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Panasonic KX-TGH262B Service Manual

Manual is about: Digital Cordless Answering System Link-to-Cell Bluetooth Convergence Solution

Summary of KX-TGH262B

  • Page 1

    © panasonic system networks co., ltd. 2014 unauthorized copying and distribution is a violation of law. Order no. Km41402790ce f13 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: bla...

  • Page 2

    2 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 warning this service information is designed for experienced repair technicians only and is not designed for use by the general public. It does not contain warnings or cautions to advise non-technical individuals of potential dangers in at...

  • Page 3: Table of Contents

    3 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 table of contents page page 1 safety precautions----------------------------------------------- 5 1.1. For service technicians --------------------------------- 5 2 warning -------------------------------------------------------------- 5 2...

  • Page 4

    4 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 15.3. Circuit board (handset_main) ------------------------ 81 15.3.1. Component view ------------------------------------ 81 15.3.2. Bottom view ------------------------------------------ 82 16 exploded view and replacement parts list ---...

  • Page 5: 1 Safety Precautions

    5 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 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 prevent fires, injury or electric shock, which can be caused by improper ...

  • Page 6

    6 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 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+z...

  • Page 7: 3 Specifications

    7 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 3 specifications note: design and specifications are subject to change without notice. Note for service: • operation range: up to 300 m outdoors, up to 50 m indoors, depending on the condition. • analog telephone connection: telephone line...

  • Page 8: 4 Technical Descriptions

    8 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 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.60). 4.1.1. Tdd frame forma...

  • Page 9

    9 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 4.1.3. Signal flowchart in the radio parts reception base unit: a voice signal from tel line is encoded to digital data and converted into a 1.9ghz modulated radio signal by bbic(ic501). The rf signal, after which is amplified in bbic, is ...

  • Page 10

    10 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 4.2. Block diagram (base unit_main) kx-tgh260/262/263/264 block diagram (base unit_main) side_tone circuit crystal 10.368mhz tr_rly tip ring tel_jack vrf /vpa rf_block ic501 bbic dc5.5v+ gnd dc_jack + - charge 3 4 2 1 d101 charge detect q...

  • Page 11

    11 kx-tgh260/kx-tgh262/kx-tgh263/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

    12 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/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 di ag ram (base...

  • Page 13

    13 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 4.5. Circuit operation (base unit) general description: (bbic, flash memory, eerrom) is a digital speech/signal processing system that implements all the functions of speech compression, record and playback, and memory management required...

  • Page 14

    14 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 4.5.6. Power supply circuit/reset circuit the power supply voltage from ac adaptor is converted to vbat (3.0v) in ic302. And +3.0v for peripherals and analog part is insulated from vbat by doubler of bbic. Circuit operation: +5.5v +5.5v +...

  • Page 15

    15 kx-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. R 3 72 d 3 62 r 3 71 charge+ r373 c351 f301 dcp charge- +5.5v dcm k a.

  • Page 16

    16 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 4.5.7. Telephone line interface telephone line interface circuit: function • bell signal detection • on/off hook and pulse dial circuit • side tone circuit bell (ringing) signal detection and off hook circuit: in the idle mode, q141 is op...

  • Page 17

    17 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 4.5.8. Parallel connection detect circuit/auto disconnect 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 t...

  • Page 18

    18 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 4.5.9. 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...

  • Page 19

    19 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 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...

  • Page 20: Ic1

    20 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 4.6. Block diagram (handset) ic1 ic3 micp micn lsrp paoutp paoutn ckm// ckm/stm bbic 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 (l...

  • 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

    22 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 (base band ic): ic1 - all data signals (forming/analyzing ack or cmd signal) - all interfaces (e...

  • Page 23

    23 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 4.8.3. Charge circuit circuit operation: when charging the handset on the base unit, the charge current is as follows; dcp(5.5v) → f301 → r371 → r372 → d362 → charge+(base) → charge+(handset) → r8 → q3 → f1 → battery+... Battery... Batter...

  • Page 24

    24 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 4.9. Behavior of electric power failure in case that the power from ac adaptor is lost and lose radio waves, bbic (ic1) turns q11 on since handset presumes that base unit's power is falied. Base unit detects that power voltage of ac adapt...

  • Page 25: 6 Installation Instructions

    25 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 5 location of controls and components refer to the operating instructions. Note: you can download and refer to the operating instructions (instruction book) on tsn server. 6 installation instructions refer to the operating instructions. N...

  • Page 26: 8 Test Mode

    26 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 8 test mode 8.1. Engineering mode 8.1.1. Base unit 1). Press { menu } . 2). Select "settings" using or then press { select } or {>} . H/s key operation h/s lcd {^} 3). Enter "7", "2", "6", "2", "7", "6", "6", "4". Note: 7262 7664 = pana s...

  • Page 27

    27 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 frequently used items (base unit) ex.) note: (*1) when you enter the address or new data, please refer to the table below. Items address default data new data remarks c-id(fsk) sensitivity 06 0e 00 01 (6db up) 02 (12db up) when the hex ch...

  • Page 28

    28 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 8.1.2. Handset important: make sure the address on lcd is correct when entering new data. Otherwise, you may ruin the unit. H/s lcd 1). Press { menu } . 2). Select "settings" using or then press { select } or {>} . {^} {v} 3). Enter "7", ...

  • Page 29

    29 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 frequently used items (handset) ex.) note: (*1) when you enter the address or new data, please refer to the table below. (*2) use these items in a read-only mode to confirm the contents. Careless rewriting may cause serious damage to the ...

  • Page 30: 9 Service Mode

    30 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/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 no...

  • Page 31: 10 Troubleshooting Guide

    31 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 10 troubleshooting guide 10.1. Troubleshooting flowchart cross reference: check power (p.32) check record (p.33) check playback (p.36) check battery charge (p.36) check link (p.37) check the rf part (p.39) check handset transmission (p.44...

  • Page 32

    32 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 10.1.1. Check power 10.1.1.1. Base unit cross reference: power supply circuit/reset circuit (p.14) note: bbic is ic501. (*1) refer to specifications (p.7) for part number and supply voltage of ac adaptor. (*2) refer to circuit board (base...

  • Page 33

    33 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 10.1.2. Check record 10.1.2.1. Base unit not record incoming message cross reference: telephone line interface (p.16) parallel connection detect circuit/auto disconnect circuit (p.17) note: flash memory is ic601. Bbic is ic501. Check bell...

  • Page 34

    34 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 a) 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 chan...

  • Page 35

    35 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 b) 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 detection. 1) ~ 2) are same as (a). 3) press "5","1","1". 4) then enter the b...

  • Page 36

    36 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 10.1.3. Check playback 10.1.3.1. Base unit cross reference: power supply circuit/reset circuit (p.14) note: flash memory is ic601. Bbic is ic501. (*1) refer to circuit board (base unit_main) (p.77). 10.1.4. Check battery charge 10.1.4.1. ...

  • Page 37

    37 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 10.1.5. Check link 10.1.5.1. Base unit cross reference: power supply circuit/reset circuit (p.14) check the rf part (p.39) note: refer to things to do after replacing ic or x'tal (p.52)(p.58) for base unit. (*1) how to adjust the frequenc...

  • Page 38

    38 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 10.1.5.2. Handset cross reference: power supply circuit/reset circuit (p.22) check the rf part (p.39) note: refer to things to do after replacing ic or x'tal (p.53)(p.59) for handset. (*1) how to adjust the frequency of x1. Check around p...

  • Page 39

    39 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 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 1...

  • Page 40

    40 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 10.1.6.2. Rf check flowchart each item (1 ~ 5) of rf check flowchart corresponds to check table for rf part (p.41). Please refer to the each item. Note: (*1) refer to check link (p.37). Start link confirmation normal 1 control signal conf...

  • Page 41

    41 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 10.1.6.3. Check table for rf part note: (*1) refer to commands (p.55) (*2) adjustment standard (base unit) (p.56) (*3) adjustment standard (handset) (p.57) no. Item bu (base unit) check hs (handset) check 1 link confirmation normal hs, bu...

  • Page 42

    42 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 10.1.6.4. Test range check circuit block which range is defective can be found by the following check. Chart1: setting of tx power and rx sensitivity in range confirmation tx test, rx test note: (*1) refer to commands (p.55). Item bu (bas...

  • Page 43

    43 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 10.1.7. Registering a handset to the base unit 10.1.8. Deregistering a handset {menu} i # 1 3 0 l l l l the supplied handset and base unit are pre-registered. If for some reason the handset is not registered to the base unit, re-register ...

  • Page 44

    44 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 10.1.9. Check handset transmission 10.1.10. Check handset reception note: when checking the rf part, refer to check the rf part (p.39). 10.1.11. Check caller id cross reference: telephone line interface (p.16) calling line identification ...

  • Page 45

    45 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 10.1.12. Check bt communication note: (*1) refer to circuit board (base unit_main) bottom view (p.78) plug in the ac power source and wait 10 seconds. Is it possible to enter the "bluetooth" menu? Is it possible to register bt_headset? Ch...

  • Page 46

    46 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 cross reference: schematic diagram (bt module) (p.70) note: (*2) after replacing, need to adjust the frequency of bt. Refer to things to do after replacing ic or x'tal (p.58) check the circuit of around power and reset parts of bt module....

  • Page 47

    47 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 11 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 c...

  • Page 48

    48 kx-tgh260/kx-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

    49 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 11.1.2. Handset remove the 4 screws. Insert a plastic card. (ex. Used sim card etc.) between the cabinet body and the cabinet cover, then pull it along the gap to open the cabinet. Likewise, open the other side of the cabinet. Remove the ...

  • 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

    51 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 11.2. How to replace the handset lcd note: the illustrations are simplified in this page. They may differ 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...

  • Page 52

    52 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 12 measurements and adjustments this chapter explains the measuring equipment, the jig connection, and the pc setting method necessary for the measurement in troubleshooting guide (p.31) 12.1. Equipment required • digital multi-meter (dmm...

  • Page 53

    53 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 12.2.2. Connections (handset) connect the dc power or battery 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...

  • Page 54

    54 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 12.2.3. How to install batch file into p.C. Note: • “*****” varies depending on the country or models. 1. Insert the batch file cd-rom into cd-rom drive and copy pnzztg**** folder to your pc (example: d drive). 2. Open an ms-dos mode wind...

  • Page 55

    55 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 12.2.4. Commands see the table below for frequently used commands. Command name function example rdeeprom read the data of eeprom type “rdeeprom 00 00 ff”, and the data from address “00 00” to “ff” is read out. Readid read id (rfpi) type ...

  • Page 56

    56 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 12.3. Adjustment standard (base unit) when connecting the simulator equipment for checking, please refer to below. 12.3.1. Bottom view note: (*1) refers to no.2 of check table for rf part (p.41) (*2) refers to power supply circuit/reset c...

  • Page 57

    57 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 12.4. Adjustment standard (handset) when connecting the simulator equipment for checking, please refer to below. 12.4.1. Component view note: (*1) refers to no.2 of check check table for rf part (p.41) (*2) refers to power supply circuit/...

  • Page 58

    58 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 12.5. Things to do after replacing ic or x'tal if repairing or replacing eeprom and x'tal, it is necessary to download the required data such as programming data or adjustment data, etc. In memory. The set doesn't operate if it is not exe...

  • Page 59

    59 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 12.5.1.2. Handset first, operate the pc setting according to the setting method of jig (p.52). Then download the appropriate data according to the following procedures. Note: (*2) xxx_yyy: revision number "xxx_yyy" vary depending on the c...

  • Page 60

    60 kx-tgh260/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

    61 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 12.7. Bluetooth frequency table ch. Frequency (mhz) ch. Frequency (mhz) ch. Frequency (mhz) 0 2402 33 2435 66 2468 1 2403 34 2436 67 2469 2 2404 35 2437 68 2470 3 2405 36 2438 69 2471 4 2406 37 2439 70 2472 5 2407 38 2440 71 2473 6 2408 3...

  • Page 62: 13 Miscellaneous

    62 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 13 miscellaneous 13.1. How to replace the llp (leadless leadframe package) ic 13.1.1. 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 ir...

  • Page 63

    63 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 13.1.4. 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 ...

  • Page 64

    64 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 13.2. How to replace the flat package ic even if you do not have the special tools (for example, a spot heater) to remove the flat ic, with some solder (large amount), a soldering iron and a cutter knife, you can easily remove the ics tha...

  • Page 65

    65 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 13.2.3. 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 ...

  • Page 66

    66 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 13.3. Terminal guide of the ics, transistors and diodes 13.3.1. Base unit 13.3.2. Handset b c e c b e b1abdm000001, b1adge000012 b1adnb000003, 2sc6054jsl 2sa1576s, b1gbcfyy0020 1 4 8 5 pnwi1tgh260h pnwi2tgh260h pnwi3tgh260h c1cb00003663 d...

  • Page 67: 14 Schematic Diagram

    67 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 14 schematic diagram 14.1. For schematic diagram 14.1.1. Base unit (schematic diagram (base unit_main)) notes: 1. Dc voltage measurements are taken with voltmeter from the negative voltage line. 2. The schematic diagrams may be modified a...

  • Page 68

    68 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 14.2. Schematic diagram (base unit_main) 14.2.1. Kx-tgh260 sp phone rx vdd4: 3.0v vdd5: 3.0v rf_rx rf_tx bt headset rx cell phone tx bt headset tx cell phone rx short short short short short short bt_rst spi_do spi_clk tam_csn i2c_scl cha...

  • Page 69

    69 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 kx-tgh260/261/262/263/264 schematic diagram (base unit (main)) nc: no components vdd3: 3.0v power supply from handset 5.5v ! Caller id bell vdd1: 1.8v rx tx (1) (2) (5) (6) (7) (8) (9) (3) (4) (10) (11) qspi_cs qspi_io3 qspi_io2 qspi_sck ...

  • Page 70

    70 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 14.3. Schematic diagram (bt module) gnd gnd c4 0.1u c3 0.1u c2 0.1u c1 0.1u 10 gnd gnd gnd gnd c11 nc gnd gnd cl1_gnd cl2_pcm_sync cl3_pcm_dout cl4_gnd cl5_md0 cl6_rx cl7_gnd cl8_x0 cl9_tx cl10_tdo cl11_resetc cl12_tms cl13_tck cl14_reset...

  • Page 71

    71 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 kx-tgh260/262/263/264 schematic diagram (bt module) gnd gnd gnd gnd gnd gn gnd gnd gnd c8 18p c7 2.2u c6 2.2u c5 2.2u c10 470n c9 2.2u gnd gnd gnd gnd gnd cl32_pcm_clk cl31_pcm_in cl30_sot0/p22 cl29_sio0/p21 cl28_gnd cl27_vdd cl26_gnd cl2...

  • Page 72

    72 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 14.4. Schematic diagram (base unit_operation) 14.4.1. Kx-tgh260 kx-tgh260/262/263/264 schematic diagram (base unit_operation) msg_led keys_e keys_d keyin2 keyin3 keys_c keyin1 led_vdd *led904 green a k led902 red a k *led905 green a k *le...

  • Page 73

    73 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 memo.

  • Page 74

    74 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 14.5. Schematic diagram (handset_main) nc: no components short nr_led lcd_reset stb_d lcd_cs stb_b stb_c battery_on eep_wp battery_on charge_ctrl charge_det stb_cstb_c stb_dstb_d kin_1 nr_led stb_bstb_b stb_astb_a stb_f socp lcd_led0 stb_...

  • Page 75

    75 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 kx-tgha20 schematic diagram (handset_main) nc: no components sp phone rx handset rx handset tx sp phone tx (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13) (14) (15) (16) (17) short short short short short short charge_det charge_c...

  • Page 76

    76 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 memo.

  • Page 77: 15 Printed Circuit Board

    77 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 15 printed circuit board 15.1. Circuit board (base unit_main) 15.1.1. Component view kx-tgh260/262/263/264 circuit board (base unit_main (component view)) k x - t g h 2 6 0 p n l b 2 2 8 1 z ylw brn gry pur org blu hak_cl1 msg_le d p101 k...

  • Page 78

    78 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 15.1.2. Bottom view kx-tgh260/262/263/264 circuit board (base unit_main (bottom view)) 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...

  • Page 79

    79 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 15.2. Circuit board (base unit_operation) 15.2.1. Kx-tgh260 kx-tgh260/262/263/264 circuit board (base unit_operation (component 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...

  • Page 80

    80 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 memo.

  • Page 81

    81 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 15.3. Circuit board (handset_main) 15.3.1. Component view kx-tgha20 circuit board (handset_main (component view)) 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 c7...

  • Page 82

    82 kx-tgh260/kx-tgh262/kx-tgh263/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

    83 kx-tgh260/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

    84 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 16.2. Cabinet and electrical parts (handset) note: (*1) this cable is fixed by heat-sealing. Refer to how to replace the handset lcd (p.51). (*2) the rechargeable ni-mh battery hhr-4dpa is available through sales route of panasonic. (*3) ...

  • 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

    88 kx-tgh260/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

    91 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 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...

  • Page 92

    92 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 16.5.1.3. Operational p.C. Board parts 16.5.2. Handset 16.5.2.1. Cabinet and electrical parts note: (*1) when replacing the handset lcd, see how to replace the handset lcd (p.51). R160 erj3geyj821 820 s r162 erj3geyj473 47k s r163 d0gg390...

  • Page 93

    93 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 16.5.2.2. Main p.C. Board parts note: (*1) reconfirm the model no. Written on the handset's name plate when replacing pcb100. Because the model no. Of the optional handset may differ from the included handset. (*2) when replacing ic1, ic3...

  • Page 94

    94 kx-tgh260/kx-tgh262/kx-tgh263/kx-tgh264/kx-tgha20/kx-tga20 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-tgh260b 16.5.4.2. Kx-tgh262b 16.5.4.3. Kx-tgh263b 16.5.4.4. Kx-tgh264b 16.5.4.5. ...

  • Page 95: Telephone Equipment

    © panasonic system networks co., ltd. 2014 unauthorized copying and distribution is a violation of 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 ve...

  • Page 96: 2 Replacement Parts List

    2 1 original service manual information 2 replacement parts list 2.1. Reference chart 2.2. Original and new parts comparison lists serial no.Label tells you the suffix code as follows. Please refer to "1 original service manual information". Nm model no. On s/m destinations order no. Of s/m suffix c...