Panasonic KX-TGH260B Service Manual Download Page 22

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KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20

4.8.

Circuit Operation (Handset)

4.8.1.

Outline

Handset consists of the following ICs as shown in

Block Diagram (Handset)

(P.20).

• DECT BBIC (

ase

and IC): IC1

- All data signals (forming/analyzing ACK or CMD signal)
- All interfaces (ex: Key, Detector Circuit, Charge, EEPROM, LCD)

• EEPROM: IC3

- Setting data is stored. (e.g. ID, user setting)

4.8.2.

Power Supply Circuit/Reset Circuit

Circuit Operation:

When powering on the Handset, the voltage is as follows;
BATTERY(2.2 V ~ 2.6 V: BATT+)

→

BBIC (IC1) 32 pin

The Reset signal generates IC1 (71 pin) and 1.8 V.

Start monitor

(IC1 50 pin)

VBAT

Reset (*RST)
(IC1_71 pin)

BBIC chip initialize

(STM)

GND

BATTERY
2CELL

BBIC

.0V

Charge Pump Output
For all peripherals

.0V

EEPROM

GND

KEY LED

4.0V

VBAT

.0V

LCD

4.0V

Summary of Contents for KX-TGH260B

Page 1: ...k to Cell Bluetooth Convergence Solution B Black Version for U S A Handset KX TGHA20 Charger Unit Model No Base Unit Handset Charger Unit Expandable KX TGH260 1 TGH260 1 TGHA20 Up to 6 KX TGH262 1 TGH260 2 TGHA20 1 Up to 6 KX TGH263 1 TGH260 3 TGHA20 2 Up to 6 KX TGH264 1 TGH260 4 TGHA20 3 Up to 6 KX TGHA20 1 TGHA20 1 Configuration for each model KX TGHA20 is also an optional accessory which conta...

Page 2: ... Schematic Diagrams Circuit Board Diagrams Exploded Views and Replacement Parts List It is essential that these critical parts should be replaced with manufacturer s specified parts to prevent shock fire or other hazards Do not modify the original design without permission of manufacturer IMPORTANT INFORMATION ABOUT LEAD FREE PbF SOLDERING If lead free solder was used in the manufacture of this pr...

Page 3: ... 10 1 6 Check the RF part 39 10 1 7 Registering a Handset to the Base Unit 43 10 1 8 Deregistering a Handset 43 10 1 9 Check Handset Transmission 44 10 1 10 Check Handset Reception 44 10 1 11 Check Caller ID 44 10 1 12 Check BT Communication 45 11 Disassembly and Assembly Instructions 47 11 1 Disassembly Instructions 47 11 1 1 Base Unit 47 11 1 2 Handset 49 11 1 3 Charger Unit 50 11 2 How to Repla...

Page 4: ...Unit 83 16 2 Cabinet and Electrical Parts Handset 84 16 3 Cabinet and Electrical Parts Charger Unit 85 16 4 Accessories and Packing Materials 86 16 4 1 KX TGH260B 86 16 4 2 KX TGH262B 87 16 4 3 KX TGH263B 88 16 4 4 KX TGH264B 89 16 4 5 KX TGHA20B 90 16 5 Replacement Parts List 91 16 5 1 Base Unit 91 16 5 2 Handset 92 16 5 3 Charger Unit 93 16 5 4 Accessories and Packing Materials 94 16 5 5 Screws ...

Page 5: ... the product you have purchased Please call 1 800 8 BATTERY 1 800 822 8837 for information on how to recycle this battery 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...

Page 6: ...uth 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 director...

Page 7: ...ns W x D x H Mass Weight AC Adaptor PNLV226Z 120 V AC 60 Hz Super Heterodyne PLL synthesizer Quadrature Discriminator 10 368 MHz 41 Hz Frequency Modulation 40 bit 0 1B Tone DTMF Pulse Up to 48 digits Up to 24 digits Phonebook Standby Approx 1 1 W Maximum Approx 4 0 W 0 C 40 C 32 F 104 F 20 80 relative air humidity dry Approx 76 mm x 106 mm x 90 mm Approx 120 g Base Unit Handset Charger AC Adaptor ...

Page 8: ...ation 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 f...

Page 9: ...tes it to digital data RXDATA BBIC IC1 converts RXDATA into a voice signal and outputs it to speaker Transmission Handset A voice signal from microphone is encoded to digital data and converted into a 1 9GHz modulated radio signal by BBIC IC1 The RF signal after which is amplified in BBIC is fed to an antenna Base unit As for a base unit RF RF signal is received in two antennas BBIC IC501 compares...

Page 10: ...IP RING TEL_JACK VRF VPA RF_Block IC501 BBIC DC5 5V GND DC_JACK CHARGE 3 4 2 1 D101 CHARGE DETECT Q701 Q141 Q161 REGULATOR IC302 Power Down DET Power supply at AC failure KEY PAD LED VBAT PDN_DET CHARGE_DET IC601 IC611 IC502 IC721 BT Module Q301 1 8V 3 0V AVD VDD QSPI CIDINp CIDINn P3_6 MICh LSRp RF_VDD VDD_PA ANT1 ANT2 IC722 BT_1 8V BT_1 8V CKM STM EEPROM FLASH Voice prompt FLASH Program ...

Page 11: ...3 KX TGH264 KX TGHA20 KX TGA20 4 3 Tel Interface Circuit TX AMP SIDE TONE RX AMP CONTROL CIRCUIT CALLER ID DETECT BELL DETECT P101 R142 3 4 2 1 C101 Q141 C102 SA101 TIP RING R141 REGULATOR C104 R102 C106 R104 C103 R101 C105 R103 D101 ...

Page 12: ... KX TGA20 4 4 Block Diagram Base Unit_RF Part 10 368 MHz IC501 RF block TXDATA ANT1 ANT1 RF_TXp RF_TXn RF_RXp RF_RXn ANT2 Control Logic RXDATA Mixer Demodulator PLL 3856 3843MHz 3859 3845MHz Modulator KX TGH260 262 263 264 BLOCK DIAGRAM Base Unit_RF Part ...

Page 13: ...eech detector and a Flash Memory which stored the vocabulary Caller ID demodulation The BBIC 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 pa...

Page 14: ...V for peripherals and analog part is insulated from VBAT by Doubler of BBIC Circuit Operation 5 5V 5 5V 3 0V 3 0V 1 8V 3 0V_CP IC501 IC302 IC611 BBIC AC Adaptor 3 0V REGULATOR EEPROM VDD3 VDD1 VDD4 3 0V_CP2 IC601 TAM FLASH VDD5 RF Part LEDs Q301 Bluetooth unit IC721 QSPI FLASH IC502 1 8V IC722 Startmonitor IC501 57pin VDD1 1 8 V VBAT Reset RSTN IC501_77pin BBIC chip initialize CKM STM ...

Page 15: ... TGH260 KX TGH262 KX TGH263 KX TGH264 KX TGHA20 KX TGA20 4 5 6 1 Charge Circuit The voltage from the AC adaptor is supplied to the charge circuits R372 D362 R371 CHARGE R373 C351 F301 DCP CHARGE 5 5V DCM K A ...

Page 16: ...s open Q141 is connected as to cut the DC loop current and to cut the voice signal The unit is consequently in an on hook condition Pulse Dial Circuit Pin 19 of BBIC 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 BBIC OFF...

Page 17: ...connection if the voltage is 0 54 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 17 of IC501 the presence absence of a parallel connection is determined by detecting the voltage changes If the Auto disconnect function is ON and statuses are Hold receiving ICM OGM transmitti...

Page 18: ...hich 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 ...

Page 19: ...a pass the following route Telephone Line P101 C105 C104 R103 R102 IC501 23 21 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 CAS CAS CPE Alerting Signal Dual Tone of 2130 Hz 2750 Hz 15 dBm 900 ohm load 80 5 ms MARK DATA 0 500 ms...

Page 20: ...IC RST CHG_CTL BATTERY_ON CHG_DET WP CLK DATA STB_A F KIN_1 4 CHARGE MIC Receiver SP PHONE SP LCD KEYS RF part ANT1 X1 10 368 MHz EEPROM 3V BATTERY LED LCD RSTN VBAT VBAT 4V RXn RXp TXp TXn KX TGHA20 BLOCK DIAGRAM Handset KEY_LED Q6 LED KEY 4V CHARGE CONTROL POWER SUPPLY CONTROL IC4 FLASH MEMORY QSPI_100 4 QSPI_CS LSRn STM NR_LED QSPI_SCK1 ...

Page 21: ...21 KX TGH260 KX TGH262 KX TGH263 KX TGH264 KX TGHA20 KX TGA20 4 7 Block Diagram Handset_RF Part KX TGHA20 BLOCK DIAGRAM Handset_RF Part RXp RXn ANT TXp TXn ...

Page 22: ...Charge EEPROM LCD EEPROM IC3 Setting data is stored e g ID user setting 4 8 2 Power Supply Circuit Reset Circuit Circuit Operation When powering on the Handset the voltage is as follows BATTERY 2 2 V 2 6 V BATT F1 BBIC IC1 32 pin The Reset signal generates IC1 71 pin and 1 8 V Start monitor IC1 50 pin 1 8 V VBAT Reset RST IC1_71 pin BBIC chip initialize STM GND BATTERY 2CELL BBIC 3 0V 3 0V Charge ...

Page 23: ...dset Refer to Fig 101 in Power Supply Circuit Reset Circuit P 14 4 8 4 Battery Low Power Down Detector Circuit Operation Battery Low and Power Down are detected by BBIC which check the voltage from battery The detected voltage is as follows Battery Low Battery voltage V Batt 2 25 V 50 mV The BBIC detects this level and starts flashing Power Down Battery voltage V Batt 2 0 V 50 mV The BBIC detects ...

Page 24: ...wer failure supplying power to VBAT of base unit from battery of handset through Q10 CHG terminal and Q351 4 10 Circuit Operation Charger Unit Charge control is executed at handset side so that the operation when using charger is also controlled by handset Refer to Circuit Operation Handset P 22 The route for this is as follows DC pin of J1 CHARGE pad Handset CHARGE pad DC pin of J1 Handset BATT B...

Page 25: ...o the Operating Instructions Instruction book on TSN Server 6 Installation Instructions Refer to the Operating Instructions Note You can download and refer to the Operating Instructions Instruction book on TSN Server 7 Operating Instructions Refer to the Operating Instructions Note You can download and refer to the Operating Instructions Instruction book on TSN Server ...

Page 26: ...e EEP using or then press SELECT or V Default Data Select Set tel line using or then press SELECT or V Service Mode Read EEP Write EEP Set Addr BACK SELECT CLEAR OK V OFF FLASH CALL WAIT Dial keypad This pictured model is KX TGH260 Important Make sure the address on LCD is correct when entering new data Otherwise you may ruin the unit Make sure the link between Base and Handset before that Then in...

Page 27: ...to confirm the contents Careless rewriting may cause serious damage to the computer system ID 00 02 00 06 Given value Desired Number hex Input Keys Desired Number hex Input Keys 0 0 A Flash 0 1 1 B Flash 1 C Flash 2 D Flash 3 E Flash 4 9 9 F Flash 5 7 Press OK a long confirmation beep will be heard 8 Press to return to standby mode After that turn the base unit power off and then power on Note Set...

Page 28: ...tters printed on dial keys 5 Enter ە ە ە ە Address 1 7 Press OK a long confirmation beep will be heard 8 Press to return to standby mode After that remove and reinsert the batteries Press the Power button for about 1 second if the power is not turned on 6 Enter 㸨㸨 New Data 1 4 Select Write EEP using or then press SELECT or V OFF Default Data New Data Service Mode Read EEP Write EEP Set Addr _ _ _...

Page 29: ...a READ ONLY mode to confirm the contents Careless rewriting may cause serious damage to the handset Items Address Default Data New Data Possible Adjusted Value MAX hex Possible Adjusted Value MIN hex Remarks Frequency 00 07 00 08 00 01 2 ID 00 02 00 06 Given value Desired Number hex Input Keys Desired Number hex Input Keys 0 0 A Flash 0 1 1 B Flash 1 C Flash 2 D Flash 3 E Flash 4 9 9 F Flash 5 ...

Page 30: ...GHA20 KX TGA20 9 Service Mode 9 1 How to Clear User Setting Handset Only Handset Press simultaneously until a beep sound is heard Then single handset is initialized The contents of user setting are reset to factory default Usage time is not cleared ...

Page 31: ...symptom can not reappear with TEL simulator in the service center In this case try to change the Auto disconnect activation time and Vox level How to change the Auto Disconnect activation time and VOX level P 34 item A and B Power ON Base Unit OK FLOW CHART Check Power OK Playback Pre Message Check Playback Record OK Check Record Range Check the RF part Handset Voice Transmission Check Handset Tra...

Page 32: ...e AC Adaptor inserted into AC outlet 1 Is output voltage of AC adaptor 5 5 V YES Check AC Adaptor Check VDD1 1 8V Test point VDD1 2 OK Check Power Supply Circuit NO NO NO NO RSTN Reset High 2 YES Check Reset Circuit Check Xtal CLK 10 368MHz 2 YES Check X501 Check BBIC Check Power Supply Circuit Reset Circuit Check X1 C52 C53 Is the voltage of TP VBAT 2 3 V more Check the battery and around BATT an...

Page 33: ... Detect Circuit Auto Disconnect Circuit P 17 Note Flash Memory is IC601 BBIC is IC501 Check Bell signal OK Check Telephone Line Interface Bell Does the unit catch line YES Check Telephone Line Interface OFF HOOK Check Line In Pin 25 of BBIC Check ICM Recording in Signal Route NO OK Check Auto Disconnect Circuit OK Check Parallel Connection Detection Circuit OK Check BBIC and Flash Memory NO NO ...

Page 34: ...s below 1 Press MENU key at standby Mode and key Note The set must power on and be linked 2 Press 9 0 0 0 3 Press 7 3 1 4 Then enter the below last digit 5 Back to standby mode automatically after step 4 You can hear beep sound which is a confirmation tone Service ready 7 3 1 Service ready LCD H S last digit 0 Auto disconnect CPC enable 㨇default㨉 1 1 Auto disconnect CPC disable 2 1 2 Auto disconne...

Page 35: ...the sensitivity of VOX level Therefore the recording of TAM is not turned off during detection 1 2 are same as A 3 Press 5 1 1 4 Then enter the below last digit 5 Back to standby mode automatically after step 4 You can hear beep sound which is a confirmation tone Service ready 5 1 1 last digit 0 default setting normal 1 6dB up CLEAR ...

Page 36: ...Supply Circuit Check output of BBIC Pin 41 43 OK Check BBIC and Flash Memory Check Speaker and its surroundings NO NO Check Charge Circuit of Base Unit Check Handset Plug in the AC Power source Charge Handset on Base Unit Is the voltage of two charge contacts about 3 V or more OK NO Check Charge Contacts at Base Unit from mechanical point of view YES Is BBIC IC1 34 high at charge state Check Charg...

Page 37: ... tal P 52 P 58 for Base Unit 1 How to adjust the frequency of X501 Check around Power Supply Circuit Does Base Unit connect to the properly working Handset Check around X501 and RF module and adjust clock frequency 1 NO NO NO NO YES YES Is the voltage of VDD3 about 3 0V Check the RF part Does the RF clock CLK oscillate at 10 368 MHz in Base Unit Test Mode YES Is the voltage of VDD1 about 1 8V YES ...

Page 38: ...t 1 How to adjust the frequency of X1 Check around Power Supply Circuit Reset Circuit Does Handset link with Base Unit Properly working unit Check around X1 and RF module and adjust clock frequency 1 NO NO NO NO Is the voltage of TP VBAT about 2 2 2 8 V Is the voltage of 1 8V about 1 8V YES YES YES Does the RF clock CLK oscillate 10 368 MHz in Handset Test Mode Handset is OK Check Base Unit YES Ch...

Page 39: ...egular BU 2 2 a Re register regular HS Normal mode to base unit to be checked If this operation fails in some ways the base unit is defective b Re register handset to be checked to regular BU Normal mode If this operation fails in some ways the handset is defective Base unit is defective Handset is defective START Registration of Regular HS to base unit Registration of handset to Regular BU other ...

Page 40: ... part P 41 Please refer to the each item Note 1 Refer to Check Link P 37 Start Link confirmation Normal 1 Control signal confirmation X tal Frequency confirmation TX confirmation Range confirmation Normal TEST RANGE Check Check BBIC interface parts RF Block BBIC on BU HS P C B Adjust X tal Frequency 1 Check TX Block GOOD 5 2 3 4 OK OK OK NG NG NG NG NG OK OK ...

Page 41: ...eck X tal Frequency 10 368 MHz 41Hz Check X tal Frequency 10 368MHz 100Hz 3 TX confirmation HS Mode HS_Burst Mode 1 BS Mode BS_Burst Mode 1 1 Remove wire antenna 2 and connect spectrum analyzer to TP 2 2 Confirm TX power whether spec is satisfied Power 13 5dBm 1 Connect spectrum analyzer to TP 3 2 Confirm TX power whether satisfied spec Power 16 0dBm 4 Range Confirmation Normal HS BU Mode Normal M...

Page 42: ...ART1 3 At distance of about 20m 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 setting Checked unit High TX power 1 Regular unit Low TX power 1 1 Register Regular HS to BU to be checked 2 Set TX Power of the BU and the Regular HS according to CHART1 3 At distance of about 20m between HS and BU Link OK RX Sen...

Page 43: ...R again to stop then repeat this step The next step must be completed within 90 seconds 3 Handset Press OK then wait until a long beep sounds Note While registering Base in registering is displayed on all registered handsets When you purchase an additional handset refer to the additional handset s installation manual for registration L OFF A handset can cancel its own registration to the base unit...

Page 44: ...ting 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 Check MIC of handset Check handset Tx in Signal Route Check speaker of handset Check handset Rx in Signal Route YES Did bell ring Message indicator blinks Check Calling Line Identifi...

Page 45: ...e Transmission of the BT_Headset Check Voice Reception of the BT_Headset Check ph book transfer from cell Check the circuit of around PCM communication of main board and BT module Refer to Troubleshooting Guide in the Operationg Instructions Check the circuit of around RF parts of BT Module YES YES OK OK NO NG NG NG NO Unplug plug in the AC power source again Check the Check_PIN PIO01 of IC721 1 C...

Page 46: ...d UART communication of main board and BT module AC power on PIO01 䍦 1 5s 䍦 1 95s 䍦0 05s 䍦㻠㻚㻜s Case1 OK Case2 NG1 fail to reset BT_IC AC power on PIO01 䍦 1 5s If BT_IC does not work 1st and 2nd signals does not appear Case3 NG2 fail to receive of UART signals AC power on PIO01 䍦 1 5s If BT_IC fails to receive of UART 2nd signal does not turn to HIGH Case4 NG3 fail to transmit of UART signals AC po...

Page 47: ... Disassembly and Assembly Instructions 11 1 Disassembly Instructions 11 1 1 Base Unit ճ Remove the screw to remove the Jack Holder screws Jack holder Cabinet cover Solders Main P C board ձ Remove the 2 screws to remove the cabinet cover ղ Remove the solders 2 screws ...

Page 48: ...TGH262 KX TGH263 KX TGH264 KX TGHA20 KX TGA20 1 screws յ Remove the screw to remove the operational P C B board Operational P C B board Remove the pararell wire to remove the main P C board Pararell wire Main P C board ...

Page 49: ... the cabinet cover then pull it along the gap to open the cabinet Likewise open the other side of the cabinet Remove the cabinet cover by pushing it upward Remove the solders Remove the solders to remove the 2 charge terminals Remove the screw to remove the main P C board Cabinet body Cabinet cover Cabinet cover 4 screws Solders Screw Main P C board 2 charge terminals ...

Page 50: ...50 KX TGH260 KX TGH262 KX TGH263 KX TGH264 KX TGHA20 KX TGA20 11 1 3 Charger Unit 2 charge terminals ձ Unhook the click of one side ղ Then unhook the other one ...

Page 51: ...ffer from the actual product Bend FFC and fix to the positioning points 2 points RI B LCD LCD connector 2 points LCD Main P C B Insert LCD connector to MAIN P C B FRONT SIDE OF LCD BACK SIDE OF LCD DOUBLE SIDE TAPE Peel off DOUBLE SIDE TAPE at the back side LCD 2 points as a figure shown LCD r i b B A Fit the positioning point 2 points when attaching LCD UNIT ...

Page 52: ...ely adjust like a mass production 12 2 The Setting Method of JIG Preparation Serial JIG cable PQZZ1CD300E PC which runs in DOS mode Batch file CD ROM for setting PNZZTGH260M Note If you have the JIG Cable for TCD500 series PQZZ1CD505E change the following values of resistance Then you can use it as a JIG Cable for both TCD300 and TCD500 series It is an upper compatible JIG Cable 12 2 1 Connections...

Page 53: ...ery to BATT and BATT Connect the JIG cable GND black to GND Connect the JIG cable UTX yellow to UTX and URX red to URX Note COM port names may vary depending on what your PC calls it Handset P C board 2 GND black 3 To Serial Port com port 1 JIG Cable PC URX red 3 UTX yellow GND UTX URX DC Power or Battery 1 BATT BATT ...

Page 54: ...y error messages appear change the port number or 䇭check the cable connection 䊶If any value appear go to next step 7 Type DOSKEY then press the Enter key Example C Documents and Settings D D CD PNZZTG D PNZZTG SET_COM X D PNZZTG READID 00 52 4F A8 A8 D PNZZTG DOSKEY D PNZZTG Example error happens C Documents and Settings D D CD PNZZTG D PNZZTG SET_COM X D PNZZTG READID ޓ CreateFile error ERROR 10 ...

Page 55: ...Type getchk How to use of getchk in Handset 1 rdeeprom Read EEPROM Type RdEeprom 03 7D 04 and the data from address 03 7D to 03 80 is read out This command gets 4 byte WW XX YY ZZ Please NEVER forget these 4 byte data 2 sendchar epw Write EEPROM Type sendchar epw 03 7D 04 FF FF FF FF 3 sendchar RST Reset baseset Type sendchar RST 4 getchk Read checksum Type getchk 5 sendchar epw Write EEPROM Type ...

Page 56: ...Analyzer R601 BT_MDO RSTN DCM DCP C601 RA501 C611 CHARGE CHARGE F301 SPN SPP BT_1 8V ANT_BT S GND ANT1 S GND BT_GND BT_SIO URX Q701 C472 Q702 C473 ANT1_TP UTX STM CKM P15 IC601 Q144 IC611 JTAG Q731 Q732 R101 R102 R103 R104 R109 R115 R116 R117 BT_SOT R118 R119 R502 R505 R120 R701 D472 R702 D473 R321 C103 GAP C104 C105 C106 R143 VDD1 C109 R146 R147 VDD3 VDD4 R148 VDD5 BT_TCK C115 C116 C501 R731 R732...

Page 57: ... GND VBAT DC VOLT METER DC POWER SUPPLY 2 6 V 2 34 V 2 Spectrum Analyzer 1 ANT C22 BATT BATT C29 C30 C32 C36 C40 C41 C43 C44 C45 C46 C47 CHG CHG C52 C53 C55 C56 C59 Q10 Q11 Q12 C69 C70 C71 RA2 C72 C73 RA3 C801 RA5 C78 C79 LCD C91 C92 C98 C99 C1 C2 C3 C5 C6 URX STM C859 RECEIVER C860 C861 C862 C866 UTX SP PHONE_SPEAKER MIC MIC JTAG D13 D14 D21 D22 VBAT IC1 IC3 IC4 CP3V R10 R11 R12 R13 R15 CP4V R18 ...

Page 58: ... default batch file etc 1 Change the address 0001 of EEPROM to AA to download the data 2 Default batch file Execute the command default bat 3 Country version batch file Execute the command TGH260_US_US_RevXXX_YYY bat 1 4 System Clock adjustment X tal X1 System clock Clock adjustment data is in EEPROM adjust the data again after replacing it 1 Apply 5 5V between DCP ad DCM with DC power 2 Input Com...

Page 59: ... is stored in memory country version batch file default batch file etc 1 Default batch file Execute the command default bat 2 Default batch file remaining Execute the command TGHA20_US_DEF_RevXXX_YYY bat 2 3 Country version batch file Execute the command TGHA20_US_US_RevXXX_YYY bat 2 4 System Clock adjustment 5 2 35 V setting and battery low detection X tal X1 System clock 1 Apply 2 6V between BAT...

Page 60: ...260 KX TGH262 KX TGH263 KX TGH264 KX TGHA20 KX TGA20 12 6 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 61: ...6 2408 39 2441 72 2474 7 2409 40 2442 73 2475 8 2410 41 2443 74 2476 9 2411 42 2444 75 2477 10 2412 43 2445 76 2478 11 2413 44 2446 77 2479 12 2414 45 2447 78 2480 13 2415 46 2448 14 2416 47 2449 15 2417 48 2450 16 2418 49 2451 17 2419 50 2452 18 2420 51 2453 19 2421 52 2454 20 2422 53 2455 21 2423 54 2456 22 2424 55 2457 23 2425 56 2458 24 2426 57 2459 25 2427 58 2460 26 2428 59 2461 27 2429 60 2...

Page 62: ...ight 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 13 1 3 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 tw...

Page 63: ...e 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 Solder Soldering Iron P C Board Land...

Page 64: ...heat 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 5 13 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 f...

Page 65: ... 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 13 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 66: ...1TGH260H PNWI2TGH260H PNWI3TGH260H C1CB00003663 DSC7003S0L Cathode Anode B0ECKM000008 B0EDER000009 Cathode Anode B0DDCD000001 3 2 1 4 C0DBEYY00102 Ѝ Ѝ 2SA1776P DY2J25000L Anode Cathode B3AAB0000347 Cathode Anode 49 25 48 73 96 72 24 1 1 Reverse View 1 4 8 5 PNWITGHA20R Anode Cathode B0BC4R3A0006 C3FBMY000312 C B E B1ADCF000040 B1ADGE000012 2SC6054JSL B1ADNB000003 UNR9216J0L C1CB00004121 1 88 67 23...

Page 67: ...y be modified at any time with the development of new technology 14 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 Important Safety Notice Components identified by mark have special characteristics important for safety When...

Page 68: ...01 560 1 2 3 4 5 6 7 8 C508 1u C506 2 2u C512 1u IC611 128K EEPROM 1 A0 2 A1 3 A2 4 GND SPN RSTN VDD4 VDD5 SPP R502 3 3k RF_RXn GND OJ2 RF_RXp GND ANT1_TP 1 2 C859 10p OJ1 OJ5 RF_TXp OJ4 RF_TXn GND GND 3 0V OJ3 GND ANT1 S GND BT_TMS BT_TCK BT_1 8V D473 NC D472 NC L781 4 7n C477 2200p C478 2200p RA501 220 1 2 3 4 3 0_CP2 IC722 1 CE 2 GND 3 VOUT 4 VDD 3 0_CP2 C509 1u RA655 100 1 2 3 4 5 6 7 8 1 8V_B...

Page 69: ...8 LSRn 29 ONE_CELL 30 AVD 31 LDO_CTRL 32 ADC0 P3_3 ADC1 INT0 P1_0 89 VDD3 90 LDORF_CTRL 91 RFP0n 92 RF_SUPPLY2 93 RF_SUPPLY_PA 94 RF_TXn 95 RF_TXp 96 RFP2 133 VSS GND IC501 109 DC_CTRL 108 DC_I 111 DC_CTRLN 107 DC_SENSE 100 P4_2 SPI2_DO 101 P4_3 SPI_DI 129 P5_6 130 P5_7 125 QSPI_CS 122 VDDIO 121 QSPI_IO0 126 QSPI_IO1 123 QSPI_IO2 119 QSPI_IO3 120 QSPI_SCK 115 ULP_MAIN_CTRL 97 VSS GNDplane1 98 VSS ...

Page 70: ... INITX J5 P48 K6 P49 J6 P4A L7 P4B K7 P4C J7 P4D K8 P4E K9 MD1 PE0 L8 MD0 L9 X0 PE2 L10 X1 PE3 K10 VSS11 J9 VSS12 H10 P13 H9 P14 G10 P15 G9 P16 F10 P17 H11 AVCC F11 AVRH G11 AVSS F9 P18 E11 P19 E10 P1A E9 P1B B10 VSS13 C9 VSS14 D11 VSS15 D10 P23 SCK0_0 D9 P22 SOT0_0 B9 P01 TCK SWCLK B11 P02 TDI A9 P03 TMS SWDIO B8 P04 TDO SWO A8 P07 A7 VSS17 C8 P0A SIN4_0 C7 P0B SOT4_0 B7 P0C C3 VSS18 B6 P0D RTS4_...

Page 71: ...NC P21 P22 PCM_IN PCM_CLK PCM_IN PCM_CLK P55 P54 VDD VDD VDD VDD P51 P50 P50 P51 X1 26M 1 2 4 3 GND C16 0 1u R2 100k GND GND C18 4 7u GND GND C19 2 2u RESETC C13 5p C14 15p DL1 3 OUT 2 GND 1 IN IC1 E5 PIO4 C6 PIO9 A5 VREG_EN_RST B4 VREG_IN_HV A4 VREG_OUT_HV C3 VDD_PADS C4 VSS_DIG A1 VSS_AUX C1 VSS_RADIO A6 UART_TX B5 UART_RX C5 UART_CTS B6 UART_RTS D2 PCM_SYNC SPI_CS D3 PCM_CLK SPI_CLK E6 SPI_ PCM...

Page 72: ...D KEYS_E KEYS_D KEYIN2 KEYIN3 KEYS_C KEYIN1 LED_VDD LED904 GREEN A K LED902 RED A K LED905 GREEN A K LED906 GREEN A K LED901 RED A K SW904 ERASE 2 4 1 3 SW901 UP 2 4 1 3 SW908 ANS 2 4 1 3 SW906 RPT 2 4 1 3 SW907 PLAY STOP 2 4 1 3 SW905 SKIP 2 4 1 3 SW902 DOWN 2 4 1 3 SW903 LOCATOR 2 4 1 3 ANS_LED KEYS_E KEYS_C KEYIN1 KEYIN2 KEYIN3 KEYS_D MSG_LED LED_VDD CELL1_LED CELL2_LED HS_LED 1 9 12 ...

Page 73: ...73 KX TGH260 KX TGH262 KX TGH263 KX TGH264 KX TGHA20 KX TGA20 Memo ...

Page 74: ...ED3 LED12 LED6 LED5 LCD 4 GND LCD 10 SCL LCD 5 VDDI LCD 8 CSX LCD 11 VPNL LCD 9 RESX LCD 6 D CX LCD 1 LEDK2 LCD 2 LEDK1 LCD 7 SDA LCD 3 LEDA C2 NC C3 NC GND GND IC1 3 RFP1 4 RFP0 5 REF_RES 6 AVS_XTAL 7 XTAL2 8 XTAL1 9 AVD_XTAL 10 RF_SUPPLY1 11 PARADET P3_4 50 P1_5 INT5 RDI VDDE 51 QSPI_SCK 52 P1_4 INT4 TDOD 53 P1_3 INT3 SIO 54 QSPI_IO0 55 P1_2 INT2 SK 76 P2_2 PCM_CLK CLK100 77 WLED_CUR_0 78 WLED_C...

Page 75: ... P3_3 26 ADC1 INT0 P1_0 27 SOCp 28 SOCn 29 DC_SENSE 30 DC_I 31 DC_CTRL 32 VBAT 33 CHARGE_CTRL 47 VDD1 48 QSPI_IO3 49 P2_7 BXTAL 23 AVD 24 LDO_CTRL 34 P1_7 CHARGE 35 DP1 PAOUTp P3_1 36 VDD_PA 45 CP_VOUT2 46 PON P1_6 37 DP0 PAOUTn P3_0 18 CIDOUT MICn 19 MICH 20 VREFM 21 LSRp 22 LSRn 38 CP_VBAT1 39 CP_C1X 40 CP_C2X 41 CP_C1Y 42 CP_VBAT2 43 CP_C2Y 44 CP_VOUT1 R24 820 R25 820 R77 1 R76 1 C99 NC C98 NC ...

Page 76: ...76 KX TGH260 KX TGH262 KX TGH263 KX TGH264 KX TGHA20 KX TGA20 Memo ...

Page 77: ... C657 C658 C659 C851 C660 R891 C661 C662 C859 C477 C860 C478 C862 L E D _ V D D Q141 Q142 H S _ L E D K E Y I N 1 K E Y I N 2 K E Y I N 3 Q351 Q352 Q353 Q354 Q161 C E L L 2 _ L E D G R110 R111 R112 R501 R311 L1 L2 R125 D474 C101 C102 R141 R142 R144 R721 R145 C110 C111 C113 R151 R152 C502 C504 L781 C311 C508 C509 R351 R352 R354 R355 R162 R356 R163 R164 X501 R165 R166 C512 R167 C514 R168 R169 C515 C...

Page 78: ...R103 R104 R109 R115 R116 R117 BT_SOT R118 R119 R502 R505 R120 R701 D472 R702 D473 R321 C103 GAP C104 C105 C106 R143 VDD1 C109 R146 R147 VDD3 VDD4 R148 VDD5 BT_TCK C115 C116 C501 R731 R732 R733 C503 R734 ANT_TP BT BT_URX R735 C505 L1R C506 L1T C120 C121 R160 BT_TDO RA601 C513 C321 C517 C518 C519 R170 5 5V C520 RA611 BT_UTX ANT1 Short R371 R372 R373 C342 ANT_BT_short C351 C161 C162 C164 C166 IC302 D...

Page 79: ...omponent View C E L L 1 _ L E D M S G _ L E D C E L L 2 _ L E D K E Y S _ C K E Y S _ D K E Y S _ E L E D 9 0 1 L E D 9 0 2 L E D _ V D D 5 0 9 D E L 4 0 9 D E L L E D 9 0 6 H S _ L E D K E Y I N 1 K E Y I N 2 K E Y I N 3 S W 9 0 1 S W 9 0 2 S W 9 0 3 S W 9 0 4 S W 9 0 5 S W 9 0 6 S W 9 0 7 S W 9 0 8 A N S _ L E D P N L B 2 2 8 8 Z A A P N L B 2 2 8 8 Z A A U K X T G H 2 x x ...

Page 80: ...80 KX TGH260 KX TGH262 KX TGH263 KX TGH264 KX TGHA20 KX TGA20 Memo ...

Page 81: ...3 C801 RA5 C78 C79 LCD C91 C92 C98 C99 C1 C2 C3 C5 C6 URX STM C859 RECEIVER C860 C861 C862 C866 UTX SP PHONE_SPEAKER MIC MIC JTAG D13 D14 D21 D22 VBAT IC1 IC3 IC4 CP3V R10 R11 R12 R13 R15 CP4V R18 R19 R20 R23 R24 Q1 R25 Q2 Q3 Q4 Q6 Q9 R1 R2 R6 R7 R8 R9 R45 R60 R61 POWER R76 CKM C190 C191 RCV RCV X1 1 8V C11 C12 C13 C15 GND C19 C85 C94 RA4 ORANGE C93 R77 ORANGE GREEN BLUE PNLB2283Z PbF A UTX URX VB...

Page 82: ...GH263 KX TGH264 KX TGHA20 KX TGA20 15 3 2 Bottom View KX TGHA20 CIRCUIT BOARD Handset_Main Bottom View 0 1 2 3 4 AST 5 6 7 8 9 LED1 LED2 LED3 LED4 LED5 LED12 LED6 LEFT DOWN NR RIGHT SP OFF SHARP UP SOFT_A SOFT_C ECO R TALK MIC A ...

Page 83: ...260 KX TGH262 KX TGH263 KX TGH264 KX TGHA20 KX TGA20 16 Exploded View and Replacement Parts List 16 1 Cabinet and Electrical Parts Base Unit Ref No Figure A 2 6 x 8mm 1 3 4 5 6 7 8 9 10 11 20 19 18 21 22 A A A A ...

Page 84: ...lable through sales route of Panasonic 3 Attach the SPACER No 122 to the exact location described above 4 This SPACER is cut from the excess parts of SPACER No 105 Ref No 2 8 mm B Figure CUSHION RUBBER Put it in the center Spacer No 118 Battery cover Put it in the center Stick it between ribs 101 102 103 104 105 PCB100 116 119 120 121 114 113 112 111 107 106 MIC100 115 B 109 110 108 E101 E102 E103...

Page 85: ...85 KX TGH260 KX TGH262 KX TGH263 KX TGH264 KX TGHA20 KX TGA20 16 3 Cabinet and Electrical Parts Charger Unit 200 200 1 200 2 200 3 200 4 200 5 201 ...

Page 86: ...86 KX TGH260 KX TGH262 KX TGH263 KX TGH264 KX TGHA20 KX TGA20 16 4 Accessories and Packing Materials 16 4 1 KX TGH260B A2 A1 A3 A4 A5 A6 P1 P2 ...

Page 87: ...87 KX TGH260 KX TGH262 KX TGH263 KX TGH264 KX TGHA20 KX TGA20 16 4 2 KX TGH262B Note 1 These pads are pieces of Ref No P102 PAD A101 A102 P101 A103 A104 A105 A106 P102 1 1 ...

Page 88: ... KX TGH262 KX TGH263 KX TGH264 KX TGHA20 KX TGA20 16 4 3 KX TGH263B Note 1 These pads are pieces of Ref No P202 PAD 2 These pads are pieces of Ref No P203 PAD P202 1 1 1 1 2 P203 A201 A202 A203 A204 A205 A206 P201 ...

Page 89: ...89 KX TGH260 KX TGH262 KX TGH263 KX TGH264 KX TGHA20 KX TGA20 16 4 4 KX TGH264B Note 1 These pads are pieces of Ref No P302 PAD A301 A302 A303 A304 A305 A306 P301 P302 1 1 ...

Page 90: ...90 KX TGH260 KX TGH262 KX TGH263 KX TGH264 KX TGHA20 KX TGA20 16 4 5 KX TGHA20B Note 1 These pads are pieces of Ref No P502 PAD A501 P501 P502 1 P503 ...

Page 91: ...R0 Metal Film PQ4R Chip ERS Fusible Resistor ERF Cement Resistor Type ECFD Semi Conductor ECQS Styrol ECUV PQCUV ECUE Chip ECQMS Mica ECCD ECKD ECBT F1K ECUV Ceramic ECQE ECQV ECQG Polyester ECEA ECST EEE Electlytic ECQP Polypropylene Wattage Type Voltage Of Capacitor 10 16 1 8W 14 25 1 4W 12 1 2W 1 1W 2 2W 3 3W Voltage ECQ Type ECQG ECQV Type 05 50V 1 100V 2 200V ECSZ Type 0J 6 3V 1A 10V 1C 16V 1...

Page 92: ...CUE1H222KBQ 0 0022 C501 ECUE1A104KBQ 0 1 C502 ECUE0J105KBQ 1 C503 ECUE1H100DCQ 10p C504 ECUE1A104KBQ 0 1 C505 ECUE1A104KBQ 0 1 C506 ECUV0J225KBV 2 2 C508 ECUE0J105KBQ 1 C509 ECUE0J105KBQ 1 C512 ECUE0J105KBQ 1 Safety Ref No Part No Part Name Description Remarks C513 ECUE1A104KBQ 0 1 C514 ECUE1H100DCQ 10p C515 ECUE1A104KBQ 0 1 C516 ECUE1A104KBQ 0 1 C518 ECUE1A104KBQ 0 1 C519 ECUE1A104KBQ 0 1 C520 EC...

Page 93: ...J2GEJ681 680 S R12 ERJ2GEJ224 220k S R13 ERJ2GEJ102 1k S R15 ERJ2GEJ152 1 5k S R18 ERJ2GEJ303 30k S R19 ERJ2GEJ103 10k S R20 D0GA563ZA006 56k R23 ERJ2GEJ102 1k S R24 ERJ2GEJ821 820 S R25 ERJ2GEJ821 820 S R45 D0GBR10JA113 0 1 R61 ERJ2GEJ102 1k S Safety Ref No Part No Part Name Description Remarks R76 ERJ2GEJ1R0 1 S R77 ERJ2GEJ1R0 1 S CAPACITORS C1 EEE0JA221WP 220 C5 ECUV1C104KBV 0 1 C6 ECUV1C104KBV...

Page 94: ...APPEAL A106 PNQW3426Z LEAFLET MINI LOCATOR APPEAL P101 PNPK3765001Z GIFT BOX P102 PNPD1822Z CUSHION Safety Ref No Part No Part Name Description Remarks A201 PNLV226Z AC ADAPTOR A202 PFJA02B002Y CORD TELEPHONE A203 PNQX6421Z INSTRUCTION BOOK 1 A204 PNQW3912Z LEAFLET QUICK GUIDE A205 PNQW2611Z LEAFLET REPEATER APPEAL A206 PNQW3426Z LEAFLET MINI LOCATOR APPEAL P201 PNPK3766001Z GIFT BOX P202 PNPD1823...

Page 95: ...law ORDER NO KM41406501SE Telephone Equipment Model No KX TGH260B KX TGH262B KX TGH263B KX TGH264B KX TGHA20B Digital Cordless Answering System Link to Cell Bluetooth Convergence Solution B Black Version Supplement Please use this manual with the original service manual mentioned on the next page ...

Page 96: ...t KX TGH260B KX TGH262B KX TGH263B KX TGH264B KX TGHA20B U S A KM41402790CE A to B Reason for Change The following items 1 8 indicate the reason for change See the Notes column for each part in ORIGINAL AND NEW PARTS COMPARISON LISTS 1 Improve performance Note To enhance the quality and chage software There is no parts number change by this reason 2 Change of material or dimension 3 To meet approv...

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