS1 MAGNET ELECTRIC TRANS-

DUCER, SECURITY TAG

PQHG10756Z RUBBER PARTS

PQHS10722Y SPACER

Safety Ref.

No.

1

Part No.

PNKM1008Y2

1

2

3

4

Part Name & Description Remarks

PNKM1008Y1

CABINET BODY (for KX-

TG9343S)

PS-HB

CABINET BODY (for KXPS-HB

TG9341T) (for KX-

TG9342T) (for KX-

TG9343T),(for KX-

TG9344T)

L0AA04A00028 SPEAKER

PQHR11082Z GUIDE, SPEAKER PS-HB

PNKE1001Y1 CASE, CHARGE TERMINAL

(for KX-TG9343S)

PS-HB

16.5.1.2. Main P.C. Board Parts

Note:

(*1) When you have replaced IC501, IC601 or X501, make adjustments. Refer to Check and Adjust Frequency

(Base Unit) (P.74).

(*2) When replacing IC701, refer to How to Replace the

LLP (Leadless Leadframe Package) IC (P.65).

Safety Ref.

No.

Part No.

Part Name & Description

PCB1 PNWPTG9341TH MAIN P.C.BOARD ASS'Y

(RTL)

(ICs)

Remarks

110

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Safety Ref.

No.

Part No.

(TRANSISTORS)

Q111 2SC6054JSL TRANSISTOR(SI)

Q141 B1ACGP000008 TRANSISTOR(SI)

Q142 PQVTBF822T7 TRANSISTOR(SI)

Q161 2SD0874AS TRANSISTOR(SI)

Q171 2SC6054JSL TRANSISTOR(SI)

Q300 B1ZBZ0000065 TRANSISTOR(SI)

Q361 2SB1218A TRANSISTOR(SI)

Q362 UNR92A2J0L TRANSISTOR(SI)

Q382 B1ADGE000004 TRANSISTOR(SI)

(DIODES)

D101 PQVDMD5S DIODE(SI)

D113 MA111 DIODE(SI) S

D133 MA111 DIODE(SI) S

D143 MANV250GEL DIODE(SI)

D153 MA111 DIODE(SI) S

D301 B0JCME000035 DIODE(SI)

D361 MA8220 DIODE(SI) S

D362 B0ECKM000008 DIODE(SI)

D472 MAZ805100L DIODE(SI)

D473 MAZ805100L DIODE(SI)

D771 B0DDCL000001 DIODE(SI)

D781 B0DDCL000001 DIODE(SI)

(COILS)

L101 PQLQXF330K COIL S

L102 PQLQXF330K COIL S

L300 G1C220M00037 COIL S

L361 G1C6R8MA0072 COIL

L362 G1CR47J00005 COIL

L371 G1C6R8MA0072 COIL

L474 G1C6R8MA0072 COIL

L475 G1C6R8MA0072 COIL

L721 G1C1R0KA0096 COIL

L791 MQLRF3N9ZFB COIL

L795 MQLRF3N9ZFB COIL

(COMPONENTS PARTS)

S

(VARISTORS)

SA102 PQVDDSS301L VARISTOR (SURGE

ABSORBER)

S

SA103 PQVDDSS301L VARISTOR (SURGE

ABSORBER)

S

(RESISTORS)

R111 PQ4R10XJ104 100k S

R112 PQ4R10XJ104 100k S

R113 ERJ3GEYJ103 10k

R114 ERJ3GEYJ473 47k

R121 ERJ3GEYJ394 390k

R122 ERJ3GEYJ394 390k

R131 PQ4R18XJ106 10M S

R133 ERJ3GEYJ105 1M

R134 ERJ3GEYJ102 1k

R141 ERJ3GEYJ104 100k

R142 PQ4R18XJ272 2.7k S

R145 ERJ2GEJ222 2.2k

R151 ERJ3GEYJ106 10M

R152 ERJ3GEYJ335 3.3M

R154 ERJ3GEYJ102 1k

R160 ERJ3GEYJ820 82

R161 ERJ3GEYJ104 100k

R162 ERJ3GEYJ473 47k

R163 ERJ12YJ120 12

R164 ERJ3GEYJ272 2.7k

R165 ERJ3GEYJ273 27k

R167 ERJ12YJ270 27

R168 ERJ3GEYJ821 820

Part Name & Description Remarks

KX-TG9341T/KX-TG9342T/KX-TG9343S/KX-TG9343T/KX-TG9344T/KX-TGA931S/KX-TGA931T

Safety Ref.

No.

Part No.

Part Name & Description Remarks

R171 ERJ2GEJ220 22

R172 ERJ3GEYJ104 100k

R175 ERJ3GEYJ561 560

R176 ERJ2GEJ101 100

R178 ERJ2GEJ102 1k

R181 ERJ2GEJ391 390

R182 ERJ2GEJ560X 56

R303 ERJ3GEYJ221 220

R304 ERJ3GEYJ221 220

R308 ERJ3GEYJ121 120

R361 ERJ3GEYJ332 3.3k

R364 ERJ3GEYJ103 10k

R365 ERJ3GEYJ102 1k

R372 ERX2SJ6R8 6.8

R421 ERJ3GEYJ473 47k

R422 ERJ2GEJ102 1k

R509 ERJ3GEYJ105 1M

R533 ERJ2GEJ472X 4.7k

R671 ERJ2GEJ331 330

R672 ERJ2GEJ221

R673 ERJ3GEYJ181

220

180

R674 ERJ2GEJ271

R731 ERJ2GEJ101

R732 ERJ2GEJ101

R736 ERJ2GEJ391

R771 ERJ2GEJ561

R772 ERJ2GEJ561

R781 ERJ2GEJ561

R782 ERJ2GEJ561

270

100

100

390

560

560

560

560

L501 ERJ6GEY0R00 0

(CAPACITORS)

C101 F1B2H681A070

C102 F1B2H681A070

C111 F1J2A473A024

C112 F1J2A473A024

C113 PQCUV1A684KB

C120 ECUE1H102KBQ

C121 F1K2H681A008

C122 F1K2H681A008

C132 ECUV1H103KBV

C142 ECUV1H103KBV

C152 ECUV1H103KBV

680p

680p

0.047

0.047

0.68

0.001

680p

680p

0.01

0.01

0.01

C161 EEE1EA100WR 10

C163 ECUV1H100DCV 10p

C168 PQCUV1A225KB 2.2

C172 ECUE1H102KBQ 0.001

C173 ECUV1A224KBV 0.22

C176 PQCUV0J106KB 10

C178 ECUE1C223KBQ

C181 ECUE1A104KBQ

0.022

0.1

C184 ECUV1A105KBV 1

C300 PSEA1VXF470 47 S

C304 ECUV1A105KBV 1

C305 ECUV1H103KBV

C306 ECEA1CKS101 100

C308 ECUV1E104KBV

C331 ECUV1A474KBV

0.01

0.1

0.47

C341 ECEA0JK331 330

C342 ECUV0J105KBV 1

C352 ECUE1A104KBQ 0.1

C361 ECUE1H102KBQ 0.001

C381 ECUV1A105KBV 1

C382 PQCUV0J106KB

C422 ECUE1A104KBQ

10

0.1

C452 ECUE1A104KBQ 0.1

C454 ECUE1H100DCQ 10p

S

S

C455 ECUE1H100DCQ 10p

C457 ECUE1C333KBQ 0.033

C458 ECUE1C333KBQ 0.033

C459 ECUE1H102KBQ 0.001

C475 ECUE1H102KBQ 0.001

C472 ECUE1H100DCQ 10p

C473 ECUE1H100DCQ 10p

111

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Safety Ref.

No.

Part No.

Part Name & Description

C501 ECUE1A104KBQ 0.1

C503 ECUE1A104KBQ 0.1

Remarks

C504 ECUE1A104KBQ

C508 ECUE1H6R0CCQ

C509 ECUE1H6R0CCQ

C513 ECUE1A104KBQ

C514 PQCUV0J106KB

0.1

6p

6p

0.1

10

C515 ECUV0J105KBV 1

C516 PQCUV0J106KB 10

C517 ECUE1A104KBQ 0.1

C518 PQCUV0J106KB 10

C521 ECUE1A104KBQ 0.1

C531 ECUE1A104KBQ 0.1

C601 ECUE1A104KBQ 0.1

C660 ECUE1A104KBQ 0.1

C702 ECUE1A104KBQ 0.1

C701 ECUE1H100DCQ 10p

C703 ECUE1H100DCQ 10p

C704 ECUV1A225KB 2.2

C705 ECUE1H100DCQ 10p

C706 ECUE1A104KBQ 0.1

C707 ECUE1H100DCQ 10p

C708 ECUV1A105KBV 1

C710 ECUE1A104KBQ 0.1

C711 ECUE1H100DCQ 10p

C712 ECUE1A104KBQ 0.1

C714 ECUE0J105KBQ 1

C715 ECUE1A104KBQ 0.1

C721 ECUE1H101JCQ 100p

C722 ECUE1H121JCQ 120p

C737 ECUE1C103KBQ 0.01

C738 ECUE1H100DCQ 10p

C742 ECUV1A474KBV 0.47

C743 ECUV1A105KBV 1

C751 F1G1H3R3A562 3.3p

C752 ECUE1H100DCQ 10p

C753 ECUE1H1R0BCQ 1

C754 ECUE1A104KBQ 0.1

C755 F1G1H1R2A561 1.2p

C763 F1G1HR70A561 0.7p

C765 ECUE1H100DCQ 10p

C771 ECUE1H100DCQ 10p

C772 ECUE1H330JCQ 33p

C773 ECUE1H100DCQ 10p

C775 ECUE1H2R0BCQ 2p

C776 ECUE1H1R5BCQ 1.5p

C777 ECUE1H2R0BCQ 2p

C781 ECUE1H100DCQ 10p

C782 ECUE1H100DCQ 10p

C791 ECUE1H1R0BCQ 1

C792 ECUE1H1R0BCQ

C795 ECUE1H1R0BCQ

1

1

C796 ECUE1H1R0BCQ 1

C793 ECUE1H100DCQ 10p

C797 ECUE1H100DCQ 10p

(OTHERS)

MIC1 L0CBAY000016 MICROPHONE

E1 PNMC1002Z MAGNETIC SHIELD, CASE

E2 PNWHK06SS05N LEAD WIRE, PARALLEL WIRE

E3 PNWHK10SS05N LEAD WIRE, PARALLEL WIRE

(POSISTOR) S

F301 K5H302Y00003 FUSE

X501 H0J138500010 CRYSTAL OSCILLATOR S

16.5.1.3. Operational P.C. Board Parts

Safety Ref.

No.

Part No.

Part Name & Description

LED903 LNJ308G8JRA LED

LED904 PQVDBR1111C LED

Remarks

S

S

16.5.2. Handset

16.5.2.1. Cabinet and Electrical Parts

Safety Ref.

No.

101

101

102

103

Part No.

Part Name & Description Remarks

PNGP1002Z1

AS-HB

TGA931S)

PANEL, LCD (for KX-

TGA931T)

AS-HB

PNHS1002Z TAPE, DOUBLE SIDED

PNKM1006Y2 CABINET BODY (for KX-

TGA931S)

PS-HB

103

104

PNKM1006Y1 CABINET BODY (for KX-

TGA931T)

PS-HB

PNHR1005Z OPTIC CONDUCTIVE PARTS,

LED LENS

PS-HB

105

TGA931S)

105

106

107

108

109

110

111

112

113

114

114

115

115

TGA931T)

NET

L0AD02A00041 RECEIVER

PQHG10756Z RUBBER PARTS, RECEIVER

PQHS10722Y LCD

PNBC1008Y1 BUTTON, TALK ABS-HB

PNBC1009Y1 BUTTON, OFF

PNBC1010Y1 BUTTON, SP

ABS-HB

ABS-HB

PNBC1011Y1 BUTTON, PAUSE ABS-HB

PNBC1003Z1 BUTTON, NAVIGATOR KEY

(for KX-TGA931S)

ABS-HB

PNBC1003Z2 BUTTON, NAVIGATOR KEY

(for KX-TGA931T)

ABS-HB

PNJK1006X KEYBOARD SWITCH (for KX-

TGA931S)

PNJK1006Z KEYBOARD SWITCH (for KX-

TGA931T)

PNHX1036Z COVER, LCD SHEET

PNLA1005Z ANTENNA

116

117

118

119

120

121

122

123

124

125

125

126

126

127

128

129

130

130

131

131

PQHR11313Z

PQHG10729Z

GUIDE, SPEAKER

RUBBER PARTS, SPEAKER

ABS-HB

L0AD02A00026 SPEAKER

PQHS10622Z NET

PQJC10056X BATTERY TERMINAL

PNKE1002Z1 COVER, EP CAP (for KX-

TGA931S)

PNKE1002Z2 COVER, EP CAP (for KX-

TGA931T)

PNKF1006Z2 CABINET COVER (for KX-

TGA931S)

ABS-HB

PNKF1006Z1 CABINET COVER (for KX-

TGA931T)

ABS-HB

PQQT23182Z LABEL, ATTENTION

PNQT1057Z LABEL, BATTERY

PQHS10792Z SPACER, BATTERY

PNKK1001Z1 LID, BATTERY COVER (for

KX-TGA931S)

ABS-HB

PNKK1001Z2 LID, BATTERY COVER (for

KX-TGA931T)

ABS-HB

PNYNTGA931SR LID, BATTERY COVER ASS'Y

(for KX-TGA931S)

ABS-HB

PNYNTGA430BR LID, BATTERY COVER ASS'Y

(for KX-TGA931T)

ABS-HB

Safety Ref.

No.

Part No.

Part Name & Description

PCB2 PNLP1014Z OPERATIONAL

ASS'Y (RTL)

(DIODES)

P.C.BOARD

Remarks

LED901 PQVDBR1111C LED

LED902 PQVDBR1111C LED

S

S

16.5.2.2. Main P.C. Board Parts

Note:

(*1) When you have replaced IC501, IC541 or X501, make adjustments. Refer to Check and Adjust Frequency

(Handset) (P.74) and Adjust Battery Low Detector Volt-

age (Handset) (P.74).

112

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(*2) When replacing IC701, refer to How to Replace the

LLP (Leadless Leadframe Package) IC (P.65).

(*3) When replacing the handset LCD, See How to

Replace the Handset LCD (P.72).

Safety Ref.

No.

Part No.

Q361 B1ADGE000004

Q362 2SC6054JSL

Q364 2SC6054JSL

Q531 UNR921EJ0L

Q543 UNR9215J0L

Q561 UNR921MJ0L

Q562 UNR921MJ0L

D361 MA2ZD0200L

Part Name & Description Remarks

(RTL)

(ICs)

(TRANSISTORS)

TRANSISTOR(SI)

TRANSISTOR(SI)

TRANSISTOR(SI)

TRANSISTOR(SI)

TRANSISTOR(SI)

TRANSISTOR(SI)

TRANSISTOR(SI)

DIODE(SI)

D364 MA8043L DIODE(SI) S

D771 B0DDCL000001

D781 B0DDCL000001

LED551 B3ACB0000190

LED552 B3ACB0000190

(DIODES)

DIODE(SI)

DIODE(SI)

LED

LED

LED553 B3ACB0000190 LED

LED554 B3ACB0000190 LED

LED561 B3ACB0000190 LED

(COILS)

L373 G1C100MA0283 COIL

L434 PQLQR2KB113T COIL S

L721 G1C1R0KA0096 COIL

L791 MQLRF5N6ZFB COIL

L795 MQLRF5N6ZFB COIL

F301 PQLQR2M5N6K COIL S

(VARISTORS)

D412 D4ED1180A013 VARISTOR

D413 D4ED1180A013 VARISTOR

D423 D4ED1180A013 VARISTOR

D424 D4ED1180A013 VARISTOR

D426 D4ED1180A013 VARISTOR

D427 D4ED1180A013 VARISTOR

(COMPONENTS PARTS)

S

S

R361 ERJ2GEJ473 47k

R362 ERJ2GEJ561

(RESISTORS)

560

R363 ERJ2GEJ473 47k

R366 ERJ3GEYJ332 3.3k

R367 ERJ2GEJ121 120

R368 ERJ2GEJ103 10k

R369 ERJ2GEJ333 33k

R370 ERJ8GEYJ1R2 1.2

R374 ERJ2GEJ224 220k

R376 ERJ2GEJ105X 1M

R377 ERJ2GEJ225 2.2M

R378 ERJ2GEJ105X 1M

R379 ERJ2GEJ225 2.2M

R417 ERJ2GEJ391 390

R433 ERJ2GEJ102 1k

R434 ERJ2GEJ222 2.2k

KX-TG9341T/KX-TG9342T/KX-TG9343S/KX-TG9343T/KX-TG9344T/KX-TGA931S/KX-TGA931T

Safety Ref.

No.

Part No.

Part Name & Description Remarks

R436 ERJ2GEJ102 1k

R437 ERJ2GEJ104 100k

R501 ERJ3GEYJ105 1M

R508 ERJ3GEYJ100 10

R509 ERJ2GEJ104 100k

R526 ERJ2GEJ333 33k

R534 ERJ2GEJ103 10k

R541 ERJ2GEJ103 10k

R542 ERJ2GEJ222 2.2k

R543 ERJ2GEJ274 270k

R561 ERJ2GEJ101

R564 ERJ3GEYJ101

100

100

R572 D1BB4303A055 430k

R573 D1BB8203A055 820k

R731 ERJ2GEJ101 100

R732 ERJ2GEJ101 100

R736 ERJ2GEJ391 390

R771 ERJ2GEJ561 560

R772 ERJ2GEJ561 560

R781 ERJ2GEJ561 560

R782 ERJ2GEJ561 560

C361 F2A0J3310067

C362 ECUE1A104KBQ

C363 ECUE1A104KBQ

(CAPACITORS)

330

0.1

0.1

C366 ECUE1A104KBQ 0.1

C371 ECUV0J105KBV 1

C372 ECUV0J105KBV 1

C373 F2A0J3310068 330

C374 ECUE1A104KBQ

C377 ECUE1A104KBQ

C379 ECUE1A104KBQ

C386 ECUE1A104KBQ

0.1

0.1

0.1

0.1

C414 ECUE1E682KBQ 0.0068

C415 ECUE1E682KBQ 0.0068

C416 ECUE1E562KBQ 0.0056

C417 PQCUV0J106KB 10

C421 ECUV0J105KBV 1

C426 ECUE1H100DCQ 10p

C427 ECUE1H100DCQ 10p

C433 ECUE1E682KBQ 0.0068

C434 ECUE1H100DCQ 10p

C435 PQCUV0J106KB 10

C501 ECUE1H100DCQ 10p

C502 ECUE1H100DCQ 10p

C503 ECUE0J105KBQ 1

C504 ECUE1A104KBQ 0.1

C506 ECUE1A104KBQ 0.1

C508 PQCUV0J106KB 10

C510 ECUE0J105KBQ 1

C512 ECUE1C103KBQ 0.01

C514 PQCUV0J106KB 10

C515 ECUE1A104KBQ 0.1

C526 ECUE1A104KBQ 0.1

C531 ECUE1A104KBQ 0.1

C532 ECUE1H100DCQ 10p

C533 ECUE1H100DCQ 10p

C540 ECUE1A104KBQ 0.1

C541 ECUE1A104KBQ 0.1

C542 ECUE1H101JCQ 100p

C544 ECUE1A104KBQ 0.1

C562 ECUV1A105KBV 1

C564 ECUV1C104KBV 0.1

C565 ECUV0J105KBV 1

C570 ECUV1C474KBV

C571 ECUV1C474KBV

0.47

0.47

C572 ECUV1C474KBV 0.47

C573 ECUV1C104KBV 0.1

C596 ECUE1A104KBQ 0.1

C701 ECUE1H100DCQ 10p

C702 ECUE1A104KBQ 0.1

C703 ECUE1H100DCQ 10p

C704 ECUV1A225KB 2.2

113

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KX-TG9341T/KX-TG9342T/KX-TG9343S/KX-TG9343T/KX-TG9344T/KX-TGA931S/KX-TGA931T

Safety Ref.

No.

Part No.

Part Name & Description Remarks

C705 ECUE1H100DCQ 10p

C706 ECUE1A104KBQ 0.1

C707 ECUE1H100DCQ 10p

C708 ECUV1A105KBV 1

C710 ECUE1A104KBQ 0.1

C712 ECUE1A104KBQ 0.1

C714 ECUE0J105KBQ 1

C711 ECUE1H100DCQ 10p

C715 ECUE1A104KBQ 0.1

C721 ECUE1H101JCQ 100p

C722 ECUE1H121JCQ 120p

C737 ECUE1C103KBQ 0.01

C738 ECUE1H100DCQ 10p

C742 ECUV1A474KBV 0.47

C743 ECUV1A105KBV 1

C751 F1G1H3R3A562 3.3p

C752 ECUE1H100DCQ 10p

C753 ECUE1H1R0BCQ 1p

C754 ECUE1A104KBQ 0.1

C755 F1G1H1R2A561

C763 F1G1HR70A561

1.2p

0.7p

C765 ECUE1H100DCQ 10p

C771 ECUE1H100DCQ 10p

C772 ECUE1H330JCQ 33p

C773 ECUE1H100DCQ 10p

C775 ECUE1H2R0BCQ 2p

C776 ECUE1H1R5BCQ 1.5p

C777 ECUE1H2R0BCQ 2p

C781 ECUE1H100DCQ 10p

C782 ECUE1H100DCQ 10p

C793 F1G1H3R3A562 3.3p

C797 F1G1H3R3A562 3.3p

(OTHERS)

MIC100 L0CBAY000018 MICROPHONE

E101 L5DCBYY00020 LIQUID CRYSTAL DISPLAY

(*3)

PMMA-HB

PLATE

E103 PNHR1006Z GUIDE, LCD ABS-HB

SHEET

E105 PQJE10179V LEAD WIRE, FPC

E106 B3AFB0000211 LED

E108

CASE

PQWE10050Z BATTERY TERMINAL ABS-HB

X501 H0J138500010 CRYSTAL OSCILLATOR

16.5.3. Charger Unit

16.5.3.1. Cabinet and Electrical Parts

Safety Ref.

No.

Part No.

Part Name & Description Remarks

200-5 PNGT1021Y

TG9332T) (for KX-

TG9333T) (for KX-

TG9334T)

16.5.3.2. Main P.C. Board Parts

Safety Ref.

No.

Part No.

Part Name & Description Remarks

(RTL)

(DIODE)

D1 B0JAME000095 DIODE(SI)

(JACK)

J1 K2ECYB000001 JACK

(RESISTOR)

R1 ERG2SJ100E 10

(FUSE)

F1 K5H302Y00003 FUSE

16.5.4. Accessories and Packing Materials

Note:

(*1) You can download and refer to the Operating Instructions (Instruction book) on TSN Server.

16.5.4.1. KX-TG9341T

Safety Ref.

No.

Part No.

A2 PQJA10075Z

Part Name & Description Remarks

Unit)

(*1)

English)

(for Spanish)

A6 PNKE1004Z1 HANGER, BELT CLIP

A7 PNKL1001Z1 STAND, WALL MOUNT (for

Service,Black metallic)

ABS-HB

SP-HB

A7 PNKL1001Z2

P1 PQPP10152Z

STAND, WALL MOUNT (for

Service,Perl Silver)

SP-HB

PROTECTION COVER (for

Base Unit)

P2 XZB08X25B02 PROTECTION COVER (for

Handset)

P3 PNPK1015Z GIFT BOX

P4 PQXDDS400-8 MAGNET ELECTRIC TRANS-

DUCER, SECURITY TAG

16.5.4.2. KX-TG9342T

Safety Ref.

No.

200

Part No.

Part Name & Description Remarks

(for KX-TG9332S)

200 PNLC1001YT CHARGER UNIT ASS'Y (RTL)

(for KX-TG9332T) (for

KX-TG9333T) (for KX-

TG9334T)

200-1 PNKM1015Y3 CABINET BODY (for KX-

TG9332S)

PS-HB

200-1 PNKM1015Y2 CABINET BODY (for KX-

TG9332T) (for KX-

TG9333T) (for KX-

TG9334T)

PS-HB

Safety Ref.

No.

Part No.

Part Name & Description Remarks

A101

Unit)

A102 PQLV209T AC ADAPTOR (for Charger

Unit)

A103 PQJA10075Z

A104 PQQV10494Z CARD, CCP

(*1)

200-3 PNKF1012Z2 CABINET COVER (for KX-

TG9332S)

PS-HB

200-3 PNKF1012Z1 CABINET COVER (for KX-

TG9332T) (for KX-

PS-HB

TG9333T) (for KX-

TG9334T)

200-4 PQHA10023Z RUBBER PARTS, FOOT CUSH-

ION

200-5 PNGT1050Z

TG9332S)

English)

(for Spanish)

A108 PNKE1004Z1 HANGER, BELT CLIP

A109 PNKL1001Z1 STAND, WALL MOUNT (for

Service, Black metallic)

ABS-HB

SP-HB

A109 PNKL1001Z2

P101 PQPP10152Z

STAND, WALL MOUNT (for

Service, Perl silver)

SP-HB

PROTECTION COVER (for

Base Unit)

P102 XZB08X25B02 PROTECTION COVER (for

Handset)

114

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Safety Ref.

No.

Part No.

Part Name & Description Remarks

P103 XZB13X19C03 PROTECTION COVER (for

Charger Unit)

P104 PNPK1016Z GIFT BOX

P105 PQXDDS400-8 MAGNET ELECTRIC TRANS-

DUCER, SECURITY TAG

16.5.4.3. KX-TG9343S/T

Safety Ref.

No.

Part No.

Part Name & Description Remarks

KX-TG9341T/KX-TG9342T/KX-TG9343S/KX-TG9343T/KX-TG9344T/KX-TGA931S/KX-TGA931T

16.5.6. Screws

Safety Ref.

No.

Part No.

A XTB26+8GFJ

Part Name & Description

TAPPING SCREW

Remarks

B XTB2+8GFJ TAPPING SCREW

16.5.7. Fixtures and Tools

Note:

When replacing the Handset LCD, See How to Replace

the Handset LCD (P.72).

Unit)

A202 PQLV209T AC ADAPTOR (for Charger

Unit)

A203 PQJA10075Z

(*1)

Safety Ref.

No.

Part No.

PQZZ430PIR

PQZZ430PRB

Part Name & Description Remarks

TIP OF SOLDERING IRON

RUBBER OF SOLDERING IRON

English)

(for Spanish)

A207 PQQV10494Z CARD, CCP

A208 PNKE1004Z2 HANGER, BELT CLIP (for

KX-TG9343S)

ABS-HB

A208 PNKE1004Z1

A209 PNKL1001Z1

HANGER, BELT CLIP (for

KX-TG9343T)

ABS-HB

STAND, WALL MOUNT (for

Service,Black metallic)

SP-HB

A209 PNKL1001Z2

P201 PQPP10152Z

STAND, WALL MOUNT (for

Service,Perl silver)

SP-HB

PROTECTION COVER (for

Base Unit)

P202 XZB08X25B02 PROTECTION COVER (for

Handset)

P203 XZB13X19C03 PROTECTION COVER (for

Charger Unit)

TG9343S)

P204 PNPK1017Z GIFT

TG9343T)

BOX,(for KX-

P205 PNPD1006Z CUSHION

P206 PQXDDS400-8 MAGNET ELECTRIC TRANS-

DUCER, SECURITY TAG

16.5.5. KX-TG9344T

Safety Ref.

No.

Part No.

Part Name & Description

Unit)

A302 PQLV209T AC ADAPTOR (for Charger

Unit)

A303 PQJA10075Z

(*1)

Remarks

English)

(for Spanish)

A307 PQQV10494Z CARD, CCP

A308 PNKE1004Z1 HANGER, BELT CLIP

A309 PNKL1001Z1 STAND, WALL MOUNT (for

Service, Black metallic)

ABS-HB

SP-HB

A309 PNKL1001Z2

P301 PQPP10152Z

TAND, WALL MOUNT (for

Service, Perl silver)

SP-HB

PROTECTION COVER (for

Base Unit)

P302 XZB08X25B02 PROTECTION COVER (for

Handset)

P303 XZB13X19C03 PROTECTION COVER (for

Charger Unit)

P304 PNPK1018Z GIFT BOX

P305 PNPD1007Z CUSHION

P306 PQXDDS400-8 MAGNET ELECTRIC TRANS-

DUCER, SECURITY TAG

Y.S/N

KXTG9341T

KXTG9342T

KXTG9343S

KXTG9343T

KXTG9344T

KXTGA931S

KXTGA931T

115

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Key Features

  • Expandable system supports up to 6 handsets
  • Digital technology provides superior sound quality
  • Large, backlit LCD display for easy viewing
  • Speakerphone allows for hands-free conversations
  • Digital answering system with up to 30 minutes of recording time
  • Call screening and caller ID features for added convenience

Related manuals

Frequently Answers and Questions

How many handsets can I connect to the base unit?
The system supports up to 6 handsets.
Can I use the speakerphone feature?
Yes, the handset has a built-in speakerphone.
How long can the answering system record?
The answering system can record up to 30 minutes of messages.
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