Panasonic KX-TG155SK Service Manual
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Panasonic KX-TG155SK Service Manual

Link-to-cell cellular convergence solution
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Caller ID Compatible
KX-TGA660M
(Handset)
(Charger Unit)
Configuration for each model
Model No
Base Unit
Handset
KX-TG155
1 (TG7641) 5 (TGA660)
KX-TGA660*
1 (TGA660)
*KX-TGA660 is also an optional accessory, which contains a
handset and a charger.
Information for optional accessories
You can expand your phone system by registering optional
handsets (KX-TGA410) to a single base unit.
Optional handsets and the supplied handset are different model
so that some functions may not be available.
Refer to each Operating Instruction for details.
KX-TG7641M
(Base Unit)
Charger Unit Expandable
4
Up to 6
1
Telephone Equipment
KX-TG155SK
Model No.
KX-TGA660M
Link-to-Cell Cellular Convergence
Solution
M: Metallic Grey Version
(for U.S.A.)
© Panasonic System Networks Co., Ltd. 2012
Unauthorized copying and distribution is a violation
of law.
ORDER NO. KM41201535CE
F13

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Summary of Contents for Panasonic KX-TG155SK

  • Page 1 Optional handsets and the supplied handset are different model so that some functions may not be available. Refer to each Operating Instruction for details. © Panasonic System Networks Co., Ltd. 2012 Unauthorized copying and distribution is a violation of law.
  • Page 2 KX-TG155SK/KX-TGA660M 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 a product. Products powered by electricity should be serviced or repaired only by experienced professional technicians.

  • Page 3: Table Of Contents

    KX-TG155SK/KX-TGA660M TABLE OF CONTENTS PAGE PAGE 1 Safety Precautions----------------------------------------------- 4 14.8. Schematic Diagram (Charger Unit) ----------------- 83 1.1. For Service Technicians --------------------------------- 4 15 Printed Circuit Board ------------------------------------------ 85 15.1. Circuit Board (Base Unit_Main) ---------------------- 85 2 Warning -------------------------------------------------------------- 4 15.2.

  • Page 4: Safety Precautions

    KX-TG155SK/KX-TGA660M 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.

  • Page 5: Discarding Of P. C. Board

    KX-TG155SK/KX-TGA660M 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 the manufacturer's specific instructions for the melting points of their products and any precautions for using their product with other materials.

  • Page 6: Specifications

    KX-TG155SK/KX-TGA660M 3 Specifications ■ Standard: ■ Bit rate: DECT 6.0 (Digital Enhanced Cordless 1.152Mbit/s (DECT 6.0) Telecommunications 6.0) 1.0 Mbit/s (Bluetooth) Bluetooth wireless technology 2.0 ■ Modulation: ■ Number of channels: GFSK (Gaussian Frequency Shift Keying) 60 Duplex Channels (DECT 6.0) ■...

  • Page 7: Technical Descriptions

    KX-TG155SK/KX-TGA660M 4 Technical Descriptions 4.1. Circuit Configuration of TG764x Series Phones TG764x consists of DECT cordless telephone and Bluetooth Module. Both voices of transmission and reception are transferred by PCM. BBIC on DECT side controls the cordless telephone system, which makes control data communication with BT_IC on BT Module in serial data.

  • Page 8: Dect Description

    KX-TG155SK/KX-TGA660M 4.2. 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.66). 4.2.1. TDD Frame Format 5 ms 5 ms Up Link ( Handset - > Base Unit ) Down Link ( Base Unit - >...
  • Page 9 KX-TG155SK/KX-TGA660M 4.2.3. 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 fed to selected antenna.

  • Page 10: Block Diagram (Base Unit_Main)

    KX-TG155SK/KX-TGA660M 4.3. Block Diagram (Base Unit_Main)

  • Page 11: Tel Interface Circuit

    KX-TG155SK/KX-TGA660M 4.4. Tel Interface Circuit...

  • Page 12: Block Diagram (Base Unit_Rf Part)

    KX-TG155SK/KX-TGA660M 4.5. Block Diagram (Base Unit_RF Part)

  • Page 13: Circuit Operation (Base Unit)

    KX-TG155SK/KX-TGA660M 4.6. 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 telephone answering machine. The BBIC system is fully controlled by a host processor. The host processor provides activation and control of all that functions as follows.
  • Page 14 KX-TG155SK/KX-TGA660M 4.6.6. 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: VDD4 +5.5V +3.0V...
  • Page 15 KX-TG155SK/KX-TGA660M 4.6.6.1. Charge Circuit The voltage from the AC adaptor is supplied to the charge circuits. +5.5V F301 R373 CHARGE+ C351 CHARGE-...
  • Page 16 KX-TG155SK/KX-TGA660M 4.6.7. 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 open to cut the DC loop current and decrease the ring load. When ring voltage appears at the Tip (T) and Ring (R) leads (When the telephone rings), the AC ring voltage is transferred as follows: L1T→L101→C105→R105→R110→R111→R112→BBIC pin18(RINGING)
  • Page 17 KX-TG155SK/KX-TGA660M 4.6.8. 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 telephone connected in parallel is in use or not. This circuit determines whether the telephone connected in parallel is on hook or off hook by detecting changes in the T/R voltage.
  • Page 18 KX-TG155SK/KX-TGA660M 4.6.9. 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 ID service. For this reason, the operation of this circuit assumes that a caller ID service contract has been entered for the circuit being used.
  • Page 19 KX-TG155SK/KX-TGA660M 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 information takes place almost immediately after the customer is alerted to the new call so he/she can use this information to decide whether to take the new call.

  • Page 20: Block Diagram (Handset)

    KX-TG155SK/KX-TGA660M 4.7. Block Diagram (Handset) VBAT ANT1 EEPROM 13.824 MHz VBAT CHG_DET RF part CHG_CTL RXON RSTN RESET TXON CHARGE Battery_ON VBAT BATTERY BBIC Receiver HSSPOUTP Headset Jack LOUT HSMIP 4.0V CN431 VBAT CHARGE HEADSET_DET (KEY) CP_OFF PUMP (BELL) KEY_LED...

  • Page 21: Block Diagram (Handset_Rf Part)

    KX-TG155SK/KX-TGA660M 4.8. Block Diagram (Handset_RF Part) TXON DA801 RXON KX-TGA660 BLOCK DIAGRAM (Handset_RF Part)

  • Page 22: Circuit Operation (Handset)

    KX-TG155SK/KX-TGA660M 4.9. Circuit Operation (Handset) 4.9.1. 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 (ex: Key, Detector Circuit, Charge, EEPROM, LCD) •...
  • Page 23 KX-TG155SK/KX-TGA660M 4.9.3. Charge Circuit Circuit Operation: When charging the handset on the Base Unit, the charge current is as follows; DC+(6.5 V) → F301 → R371 → R372 →CHARGE+(Base) → CHARGE+(Handset) → Q4 → D7→ F1 → BATTERY+... Battery... BATTERY- → R45 → GND → CHARGE-(Handset)→ CHARGE-(Base) → GND → DC-(GND) In this way, the BBIC on Handset detects the fact that the battery is charged.

  • Page 24: Behavior Of Electric Power Failure

    KX-TG155SK/KX-TGA660M 4.10. Behavior of Electric Power Failure In case that the power from AC adaptor is lost and lose radio waves, BBIC (IC1) turns IC6 ON since handset presumes that base unit's power is failed. Base unit detects that power voltage of AC adaptor +5.5V is OFF at IC351, then turns Q351 ON.

  • Page 25: Signal Route

    KX-TG155SK/KX-TGA660M 4.12. Signal Route ROUTE SIGNAL ROUTE HANDSET TX HANDSET MIC - R73/74 - C11/13 - RA4 - IC1(22/23) - <HANDSET_RF_TX_ROUTE> - ANT. --- ANT. - <BASE_UNIT_RF_RX_ROUTE> - IC501(2/3 - 27) - C184 - Q161 -Q141 - D101 - L101/[L102-P101] - T/R (TEL LINE)
  • Page 26 KX-TG155SK/KX-TGA660M RF part signal route SIGNAL ROUTE ROUTE HANDSET MIC - R73/74 - C11/13 - RA4 - IC1(22/23) INTERCOM - <HANDSET_RF_TX_ROUTE> - ANT. --- HANDSET TO BASE UNIT ANT - <BASE_UNIT_RF_RX_ROUTE> - IC501(2/3 - 41/43) - SPEAKER INTERCOM MIC - C457/C458 - RA452 - IC501(37/38 - 94/95) - <BASE_UNIT_RF_TX_ROUTE> - ANT BASE UNIT --- ANT.

  • Page 27: Location Of Controls And Components

    KX-TG155SK/KX-TGA660M 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 download and refer to the Operating Instructions (Instruction book) on TSN Server.

  • Page 28: Test Mode

    KX-TG155SK/KX-TGA660M 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. Soft keys {OFF} {OFF} Naviga tor key/ (Volume) key {FLASH} {FLASH}...
  • Page 29 KX-TG155SK/KX-TGA660M Set Addr.: 7). Press , a long confirmation beep New Data will be heard. CLEAR 8). Press {OFF} to return to standby mode. Set Addr.: After that, turn the base unit power off and then power on. _ _ _ _ BACK or {>} at "...
  • Page 30 KX-TG155SK/KX-TGA660M 8.1.2. Handset Important: Make sure the address on LCD is correct when entering new data. Otherwise, you may ruin the unit. Soft keys {OFF} {OFF} Naviga tor key/ (Volume) key {FLASH} {FLASH} {CALL WAIT} {CALL WAIT} Dial keypad Dial keypad...
  • Page 31 KX-TG155SK/KX-TGA660M Frequently Used Items (Handset) ex.) Items Address Default Data New Data Possible Adjusted Possible Adjusted Remarks Value MAX (hex) Value MIN (hex) Battery Low 00 12/00 13 00 / 00 (*2) Frequency 00 07 / 00 08 00 / 01...

  • Page 32: Service Mode

    KX-TG155SK/KX-TGA660M 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 33: Troubleshooting Guide

    KX-TG155SK/KX-TGA660M 10 Troubleshooting Guide 10.1. Troubleshooting Flowchart FLOW CHART Not working Power ON Base Unit Check Power Not record (*1) Record Check Record Not playback Playback Pre-Message Check Playback Link No link No charge Battery Charge Check Battery Charge Check Link...
  • Page 34 KX-TG155SK/KX-TGA660M 10.1.1. Check Power 10.1.1.1. Base Unit Is the AC Adaptor inserted into AC outlet? (*1) AC Adaptor. Is output voltage of AC adaptor 5.5 V? Check Check Power Supply Circuit. Check VDD1(1.8V) :Test point (VDD1) RSTN: Reset = "High"? Check Reset Circuit.
  • Page 35 KX-TG155SK/KX-TGA660M 10.1.2. Check Record 10.1.2.1. Base Unit Not record Incoming Message Check Telephone Line Interface Check Bell signal. [Bell]. Check Telephone Line Interface Does the unit catch line? [OFF HOOK]. Check Line In: Pin 25 of BBIC. Check ICM Recording in Signal Route.
  • Page 36 KX-TG155SK/KX-TGA660M <How to change the Auto Disconnect activation time and VOX level> 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 Disconnect activation through the procedures below.
  • Page 37 KX-TG155SK/KX-TGA660M 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".
  • Page 38 KX-TG155SK/KX-TGA660M 10.1.3. Check Playback 10.1.3.1. Base Unit Check VDD1(1.8V) :Test point (VDD1) Check Power Supply Circuit. Check output of BBIC (Pin 41,43). Check BBIC and Flash Memory. Check Speaker and its surroundings. Cross Reference: Note: Power Supply Circuit/Reset Circuit (P.14) Flash Memory is IC601.
  • Page 39 KX-TG155SK/KX-TGA660M 10.1.5. Check Link 10.1.5.1. Base Unit Does Base Unit make link with normal working Base Unit is OK. Check Handset. Handset? Is the voltage of VDD3 about 3.0V? Check around Power Supply Circuit. Is the voltage of VDD1 about 1.8V? Does the RF clock (CLK) oscillate at 10.368 MHz in...
  • Page 40 KX-TG155SK/KX-TGA660M 10.1.5.2. Handset Does Handset make link with Base Unit? Handset is OK. Check Base Unit. (Correct working unit) Is the voltage of TP VBAT about 2.2~2.8 V? Check the batteries. Check around Power Supply Circuit/Reset Circuit. Is the voltage of TP VDDC about 1.8 V? Is the voltage of TP 3.0 V about 3.0 V?
  • Page 41 KX-TG155SK/KX-TGA660M 10.1.6. Check the RF part 10.1.6.1. Finding out the Defective part 1. Prepare Regular HS(*1) and Regular 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.
  • Page 42 KX-TG155SK/KX-TGA660M 10.1.6.2. RF Check Flowchart Each item (1 ~ 5) of RF Check Flowchart corresponds to Check Table for RF part (P.43). Please refer to the each item. Start Link Control Check BBIC interface parts. confirmation signal (RF Block <->BBIC on BU/HS P.C.B)
  • Page 43 KX-TG155SK/KX-TGA660M 10.1.6.3. Check Table for RF part Item BU (Base Unit) Check HS (Handset) Check Link Confirmation Normal 1. Register Regular HS to BU (to be 1. Register HS (to be checked) to Regular checked). HS, BU Mode [Normal Mode] 2.
  • Page 44 KX-TG155SK/KX-TGA660M 10.1.6.4. TEST RANGE Check Circuit block which range is defective can be found by the following check. Item BU (Base Unit) Check HS (Handset) Check Range Confirmation TX TEST 1. Register Regular HS to BU (to be checked). 1. Register HS (to be checked) to Regular BU.
  • Page 45 KX-TG155SK/KX-TGA660M 10.1.7. Registering a Handset to the Base Unit The supplied handset and base unit arepre-registered. If for some reason the handset is not registered to the baseunit, re-register the handset. 1 Handset: {MENU} i # 1 3 0 2 Base unit: Press and hold MLOCATORN forabout 5 seconds until theregistration tone sounds.
  • Page 46 KX-TG155SK/KX-TGA660M 10.1.9. Check Handset Transmission Check MIC of handset. Check handset Tx in Signal Route. Cross Reference: Signal Route (P.25) 10.1.10. Check Handset Reception Check speaker of handset. Check handset Rx in Signal Route. Cross Reference: Signal Route (P.25) Note: When checking the RF part, Refer to Check the RF part (P.41).
  • Page 47 KX-TG155SK/KX-TGA660M 10.1.12. Check BT Communication Plug in the AC power source and wait 10 seconds. Operate to enter the menu of "Bluetooth" by using a handset Press [MENU] Bluetooth [SELECT] Is it possible to enter the menu of "Bluetooth"? Check the circuit of around RF parts of BT...
  • Page 48 KX-TG155SK/KX-TGA660M Case1: OK AC power on PIO01 3.6sec 0.06sec 2.8sec 1.4sec Case2: NG1(fail to reset BT_IC) AC power on If BT_IC does not work, 1st and 2nd signals does not appear. Check the circuit of around PIO01 POWER and RESET parts of BT Module.

  • Page 49: Disassembly And Assembly Instructions

    KX-TG155SK/KX-TGA660M 11 Disassembly and Assembly Instructions 11.1. Disassembly Instructions 11.1.1. Base Unit Remove the 5 screws to remove the cabinet cover. Remove the solders. Cabinet cover Solders Remove the screw and pararell wire to remove the main P.C. board.
  • Page 50 KX-TG155SK/KX-TGA660M Remove the screw to remove the Jack holder. Remove the 4 screws and pararell wire to remove the operational P.C.B board.
  • Page 51 KX-TG155SK/KX-TGA660M 11.1.2. Handset 2 screws Remove the 2 screws. Insert a plastic card. (Ex. Used SIM card etc.) Cabinet body between the cabinet body and the cabinet cover, then pull it along the gap to open the cabinet. Cabinet cover Likewise, open the other side of the cabinet.
  • Page 52 KX-TG155SK/KX-TGA660M 11.1.3. Charger Unit 2 charge terminals...

  • Page 53: How To Attach The Antenna

    KX-TG155SK/KX-TGA660M 11.2. How to Attach the Antenna Locate as the following figure...

  • Page 54: How To Replace The Base Unit Lcd

    KX-TG155SK/KX-TGA660M 11.3. How to Replace the Base unit LCD Fit the heatseal of a new LCD. Vertical Interval Tolerance 0.2mm Horizontal Interval Tolerance 0.2mm If interval tolerance between center lines is less than 0.2 mm, it is o.k. New LCD Operational P.C.B.
  • Page 55 KX-TG155SK/KX-TGA660M Attach the LCD and fix by hook A (two points). Solder the wires.

  • Page 56: How To Replace The Handset Lcd

    KX-TG155SK/KX-TGA660M 11.4. How to Replace the Handset LCD Note: The illustrations are simplified in this page. They may differ from the actual product. P. C. board Vertical Interval Tolerance Peel off the FFC (Flexible Flat Cable) from 0.2 mm the LCD, in the direction of the arrow. Take care to ensure that the foil on the P.C.

  • Page 57: Measurements And Adjustments

    KX-TG155SK/KX-TGA660M 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.33) 12.1. Equipment Required • Digital multi-meter (DMM): it must be able to measure voltage and current.
  • Page 58 KX-TG155SK/KX-TGA660M 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. URX (red) To Serial Port...
  • Page 59 KX-TG155SK/KX-TGA660M 12.2.3. How to install Batch file into P.C. Insert the Batch file CD-ROM into CD-ROM drive and copy PNZZTG**** folder to your PC (example: D drive). <Example for Windows> On your computer, click [Start], select Programs Open an MS-DOS mode window.
  • Page 60 KX-TG155SK/KX-TGA660M 12.2.4. Commands See the table below for frequently used commands. Command name Function Example XBT 0 Base unit only. Type "sendchar XBT 0". For excluding failure of command response. Please send this command at first before other command is executed.

  • Page 61: Adjustment Standard (Base Unit)

    KX-TG155SK/KX-TGA660M 12.3. Adjustment Standard (Base Unit) When connecting the simulator equipment for checking, please refer to below. 12.3.1. Bottom View UART Oscilloscope ANT1_TP C522 R733 R734 C721 R731 C521 Q732 Q731 Q733 ANT2_TP R503 Spectrum Analyzer +5.5V ANT_2 TP_ANT_BT ANT_BT...

  • Page 62: Adjustment Standard (Charger Unit)

    KX-TG155SK/KX-TGA660M 12.4. Adjustment Standard (Charger Unit) When connecting the simulator equipment for checking, please refer to below. 12.4.1. Bottom View Digital Volt Meter /2 W 3.0A DC POWER DC 5.5 V...

  • Page 63: Adjustment Standard (Handset)

    KX-TG155SK/KX-TGA660M 12.5. Adjustment Standard (Handset) When connecting the simulator equipment for checking, please refer to below. 12.5.1. Component View PNLB1885 KX-TGA660 RECEIVER C505 C896 C138 C859 C814 C812 C813 C822 C820 C810 R807 C805 C806 C188 CHG_CTRL VBAT_MON C65 C64...

  • Page 64: Things To Do After Replacing Ic Or X'tal

    KX-TG155SK/KX-TGA660M 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.
  • Page 65 KX-TG155SK/KX-TGA660M 12.6.1.2. Handset First, operate the PC setting according to The Setting Method of JIG (P.57). Then download the appropriate data according to the following procedures. Items How to download/Required adjustment EEPROM (IC3) Adjusted parameter data is stored in memory.

  • Page 66: Frequency Table

    KX-TG155SK/KX-TGA660M 12.7. Frequency Table Ch. (hex) TX/RX Frequency (MHz) Channel 0 1928.448 Channel 1 1926.720 Channel 2 1924.992 Channel 3 1923.264 Channel 4 1921.536...

  • Page 67: Bluetooth Frequency Table

    KX-TG155SK/KX-TGA660M 12.8. Bluetooth Frequency Table Frequency (MHz) Frequency (MHz) Frequency (MHz) 2402 2435 2468 2403 2436 2469 2404 2437 2470 2405 2438 2471 2406 2439 2472 2407 2440 2473 2408 2441 2474 2409 2442 2475 2410 2443 2476 2411 2444...

  • Page 68: Miscellaneous

    KX-TG155SK/KX-TGA660M 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 ± 10 °C) Note: We recommend a 30 to 40 Watt soldering iron.
  • Page 69 KX-TG155SK/KX-TGA660M 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. Soldering Iron Land Solder P.C.Board 2. Place the solder a little on the land where IC pins are to be attached, then place the IC.

  • Page 70: How To Replace The Flat Package

    KX-TG155SK/KX-TGA660M 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 than 100 pins.
  • Page 71 KX-TG155SK/KX-TGA660M 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.

  • Page 72: Terminal Guide Of The Ics, Transistors And Diodes

    KX-TG155SK/KX-TGA660M 13.3. Terminal Guide of the ICs, Transistors and Diodes 13.3.1. Base Unit (Reverse View) PNWI1TG7641H C0CBCCC00103 PNWI2TG7621H C0EBE0000124 B1GFCFEN0011 C0CBAYG00016 C1CB00003542 PNWI3TG7621H B1ABDM000001, B1ADGE000012 B1ADNB000003, B1ABDF000017 B1GBCFYY0010, B1GBCFYY0020 C0JBAQ000247 B1ACGP000008 DSC7003S0L 2SA1576S, PQVTDTC114TU Cathode Cathode Cathode Anode Anode Anode...

  • Page 73: Schematic Diagram

    KX-TG155SK/KX-TGA660M 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. Important Safety Notice: Components identified by mark have special characteristics important for safety.

  • Page 74: Schematic Diagram (Base Unit_Main)

    KX-TG155SK/KX-TGA660M 14.2. Schematic Diagram (Base Unit_Main) +3.0V C751 0.1u IC751 SP_LED 1 QB BT_HS_LED(R) 2 QC BT_HS_LED(G) SPI2_DO 3 QD CELL1_LED(R) 4 QE *RCLR CELL1_LED(G) IO_LE 5 QF CELL2_LED(R) SPI2_CLK 6 QG Q654 CELL2_LED(G) IO_CLR 7 QH *SCLR BT_HS_LED(R) 8 GND...
  • Page 75 KX-TG155SK/KX-TGA660M Q141 REFERENCE R160 1XX : TEL LINE 3XX : POWER, CHARGE 4XX : MIC, SP Q161 5XX : BBIC R141 6XX : FLASH, EEPROM, KEY, LCD 7XX : FOR DK/BT 100k 8XX : RF C165NC C163 NC C173 R164 R161 0.1u...

  • Page 76: Schematic Diagram (Base Unit_Rf)

    KX-TG155SK/KX-TGA660M 14.3. Schematic Diagram (Base Unit_RF) ANT_1 ANT_2 ANT1_TP ANT2_TP C851 C853 W 0.15mm L 22+/-4mm W 0.15mm 1st or 4th layer L 22+/-4mm 1st or 4th layer DA802 W 0.15mm W 0.15mm L 20+/-2mm L 22+/-4mm 3rd layer 1st or 4th layer...

  • Page 77: Schematic Diagram (Base Unit_Operation)

    KX-TG155SK/KX-TGA660M 14.4. Schematic Diagram (Base Unit_Operation) CN901 LCD_Light OPT_PWR /CS1 /RES *LED911 CELL1_LED(R) SCL (D6) *LED916 GREEN BT_HS_LED(G) SI (D7) *LED915 BT_HS_LED(R) LED902 VDDA MEG_LED LED901 ANS_LED C903 1u 16V LCD_GND 13pin:TG6641 16pin:TG7641 LCD_RST R907 100 LCD_CS LCD_CD CELL1_2 CELL2_2...

  • Page 78: Schematic Diagram (Base Unit_Led)

    KX-TG155SK/KX-TGA660M 14.5. Schematic Diagram (Base Unit_LED) WLED NC: No Components KX-TG155 SCHEMATIC DIAGRAM (Base Unit_LED)
  • Page 79 KX-TG155SK/KX-TGA660M Memo...

  • Page 80: Schematic Diagram (Handset_Main)

    KX-TG155SK/KX-TGA660M 14.6. Schematic Diagram (Handset_Main) Charge Current VBAT VBAT BATT+ 2.5A CHG_CUR BATT- To Battery When on Charge 3.0V C172 0.1u 3.3k E_WP EEP_WP E_SCL EEP_SCL E_SDA EEP_SDA Battery_ON * BBIC initialization stand-by status * When "SFR" command is executed, 13.824MHz...
  • Page 81 KX-TG155SK/KX-TGA660M R807 RXON RF BLOCK W 0.15mm L 20mm W 0.15mm/L 7mm 3rd layer W 0.5mm /L 5mm C826 1st layer ANT-Short-GND RX_RF ANT-Short C895 1.3p G ND C812 L809 8.2n DA801 W 0.15mm TX_RF L 20mm 3rd layer W 0.2mm R806 L 10.0mm...

  • Page 82: Schematic Diagram (Handset_Led)

    KX-TG155SK/KX-TGA660M 14.7. Schematic Diagram (Handset_LED) KX-TGA660 SCHEMATIC DIAGRAM (Handset_LED)

  • Page 83: Schematic Diagram (Charger Unit)

    KX-TG155SK/KX-TGA660M 14.8. Schematic Diagram (Charger Unit) 6.8 (2W) SCHEMATIC DIAGRAM (Charger Unit)
  • Page 84 KX-TG155SK/KX-TGA660M Memo...

  • Page 85: Printed Circuit Board

    KX-TG155SK/KX-TGA660M 15 Printed Circuit Board 15.1. Circuit Board (Base Unit_Main) 15.1.1. Component View IC302 C306 ANT_2 ANT2 ANT1 IC721 R781 C853 C782 BT_CTS BT_URX ANT_BT TP_ANT_C3 C844 DA802 SA103 C858 R751 C804 C751 R891 R752 SA101 Q651 C856 L102 C802...
  • Page 86 KX-TG155SK/KX-TGA660M 15.1.2. Bottom View For JIG PIO_01 ANT1_TP C522 R733 R734 C721 R731 C521 Q732 Q731 Q733 ANT2_TP R503 +5.5V ANT2 ANT_2 TP_ANT_BT ANT_BT C301 F301 R721 3.0A ANT_BT L-1T R659 Q652 Q654 IC611 L661 C663 C115 C662 JTAG R611...

  • Page 87: Circuit Board (Base Unit_Operation)

    KX-TG155SK/KX-TGA660M 15.2. Circuit Board (Base Unit_Operation) BL+ BL- CELL1_1 CELL1_2 R908 R907 BT_HS C903 C902 CELL2_1 CELL2_2 ERASE MSG1 MSG2 SKIP MSG3 MSG4 STOP LOCAT/INT DOWN FLASH HOLD MEMO MUTE CONF MIC+ MIC- PHONEBOOK KX-TG155 CIRCUIT BOARD (Base Unit_Operation (Component View))

  • Page 88: Circuit Board (Base Unit_Led)

    KX-TG155SK/KX-TGA660M 15.3. Circuit Board (Base Unit_LED) PNLB1921Z KX-TG155 CIRCUIT BOARD (Base Unit_LED (Component View))

  • Page 89: Circuit Board (Handset_Main)

    KX-TG155SK/KX-TGA660M 15.4. Circuit Board (Handset_Main) 15.4.1. Component View PNLB1885 ANT-TP ANT-GND KX-TGA660 RECEIVER C505 C896 C138 C859 C814 C812 C813 C822 C820 C810 R807 C805 C806 C188 CKM/STM (CLK:13.824MHz) CHG_CTRL VBAT_MON C65 C64 C96 C86 VBG/CHG_MON 3.0V (output) C172 4.0V...
  • Page 90 KX-TG155SK/KX-TGA660M 15.4.2. Bottom View LED12 CN3_C SOFT1 MENU SOFT2 TALK LED2 LED5 LEFT RIGHT FLASH DOWN KX-TGA660 CIRCUIT BOARD (Handset_Main (Bottom View))

  • Page 91: Circuit Board (Handset_Led)

    KX-TG155SK/KX-TGA660M 15.5. Circuit Board (Handset_LED) PNLB1964Z KX-TGA660 CIRCUIT BOARD (Handset_LED (Component View))

  • Page 92: Circuit Board (Charger Unit)

    KX-TG155SK/KX-TGA660M 15.6. Circuit Board (Charger Unit) 15.6.1. Component View CIRCUIT BOARD (Charger Unit (Component View)) 15.6.2. Bottom View 3.0A CIRCUIT BOARD (Charger Unit (Bottom View))

  • Page 93: Exploded View And Replacement Parts List

    KX-TG155SK/KX-TGA660M 16 Exploded View and Replacement Parts List 16.1. Cabinet and Electrical Parts (Base Unit) (*1) PCB3 PCB1 PCB2 MIC1 Ref.No. Figure 2.6 x 8mm Note: (*1) This cable is fixed by welding. Refer to How to Replace the Base unit LCD (P.54).

  • Page 94: Cabinet And Electrical Parts (Handset)

    (*1) This cable is fixed by welding. Refer to How to Replace the Handset LCD (P.56). (*2) The rechargeable Ni-MH battery HHR-4DPA is available through sales route of Panasonic. (*3) Attach the SPACER (No. 121) to the exact location described above.

  • Page 95: Cabinet And Electrical Parts (Charger Unit)

    KX-TG155SK/KX-TGA660M 16.3. Cabinet and Electrical Parts (Charger Unit) 200-1 PCB200 200-2 200-3 200-4 Ref.No. Figure 2×8 mm φ...

  • Page 96: Accessories

    KX-TG155SK/KX-TGA660M 16.4. Accessories A3, A4...

  • Page 97: Replacement Parts List

    KX-TG155SK/KX-TGA660M 16.5. Replacement Parts List Safety Ref. Part No. Part Name & Description Remarks 1. RTL (Retention Time Limited) PNBC1347Z1 BUTTON, ANSWER ON PS-HB Note: PNBC1349Z1 BUTTON, STOP PS-HB PNBC1350Z1 BUTTON, LOCATOR PS-HB The “RTL” marking indicates that its Retention Time is...
  • Page 98 KX-TG155SK/KX-TGA660M Safety Ref. Part No. Part Name & Description Remarks Safety Ref. Part No. Part Name & Description Remarks (COILS) R365 D0GA473JA021 47k L101 PQLQXF330K COIL R366 D0GA103JA021 10k L102 PQLQXF330K COIL R371 ERJ12YJ1R0 L351 PQLQR2KA113 COIL R372 ERJ12YJ1R0 L381...
  • Page 99 KX-TG155SK/KX-TGA660M Safety Ref. Part No. Part Name & Description Remarks Safety Ref. Part No. Part Name & Description Remarks C125 ECUE1H100DCQ 10p C820 F1G1HR70A480 0.7p C132 ECUV1H103KBV 0.01 C822 ECUE1H100DCQ 10p C142 ECUV1H103KBV 0.01 C823 ECUE1H101JCQ 100p C152 ECUE1C103KBQ 0.01...
  • Page 100 KX-TG155SK/KX-TGA660M Safety Ref. Part No. Part Name & Description Remarks Safety Ref. Part No. Part Name & Description Remarks L0AD01A00026 RECEIVER (IC FILTERS) PNYE1040Z SPACER, CUSHION LCD J0JDC0000045 IC FILTER PNBC1354Z1 BUTTON, NAVIGATOR KEY ABS-HB J0JCC0000276 IC FILTER PNJK1104Y KEYBOARD SWITCH...
  • Page 101 KX-TG155SK/KX-TGA660M 16.5.2.3. LED Board Parts Safety Ref. Part No. Part Name & Description Remarks ECUE0J105KBQ 1 ECUE1A104KBQ 0.1 Safety Ref. Part No. Part Name & Description Remarks ECUE1H390JCQ 39p ECUE1A104KBQ 0.1 PCB101 PNWP2TGA660R LED P.C.BOARD ASS'Y (RTL) ECJ1VB0G106M 10 (LED) ECUE1A104KBQ 0.1...
  • Page 102 KX-TG155SK/KX-TGA660M 16.5.6. Fixtures and Tools Note: (*1) See Equipment Required (P.57), and The Setting Method of JIG (P.57) (*2) When replacing the Handset LCD, See How to Replace the Handset LCD (P.56) Safety Ref. Part No. Part Name & Description Remarks...
  • Page 103 KX-TGA660M Link-to-Cell Cellular Convergence Solution M: Metallic Grey Version (for U.S.A.) Please file and use this supplement manual together with the service manual for Model No.KX-TG155SK/ KX-TGA660M, Order No. KM41201535CE. TABLE OF CONTENTS PAGE 1 REPLACEMENT PARTS LIST--------------------------------- 2 1.1. REFERENCE CHART------------------------------------ 2 1.2.
  • Page 104 KX-TG155SK/KX-TGA660M 1 REPLACEMENT PARTS LIST 1.1. REFERENCE CHART 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 Remarks: *c: To share the parts with other models.
  • Page 105 KX-TGA660M Link-to-Cell Cellular Convergence Solution M: Metallic Grey Version (for U.S.A.) Please file and use this supplement manual together with the service manual for Model No.KX-TG155SK/ KX-TGA660M, Order No. KM41201535CE. TABLE OF CONTENTS PAGE 1 REPLACEMENT PARTS LIST--------------------------------- 2 1.1. REFERENCE CHART------------------------------------ 2 1.2.
  • Page 106 KX-TG155SK/KX-TGA660M 1 REPLACEMENT PARTS LIST 1.1. REFERENCE CHART 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 Remarks: *j : To meet the standards.

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