Panasonic KX-TG9341T - Cordless Phone - Metallic Service Manual Download Page 115

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115

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

16.5.4.3. KX-TG9343S/T

16.5.5. KX-TG9344T

16.5.6. Screws

16.5.7. Fixtures and Tools

Note:

When replacing the Handset LCD, See

How to Replace

the Handset LCD

(P.72).

Y.S/N

KXTG9341T

KXTG9342T

KXTG9343S

KXTG9343T
KXTG9344T

KXTGA931S

KXTGA931T

P103 XZB13X19C03

PROTECTION COVER (for

Charger Unit)

P104 PNPK1016Z GIFT BOX

P105 PQXDDS400-8

MAGNET ELECTRIC TRANS-

DUCER, SECURITY TAG

Safety

Ref.

No.

Part No.

Part Name & Description

Remarks

A201 PQLV207T

AC ADAPTOR (for Base
Unit)

A202 PQLV209T AC ADAPTOR (for Charger

Unit)

A203 PQJA10075Z

CORD,

TELEPHONE

A204 PNQX1005X INSTRUCTION

BOOK

(*1)

A205 PNQW1005Z

LEAFLET, QUICK GUIDE
(for

English)

A206 PNQW1006Z

LEAFLET, QUICK GUIDE

(for Spanish)

A207 PQQV10494Z

CARD, CCP

A208 PNKE1004Z2

HANGER, BELT CLIP (for

KX-TG9343S)

ABS-HB

A208 PNKE1004Z1

HANGER, BELT CLIP (for

KX-TG9343T)

ABS-HB

A209

PNKL1001Z1

STAND, WALL MOUNT (for
Service,Black metallic)

SP-HB

A209

PNKL1001Z2

STAND, WALL MOUNT (for

Service,Perl silver)

SP-HB

P201 PQPP10152Z

PROTECTION COVER (for

Base Unit)

P202 XZB08X25B02

PROTECTION COVER (for
Handset)

P203 XZB13X19C03

PROTECTION COVER (for

Charger Unit)

P204 PNPK1072Z

GIFT BOX,(for KX-

TG9343S)

P204 PNPK1017Z

GIFT

BOX,(for

KX-

TG9343T)

P205 PNPD1006Z CUSHION

P206 PQXDDS400-8

MAGNET ELECTRIC TRANS-
DUCER, SECURITY TAG

Safety

Ref.

No.

Part No.

Part Name & Description

Remarks

A301 PQLV207T

AC ADAPTOR (for Base

Unit)

A302 PQLV209T AC ADAPTOR (for Charger

Unit)

A303 PQJA10075Z

CORD,

TELEPHONE

A304 PNQX1005X INSTRUCTION

BOOK

(*1)

A305 PNQW1005Z

LEAFLET, QUICK GUIDE

(for

English)

A306 PNQW1006Z

LEAFLET, QUICK GUIDE
(for Spanish)

A307 PQQV10494Z

CARD, CCP

A308 PNKE1004Z1

HANGER, BELT CLIP

ABS-HB

A309

PNKL1001Z1

STAND, WALL MOUNT (for

Service, Black metallic)

SP-HB

A309

PNKL1001Z2

TAND, WALL MOUNT (for
Service, Perl silver)

SP-HB

P301 PQPP10152Z

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

Safety

Ref.

No.

Part No.

Part Name & Description

Remarks

Safety

Ref.

No.

Part No.

Part Name & Description

Remarks

A XTB26+8GFJ

TAPPING SCREW

B XTB2+8GFJ TAPPING SCREW

Safety

Ref.

No.

Part No.

Part Name & Description

Remarks

PQZZ430PIR

TIP OF SOLDERING IRON

PQZZ430PRB

RUBBER OF SOLDERING IRON

Summary of Contents for KX-TG9341T - Cordless Phone - Metallic

Page 1: ...ying and distribu tion is a violation of law ORDER NO KM40801513CE F13 Telephone Equipment Model No 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 ...

Page 2: ...2 KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T ...

Page 3: ...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 ...

Page 4: ...quivalent 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 con tains lead We will use PbF solder when discussing the lead free solder used in our manufacturing process ...

Page 5: ...per Sn Cu or Tin Zinc and Bismuth Sn Zn Bi Please check the manufac turer s specific instructions for the melting points of their products and any precautions for using their product with other materi als 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 inform...

Page 6: ...X 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 ...

Page 7: ...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...

Page 8: ...ignal 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 ...

Page 9: ...1 BELL DETECT RLY BELL Q111 BELL DETECT Q361 Q362 LIN LOUT RF_PART CID_IN CID_IN IC501 DSP 4 0 V CONVERTOR MIN INUSE DETECT 2 INUSE DETECT 1 RECEIVE AMP DCIN 1 DCIN 2 IC331 RESET POWER_DOWN VCCIN VCC VCCA VCCPA INT_1 CHARGE_DET V_RF INT_1 5 VCC ANSWER_LED IC601 FLASH MEMORY KEYS IC300 Q300 R151 R152 R131 R133 Q171 V_RF VPA SI SO CS MSG_LED INUSE_LED SP_LED KEY 1 3 KEY B C D E SPN SPP MIP 3 3 V REG...

Page 10: ...F Note 1 Antenna Type wired dipole antenna KX TGTG9341 9342 9343 9344 BLOCK DIAGRAM Base Unit_RF Part PLL 13 824 MHz IC701 ANT1 1 ANT2 1 Control Logic Mixer A D Demodulator delta sigma Modulator D781 D771 BCLK SYN_OUT SYN_EN SYN_CLK SYN_DATA SLOT_CTROL RADIO_EN TXDATA RXDATA 4 0 V 3 0 V Divider 1 5 Regulator DSP IC501 IC741 ...

Page 11: ...ayback 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...

Page 12: ...G9343T KX TG9344T KX TGA931S KX TGA931T 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 ...

Page 13: ...13 KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T 4 4 3 1 Charge Circuit The voltage from the AC adaptor is supplied to the charge circuits ...

Page 14: ...icrocomputer 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 ...

Page 15: ... 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 a...

Page 16: ... 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 parallel connected telephone is OFF HOOK status the line is disconnected You can enable or disable the A...

Page 17: ...hether the telephone con nected 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 of...

Page 18: ...ircuit 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...

Page 19: ...fter 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 par...

Page 20: ...HG_DET WP CLK DATA KEYSTOROBE_A E KEYIN_1 5 Q531 CHARGE DETECT CHARGE Q361 D361 Q362 Q364 CHARGE CONTROL RST IC561 DC DC CONVERTER REGULATOR MIC SP Headset Jack CN431 R436 R437 LED561 HEADSET DETECT Monitor SP LCD KEYS RF part ANT X501 13 824 MHz EEPROM BATTERY Q561 LCD BACK LIGHT RST ANT IC372 DC DC CONVERTER IC373 DC DC CONVERTER SYN_OUT SYN_EN SYN_CLK SYN_DATA SLOT_CTROL RADIO_EN TXDATA RXDATA ...

Page 21: ...se unit and handset in Radio parts ANT1 wired dipole antenna KX TGA931 BLOCK DIAGRAM Handset_RF Part ANT2 patterned antenna PLL 13 824 MHz IC701 ANT1 1 ANT2 1 Control Logic Mixer A D Demodulator D781 D771 BCLK SYN_OUT SYN_EN SYN_CLK SYN_DATA SLOT_CTROL RADIO_EN TXDATA RXDATA 3 1 V 2 7 V RF_POWER Note delta sigma Modulator Regulator DSP IC501 Divider 1 5 IC741 ...

Page 22: ...ck 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 ...

Page 23: ...23 KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T 4 7 2 Power Supply Circuit Voltage is supplied separately to each block ...

Page 24: ...ery 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 ...

Page 25: ...ophone 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 th...

Page 26: ...e 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 sign...

Page 27: ... adaptor is supplied to the charge circuits Main charge 180 250 mA at the Battery of maximum 7 hours is started soon after the handset is placed on the charger unit Then it changes to Trickle charge to prevent from over charging 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 ...

Page 28: ...28 KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T 4 10 Signal Route ...

Page 29: ...29 KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T RF part signal route ...

Page 30: ...30 KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T 5 Location of Controls and Components 5 1 Controls 5 1 1 Base Unit 5 1 2 Handset 5 2 Display ...

Page 31: ...31 KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T 6 Installation Instructions 6 1 Connections 6 2 Battery 6 2 1 Battery Installation and Replacement ...

Page 32: ...ttery 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 6 2 4 Panasonic Ni MH Battery Perfor mance supplied batteries ...

Page 33: ...33 KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T 7 Operating Instructions 7 1 Programmable Settings 7 1 1 Programming by Scrolling through the Display Menus ...

Page 34: ...34 KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T 7 1 2 Programming using the Direct Commands ...

Page 35: ...35 KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T ...

Page 36: ...36 KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T 7 2 Error Messages ...

Page 37: ...37 KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T 7 3 Troubleshooting ...

Page 38: ...38 KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T ...

Page 39: ...39 KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T ...

Page 40: ...40 KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T ...

Page 41: ...KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T 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 ...

Page 42: ...ode 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 ...

Page 43: ...43 KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T 8 1 3 Adjustment Mode for Base Unit Cross Reference Check and Adjust Frequency Base Unit P 74 ...

Page 44: ...TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T 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 ...

Page 45: ...341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T 8 1 5 RX CW Test Mode for Handset Note 1 LCD displays the Channel number exception default CH00 0ch 2 Refer to Check Table for RF part P 58 ...

Page 46: ... 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 ...

Page 47: ...G9343T KX TG9344T KX TGA931S KX TGA931T 8 1 7 Adjustment Mode for Handset 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 ...

Page 48: ...ervice 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 ...

Page 49: ...KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T 9 1 2 Handset 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 ...

Page 50: ...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...

Page 51: ...TGA931S KX TGA931T 10 1 1 Check Power 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 sup ply voltage of AC adaptor 2 Refer to Circuit Board Base Unit_Main P 89 ...

Page 52: ...ted 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 Cross Reference Signal Route P 28 Telephone Line Interface P 15 Auto Disconnect Circuit P 16 Parallel Connection Detect Circuit P ...

Page 53: ...10 1 3 Check Playback Cross Reference Power Supply Circuit P 12 Note Flash Memory is IC601 DSP is IC501 1 Refer to Circuit Board Base Unit_Main P 89 10 1 4 Check Battery Charge Note Flash Memory is IC601 1 Refer to Specifications P 6 for part number and supply voltage of AC adaptor ...

Page 54: ...1T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T 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 ...

Page 55: ...TG9344T KX TGA931S KX TGA931T 10 1 6 Check the RF part 10 1 6 1 Finding out the Defective part 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 ...

Page 56: ...9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T 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 ...

Page 57: ...TG9343T KX TG9344T KX TGA931S KX TGA931T 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 ...

Page 58: ...e 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 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 5 1 RX confirmation Regular HS Mode Test TX_CW ...

Page 59: ...istance 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 Range Confirmation RX TEST RX sensitivity check HS BU Mode Test Link Mode 1 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 Regular HS by CHART1 At distance of about 5 m between HS and BU Link ...

Page 60: ...n Control signal for Handset Active normal mode after power on Pin Number IC701 IC501 HS 21 26 22 21 23 32 24 31 25 30 SYN_EN SYN_CLK RADIOEN SLOT_CTRL SYN_DATA SYN_CLK SYN_EN RADIOEN SLOT_CTRL SYN_DATA RADEOEN SLOT_CTRL SYN_DATA SYN_CLK SYN_EN SYN_DATA SYN_EN SYN_CLK RF IC IC701 DSP IC IC501 RF IC IC701 DSP IC IC501 RADEOEN SLOT_CTRL 40 ms 400 ms 0 4 µs RADEOEN SLOT_CTRL SYN_DATA SYN_CLK SYN_EN 2...

Page 61: ...should be worked in test mode in same channel as base unit Pin Number Handset TEST RX_CW IC701 IC501 HS Normal Dummy 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 3 Dummy slot data in TR DATA of Base Unit 3 Dummy slot data in TR DATA of Base Unit MODE MODE TR RX DATA TR RX DATA RADIOEN SLOT_CTRL TR TX DATA REG ...

Page 62: ...ute 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 Tele phone company that the customer subscribes to It is also recommended to confirm that the customer is really a subscriber of the se...

Page 63: ...n 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 Wh...

Page 64: ...ins 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 ...

Page 65: ...nd 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 d...

Page 66: ...older 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 ...

Page 67: ...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 W...

Page 68: ...68 KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T 11 Disassembly and Assembly Instructions 11 1 Disassembly Instructions 11 1 1 Base Unit ...

Page 69: ...69 KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T ...

Page 70: ...70 KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T 11 1 2 Handset ...

Page 71: ...71 KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T 11 1 3 Charger Unit ...

Page 72: ...72 KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T 11 2 How to Replace the Handset LCD ...

Page 73: ...73 KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T ...

Page 74: ...nt 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 pow...

Page 75: ...R TEL Y E L L O W L1T TIP C_DCP C_DCM RING SPP VCC SP SPN CHARGE CHARGE CHG ANT1_HOT ANT1_GND ANT2_HOT ANT2_GND MIN US2BT BT2US MIP IC601 IC611 JG JS JC JI JO KEY2 KEY3 TE E E E KEY1 KEYB INT1 TXO SDA SCL BCLK DGND UGND AGND MIC1 MIC MIC URX UTX UVCC RA501 R533 C422 R665 R157 R156 R154 Q111 R131 R134 D133 D153 R152 C152 R151 R114 R113 C113 C120 Q362 D113 R182 C181 R181 R122 R121 R111 R112 R133 C13...

Page 76: ... C705 C707 C703 C751 C708 C704 C702 C753 C752 C701 C761 C755 C756 C772 C713 C791 C711 C738 C743 C782 D781 R782 C797 L795 C793 C712 C721 C722 L721 C714 C742 C754 C762 C765 C771 C773 C764 C763 C775 C776 C777 C795 C792 L791 C796 C781 C736 C733 C732 C731 C730 C741 L741 L739 ANT1_HOT2 ANT1_HOT3 ANT1_HOT4 ANT1_HOT1 ANT1 F o r T G A 9 3 5 9 3 6 ANT1_GND IC741 IC701 ANT2_GND ANT2 ANT1 8 9 16 17 24 25 32 1...

Page 77: ...G9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T 12 4 Frequency Table Ch hex TX RX Frequency MHz Channel 0 00 1928 448 Channel 1 01 1926 720 Channel 2 02 1924 992 Channel 3 03 1923 264 Channel 4 04 1921 536 ...

Page 78: ...78 KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T Memo ...

Page 79: ...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 voltmete...

Page 80: ... 8u L475 Q382 1k R422 NC C901 ANT3 13 824M X501 NC R595 NC R596 ANT1_HOT2 ANT2_HOT2 P15 10p C472 10p C473 ANT1 ANT2 270 R674 220 R672 L501 0 1000p C475 4 NC TXMOD 5 NC1 6 XIN 7 XOUT 8 VDD 9 VCCIN 10 GND1 11 RSTN 12 FLASH_RE 13 FLASH_SO 14 FLASH_SI 15 FLASH_CS 16 NC2 17 SYN_OUT 18 TX_DATA 19 SLOT_CTRL 20 NC3 21 NC4 22 NC5 29 SYN_CLK 30 SYN_DATA 31 NC8 32 NC9 33 FCCP15 34 RX_DATA 35 NC10 36 NC11 37 ...

Page 81: ...8 NC C182 NC C183 F301 3 0A C101 680p C102 680p NC R115 6 3 330u C341 16 100u C306 DCP DCM L1T L1R 0 1u C452 Q156 NC B C E D361 22V A K Q362 B C E D142 NC A K Q111 B C E D113 A K Q161 B C E Q171 B C E D133 A K D153 A K NC R362 C_DCP C_DCM R372 6 8 NC L372 NC R373 470nH L362 C331 K0 47 100k R172 K1 0 C342 K0 01 C152 10M R151 D300 NC Q300 D301 390 R181 56 R182 C181 0 1u 27 4532 R167 22 R171 MIC1 1 2...

Page 82: ...NC C730 NC C736 NC R763 NC R762 NC R761 NC R715 NC C739 NC C764 D771 1 2 3 D781 1 2 3 K1uF C714 3 0V 1 VIN 2 VSS 3 CE 5 VOUT 4 NC B1 0p C792 B1 0p C796 3 9n L795 3 9n L791 B2 0p C777 B2 0p C775 B1 5p C776 B3 3p C751 D10p C765 B0 7p C763 1 VCC_VCO 2 PAEN 9 TX_p 3 ATST_p 4 ATST_n 5 ANT_n 6 TRSW 7 Rxp 8 Rxn 10 TX_n 11 TRSW_n 12 ANT 13 VCC_FE 14 VDD_IF 15 VCC_IF 16 VDD_DIG_b 17 VCC_DIG 18 RSTN 19 VCC_...

Page 83: ... 1 2 MUTE 1 2 4 1 2 SHA 1 2 ANS2 1 2 STOP 1 2 ERASE 1 2 REC 1 2 CHK 1 2 HOLD 1 2 SP2 1 2 VCC MSG ANS INUSE SP MSG2 1 2 MSG1 1 2 SKIP 1 2 DOWN 1 2 RPT 1 2 UP 1 2 LOCAT INT 1 2 LED902 A K LED901 A K LED904 A K KEYIN1 ANS_LED KEYIN5 KEYIN3 KEYS_A INUSE_LED KEYIN2 KEYIN6 2APVCC KEYS_E SP_LED KEYS_B MEG_LED KEYS_C KEYIN4 KEYS_D LED903 A K KX TG9341 9342 9343 9344 SCHEMATIC DIAGRAM Base Unit_Operation N...

Page 84: ... XIN 6 XOUT 7 VDD 8 VCCIN 9 GND2 10 GND3 11 GND4 12 GND5 13 RST 14 FL_RST 15 FL_DO 16 FL_DI 17 FL_CS 18 BL_LED 19 SYN_OUT 20 TX_DATA 21 SLOT_CTRL 22 NC2 29 VCC1 30 SYN_EN 31 SYN_CLK 32 SYN_DATA 33 NC4 34 TX_EN 35 NC5 36 RX_DATA 37 NC6 38 CHG_DET 39 NC7 40 LCD_BACK_LIGHT 41 NC8 42 CHG_CTL 43 NC9 44 DB4 45 DB5 46 DB6 47 DB7 54 NC11 55 ANT_LED 56 LCD_RS 57 RW_WR 58 E_RD 59 LCDPOW 60 NC12 61 NC13 62 N...

Page 85: ...4 VSS 10k R368 NC R531 NC C352 NC L352 1 2 R370 BATTN NC L351 NC R375 120 R367 VSS2 CHG1 K0 1 C374 CHG2 47k R363 NC C351 NC D531 A K 33k R369 K0 1 C362 VSS1 100k R437 1k R436 5 6n F301 Q531 B C E Q361 B E C 560 R362 3 3k R366 NC C353 Q362 B C E NC L412 NC L413 Q364 B C E RECEIVER 1 2 SP_PHONE 1 2 D361 A K MICM 1 MICP 1 NC C364 K1 0 C421 K1 0 C371 K1 0 C372 2 7V 1 VIN 2 VSS 3 ONOFF 5 VOUT 4 NC K0 1...

Page 86: ...706 NC R730 NC C730 NC C736 NC R763 NC R762 NC R761 NC R715 NC C739 NC C764 D771 1 2 3 D781 1 2 3 RF_POWER K1uF C714 NC C792 NC C796 B2 0p C775 B2 0p C777 B1 5p C776 B3 3p C751 D10p C765 B0 7p C763 1 VCC_VCO 2 PAEN 9 TX_p 3 ATST_p 4 ATST_n 5 ANT_n 6 TRSW 7 Rxp 8 Rxn 10 TX_n 11 TRSW_n 12 ANT 13 VCC_FE 14 VDD_IF 15 VCC_IF 16 VDD_DIG_b 17 VCC_DIG 18 RSTN 19 VCC_IO 20 TR_DATA 21 RADIOEN 22 SLOT_CTRL 2...

Page 87: ...87 KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T 13 7 Schematic Diagram Charger Unit J1 2 1 TP3 G TP2 TP1 TP4 R1 10 D1 A K F1 SCHEMATIC DIAGRAM Charger Unit ...

Page 88: ...88 KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T Memo ...

Page 89: ... C160 C167 C171 C168 C169 C472 C473 C475 C508 C513 C509 C170 C179 C172 C176 C687 C166 C101 C102 C300 C115 R662 R142 R160 R166 R178 R674 R673 R176 R175 R591 R595 R596 R172 R421 R422 R372 R371 P101 SA101 SA103 SA102 L101 L102 L300 IC331 D300 D101 Q161 Q141 Q171 C382 C_SCL C_SDA C_GND2 US2BT2 AGND3 AGND2 BT2US2 7 1 Q382 C381 C501 R509 X501 L474 C457 L475 L372 C301 C306 C305 C308 C304 R304 R308 R303 I...

Page 90: ... JO KEY2 KEY3 TE E E E KEY1 KEYB INT1 TXO SDA SCL BCLK DGND UGND AGND MIC1 MIC MIC URX UTX UVCC RA501 R533 C422 R665 R157 R156 R154 Q111 R131 R134 D133 D153 R152 C152 R151 R114 R113 C113 C120 Q362 D113 R182 C181 R181 R122 R121 R111 R112 R133 C132 C112 C182 C183 C184 C122 C121 C111 R155 C660 Q156 C611 C661 C689 C685 C361 C757 KEY_GND C684 C686 C601 R602 C603 C604 C605 R603 R612 C612 R611 R364 R365 ...

Page 91: ...772 R762 R761 R771 D771 R735 R734 R733 R732 R731 R730 C739 C737 C710 C715 C706 C705 C707 C703 C751 C708 C704 C702 C753 C752 C701 C761 C755 C756 C772 C713 C791 C711 C738 C743 C782 D781 R782 C797 L795 C793 C712 C721 C722 L721 C714 C742 C754 C762 C765 C771 C773 C764 C763 C775 C776 C777 C795 C792 L791 C796 C781 C736 C733 C732 C731 C730 C741 L741 L739 IC741 IC701 8 9 16 17 24 25 32 1 1 3 5 4 RF_Vc 3 0 ...

Page 92: ...92 KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T Memo ...

Page 93: ...KX TG9343T KX TG9344T KX TGA931S KX TGA931T 14 3 Circuit Board Base Unit_Operation 14 3 1 Component View A WBX01 WBX02 10 1 6 1 KX TG9341H PbF PQUP11555Z PNLP1014Z KX TG9341 9342 9343 9344 CIRCUIT BOARD Base Unit_Operation Component View ...

Page 94: ...nit_Operation Bottom View A DOWN RPT SKIP UP MSG1 MSG2 LED901 LED902 LED903 LED904 LOCAT INT ANS VCC CONF MUTE FLS SP2 SP HOLD MSG INUSE REDIAL ANS2 MEMO REC CHK STOP ERASE KX TG9341H PbF PQUP11555Z PNLP1014Z 1 2 3 4 5 6 7 0 8 9 KEYS_E KEYS_A KEYS_C KEYS_B MEG_LED KEYIN2 KEYS_D ANS_LED INUSE_LED SP_LED KEYIN5 2APVCC KEYIN3 KEYIN1 KEYIN6 KEYIN4 ...

Page 95: ... D531 L413 L412 C411 C412 C413 D413 D412 C433 C506 C519 R736 R715 R781 R763 R772 R762 R761 R771 D771 R735 R734 R733 R732 R731 R730 C739 C737 C710 C715 C706 C705 C707 C703 C751 C708 C704 C702 C753 C752 C701 C761 C755 C756 C772 C713 C791 C711 C738 C743 C782 D781 R782 C797 L795 C793 C712 C721 C722 L721 C714 C742 C754 C762 C765 C771 C773 C764 C763 C775 C776 C777 C795 C792 L791 C796 C781 C736 C733 C732...

Page 96: ...GA931S KX TGA931T 14 4 2 Bottom View LEFT LCD MENU RIGHT UP TALK OFF BACK NEXT SP DOWN PAUSE 1 2 3 4 5 6 7 FLASH 0 MIC 8 HOLD A 9 LED551 LED552 LED553 LED554 KX TGA93 R PbF PQUP11558Z LED561 LED557 CN3 LED556 LED555 KX TGA931 CIRCUIT BOARD Handset_Main Bottom View ...

Page 97: ... R771 D771 R735 R734 R733 R732 R731 R730 C739 C737 C710 C715 C706 C705 C707 C703 C751 C708 C704 C702 C753 C752 C701 C761 C755 C756 C772 C713 C791 C711 C738 C743 C782 D781 R782 C797 L795 C793 C712 C721 C722 L721 C714 C742 C754 C762 C765 C771 C773 C764 C763 C775 C776 C777 C795 C792 L791 C796 C781 C736 C733 C732 C731 C730 C741 L741 L739 IC741 IC701 8 9 16 17 24 25 32 1 1 3 5 4 RF_Vcc 2 7 V V_RF V_PA ...

Page 98: ...A931T 14 6 Circuit Board Charger Unit 14 6 1 Component View 14 6 2 Bottom View J1 R1 D1 A PQUP11532Z PbF PQLV30055 PQLV30056 CIRCUIT BOARD Charger Unit Component View TP4 TP3 1 2 J1 D1 A F1 PbF PQLV30055 PQLV30056 PQUP11532Z TP4 GND TP3 CIRCUIT BOARD Charger Unit Bottom View ...

Page 99: ... O 38 RF_RST D O Normal WakeUp 39 NC D O 40 NC D O 41 NC D O 42 NC D O 43 NC D O 44 NC D O 45 NC D O 46 GND GND GND 47 VCC VCC VCC 48 NC INT0 D I O 49 FLASH_SCK High Middle Low 50 NC D O 51 KEY_STB_E D O Active Not 52 KEY_STB_D D O Active Not 53 KEY_STB_C D O Active Not 54 KEY_STB_B D O Active Not 55 KEY_STB_A D O 56 NC D O 57 NC D O 58 BELL D I OFF ON 59 RLY D O Off Hook On Hook 60 KEY_IN6 D I No...

Page 100: ... Low 45 DOT_LCD_D5 D O High Low 46 DOT_LCD_D6 D O High Low 47 DOT_LCD_D7 D O High Low 48 GND GND GND 49 VCC VCC VCC 50 DOT_LCD_RESET D O Normal Reset 51 FLASH_SCK D O High Low 52 CI D O Normal 53 NC D O 54 NC D O 55 ANT_LED1 D O On Off 56 DOT_LCD_RS D O Data Instruct 57 DOT_LCD_RW_WR D O Read Write 58 DOT_LCD_E_RD D O Active Not 59 DOT_LCD_POWER_SW D O On Off 60 NC D O Normal 61 NC D O Normal 62 N...

Page 101: ...101 KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T 15 3 Explanation of IC Terminals RF Part 15 3 1 IC701 ...

Page 102: ...102 KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T 15 4 Terminal Guide of the ICs Transistors and Diodes 15 4 1 Base Unit 15 4 2 Handset 15 4 3 Charger Unit ...

Page 103: ...103 KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T 16 Exploded View and Replacement Parts List 16 1 Cabinet and Electrical Parts Base Unit ...

Page 104: ...TGA931T 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 ...

Page 105: ...105 KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T 16 3 Cabinet and Electrical Parts Charger Unit ...

Page 106: ...106 KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T 16 4 Accessories and Packing Materials 16 4 1 KX TG9341T ...

Page 107: ...107 KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T 16 4 2 KX TG9342T ...

Page 108: ...108 KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T 16 4 3 KX TG9343S T ...

Page 109: ...109 KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T 16 4 4 KX TG9344T ...

Page 110: ...2T for KX TG9343T for KX TG9344T PS HB 2 L0AA04A00028 SPEAKER 3 PQHR11082Z GUIDE SPEAKER PS HB 4 PNKE1001Y1 CASE CHARGE TERMINAL for KX TG9343S PS HB 4 PNKE1001Y3 CASE CHARGE TERMINAL for KX TG9341T for KX TG9342T for KX TG9343T for KX TG9344T PS HB 5 PNJT1003Z CHARGE TERMINAL 6 PNBC1004Y1 BUTTON ANSWER ON ABS HB 7 PNBC1005Y1 BUTTON ERASE ABS HB 8 PNBC1006Y1 BUTTON STOP ABS HB 9 PNBC1007Y1 BUTTON ...

Page 111: ...0 ERJ3GEYJ820 82 R161 ERJ3GEYJ104 100k R162 ERJ3GEYJ473 47k R163 ERJ12YJ120 12 R164 ERJ3GEYJ272 2 7k R165 ERJ3GEYJ273 27k R167 ERJ12YJ270 27 R168 ERJ3GEYJ821 820 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 R30...

Page 112: ...AL OSCILLATOR 1 S Safety Ref No Part No Part Name Description Remarks PCB2 PNLP1014Z OPERATIONAL P C BOARD ASS Y RTL DIODES LED901 PQVDBR1111C LED S LED902 PQVDBR1111C LED S Safety Ref No Part No Part Name Description Remarks LED903 LNJ308G8JRA LED S LED904 PQVDBR1111C LED S Safety Ref No Part No Part Name Description Remarks 101 PNGP1002Y2 PANEL LCD for KX TGA931S AS HB 101 PNGP1002Z1 PANEL LCD f...

Page 113: ...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 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...

Page 114: ...2S PS HB 200 1 PNKM1015Y2 CABINET BODY for KX TG9332T for KX TG9333T for KX TG9334T PS HB 200 2 PNJT1010Z CHARGE TERMINAL 200 3 PNKF1012Z2 CABINET COVER for KX TG9332S PS HB 200 3 PNKF1012Z1 CABINET COVER for KX TG9332T for KX TG9333T for KX TG9334T PS HB 200 4 PQHA10023Z RUBBER PARTS FOOT CUSH ION 200 5 PNGT1050Z NAME PLATE for KX TG9332S Safety Ref No Part No Part Name Description Remarks 200 5 ...

Page 115: ...08X25B02 PROTECTION COVER for Handset P203 XZB13X19C03 PROTECTION COVER for Charger Unit P204 PNPK1072Z GIFT BOX for KX TG9343S P204 PNPK1017Z GIFT BOX for KX TG9343T P205 PNPD1006Z CUSHION P206 PQXDDS400 8 MAGNET ELECTRIC TRANS DUCER SECURITY TAG Safety Ref No Part No Part Name Description Remarks A301 PQLV207T AC ADAPTOR for Base Unit A302 PQLV209T AC ADAPTOR for Charger Unit A303 PQJA10075Z COR...

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