Panasonic KX-TGC220AL Service manual - 3 Specifications

Other manuals for KX-TGC220AL: Operating Instructions Manual
Manual is about: Telephone Equipment. Digital Cordless Answering System

Summary of KX-TGC220AL

  • Page 1

    © panasonic system networks co., ltd. 2014 unauthorized copying and distribution is a violation of law. Order no. Km41410878ce telephone equipment model no. Kx-tgc220al kx-tgc220nz kx-tgc222al kx-tgc222nz kx-tgc223al kx-tgc223nz kx-tgca20az digital cordless answering system s: silver version (al : f...

  • Page 2

    2 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 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 attempting to service...

  • Page 3: Table of Contents

    3 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 table of contents page page 1 safety precautions----------------------------------------------- 5 1.1. For service technicians --------------------------------- 5 2 warning -------------------------------------------------------------- 5 2.1. Battery caution...

  • Page 4

    4 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 14.1.1. Component view ------------------------------------ 73 14.1.2. Bottom view ------------------------------------------ 74 14.2. Base unit (operation)----------------------------------- 75 14.3. Handset--------------------------------------------------...

  • Page 5: 1 Safety Precautions

    5 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 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 repair work. 1. Whe...

  • Page 6: 2.3.

    6 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 2.2.1. Suggested pbf solder there are several types of pbf solder available commercially. While this product is manufactured using tin, silver, and copper (sn+ag+cu), you can also use tin and copper (sn+cu), or tin, zinc, and bismuth (sn+zn+bi). Please check...

  • Page 7: 3 Specifications

    7 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 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 • optional dect ...

  • Page 8: 4 Technical Descriptions

    8 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 4 technical descriptions 4.1. Block diagram (base unit_main) oper a tion a l p.C. Bo a rd d101 charge_contact + - sp x501 1 3 .824 mhz ant 1 tel jack l1t l1r dcp dcm dc jack rly side tone circuit q161 q141 bell detect hook bell q111 lin lout rf_part hsmip hs...

  • Page 9: 4.2.

    9 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 4.2. Circuit operation (base unit) 4.2.1. Outline base unit consists of the following ics as shown in block diagram (base unit_main) (p.8). • dect bbic (base band ic): ic501 - handling all the audio, signal and data processing needed in a dect base unit - co...

  • Page 10: 4.3.

    10 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 4.3. Block diagram (base unit_rf part) rxp rxn ant1 txp txn.

  • Page 11: 4.4.

    11 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 4.4. 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 in a digital telep...

  • Page 12

    12 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 4.4.4. 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 vbat rstn(reset) pin 54 vba...

  • Page 13

    13 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 4.4.4.1. Charge circuit the voltage from the ac adaptor is supplied to the charge circuits. D 3 61 r 3 72 r 3 71 f301 dcp +5.5v charge- charge+ ( ) dcm d 3 62 c 3 51.

  • Page 14

    14 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 4.4.5. Telephone line interface telephone line interface circuit: function • bell signal detection • on/off hook and pulse dial circuit • side tone circuit bell signal detection and off hook circuit: in the idle mode, q141 is open to cut the dc loop current...

  • Page 15: 4.5.

    15 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 4.5. Block diagram (handset) qspi flash memory ic4 re s et re s et pin 71 speaker receiver mic charge circuit q2, q3, q4, q9, r8 charge contacts charge(+) charge_ctrl charge_det eeprom scl sda battery terminal r45 vbat batt- 1.8 v q1 1.8 v lcd cd reset cs s...

  • Page 16: 4.6.

    16 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 4.6. Circuit operation (handset) 4.6.1. Outline handset consists of the following ics as shown in block diagram (handset) (p.15). • dect bbic (base band ic): ic1 - all data signals (forming/analyzing ack or cmd signal) - all interfaces (ex: key, detector ci...

  • Page 17: 4.7.

    17 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 4.7. Signal route note: : inside of handset ---ant. - - ic501(46/47 - 28) - c184 - q161 - q141 - d101 - p101 - t/r(tel line) t/r(tel line) - p101 - d101 - q141 - r165 - r177 - c173 - q171 - c178 - ic501(16 - 44/45) - - ant. --- ---ant. - - ic501(46/47 - 28)...

  • Page 18

    18 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 rf part signal route signal route in 䊻㻌 route 䊻㻌 out handset rf [ tx_route ] handset rf [ rx_route ] base unit rf [ tx_route ] base unit rf [ rx_route ] ic1(86/87) - c859 - ant ant - ic(1/2) ic501(44/45) - c819 - c872 - ant ant - c872 - c895 - ic501(46/47) ...

  • Page 19: 6 Installation Instructions

    19 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 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. Note: you can downlo...

  • Page 20: 8 Test Mode

    20 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 8 test mode 8.1. Engineering mode 8.1.1. Base unit important: make sure the address on lcd is correct when entering new data. Otherwise, you may ruin the unit. /eco dial keypad 9). Press (off) to return to standby mode. After that, turn the base unit power ...

  • Page 21

    21 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 frequently used items (base unit) ex.) note: (*1) when you enter the address or new data, please refer to the table below. (*2) items address default data new data remarks c-id (fsk) sensitivity 08 6a/08 69 00/28 00/1c (3 db up) 00/14 (6 db up) when hex cha...

  • Page 22

    22 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 8.1.2. Handset important: make sure the address on lcd is correct when entering new data. Otherwise, you may ruin the unit. 9). Press (off) to return to standby mode. After that, turn the base unit power off and then power on. 1). Press { } 2). Select "init...

  • Page 23

    23 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 frequently used items (handset) ex.) note: (*1) when you enter the address or new data, please refer to the table below. (*2) when adding “01” (hex) to default value, sending level increases by 0.25 db. Ex.) (*3) when reducing “01” (hex) from default value,...

  • Page 24: 8.2.

    24 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 8.2. Eeprom layout (handset) 8.2.1. Scope the purpose of this section is to describe the layout of the eeprom (ic3) for the kx-tgca20 handset. The eeprom contains hardware, software, and user specific parameters. Some parameters are set during production of...

  • Page 25: 8.3.

    25 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 8.3. 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.) note: • some menus are not reset. Refer to operating instructions (p.19). • the reset menus ...

  • Page 26: 9 Troubleshooting Guide

    26 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 9 troubleshooting guide 9.1. Troubleshooting flowchart *1 kx-tgc220 only cross reference: check power (p.27) check playback (p.29) check record (p.28) check battery charge (p.29) check link (p.30) check the rf part (p.32) check handset transmission (p.37) c...

  • Page 27

    27 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 9.1.1. Check power 9.1.1.1. Base unit cross reference: power supply circuit/reset circuit (p.12) note: bbic is ic501. (*1) refer to specifications (p.7) for part number and supply voltage of ac adaptor. (*2) refer to base unit (main) (p.73). 9.1.1.2. Handse...

  • Page 28

    28 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 9.1.2. Check record 9.1.2.1. Base unit a) not record incoming message cross reference: signal route (p.17) telephone line interface (p.14) note: flash memory is ic601. Bbic is ic501. Check bell signal. Ok check telephone line interface [bell]. Does the unit...

  • Page 29

    29 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 9.1.3. Check playback 9.1.3.1. Base unit cross reference: power supply circuit/reset circuit (p.12) note: flash memory is ic601. Bbic is ic1. (*1) refer to base unit (main) (p.73). 9.1.4. Check battery charge 9.1.4.1. Base unit cross reference: charge circu...

  • Page 30

    30 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 9.1.5. Check link 9.1.5.1. Base unit cross reference: power supply circuit/reset circuit (p.12) check the rf part (p.32) note: *1 how to adjust +3.0v: execute the command "vda" refer to things to do after replacing ic or x'tal (p.55) for base unit. *2 how t...

  • Page 31

    31 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 9.1.5.2. Handset cross reference: power supply circuit/reset circuit (p.12) check the rf part (p.32) note: (*1) refer to troubleshooting by handset (p.29) to see the frequency, execute the command “sfr“, then check the tp_ckm (ic1-55pin). To adjust frequenc...

  • Page 32

    32 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 9.1.6. Check the rf part 9.1.6.1. 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. Prepare regular hs(...

  • Page 33

    33 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 9.1.6.2. Rf check flowchart each item (1 ~ 6) of rf check flowchart corresponds to check table for rf part (p.34). Please refer to the each item. Note: (*1) refer to check link (p.30). Start link confirmation normal 1 control signal confirmation x'tal frequ...

  • Page 34

    34 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 9.1.6.3. Check table for rf part note: (*1) adjustment standard (base unit) (p.51) (*2) adjustment standard (handset) (p.54) no. Item bu (base unit) check hs (handset) check 1 link confirmation normal hs, bu mode [normal mode] 1. Register regular hs to bu (...

  • Page 35

    35 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 9.1.6.4. 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.50). Item bu (base unit) check hs (ha...

  • Page 36

    36 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 9.1.7. Registering a handset to the base unit 9.1.8. Deregistering a handset 1 handset: {menu} 2 base unit: press and hold {locator} for about 5 seconds. L if all registered handsets start ringing, press {locator} again to stop, then repeat this step. (kx-t...

  • Page 37

    37 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 9.1.9. Check handset transmission cross reference: signal route (p.17) 9.1.10. Check handset reception cross reference: signal route (p.17) note: when checking the rf part, refer to check the rf part (p.32). 9.1.11. Check caller id cross reference: telephon...

  • Page 38

    38 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 9.1.12. Bell reception 9.1.12.1. Base unit *1 tgc220 only 9.1.12.2. Handset cross reference: telephone line interface (p.14) check link (p.30) how to check the handset speaker or receiver (p.58) 9.1.13. Check tam operation note: (*1) when replacing flash me...

  • Page 39: 9.2.

    39 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 9.2. Troubleshooting by symptom (base unit and charger unit) if your unit has below symptoms, follow the instructions in remedy column. Remedies depend on whether you have dect tester (*1) or not. Note: (*1) a general repair is possible even if you don’t ha...

  • Page 40

    40 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 (i) dtmf generator check - 1. Connect telephone socket to dtmf tester. (load=600 ) 2. Link handset and push dial key. 3. Confirm dtmf character. 4. Confirm that the high group is -8.0 ± 2 dbm (for nz and al) 5. Confirm that the low group is-10 ± 2 dbm (for...

  • Page 41: 9.3.

    41 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 9.3. Troubleshooting by symptom (handset) if your unit has below symptoms, follow the instructions in remedy column. Remedies depend on whether you have dect tester (*1) or not. Note: (*1) a general repair is possible even if you don’t have the dect tester ...

  • Page 42

    42 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 (f)* battery monitor check - 1. Apply 2.25 v between batt+ and batt-. 2. Execute the command sendchar pad sendchar led 0 sendchar crx 0 1 sendchar ad1 it assumes that the return value is xx. A) xx: 70: no need to adjust b) xx: 66 ~ 6f: need to adjust xx: 71...

  • Page 43

    43 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 (o) sp phone audio check and confirmation - 1. Link to base which is connected to line simulator. 2. Set line voltage to 48 v and line current to 50 ma. 3. Set the handset off-hook using sp-phone key. 4. Input -30 dbm (600 )/1 khz to line i/f and measure r...

  • Page 44

    44 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 10 disassembly and assembly instructions 10.1. Disassembly instructions 10.1.1. Base unit 10.1.1.1. Kx-tgc220 ձ remove the 2 screws to remove the cabinet cover. ղ remove the solders. ճ remove the main p.C. Board. ճ main p.C. Board ձ 4 screws solders ղ.

  • Page 45

    45 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 մ remove the 2 screws to remove the charge case and the operational p.C. Board. Operational p.C. Board chage case մ screw մ screw.

  • Page 46

    46 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 10.1.2. Handset 2 screws ձ cabinet body cabinet cover cabinet cover screw շ յ solders main p.C. Board 2 charge terminals ձ remove the 2 screws. ղ insert a plastic card. (ex. Used sim card etc.) between the cabinet body and the cabinet cover, then pull it al...

  • Page 47

    47 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 10.1.3. Charger unit ձ ղ remove the solders to remove the 2 charge terminals. 2 charge terminals remove the cabinet cover. ղ solders ձ cabinet cover.

  • Page 48

    48 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 10.2. How to replace the handset lcd note: the illustrations are simplified in this page. They may differ from the actual product. Peel off the ffc (flexible flat cable) from the lcd, in the direction of the arrow. Take care to ensure that the foil on the p...

  • Page 49: 11.1. Equipment Required

    49 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 11 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.26) 11.1. Equipment required • digital multi-meter (dmm): it must be able ...

  • Page 50

    50 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 11.2.2. How to install batch file into p.C. Note: “*****” varies depending on the country or models. 11.2.3. Commands see the table below for frequently used commands. Command name function example rdeeprom read the data of eeprom type “rdeeprom 00 00 ff”, ...

  • Page 51

    51 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 11.3. Adjustment standard (base unit) when connecting the simulator equipment for checking, please refer to below. 11.3.1. Bottom view note: (*1) is referred to no.2 of check table for rf part (p.34) (*2) is referred to power supply circuit/reset circuit (p...

  • Page 52

    52 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 11.4. The setting method of jig (handset) this section explains the pc setting to use command required in check point (handset)(p.41). • serial jig cable: pqzz1cd300e* • pc which runs in dos mode • batch file cd-rom for setting: refer to parts list of fixtu...

  • Page 53

    53 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 11.4.2. How to install batch file into p.C. Note: • “*****” varies depending on the country or models. 11.4.3. Commands see the table below for frequently used commands. Command name function example rdeeprom read the data of eeprom type “rdeeprom 00 00 ff”...

  • Page 54

    54 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 11.5. Adjustment standard (handset) when connecting the simulator equipment for checking, please refer to below. 11.5.1. Component view note: (a) - (r) is referred to check point (handset) (p.41) c22 batt+ batt- c29 c36 c41 c43 c44 c45 c46 c47 c52 c53 c55 c...

  • Page 55

    55 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 11.6. 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 executed. 11.6.1. How ...

  • Page 56

    56 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 11.6.1.2. Handset first, operate the pc setting according to the setting method of jig (p.49). Then download the appropriate data according to the following procedures. Note: (*2) ww: country code, xxx_yyy: revision number “xxx_yyy” vary depending on the co...

  • Page 57: 11.7. Rf Specification

    57 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 11.7. Rf specification 11.7.1. Base unit *: refer to check point (base unit) (p.39) 11.7.2. Handset **: refer to check point (handset) (p.41) item value refer to -. * tx power 18.5 dbm ~ 25 dbm check point (base unit) (j) modulation -350 ± 50/+350 ± 50 khz/...

  • Page 58: 11.9. Frequency Table (Mhz)

    58 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 11.8. How to check the handset speaker or receiver 1. Prepare the digital voltmeter, and set the selector knob to ohm meter. 2. Put the probes at the speaker terminals as shown below. 11.9. Frequency table (mhz) note: channel no. 10: in the test mode on bas...

  • Page 59: 12 Miscellaneous

    59 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 12 miscellaneous 12.1. 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 that ...

  • Page 60

    60 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 12.1.3. How to install the ic 1. Temporarily fix the flat package ic, soldering the two marked pins. *check the accuracy of the ic setting with the corresponding soldering foil. 2. Apply flux to all pins of the flat package ic. 3. Solder the pins, sliding t...

  • Page 61

    61 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 12.2. How to replace the shield case 12.2.1. Preparation • pbf (: pb free) solder • soldering iron tip temperature of 700 f ± 20 f (370 c ± 10 c) note: we recommend a 30 to 40 watt soldering iron. An expert may be able to use a 60 to 80 watt iron where ...

  • Page 62

    62 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 12.2.4. How to install the shield case note: • if you don’t have special tools (ex. Hot air disordering tool), conduct the following operations. • shield case’s no. : pnmc1091z 1. Put the shield case. 2. Solder the surroundings..

  • Page 63

    63 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 12.3. Terminal guide of the ics, transistors and diodes 12.3.1. Base unit 12.3.2. Handset b c e da2j10100l c c b e 2sc6054jsl b1abdm000001 drc9113z0l b1abder000009 b1abce000009 1 4 8 5 pnwi1gc210gh pnwi2gc220gh c2hbcy000144 dsc7003s0l cathode anode b0eckm00...

  • Page 64

    64 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 memo.

  • Page 65: 13 Schematic Diagram

    65 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 13 schematic diagram 13.1. For schematic diagram 13.1.1. Base unit (base unit (main)) notes: 1. Dc voltage measurements are taken with voltmeter from the negative voltage line. 2. The schematic diagrams may be modified at any time with the development of ne...

  • Page 66: 13.2. Base Unit (Main)

    66 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 13.2. Base unit (main) 13.2.1. Kx-tgc220 tx rf rx rf 1/2 short short short short short short urx eep_wp eep_sda spi_clk eep_scl spi_do spi_di jtag_rtck spi_clk spi_do spi_di spi_cs keyin2 keyin3 keyin1 spi_cs jtag_tdo jtag_tdi jtag_tck jtag_tms utx jtag_tck...

  • Page 67

    67 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 nc: no components kx-tgc220/222/223 schematic diagram (base unit (main)) 3.0v rx tx 1 utx urx hook bell keys_c keys_d eep_scl eep_sda eep_wp charge_det pulse_mute pulse_mute hook bell c120 1000p c351 1u c611 0.1u r501 10 dcp c521 1u pnlb2385ya-gw pcb re1 dc...

  • Page 68

    68 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 13.3. Base unit (operation) nc: no components kx-tgc220/222/223 schematic diagram (base unit_operation) led902 a k led_vdd ans_led msg_led keyin1 keyin2 keyin3 keys_c keys_e keys_d led901 a k msg repeat answer locator erase down up skip 9 1 (ans_led) (msg_l...

  • Page 69

    69 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 memo.

  • Page 70: 13.4. Handset (Main)

    70 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 13.4. Handset (main) (1) (2) (3) (4) (5) nc: no components charge current tx _rf rx _rf * when "sfr" command is executed, 13.824mhz frequency will be output. 0.85v 1vp-p 0v ! Short lcd_reset stb_d lcd_cs stb_b stb_c lcd_scl kin_4 kin_3 kin_2 kin_1 lcd_cd ke...

  • Page 71

    71 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 nc: no components kx-tgca20az schematic diagram (handset_main) (1) (2) (3) (4) (5) 2/2 1.8v handset rx handset tx/sp-phone tx sp-phone rx rx_rf tx_rf short short short short short charge_det charge_ctrl stb_a stb_e socn socp *pcb re1 carbon_cl1 c73 nc c72 n...

  • Page 72

    72 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 memo.

  • Page 73: 14 Printed Circuit Board

    73 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 14 printed circuit board 14.1. Base unit (main) 14.1.1. Component view kx-tgc220/222/223 main board (base unit (component view)) msg_led p101 keys_c keys_d keys_e c810 c819 c820 za1 ra151 c477 c478 l501 c863 sw1 c871 c872 c873 c874 led_vdd q141 q142 keyin1 ...

  • Page 74

    74 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 14.1.2. Bottom view kx-tgc220/222/223 main board (base unit (bottom view) t d o + - - + - + o r g s p b l u p u r dc g r y b r n y l w t e l p n l b 2 3 8 5 y - k x - t g c 2 x x h 2 0 1 4 . 0 4 . 1 8 pbf r t c k r s t n v c c a d c m d c p c 6 0 1 + 3 . 0 ...

  • Page 75: 14.2. Base Unit (Operation)

    75 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 14.2. Base unit (operation) kx-tgc220 operation board (base unit (component view)) led901 led902 answer answer1 msg msg1 msg2 msg3 up down locator erase skip repeat pnlb2320z kx-tgc2xxh pbf.

  • Page 76

    76 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 memo.

  • Page 77: 14.3. Handset

    77 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 14.3. Handset 14.3.1. Component view kx-tgca20 handset board (component view) c22 batt+ batt- c29 c36 c41 c43 c44 c45 c46 c47 c52 c53 c55 c56 c70 c71 ra2 c72 c73 c91 c96 c 9 3 c99 c1 c5 stm f1 receiver ant1_tp c866 sp-phone_speaker ant-short jtag cp4v d13 d...

  • Page 78

    78 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 14.3.2. Bottom view kx-tgca20 handset board (bottom view) 1 2 3 4 5 6 9 8 7 lcd l e d 1 l e d 2 l e d 3 l e d 4 l e d 5 l e d 6 l e f t d o w n r i g h t s p s h a r p u p f l a s h t a l k 2 o f f 1 a s t off2 talk1 0 i n t s o f t _ a 1 s o f t _ a 2 l e ...

  • Page 79

    79 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 15 exploded view and replacement parts list 15.1. Cabinet and electrical parts (base unit) 15.1.1. Kx-tgc220 a 1 2 3 ref.No. Figure a 2.6 x 8mm pcb1 pcb2 4 5 6 7 8 9 10 11 a a 12.

  • Page 80

    80 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 15.2. Cabinet and electrical parts (handset) note: (*1) this cable is fixed by welding. Refer to how to replace the handset lcd (p.48). (*2) the rechargeable ni-mh battery hhr-4my is available through sales route of panasonic. (*3) attach the spacer (no. 11...

  • Page 81

    81 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 15.3. Cabinet and electrical parts (charger unit) 200 200-1 200-3 200-4 200-2 200-5.

  • Page 82: 15.4. Accessories

    82 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 15.4. Accessories note: (*1) for base unit (*2) for charger unit a2 (*2) a4 a1 (*1) a3.

  • Page 83

    83 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 15.5. Replacement parts list 1. Rtl (retention time limited) note: the “rtl” marking indicates that its retention time is limited. When production is discontinued, this item will continue to be available only for a specific period of time. This period of ti...

  • Page 84

    84 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 15.5.1.3. Operational p.C.Board parts 15.5.2. Handset 15.5.2.1. Cabinet and electrical parts r151 erj2gej104 100k s r152 erj2gej134x 130k s r158 erj2gej472x 4.7k s r159 erj2gej102 1k s r160 erj3geyj271 270 s r162 erj2gej473 39 r163 d0gg390ja007 39 r164 erj2...

  • Page 85

    85 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 15.5.2.2. 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 ic4 or x1, make the adjustme...

  • Page 86

    86 kx-tgc220/kx-tgc222/kx-tgc223/kx-tgca20 15.5.5. Screws 15.5.6. Fixtures and tools note: (*1) see equipment required (p.49), and the setting method of jig the setting method of jig (handset)(p.52). (*2) when replacing the handset lcd, see how to replace the handset lcd (p.48). Adda safety ref. No....