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Panasonic KX-TG4771B Service Manual

Other manuals for KX-TG4771B: Operating Instructions Manual
Manual is about: Digital Corded/Cordless Answering System

Summary of KX-TG4771B

  • Page 1

    © panasonic system networks co., ltd. 2012 unauthorized copying and distribution is a violation of law. Order no. Km41112516ce f13 telephone equipment model no. Kx-tg4771b kx-tg4772b kx-tg4773b kx-tga470b digital corded/cordless answering system b: black version (for u.S.A.) (portable) kx-tga470b kx...

  • Page 2

    2 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 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 ser...

  • Page 3: Table of Contents

    3 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b table of contents page page 1 safety precautions----------------------------------------------- 4 1.1. For service technicians --------------------------------- 4 2 warning -------------------------------------------------------------- 4 2.1. Battery cau...

  • Page 4: 1 Safety Precautions

    4 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 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....

  • Page 5

    5 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 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 c...

  • Page 6: 3 Specifications

    6 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 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 h...

  • Page 7: 4 Technical Descriptions

    7 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 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 portable is same frequency. Refer to frequency table (p.58). 4.1.1. Tdd frame format 4.1.2. Tdma ...

  • Page 8

    8 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 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 1.9 ghz modulated radio signal by bbic(ic501). The rf signal, after which is amplified in bbic, is fed to selecte...

  • Page 9

    9 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 4.2. Block diagram (base unit_main) t e l line d101 q902 rly t ra n si st o r rly t ra n si st o r rly tr a n s is to r receive amp inuse detect 1 - + ~ ~ - + ~ ~ hook sw q903 q904 q905 q907 q913 q914 q161 lout side t o ne ci rcu it q171 lin hook lcd_blt...

  • Page 10

    10 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 4.3. Block diagram (base unit_rf part) kx-tg4771/4772/4773 block diagram (base unit_rf part) da801 ant2 ant1 txon rxon rxp rxn ant2 ant1 txp txn.

  • Page 11

    11 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 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 t...

  • Page 12

    12 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 4.4.4. Power supply circuit/reset circuit the power supply voltage from ac adaptor is converted to vbat (3.0 v) 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 5...

  • Page 13

    13 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 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 cur...

  • Page 14

    14 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 4.4.7. Calling line identification (caller id)/call waiting caller id function: caller id the caller id is a chargeable id which the user of a telephone circuit obtains by entering a contract with the telephone company to utilize a caller id service. Fo...

  • Page 15

    15 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b call waiting caller id calling identity delivery on call waiting (cidcw) is a class service that allows a customer, while off-hook on an existing call, to receive information about a calling party on a waited call. The transmission of the calling inform...

  • Page 16

    16 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 4.5. Block diagram (portable) ic1 ic3 mip min hsspoutp lout bell_led hsmip headset_det spoutp spoutn ckm//stm ckm/stm bbic reset chg_ctl chg_det wp , clk, d a t a keyst or obe_a~e keyin_1~5 charge q3 mic receiver headset jack cn4 led monitor sp lcd char...

  • Page 17

    17 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 4.6. Block diagram (portable_rf part) kx-tga470 block diagram (portable_rf part) da801 txon rxon rxp rxn ant txp txn.

  • Page 18

    18 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 4.7. Circuit operation (portable) 4.7.1. Outline portable consists of the following ics as shown in block diagram (portable) (p.16). • dect bbic (base band ic): ic1 - all data signals (forming/analyzing ack or cmd signal) - all interfaces (ex: key, dete...

  • Page 19

    19 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 4.7.3. Charge circuit circuit operation: when charging the portable on the base unit, the charge current is as follows; dc+(6.5 v) → f301 → r371 → r372 →charge+(base) → charge+(portable) → q3 → f1 → battery+... Battery... Battery- → r45 → gnd → charge-(...

  • Page 20

    20 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 4.8. Circuit operation (charger unit) charge control is executed at portable side so that the operation when using charger is also controlled by portable. Refer to circuit operation (portable) (p.18) the route for this is as follows: dc+pin of j1(+) → f...

  • Page 21

    21 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 4.9. Signal route note: : inside of portable portable mic - r73/74 - c11/13 - ra4 - ic1(22/23) - - ant. --- ---ant. - - ic501(46/47 - 28) - c184 - q161 - q902 - d101 - [p101] - t/r(tel line) t/r(tel line) - [p101] - d101 - q902 - r165 - c173 - q171 - c1...

  • Page 22

    22 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b rf part signal route signal route in 㸢 route 㸢 out portable rf [ tx_route ] portable rf [ rx_route ] base unit rf [ tx_route ] base unit rf [ rx_route ] ic1(44/45) - l809 - c812 - da801 - c803 - c801 - ant ant - c801 - c803 - da801 - c826 - ic1(46/47) i...

  • Page 23: 6 Installation Instructions

    23 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 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 do...

  • Page 24: 8 Test Mode

    24 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 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. 1). Press . 2). Select "initial setting" using {^} or {v} then press or {>} . H/s key operati...

  • Page 25

    25 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 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 frequency 00 07 / 00 08 00/01 - - use these items in a read-only mode to confirm the c...

  • Page 26

    26 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 8.1.2. Portable important: make sure the address on lcd is correct when entering new data. Otherwise, you may ruin the unit. H/s key operation h/s lcd 1). Press . 2). Select "initial setting" using or then press or {>} . {v} 3). Enter "7", "2", "6", "2"...

  • Page 27

    27 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b frequently used items (portable) 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 portable. Item...

  • Page 28: 9 Service Mode

    28 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 9 service mode 9.1. How to clear user setting (portable only) portable press 2, 5, 8, simultaneously until a beep sound is heard. Then single portable is initialized. (the contents of user setting are reset to factory default) *usage time is not cleared...

  • Page 29: 10 Troubleshooting Guide

    29 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 10 troubleshooting guide 10.1. Troubleshooting flowchart cross reference: check power (p.30) check playback (p.34) check record (p.31) check battery charge (p.34) check link (p.35) check the rf part (p.37) check portable transmission (p.42) check portab...

  • Page 30

    30 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 10.1.1. Check power 10.1.1.1. Base unit cross reference: power supply circuit/reset circuit (p.12) note: bbic is ic501. (*1) refer to specifications (p.6) for part number and supply voltage of ac adaptor. (*2) refer to base unit (main) (p.75). 10.1.1.2....

  • Page 31

    31 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 10.1.2. Check record 10.1.2.1. Base unit not record incoming message cross reference: signal route (p.21) telephone line interface (p.13) parallel connection detect circuit/auto disconnect circuit (p.13) note: flash memory is ic601. Bbic is ic501. Check...

  • Page 32

    32 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 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 changing the auto d...

  • Page 33

    33 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 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 a detection. 1) ~ 2) are same as (a). 3) press "5","1","1". 4) then enter the below last dig...

  • Page 34

    34 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 10.1.3. Check playback 10.1.3.1. 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.75). 10.1.4. Check battery charge 10.1.4.1. Portable cross reference: check...

  • Page 35

    35 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 10.1.5. Check link 10.1.5.1. Base unit cross reference: power supply circuit/reset circuit (p.12) check the rf part (p.37) note: *1 how to adjust +3.0v: execute the command "vda" refer to things to do after replacing ic or x'tal (p.56) for base unit. *2...

  • Page 36

    36 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 10.1.5.2. Portable cross reference: power supply circuit/reset circuit (p.18) check the rf part (p.37) note: *1 how to adjust +3.0v: execute the command "vda" refer to things to do after replacing ic or x'tal (p.57) for portable. *2 how to adjust the fr...

  • Page 37

    37 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 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 portable to the checked base unit, and regular p to regular bu. Note: (*1) p: portable (*2) bu: base unit 1. Prepare regul...

  • Page 38

    38 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 10.1.6.2. Rf check flowchart each item (1 ~ 5) of rf check flowchart corresponds to check table for rf part (p.39). Please refer to the each item. Note: (*1) refer to check link (p.35). Start link confirmation normal 1 control signal confirmation x'tal ...

  • Page 39

    39 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 10.1.6.3. Check table for rf part note: (*1) refer to commands (portable) (p.52) (*2) refer to commands (base unit) (p.52) (*3) adjustment standard (base unit) (p.53) (*4) adjustment standard (portable) (p.55) no. Item bu (base unit) check p (portable) ...

  • Page 40

    40 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 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 (base unit) (p.52). Item bu (base u...

  • Page 41

    41 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 10.1.7. Registering a portable to the base unit 10.1.8. Deregistering a portable the supplied portable and base unit are pre-registered. If for some reason the portable is not registered to the base unit, re-register the portable. 1 portable: 2 base uni...

  • Page 42

    42 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 10.1.9. Check portable transmission cross reference: signal route (p.21) 10.1.10. Check portable reception cross reference: signal route (p.21) note: when checking the rf part, refer to check the rf part (p.37). 10.1.11. Check caller id cross reference:...

  • Page 43

    43 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 11 disassembly and assembly instructions 11.1. Disassembly instructions 11.1.1. Base unit Ԙ remove the 6 screws to remove the cabinet cover. 6 screws Ԙ 1 screw solders ԙ cabinet cover parallel wire main p.C. Board ԙ remove 1 screw, parallel wire and sol...

  • Page 44

    44 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b Ԛ unhook the hook and remove the 2 screws to remove the jack holder. ԛ remove the 8 screws to remove the operation p.C. Board. 8 screws ԛ hook operation p.C. Board 2 screws Ԛ Ԛ.

  • Page 45

    45 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 11.1.2. Portable Ԙ remove the 2 screws. ԙ Ԛ likewise, open the other side of the cabinet. ԛ remove the cabinet cover by pushing it upward. Ԝ remove the solders and tape. Remove the 2 screws to remove the 2 charge terminals. ԝ Ԟ remove the screw to remov...

  • Page 46

    46 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 11.1.3. Charger unit Ԙ remove the screw to remove the cabinet cover. ԙ remove the solders to remove the 2 charge terminals. Ԙ screw ԙ solders main p.C. Board 2 charge terminals.

  • Page 47

    47 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 11.2. Assembly instructions 11.2.1. How to replace the base unit lcd 㽲 reflector sheet *process it as shown in figure. *process it as shown in figure. 㽳 diffusion sheet lcd 㽴 㽵 㽶 *process it as shown in figure. Reverse. Led p.C.B. Lcd holder lcd plate.

  • Page 48

    48 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 11.3. How to replace the portable 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 ...

  • Page 49

    49 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 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.29) 12.1. Equipment required • digital multi-meter (dmm): it must be a...

  • Page 50

    50 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 12.2.2. Connections (portable) 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 your pc calls...

  • Page 51

    51 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 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 window. 3. At the d...

  • Page 52

    52 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 12.2.4. Commands (base unit) see the table below for frequently used commands. 12.2.5. Commands (portable) 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...

  • Page 53

    53 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 12.3. Adjustment standard (base unit) when connecting the simulator equipment for checking, please refer to below. 12.3.1. Bottom view note: (*1) is referred to no.2 of check check table for rf part (p.39) (*2) is referred to power supply circuit/reset ...

  • Page 54

    54 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 12.4. Adjustment standard (charger unit) when connecting the simulator equipment for checking, please refer to below. 12.4.1. Bottom view d1 r1 f1 r2 a pnlb2081z -ig pbf charge- charge+ 12 /2 w digital volt meter dc power dc 5.5 v (gnd).

  • Page 55

    55 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 12.5. Adjustment standard (portable) when connecting the simulator equipment for checking, please refer to below. 12.5.1. Component view note: (*1) is referred to no.2 of check check table for rf part (p.39) (*2) is referred to power supply circuit/rese...

  • Page 56

    56 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 12.6. 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. 12.6.1. H...

  • Page 57

    57 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 12.6.1.2. Portable 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) xxx_yyy: revision number “xxx” and “yyy” vary depending on the country v...

  • Page 58

    58 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 12.7. 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 59: 13 Miscellaneous

    59 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 13 miscellaneous 13.1. How to replace the llp (leadless leadframe package) ic note: this description is only applied on the model with shield case. 13.1.1. Preparation • pbf (: pb free) solder • soldering iron tip temperature of 700 °f ± 20 °f (370 °c ±...

  • Page 60

    60 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 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 placing the ic,...

  • Page 61

    61 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 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 that have more tha...

  • Page 62

    62 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 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 the pins, slidi...

  • Page 63

    63 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 13.3. Terminal guide of the ics, transistors and diodes 13.3.1. Base unit 13.3.2. Portable 13.3.3. Charger unit c b e 1 2 3 4 8 5 4 1 pqvdptzt2530 maz805100l cathode anode lnj237w82ra b1gbcfyy0020, b1adgj000002, 2sc6054jsl b1abdm000001, 2sa1037k, b1gdcf...

  • Page 64: 14 Schematic Diagram

    64 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 14 schematic diagram 14.1. For schematic diagram 14.1.1. 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 o...

  • Page 65

    65 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b memo.

  • Page 66

    66 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 14.2. Base unit (main) nc: no components i d t _ g a t j jt ag_tm s l l e b jt ag_td i expdr_cs sp_led ans_led msg_led r l c _ r d p x e t l b _ d c l lcd_rst sp_mic_on jt ag_tc k jt ag_td o k c t r _ g a t j jt ag_r tc k spi2_do spi2_clk t e d _ k o o ...

  • Page 67

    67 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b kx-tg4771 schematic diagram (base unit (main)) nc: no components ! X r u x t u eep_wp spi_c s eep_sd a spi_cl k eep_sc l s c _ d c l spi_d o spi_d i l l e b keys_ f k l c _ 2 i p s o d _ 2 i p s d c _ d c l keys_ a keys_ b eep_wp eep_sc l eep_sd a keyin...

  • Page 68

    68 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 14.3. Base unit (operation) kx-tg4771 schematic diagram (base unit (operation)) nc: no components 1 1 2 8 1 2 5 1 2 2 1 2 9 1 2 redial/paus e 1 2 6 1 2 flash 1 2 3 1 2 0 1 2 * 1 2 7 1 2 4 1 2 # 1 2 ans 1 2 stop 1 2 erase/mute 1 2 hold/conf 1 2 sp 1 2 ms...

  • Page 69

    69 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 14.4. Base unit (led) led1 led2 lcd-backlight + - r14 33 r15 33 kx-tg4771 schematic diagram (base unit (led)) nc: no components.

  • Page 70

    70 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 14.5. Portable (main) nc: no components (1) (2) (3) (4) (5) (7) (6) (9) (10) (11) (12) (8) stb_d kin_4 chg_det chg_ctrl chg_cur stb_e stb_c key_le d eep_wp eep_wp eep_scl eep_sda eep_wp stb_d lcd_reset lcd_sid lcd_scl lcd_cs lcd_cd kin_1 kin_2 kin_3 kin...

  • Page 71

    71 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b kx-tga470 schematic diagram (handset (main)) nc: no components (1) (2) (3) (4) (5) (7) (6) (9) (10) (11) (12) (8) rx_rf tx_rf handset rx handset tx sp-phone tx sp-phone rx headset_det c71 nc c28 nc c97 d10p c96 d10p d3 nc d4 nc c12 10u c42 k1000p gnd gn...

  • Page 72

    72 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 14.6. Portable (led) led kx-tga470 schematic diagram (handset (led)).

  • Page 73

    73 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 14.7. Charger unit j1 2 1 g a k tp1 tp2 f1 r1 1 (0.5w) r2 d1 1 (0.5w) schematic diagram (charger unit) !.

  • Page 74

    74 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b memo.

  • Page 75: 15 Printed Circuit Board

    75 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 15 printed circuit board 15.1. Base unit (main) 15.1.1. Component view msg_led led_gnd l850 r806 r807 l662 l663 l664 l665 lcd_blt p101 lcd_vdd keys_e ra501 ra502 r451 c805 sa101 c806 sa102 sa103 pur dc + - gry ylw brn wht brn r651 r652 r653 r654 r657 c8...

  • Page 76

    76 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 15.1.2. Bottom view r601 r605 r606 r612 l474 rstn l476 vcca dcm dcp c601 +3.0v ant-short 2 ringer+ ringer- ra504 c611 f301 ant2 spn spp ra151 vbat_ap u rck c457 c458 tck ugnd q11 1 urx tdi hook_1 hook_2 ant-s-gnd 2 tdo c477 c478 hook_det q906 utx stm/ck...

  • Page 77

    77 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 15.2. Base unit (operation) 15.2.1. Component view pnlb2051z pbf kx-tg4771 circuit board (base unit (operation) (component view)) sw901 a.

  • Page 78

    78 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 15.2.2. Bottom view # 0 3 2 1 6 5 4 9 8 7 c1 c2 c3 c4 c5 c6 c7 c8 locat/int c9 led901 led902 led903 down cn903 stop r10 r11 msg1 r12 msg2 msg3 msg4 flash rpt r7 r8 r9 soft1 redial/pause soft2 soft3 org blu +led- sp skip up a hold/conf ans erase/mute c10...

  • Page 79

    79 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 15.3. Base unit (led) a kx-tg4771 circuit board (base unit (led) (component view)) pnlb1188z pbf led -ig org blu led1 led2 r14 r15.

  • Page 80

    80 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b memo.

  • Page 81

    81 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 15.4. Portable (main) 15.4.1. Component view r3 c5 chg+ chg (+) chg (-) bat+ c28 c6 c15 l10 c83 c32 l7 l8 l1 spm c72 blue orange mic+ mic- spp r80 c87 r45 bat- a chg- c10 c82 cn4 c84 l75 c85 d13 d14 c73 l4 l5 c37 q6 r27 r28 c12 ra1 ra3 ra2 sp-phone chg_...

  • Page 82

    82 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 15.4.2. Bottom view v ol_up cn3_c v ol_d w led7 led1 talk 1 4 7 8 9 0 a # 5 6 2 3 sp flash off led3 led5 led6 mic led21 led20 led4 led2 led9 led9 soft_a soft_b up down left right soft_c pnlb2012z -pa kx-tga470 circuit board (portable (main) (bottom view...

  • Page 83

    83 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 15.5. Portable (led) a kx-tga470 circuit board (portable (led) (component view)) pnlb1964z pbf -ig.

  • Page 84

    84 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 15.6. Charger unit 15.6.1. Component view 15.6.2. Bottom view j1 circuit board (charger unit (component view)) pnlb2081z -ig a circuit board (charger unit (bottom view)) pnlb2081z -ig d1 r1 f1 r2 a pbf.

  • Page 85

    85 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 16 exploded view and replacement parts list 16.1. Cabinet and electrical parts (base unit) 1 24 2 3 9 8 4 5 6 7 12 17 22 10 11 15 28 18 18 29 19 13 14 pcb1 16 pcb2 20 21 23 led board ref.No. Figure 2.6 8 mm a a a a a 25 a a 26 27.

  • Page 86

    86 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 16.2. Cabinet and electrical parts (portable) note: (*1) this cable is fixed by welding. Refer to how to replace the portable lcd (p.48). (*2) the rechargeable ni-mh battery hhr-4dpa is available through sales route of panasonic. (*3) attach the spacer ...

  • Page 87

    87 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 16.3. Cabinet and electrical parts (charger unit) 200 201 200-4 200-3 200-2 200-1 pcb200 b ref.No. Ǿ 2 8 mm b figure.

  • Page 88

    88 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 16.4. Accessories and packing materials 16.4.1. Kx-tg4771b p1 p2 a6 p2 a4 a2 a3 a5 a5 a1.

  • Page 89

    89 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 16.4.2. Kx-tg4772b a101 a104 a105 a106 a104 p101 p102 p102 p102 a102 a103.

  • Page 90

    90 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 16.4.3. Kx-tg4773b a201 p202 p202 p202 p201 a202 a203 a206 a204 a205 a205 a205.

  • Page 91

    91 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 16.4.4. Kx-tga470b note: (*1) this pad is a piece of ref. No. P301 (gift box). P302 (*1) a302 a303 a301 p301.

  • Page 92

    92 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 16.5. Replacement parts list 1. Rtl (retention time limited) note: the “rtl” marking indicates that its retention time is limited. When production is discontinued, this item will continue to be available only for a specific period of time. This period o...

  • Page 93

    93 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b da801 b0ddcd000001 diode(si) da802 b0ddcd000001 diode(si) (coils) l809 g1c7n5ja0044 coil l900 pqlqr2ka20t coil s l901 pqlqr2ka20t coil s l902 pqlqr2ka20t coil s l903 pqlqr2ka20t coil s l905 g1cr10j00010 coil (resistor arrays) ra151 d1h410220001 resistor...

  • Page 94

    94 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 16.5.1.3. Operational p.C. Board parts c503 ecj1vb0g106m 10 s c504 ecue0j105kbq 1 c505 ecj1vb0g106m 10 s c506 ecuv1a105kbv 1 c507 ecuv1a225kbv 2.2 s c508 ecue1h100dcq 10p s c509 ecue1h120jcq 12p s c510 ecuv1a105kbv 1 c511 ecj1vb0g106m 10 s c512 ecue1a10...

  • Page 95

    95 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 16.5.1.4. Led board parts 16.5.2. Portable 16.5.2.1. Cabinet and electrical parts 16.5.2.2. Main p.C. Board parts note: (*1) reconfirm the model no. Written on the portable's name plate when replacing pcb100. Because the model no. Of the optional portab...

  • Page 96

    96 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 16.5.2.3. Led board parts 16.5.3. Charger unit 16.5.3.1. Cabinet and electrical parts 16.5.3.2. Main p.C. Board parts 16.5.4. Accessories and packing materials note: (*1) you can download and refer to the operating instructions (instruction book) on tsn...

  • Page 97

    97 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 16.5.4.2. Kx-tg4772b 16.5.4.3. Kx-tg4773b 16.5.4.4. Kx-tga470b 16.5.5. Screws 16.5.6. Fixtures and tools note: (*1) see equipment required (p.49), and the setting method of jig (p.49) (*2) when replacing the portable lcd, see how to replace the portable...

  • Page 98: Telephone Equipment

    © panasonic system networks co., ltd. 2013 unauthorized copying and distribution is a violation of law. Order no. Km41309647se f13 telephone equipment model no. Kx-tg4771b kx-tg4772b kx-tg4773b kx-tga470b digital corded/cordless answering system b: black version (for u.S.A.) table of contents page 1...

  • Page 99: 1 Replacement Parts List

    2 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 1 replacement parts list 1.1. Reference chart 1.2. Original and new parts comparison lists nm kxtg4771b kxtg4772b kxtg4773b kxtga470b reason for change *the following items (1-8) indicate the reason for change. See the “notes” column for each part in ori...

  • Page 100: Telephone Equipment

    © panasonic system networks co., ltd. 2013 unauthorized copying and distribution is a violation of law. Order no. Km41311802se f13 telephone equipment model no. Kx-tg4771b kx-tg4772b kx-tg4773b kx-tga470b digital corded/cordless answering system b: black version (for u.S.A.) table of contents page 1...

  • Page 101: 1 Replacement Parts List

    2 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 1 replacement parts list 1.1. Reference chart 1.2. Original and new parts comparison lists nm kxtg4771b kxtg4772b kxtg4773b kxtga470b reason for change *the following items (1-8) indicate the reason for change. See the “notes” column for each part in ori...

  • Page 102: Telephone Equipment

    © panasonic system networks co., ltd. 2014 unauthorized copying and distribution is a violation of law. Order no. Km41401273se f13 telephone equipment model no. Kx-tg4771b kx-tg4772b kx-tg4773b kx-tga470b digital corded/cordless answering system b: black version (for u.S.A.) table of contents page 1...

  • Page 103: 1 Replacement Parts List

    2 kx-tg4771b/kx-tg4772b/kx-tg4773b/kx-tga470b 1 replacement parts list 1.1. Reference chart 1.2. Original and new parts comparison lists oy kxtg4771b kxtg4772b kxtg4773b kxtga470b reason for change *the following items (1-8) indicate the reason for change. See the “notes” column for each part in ori...