Panasonic KX-TG6671B Service Manual
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Panasonic KX-TG6671B Service Manual

Digital corded/cordless answering system
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Caller ID Compatible
KX-TGA660B
(Portable)
(Charger Unit)
Configuration for each model
Model No
Base Unit
Portable
KX-TG6671 1 (TG6671) 1 (TGA660)
KX-TG6672 1 (TG6671) 2 (TGA660)
KX-TGA660*
1 (TGA660)
*KX-TGA660 is also an optional accessory, which contains a
portable and a charger.
Information for optional accessories
You can expand your phone system by registering optional
portables (KX-TGA410 / KX-TGA659) to a single base unit.
Optional portables and the supplied portable are different model
so that some functions may not be available.
Refer to each Operating Instruction for details.
KX-TG6671B
(Base Unit)
Charger Unit Expandable
1
Up to 6
2
Up to 6
1
Telephone Equipment
KX-TG6671B
Model No.
KX-TG6672B
KX-TGA660B
Digital Corded/Cordless Answering
System
B: Black Version
(for U.S.A.)
© Panasonic System Networks Co., Ltd. 2011
Unauthorized copying and distribution is a violation
of law.
ORDER NO. KM41108473CE
F13

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Summary of Contents for Panasonic KX-TG6671B

  • Page 1 Optional portables and the supplied portable are different model so that some functions may not be available. Refer to each Operating Instruction for details. © Panasonic System Networks Co., Ltd. 2011 Unauthorized copying and distribution is a violation of law.
  • Page 2 KX-TG6671B/KX-TG6672B/KX-TGA660B 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-TG6671B/KX-TG6672B/KX-TGA660B TABLE OF CONTENTS PAGE PAGE 1 Safety Precautions----------------------------------------------- 4 15.4. Circuit Board (Base Unit_LED) ----------------------- 86 1.1. For Service Technicians --------------------------------- 4 15.5. Circuit Board (Portable_Main) ------------------------ 87 2 Warning -------------------------------------------------------------- 4 15.6. Circuit Board (Portable_LED) ------------------------- 89 2.1. Battery Caution--------------------------------------------- 4 15.7.

  • Page 4: Safety Precautions

    KX-TG6671B/KX-TG6672B/KX-TGA660B 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-TG6671B/KX-TG6672B/KX-TGA660B 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-TG6671B/KX-TG6672B/KX-TGA660B 3 Specifications ■ ■ Standard: Bit rate: DECT 6.0 (Digital Enhanced Cordless 1,152 kbit/s ■ Telecommunications 6.0) Modulation: ■ Number of channels: GFSK (Gaussian Frequency Shift Keying) 60 Duplex Channels ■ RF transmission power: ■ Frequency range: 115 mW (max.) 1.92 GHz to 1.93 GHz...

  • Page 7: Technical Descriptions

    KX-TG6671B/KX-TG6672B/KX-TGA660B 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.61). 4.1.1. TDD Frame Format 5 ms 5 ms Up Link ( Portable - >...
  • Page 8 KX-TG6671B/KX-TG6672B/KX-TGA660B 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 fed to selected antenna.

  • Page 9: Block Diagram (Base Unit_Main)

    KX-TG6671B/KX-TG6672B/KX-TGA660B 4.2. Block Diagram (Base Unit_Main)

  • Page 10: Block Diagram (Base Unit_Rf Part)

    KX-TG6671B/KX-TG6672B/KX-TGA660B 4.3. Block Diagram (Base Unit_RF Part) ANT2 ANT2 ANT1 DA801 TXON RXON ANT1 KX-TG6671/6672 BLOCK DIAGRAM (Base Unit_RF Part)

  • Page 11: Circuit Operation (Base Unit)

    KX-TG6671B/KX-TG6672B/KX-TGA660B 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 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 12 KX-TG6671B/KX-TG6672B/KX-TGA660B 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: +3.0V VBAT IC601...
  • Page 13 KX-TG6671B/KX-TG6672B/KX-TGA660B 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 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: T →...
  • Page 14 KX-TG6671B/KX-TG6672B/KX-TGA660B 4.4.6. 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 15 KX-TG6671B/KX-TG6672B/KX-TGA660B 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. For this reason, the operation of this circuit assumes that a caller ID service contract has been entered for the circuit being used.
  • Page 16 KX-TG6671B/KX-TG6672B/KX-TGA660B 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 17: Block Diagram (Portable)

    KX-TG6671B/KX-TG6672B/KX-TGA660B 4.5. Block Diagram (Portable) 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 18: Block Diagram (Portable_Rf Part)

    KX-TG6671B/KX-TG6672B/KX-TGA660B 4.6. Block Diagram (Portable_RF Part) TXON DA801 RXON KX-TGA660 BLOCK DIAGRAM (Portable_RF Part)

  • Page 19: Circuit Operation (Portable)

    KX-TG6671B/KX-TG6672B/KX-TGA660B 4.7. Circuit Operation (Portable) 4.7.1. Outline Portable consists of the following ICs as shown in Block Diagram (Portable) (P.17). • 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 20 KX-TG6671B/KX-TG6672B/KX-TGA660B 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) → Q4 → D7→ F1 → BATTERY+... Battery... BATTERY- → R45 → GND → CHARGE-(Portable)→ CHARGE-(Base) → GND → DC-(GND) In this way, the BBIC on Portable detects the fact that the battery is charged.

  • Page 21: Circuit Operation (Charger Unit)

    KX-TG6671B/KX-TG6672B/KX-TGA660B 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.19) AC Adaptor The route for this is as follows: DC+pin of J1(+) → F1 → R1 → CHARGE+pad → Portable → CHARGE-pad → DC-pin of J1(-).

  • Page 22: Signal Route

    KX-TG6671B/KX-TG6672B/KX-TGA660B 4.9. Signal Route SIGNAL ROUTE ROUTE PORTABLE TX PORTABLE MIC - R73/74 - C11/13 - RA4 - IC1(22/23) - <PORTABLE_RF_TX_ROUTE> - ANT. --- ---ANT. - <BASE_UNIT_RF_RX_ROUTE> - IC501(46/47 - 28) - C184 - Q161 - Q902 - D101 - [P101] - T/R(TEL LINE)
  • Page 23 KX-TG6671B/KX-TG6672B/KX-TGA660B RF part signal route SIGNAL ROUTE ROUTE PORTABLE RF IC1(44/45) - L809 - C812 - DA801 - C895 - ANT [ TX_ROUTE ] PORTABLE RF ANT - C895 - DA801 - C826 - IC1(46/47) [ RX_ROUTE ] IC501(44/45) - C812 - L809 - DA801 - C895 - DA802 - C894/C893 - ANT1/ANT2...

  • Page 24: Location Of Controls And Components

    KX-TG6671B/KX-TG6672B/KX-TGA660B 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 25: Test Mode

    KX-TG6671B/KX-TG6672B/KX-TGA660B 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 26 KX-TG6671B/KX-TG6672B/KX-TGA660B Frequently Used Items (Base Unit) ex.) 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 contents. Careless rewriting may 00 02 ~ 00 06 Given value cause serious damage to the computer system.
  • Page 27 KX-TG6671B/KX-TG6672B/KX-TGA660B 8.1.2. Portable 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 28 KX-TG6671B/KX-TG6672B/KX-TGA660B Frequently Used Items (Portable) 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 29: Service Mode

    KX-TG6671B/KX-TG6672B/KX-TGA660B 9 Service Mode 9.1. How to Clear User Setting (Portable Only) Portable Press 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 30: Troubleshooting Guide

    KX-TG6671B/KX-TG6672B/KX-TGA660B 10 Troubleshooting Guide 10.1. Troubleshooting Flowchart FLOW CHART Not working Power ON Base Unit Check Power Not playback Playback Pre-Message Check Playback Not record (*1) Record Check Record Link No link No charge Battery Charge Check Battery Charge Check Link...
  • Page 31 KX-TG6671B/KX-TG6672B/KX-TGA660B 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 VDDC (1.2 V): Test Point [VDDC] RSTN: Reset = "High"? Check Reset Circuit.
  • Page 32 KX-TG6671B/KX-TG6672B/KX-TGA660B 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 16 of BBIC. Check ICM Recording in Signal Route.
  • Page 33 KX-TG6671B/KX-TG6672B/KX-TGA660B <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 34 KX-TG6671B/KX-TG6672B/KX-TGA660B 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 35 KX-TG6671B/KX-TG6672B/KX-TGA660B 10.1.3. Check Playback 10.1.3.1. Base Unit Check VDDC (1.7 V): Test Point [VDDC] Check Power Supply Circuit. Check output of BBIC (Pin 29, 31). Check BBIC and Flash Memory. Check Speaker and its surroundings. Cross Reference: Note: Power Supply Circuit/Reset Circuit (P.12) Flash Memory is IC601.
  • Page 36 KX-TG6671B/KX-TG6672B/KX-TGA660B 10.1.5. Check Link 10.1.5.1. Base Unit Does Base Unit make link with normal working Base Unit is OK. Check Portable. Portable? Is the voltage of VBAT about 3.4 V? Check around Power Supply Circuit. Is the voltage of VDDC about 1.7 V? Adjust +3.0V voltage to 3.0 V.
  • Page 37 KX-TG6671B/KX-TG6672B/KX-TGA660B 10.1.5.2. Portable Does Portable make link with Base Unit? Portable 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 1.2 V? Is the voltage of TP 3.0 V about 3.0 V?
  • Page 38 KX-TG6671B/KX-TG6672B/KX-TGA660B 10.1.6. Check the RF part 10.1.6.1. Finding out the Defective part 1. Prepare Regular P (*1) and Regular BU(*2). 2. a. Re-register regular P (Normal mode) to base unit (to be checked). If this operation fails in some ways, the base unit is defective.
  • Page 39 KX-TG6671B/KX-TG6672B/KX-TGA660B 10.1.6.2. RF Check Flowchart Each item (1 ~ 5) of RF Check Flowchart corresponds to Check Table for RF part (P.40). 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 40 KX-TG6671B/KX-TG6672B/KX-TGA660B 10.1.6.3. Check Table for RF part Item BU (Base Unit) Check P (Portable) Check Link Confirmation Normal 1. Register Regular P to BU (to be checked). 1. Register P (to be checked) to Regular BU. 2. Press [Talk] key of the Regular P to 2.
  • Page 41 KX-TG6671B/KX-TG6672B/KX-TGA660B 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 P (Portable) Check Range Confirmation TX TEST 1. Register Regular P to BU (to be checked). 1. Register P (to be checked) to Regular BU.
  • Page 42 KX-TG6671B/KX-TG6672B/KX-TGA660B 10.1.7. Registering a Portable to the Base Unit The supplied portable and base unit arepre-registered. If for some reason the portable is not registered to the base unit, re-register the portable. 1 Portable: {MENU} # 1 3 0 2 Base unit: Press and hold {LOCATOR} for about 5 seconds until the registration tone sounds.
  • Page 43 KX-TG6671B/KX-TG6672B/KX-TGA660B 10.1.9. Check Portable Transmission 10.1.14. Check Corded Handset Transmission Check MIC of portable. Check (Corded) Handset. Check portable Tx in Signal Route. Cross Reference: Check (Corded) Handset TX in Signal Route. Signal Route (P.22) Cross Reference: 10.1.10. Check Portable Reception Signal Route (P.22)

  • Page 44: Disassembly And Assembly Instructions

    KX-TG6671B/KX-TG6672B/KX-TGA660B 11 Disassembly and Assembly Instructions 11.1. Disassembly Instructions 11.1.1. Base Unit ① ① Remove the 8 screws to remove the cabinet cover. Cabinet Cover ② Remove 2 screws, Parallel wire and solders to remove the main P.C. Board. ②...
  • Page 45 KX-TG6671B/KX-TG6672B/KX-TGA660B Unhook the hook and remove the 9 screws to remove ③ the operational P.C. board. 9 screws ③ Operation P.C. Board Hook ③ ④ 2 screws ④ Remove the 2 screws to remove the LCD Unit. LCD Unit...
  • Page 46 KX-TG6671B/KX-TG6672B/KX-TGA660B ⑤ Remove solders and connectors to remove the LCD P.C. board. Solders LCD P.C. Board...
  • Page 47 KX-TG6671B/KX-TG6672B/KX-TGA660B 11.1.2. Portable 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 48 KX-TG6671B/KX-TG6672B/KX-TGA660B 11.1.3. Charger Unit 2 charge terminals...

  • Page 49: Assembly Instructions

    KX-TG6671B/KX-TG6672B/KX-TGA660B 11.2. Assembly Instructions 11.2.1. How to Replace the Base unit LCD LCD PLATE LCD HOLDER *PROCESS IT AS SHOWN IN FIGURE. REFLECTOR SHEET *PROCESS IT AS SHOWN IN FIGURE. *INSERT TO THE HOLE. DIFFUSION SHEET *PROCESS IT AS SHOWN IN FIGURE.
  • Page 50 KX-TG6671B/KX-TG6672B/KX-TGA660B Attach LCD P.C.B under conditions to push edge face. FFC/8 LCD P.C.B. STICK IT ALONG THESE LINES. View A SHEET/LCD View A COVER/LCD GRILL/LCD *INSERT FFC IN THE HOLE OF COVER/LCD.

  • Page 51: How To Replace The Portable Lcd

    KX-TG6671B/KX-TG6672B/KX-TGA660B 11.3. How to Replace the Portable 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 52: Measurements And Adjustments

    KX-TG6671B/KX-TG6672B/KX-TGA660B 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.30) 12.1. Equipment Required • Digital multi-meter (DMM): it must be able to measure voltage and current.
  • Page 53 KX-TG6671B/KX-TG6672B/KX-TGA660B 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. URX (red) To Serial Port...
  • Page 54 KX-TG6671B/KX-TG6672B/KX-TGA660B 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 55 KX-TG6671B/KX-TG6672B/KX-TGA660B 12.2.4. Commands (Base Unit) 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.

  • Page 56: Adjustment Standard (Base Unit)

    KX-TG6671B/KX-TG6672B/KX-TGA660B 12.3. Adjustment Standard (Base Unit) When connecting the simulator equipment for checking, please refer to below. 12.3.1. Bottom View Send command "SFR", Frequency then the frequency output Counter (*1) on this TP. * Start Monitor Oscilloscope DC 5.5V Oscilloscope...

  • Page 57: Adjustment Standard (Charger Unit)

    KX-TG6671B/KX-TG6672B/KX-TGA660B 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 58: Adjustment Standard (Portable)

    KX-TG6671B/KX-TG6672B/KX-TGA660B 12.5. Adjustment Standard (Portable) 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 59: Things To Do After Replacing Ic Or X'tal

    KX-TG6671B/KX-TG6672B/KX-TGA660B 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 60 KX-TG6671B/KX-TG6672B/KX-TGA660B 12.6.1.2. Portable First, operate the PC setting according to The Setting Method of JIG (P.52). 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 61: Frequency Table

    KX-TG6671B/KX-TG6672B/KX-TGA660B 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 62: Miscellaneous

    KX-TG6671B/KX-TG6672B/KX-TGA660B 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 63 KX-TG6671B/KX-TG6672B/KX-TGA660B 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 64: How To Replace The Flat Package

    KX-TG6671B/KX-TG6672B/KX-TGA660B 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 65 KX-TG6671B/KX-TG6672B/KX-TGA660B 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 66: How To Replace The Shield Case

    KX-TG6671B/KX-TG6672B/KX-TGA660B 13.3. How to Replace the Shield Case 13.3.1. 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 someone with less experience could overheat and damage the PCB foil.
  • Page 67 KX-TG6671B/KX-TG6672B/KX-TGA660B 13.3.4. 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. : PNMC1018Z 1. Put the shield case. 2. Solder the surroundings.

  • Page 68: Terminal Guide Of The Ics, Transistors And Diodes

    KX-TG6671B/KX-TG6672B/KX-TGA660B 13.4. Terminal Guide of the ICs, Transistors and Diodes 13.4.1. Base Unit (Reverse View) PNWI2TG6671H PNWI1TG6671H C0DBEYY00102 DSC7003S0L C2HBCY000094 C1CB00002903 C0JBAQ000247 B1ABDF000017, B1GBCFYY0020, B1ADGJ000002 B1ABDM000001, 2SA1037K, B1GDCFNN0001, PQVTBF822T7 B1ADCF000040, B1ADNB000003, B0DDCD000001 B1ACGP000008 B1GDCFJJ0001 Cathode Cathode Anode Cathode Anode 1SS355...

  • Page 69: Schematic Diagram

    KX-TG6671B/KX-TG6672B/KX-TGA660B 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 70: Schematic Diagram (Base Unit_Main)

    KX-TG6671B/KX-TG6672B/KX-TGA660B 14.2. Schematic Diagram (Base Unit_Main) C479 R451 C451 C452 ANT1 R807 RXON W 0.2mm MIC1 C822 C827 1st layer C892 ANT1-TP W 0.15mm L 20mm C890 3rd layer ANT1 L850 C894 C826 ANT1-G C820 1.5p ANT2 DA801 C805 C895...
  • Page 71 KX-TG6671B/KX-TG6672B/KX-TGA660B HANDSETMICp HANDSETMICn US:600ohm EU:Complex +3.0V REFERENCE Q902 R1015 1XX : TEL LINE 3XX : POWER, CHARGE Q1010 +3.0V R160 4XX : MIC, SP Q161 Q1012 5XX : BBIC HOOK-1 6XX : FLASH, EEPROM, KEY, LCD 7XX : FOR DK/BT...

  • Page 72: Schematic Diagram (Base Unit_Operation)

    KX-TG6671B/KX-TG6672B/KX-TGA660B 14.3. Schematic Diagram (Base Unit_Operation) KEYS_F WBX01-8 KEYS_E WBX01-1 KEYS_D WBX01-6 KEYS_C WBX01-9 KEYS_B WBX02-1 KEYS_A WBX02-2 ERASE2 ANSWER2 ERASE SOFT1 ANSWER SOFT3 SOFT2 MSG4 MSG3 MSG2 INT2 STOP2 MSG1 MEMO5 SKIP STOP HOLD MEMO4 DOWN REDIAL MEMO3 FLASH...

  • Page 73: Schematic Diagram (Base Unit_Lcd)

    KX-TG6671B/KX-TG6672B/KX-TGA660B 14.4. Schematic Diagram (Base Unit_LCD) LCD_CS /CS1 LCD_Reset /RESET LCD_C*/D SPICLK SPIDO BB3.0V VOUT C10 1u 25 CAP3P CAP1N C3 1u 25 CAP1P C4 1u 25 CAP2P CAP2N BB3.0V C5 1u 25 C6 1u 25 C7 1u 25 SPIDO...

  • Page 74: Schematic Diagram (Base Unit_Led)

    KX-TG6671B/KX-TG6672B/KX-TGA660B 14.5. Schematic Diagram (Base Unit_LED) LCD-Backlight NC: No Components KX-TG6671/6672 SCHEMATIC DIAGRAM (Base Unit_LED)
  • Page 75 KX-TG6671B/KX-TG6672B/KX-TGA660B Memo...

  • Page 76: Schematic Diagram (Portable_Main)

    KX-TG6671B/KX-TG6672B/KX-TGA660B 14.6. Schematic Diagram (Portable_Main) Charge Current VBAT VBAT BATT+ 2.5A CHG_CUR BATT- To Battery 3.0V When on Charge C172 0.1u 3.3k E_WP EEP_WP E_SCL EEP_SCL CONT Battery_ON E_SDA EEP_SDA VOUT * BBIC initialization stand-by status * When "SFR" command is executed, 13.824MHz...
  • Page 77 KX-TG6671B/KX-TG6672B/KX-TGA660B 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 78: Schematic Diagram (Portable_Led)

    KX-TG6671B/KX-TG6672B/KX-TGA660B 14.7. Schematic Diagram (Portable_LED) KX-TGA660 SCHEMATIC DIAGRAM (Portable_LED)

  • Page 79: Schematic Diagram (Charger Unit)

    KX-TG6671B/KX-TG6672B/KX-TGA660B 14.8. Schematic Diagram (Charger Unit) 6.8 (2W) SCHEMATIC DIAGRAM (Charger Unit)
  • Page 80 KX-TG6671B/KX-TG6672B/KX-TGA660B Memo...

  • Page 81: Printed Circuit Board

    KX-TG6671B/KX-TG6672B/KX-TGA660B 15 Printed Circuit Board 15.1. Circuit Board (Base Unit_Main) 15.1.1. Component View KX-TG6671/6672 CIRCUIT BOARD (Base Unit_Main (Component View))
  • Page 82 KX-TG6671B/KX-TG6672B/KX-TGA660B 15.1.2. Bottom View C514 R946 C918 C512 C185 VDDC C933 C919 C458 C513 C457 C510 R945 C532 R178 C151 C822 STM/CKM/P15 (CLK:13.824MHz) For JIG R505 R960 R506 D133 RA504 C611 R612 R606 C500 +3.0V IC904 VBAT C663 C662 L665...

  • Page 83: Circuit Board (Base Unit_Operation)

    KX-TG6671B/KX-TG6672B/KX-TGA660B 15.2. Circuit Board (Base Unit_Operation) 15.2.1. Component View SW901 KX-TG6671/6672 CIRCUIT BOARD (Base Unit_Operation ( Component View ))
  • Page 84 KX-TG6671B/KX-TG6672B/KX-TGA660B 15.2.2. Bottom View SOFT2 SOFT3 SOFT1 CARBON_TEST ERASE/ ERASE/ ANSWER ANSWER2 CLEAR CLEAR2 MSG1 MSG2 SKIP MSG3 MSG4 LOCATOR/ LOCATOR/ STOP/ STOP/ MEMO5 INTERCOM INTERCOM2 EXIT EXIT2 DOWN MEMO4 HOLD MEMO3 PNLB1179Z REDIAL/ PAUSE MEMO2 FLASH/ MEMO1 CALL WAIT...

  • Page 85: Circuit Board (Base Unit_Lcd)

    KX-TG6671B/KX-TG6672B/KX-TGA660B 15.3. Circuit Board (Base Unit_LCD) KX-TG6671/6672 CIRCUIT BOARD (Base Unit_LCD (Component View))

  • Page 86: Circuit Board (Base Unit_Led)

    KX-TG6671B/KX-TG6672B/KX-TGA660B 15.4. Circuit Board (Base Unit_LED) LED1 LED2 KX-TG6671/6672 CIRCUIT BOARD (Base Unit_LED (Component View))

  • Page 87: Circuit Board (Portable_Main)

    KX-TG6671B/KX-TG6672B/KX-TGA660B 15.5. Circuit Board (Portable_Main) 15.5.1. 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 88 KX-TG6671B/KX-TG6672B/KX-TGA660B 15.5.2. Bottom View LED12 CN3_C SOFT1 MENU SOFT2 TALK LED2 LED5 LEFT RIGHT FLASH DOWN KX-TGA660 CIRCUIT BOARD (Portable_Main (Bottom View))

  • Page 89: Circuit Board (Portable_Led)

    KX-TG6671B/KX-TG6672B/KX-TGA660B 15.6. Circuit Board (Portable_LED) PNLB1964Z KX-TGA660 CIRCUIT BOARD (Portable_LED (Component View))

  • Page 90: Circuit Board (Charger Unit)

    KX-TG6671B/KX-TG6672B/KX-TGA660B 15.7. Circuit Board (Charger Unit) 15.7.1. Component View CIRCUIT BOARD (Charger Unit (Component View)) 15.7.2. Bottom View 3.0A CIRCUIT BOARD (Charger Unit (Bottom View))

  • Page 91: Exploded View And Replacement Parts List

    KX-TG6671B/KX-TG6672B/KX-TGA660B 16 Exploded View and Replacement Parts List 16.1. Cabinet and Electrical Parts (Base Unit) PCB4 PCB3 PCB2 PCB1 Ref.No. Figure 2.6 8 mm...

  • Page 92: Cabinet And Electrical Parts (Portable)

    (*1) This cable is fixed by welding. Refer to How to Replace the Portable LCD (P.51). (*2) The rechargeable Ni-MH battery HHR-4DPA is available through sales route of Panasonic. (*3) Attach the SPACER (No. 120) to the exact location described above.

  • Page 93: Cabinet And Electrical Parts (Charger Unit)

    KX-TG6671B/KX-TG6672B/KX-TGA660B 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 94: Accessories And Packing Materials

    KX-TG6671B/KX-TG6672B/KX-TGA660B 16.4. Accessories and Packing Materials 16.4.1. KX-TG6671B...
  • Page 95 KX-TG6671B/KX-TG6672B/KX-TGA660B 16.4.2. KX-TG6672B A104 A101 A105 P102 A102 P102 (*1) A103 P102 A106 P101 Note: (*1)This pad is a piece of Ref No.P101 (GIFT BOX).
  • Page 96 KX-TG6671B/KX-TG6672B/KX-TGA660B 16.4.3. KX-TGA660B A203 A202 (*1) A201 P201 Note: (*1)This pad is a piece of Ref No.P401 (GIFT BOX).

  • Page 97: Replacement Parts List

    KX-TG6671B/KX-TG6672B/KX-TGA660B 16.5. Replacement Parts List Safety Ref. Part No. Part Name & Description Remarks 1. RTL (Retention Time Limited) 6SA522A RUBBER PARTS, RING Note: PNKM1234Z1 UPPER CABINET PS-HB The “RTL” marking indicates that its Retention Time is PNBH1016Z1 HOOK LEVER...
  • Page 98 KX-TG6671B/KX-TG6672B/KX-TGA660B Safety Ref. Part No. Part Name & Description Remarks Safety Ref. Part No. Part Name & Description Remarks D903 MAZ805100L DIODE(SI) R652 ERJ2GEJ561 D906 1SS355 DIODE(SI) R653 ERJ2GEJ561 D907 B0EDER000009 DIODE(SI) R654 ERJ2GEJ101 D908 B0ECKM000008 DIODE(SI) R658 ERJ2GEJ101 D909...
  • Page 99 KX-TG6671B/KX-TG6672B/KX-TGA660B Safety Ref. Part No. Part Name & Description Remarks Safety Ref. Part No. Part Name & Description Remarks C186 ECUE1H100DCQ 10p C828 ECUE1H100DCQ 10p C306 F2A1C1010119 100 C859 F1G1H2R2A480 2.2p C321 ECUV1A105KBV 1 C863 F1G1H1R5A480 1.5p C323 ECUE1H100DCQ 10p...
  • Page 100 KX-TG6671B/KX-TG6672B/KX-TGA660B No. of the optional Portable may differ from the included Safety Ref. Part No. Part Name & Description Remarks Portable. PQ4R10XJ221 (*2) When replacing IC3 or X1, make the adjustment PQ4R10XJ560 using PNZZTG6671B. Refer to Portable (P.60) of Things PQ4R10XJ221 to Do after Replacing IC or X'tal.
  • Page 101 KX-TG6671B/KX-TG6672B/KX-TGA660B Safety Ref. Part No. Part Name & Description Remarks Safety Ref. Part No. Part Name & Description Remarks ERJ2GEJ222 2.2k F1J0J2260002 22 ERJ2RKF1003 100k ECUE1H100DCQ 10p ERJ2GEJ104 100k ECUE1H100DCQ 10p ERJ2RKF1003 100k C110 ECUE1H102KBQ 0.001 ERJ2GEJ391 C127 ECUE1H102KBQ 0.001...
  • Page 102 ERX2SJ6R8 (FUSE) K5H302Y00003 FUSE 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-TG6671B Safety Ref. Part No. Part Name & Description Remarks PNLV226Z AC ADAPTOR PQJA10075Z...

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