Panasonic KX-TG6700B Service Manual
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Panasonic KX-TG6700B Service Manual

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Telephone Equipment
KX-TG6700B
KX-TG6702B
KX-TGA670B
5.8 GHz Expandable Digital Cordless
Answering System
5.8 GHz Expandable Digital Cordless
Answering System with Two Handsets
Black Version
(for U.S.A.)
© 2006 Panasonic Communications Co., Ltd. All
rights reserved. Unauthorized copying and distribu-
tion is a violation of law.
ORDER NO. KM40604038CE
F12

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  • Page 1 5.8 GHz Expandable Digital Cordless Answering System 5.8 GHz Expandable Digital Cordless Answering System with Two Handsets Black Version (for U.S.A.) © 2006 Panasonic Communications Co., Ltd. All rights reserved. Unauthorized copying and distribu- tion is a violation of law.
  • Page 2 KX-TG6700B/KX-TG6702B/KX-TGA670B...

  • Page 3: Table Of Contents

    KX-TG6700B/KX-TG6702B/KX-TGA670B TABLE OF CONTENTS PAGE PAGE 1 Safety Precaution ------------------------------------------------ 4 14 Printed Circuit Board ---------------------------------------- 105 1.1. For Service Technicians --------------------------------- 4 14.1. Circuit Board (Base Unit_Main) -------------------- 105 2 Warning -------------------------------------------------------------- 4 14.2. Circuit Board (Base Unit_RF Part)----------------- 107 2.1.

  • Page 4: Safety Precaution

    KX-TG6700B/KX-TG6702B/KX-TGA670B 1 Safety Precautions 1.1. For Service Technicians ICs and LSIs are vulnerable to static electricity. When repairing, the following precautions will help prevent recurring malfunctions. 1. Cover plastic parts boxes with aluminum foil. 2. Ground the soldering irons. 3. Use a conductive mat on worktable.
  • Page 5 KX-TG6700B/KX-TG6702B/KX-TGA670B 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 manufac- turer’s specific instructions for the melting points of their products and any precautions for using their product with other materi-...

  • Page 6: Specifications

    KX-TG6700B/KX-TG6702B/KX-TGA670B 3 Specifications...

  • Page 7: Technical Descriptions

    KX-TG6700B/KX-TG6702B/KX-TGA670B 4 Technical Descriptions 4.1. FHSS Description 4.1.1. Frequency The frequency range of 5.76 GHz-5.84 GHz is used. Transmitting and receiving channel between Base Unit and Handset is same frequency. Refer to Frequency Table (P.88). 4.1.2. FHSS (Frequency Hopping Spread Spectrum) This telephone is using an IC chip which has similar specification to WDCT (World Digital Cordless Telephone) and is the tele- phone system that can use multiple portable unit simultaneously.
  • Page 8 KX-TG6700B/KX-TG6702B/KX-TGA670B 4.1.2.1. TDD Frame Format Sync Field (72 bit): Preamble 56 bit + SyncWord 16 bit Base Unit (Handset) adjusts the timing of reception so that reception of Base Unit (Handset) can correspond to transmission of Handset (Base Unit). It is necessary for sync-field that Handset gets synchronization.
  • Page 9 KX-TG6700B/KX-TG6702B/KX-TGA670B 4.1.3. Signal Flowchart in the Whole System Reception CN101 of the Base Unit is connected to the TEL line, and signal is enter through the bridge diode D101. While talking, the relay (Q141) is turned ON and amplified at the Q171, then led to DSP (IC501). The DSP encodes ADPCM and TDD/TDMA with FHSS to TXMOD.

  • Page 10: Explanation Of Link Data Communication

    KX-TG6700B/KX-TG6702B/KX-TGA670B 4.2. Explanation of Link Data Communication 4.2.1. Calling 4.2.2. To Terminate Communication 4.2.3. Ringing...

  • Page 11: Block Diagram (Base Unit_Main)

    KX-TG6700B/KX-TG6702B/KX-TGA670B 4.3. Block Diagram (Base Unit_Main)

  • Page 12: Block Diagram (Base Unit_Rf Part)

    KX-TG6700B/KX-TG6702B/KX-TGA670B 4.4. Block Diagram (Base Unit_RF Part) TC_CTRL RSTN RXEN TXEN REFIN RXGAIN RXEN TXEN 5.8GHz...

  • Page 13: Circuit Operation (Base Unit)

    KX-TG6700B/KX-TG6702B/KX-TGA670B 4.5. Circuit Operation (Base Unit) General Description: (DSP, Flash Memory) 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 DSP system is fully controlled by a host processor DSP. The host processor provides activation and control of all that functions as follows.
  • Page 14 KX-TG6700B/KX-TG6702B/KX-TGA670B 4.5.3. Power Supply Circuit Function: The power supply voltage from AC adaptor is converted to the desired voltage of each block. Circuit Operation: • Q300 and IC300: 4.5 V DCDC Converter • IC331: 3.3 V Regulator...
  • Page 15 KX-TG6700B/KX-TG6702B/KX-TGA670B 4.5.3.1. Charge Circuit The voltage from the AC adaptor is supplied to the charge circuits. Main charge (130 ~ 220 mA at the Battery) of maximum 7-hours is started soon after the Handset is placed on the Base Unit. Then it changes to Trickle charge to prevent from overcharging.
  • Page 16 KX-TG6700B/KX-TG6702B/KX-TGA670B 4.5.4. Reset Circuit Function: This circuit is used to initialize the microcomputer when it incorporates an AC adaptor. Circuit Operation: When the AC Adaptor is inserted into the unit, then the voltage is shifted by IC331 and power is supplied to the DSP.
  • Page 17 KX-TG6700B/KX-TG6702B/KX-TGA670B 4.5.5. Telephone Line Interface Telephone Line Interface Circuit: Function • Bell signal detection • ON/OFF hook and pulse dial circuit • Side tone circuit 4.5.5.1. Line 1 Bell signal detection and OFF HOOK circuit: In the idle mode, Q141 and Q142 are open to cut the DC loop current and 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 18 KX-TG6700B/KX-TG6702B/KX-TGA670B 4.5.5.2. Line 2 Bell signal detection and OFF HOOK circuit: In the idle mode, Q241 is open to cut the DC loop current and 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 19 KX-TG6700B/KX-TG6702B/KX-TGA670B 4.5.6. Auto Disconnect Circuit Function: This circuit is used to detect the fact that another telephone connected to the same line is OFF-HOOK while the unit is in mes- sage receiving, OGM transmitting and Hold status. Circuit Operation: Operational amplifier with high value resisters is used in order to isolate both lines.
  • Page 20 KX-TG6700B/KX-TG6702B/KX-TGA670B Line 2 You can enable or disable the Auto Disconnect function. See Check Record (P.66)
  • Page 21 KX-TG6700B/KX-TG6702B/KX-TGA670B 4.5.7. Parallel Connection Detect Circuit Function: This circuit is used to detect the fact that another telephone connected to the same line is OFF-HOOK while the unit is in idle state; to catch the empty line automatically. Circuit Operation: The circuit is same as Auto Disconnect circuit.
  • Page 22 KX-TG6700B/KX-TG6702B/KX-TGA670B 4.5.8. 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 23 KX-TG6700B/KX-TG6702B/KX-TGA670B 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 24: Block Diagram (Handset_Main)

    KX-TG6700B/KX-TG6702B/KX-TGA670B 4.6. Block Diagram (Handset_Main) IC241 X201 EEPROM 13.824MHz Q231 CHARGE DETECT CHG_DET OSC_IN Q361 Q362, Q363 RF part TX_DATA RX_DATA CHARGE CHG_CTL CHARGE PA_CONT CONTROL RADIO_EN D361 CON_EN R376~R379 SYN_LE2 SYN_OUT CHARGE IBAT1 SYN_DATA CURRENT IBAT2 SYN_CLK SYN_LE1 IC374...

  • Page 25: Block Diagram (Handset_Rf Part)

    KX-TG6700B/KX-TG6702B/KX-TGA670B 4.7. Block Diagram (Handset_RF Part) TC_CTRL RSTN RXEN TXEN REFIN RXGAIN RXEN TXEN 5.8GHz...

  • Page 26: Circuit Operation (Handset)

    KX-TG6700B/KX-TG6702B/KX-TGA670B 4.8. Circuit Operation (Handset) 4.8.1. Construction The circuit mainly consists of DSP and RF part as shown in the block diagram. 4.8.1.1. DSP: IC201 Function • Battery Low, Power down detect circuit • Ringer Generation • Interface circuit RF part, Speaker, Mic, LED, Key scan, LCD, Headset...
  • Page 27 KX-TG6700B/KX-TG6702B/KX-TGA670B 4.8.2. Power Supply Circuit Voltage is supplied separately to each block.
  • Page 28 KX-TG6700B/KX-TG6702B/KX-TGA670B 4.8.3. Charge Circuit When the Handset is put on the cradle of the Base Unit or the charger, the power is supplied from CHARGE+ and CHARGE- terminals to charge the battery via Q361 or R366, and D361. The voltage between CHARGE+ and CHARGE- flows R231 →...
  • Page 29 KX-TG6700B/KX-TG6702B/KX-TGA670B 4.8.5. Sending Signal The voice signal from the microphone is input to DSP (89, 90). CN331 is the headset jack. When the headphone is connected, the Q331 detect it. The input from the microphone of the Handset (MIN, MIP) is cut and the microphone signal from the headset is input to DSP (94).

  • Page 30: Circuit Operation (Rf Part)

    KX-TG6700B/KX-TG6702B/KX-TGA670B 4.9. Circuit Operation (RF Part) General Description: RF part includes Transmitter and Receiver functions. Digital signals (Mainly voice data) that come from DSP, are modulated and are transmitted. On the other hand, received signals are demodulated and go out to DSP.
  • Page 31 KX-TG6700B/KX-TG6702B/KX-TGA670B 4.9.1. Power Supply Circuit As indicated below, the various voltages are supplied to each block. V_PA, about 4.0 V at Base Unit or 3.1 V at Handset, is supplied to the Power amplifier in 5.8 GHz PA circuit. IC841 is 3.0 V (Base Unit) or 2.8 V (Handset) Regulators, and IC761 is a 2.5 V Regulator. They output Vcc_5.8 GHz, and Vcc_2.4...
  • Page 32 KX-TG6700B/KX-TG6702B/KX-TGA670B 4.9.2. 2.4 GHz Mod/Demod Circuit IC701 incorporates all of the modulation and demodulation functions. TX Digital data (TX_DATA) from DSP is supplied to pin 27 of IC701, and then 2.4 GHz TX modulated signal is output from pin 1. This TX signal goes into the 5.8 GHz Converter circuit. 2.4 GHz RX signal from 5.8 GHz Converter circuit is passed through matching circuit and supplied to pin 4 of IC701, then demodulated...
  • Page 33 KX-TG6700B/KX-TG6702B/KX-TGA670B 4.9.3. 5.8 GHz Converter Circuit This block converts frequency of TX signal and RX signal. IC801 includes TX-MIXER, RX-MIXER, PLL and VCO modules internally. The VCO module is tuned by PLL synthesizer module, and generates 3.4 GHz Local signal. Reference clock (13.824 MHz) from DSP block is supplied to pin 7 of IC701.
  • Page 34 KX-TG6700B/KX-TG6702B/KX-TGA670B 4.9.4. 5.8 GHz PA (Power Amplifier), 5.8 GHz LNA (Low Noise Amplifier) and Antenna Switch Circuit PA block amplifies power of 5.8 GHz TX signal. 5.8 GHz TX signal from 5.8 GHz Converter circuit is filtered by 5.8 GHz-BPF FL811, and amplified by Power amplifier (PA) block of IC851.

  • Page 35: Circuit Operation (Charger Unit)

    KX-TG6700B/KX-TG6702B/KX-TGA670B 4.10. Circuit Operation (Charger Unit) The voltage from the AC adaptor is supplied to the charge circuits. Main charge (130 ~ 220 mA at the Battery) of maximum 7- hours is started soon after the Handset is placed on the Charger Unit. Then it changes to Trickle charge to prevent from overcharging.

  • Page 36: Signal Route

    KX-TG6700B/KX-TG6702B/KX-TGA670B 4.11. Signal Route Each signal route is as follows.
  • Page 37 KX-TG6700B/KX-TG6702B/KX-TGA670B RF part signal route...

  • Page 38: Location Of Controls And Components

    KX-TG6700B/KX-TG6702B/KX-TGA670B 5 Location of Controls and Components 5.1. Controls 5.1.1. Base Unit...

  • Page 39: Displays

    KX-TG6700B/KX-TG6702B/KX-TGA670B 5.2. Displays 5.1.2. Handset 5.2.1. Base Unit Display Items 5.2.2. Handset Display Items...

  • Page 40: Installation Instructions

    KX-TG6700B/KX-TG6702B/KX-TGA670B 6 Installation Instructions 6.1. Setting Up the Base Unit 6.1.1. Connecting the AC Adaptor...
  • Page 41 KX-TG6700B/KX-TG6702B/KX-TGA670B 6.1.2. Connecting the Telephone Line Cord...
  • Page 42 KX-TG6700B/KX-TG6702B/KX-TGA670B 6.1.2.1. If you subscribe to a DSL service...

  • Page 43: Setting Up The Handset

    KX-TG6700B/KX-TG6702B/KX-TGA670B 6.2. Setting Up the Handset 6.3. Battery Installation/ Replacement 6.2.1. Connecting the Charger (KX- TG6702 only)

  • Page 44: Battery Charge

    Battery Charge 6.4.1. Battery Level 6.4.2. Panasonic Battery Performance Note for service: The battery strength may not be indicated correctly if the battery is disconnected and connected again, even after it is fully charged. In that case, by recharging the battery as mentioned above, you will get a correct indication of the battery strength.

  • Page 45: Operation Instructions

    KX-TG6700B/KX-TG6702B/KX-TGA670B 7 Operation Instructions 7.1. Symbols Used in These Operating Instructions...

  • Page 46: Programmable Settings

    KX-TG6700B/KX-TG6702B/KX-TGA670B 7.2. Programmable Settings 7.2.1. Programming by Scrolling through the Display Menus...
  • Page 47 KX-TG6700B/KX-TG6702B/KX-TGA670B...
  • Page 48 KX-TG6700B/KX-TG6702B/KX-TGA670B 7.2.2. Programming Using the Direct Commands...
  • Page 49 KX-TG6700B/KX-TG6702B/KX-TGA670B...

  • Page 50: Error Messages

    KX-TG6700B/KX-TG6702B/KX-TGA670B 7.3. Error Messages...

  • Page 51: Troubleshooting

    KX-TG6700B/KX-TG6702B/KX-TGA670B 7.4. Troubleshooting If the display shows error messages, see “Error Messages (P.50)” for the Cause & Solution.
  • Page 52 KX-TG6700B/KX-TG6702B/KX-TGA670B...
  • Page 53 KX-TG6700B/KX-TG6702B/KX-TGA670B...
  • Page 54 KX-TG6700B/KX-TG6702B/KX-TGA670B...

  • Page 55: Test Mode

    KX-TG6700B/KX-TG6702B/KX-TGA670B 8 Test Mode 8.1. Adjustment and Test Mode Flow Chart 8.1.1. Test Burst Mode for Base Unit Note: (*1) LCD displays the Channel number. (*2) Refer to Check Table for RF part (P.72) and RX-CW Test Mode for Handset (P.60) for proper Handset settings.
  • Page 56 KX-TG6700B/KX-TG6702B/KX-TGA670B 8.1.2. RX-CW Test Mode for Base Unit Note: (*1) LCD displays the Channel number. (*2) Refer to Check Table for RF part (P.72) and Test Burst Mode for Handset (P.59) for proper Handset settings.
  • Page 57 KX-TG6700B/KX-TG6702B/KX-TGA670B 8.1.3. Test Link Mode for Base Unit Note: (*1) LCD displays the Channel number. (*2) LCD displays the number of selected power. (*3) Refer to Test Link Mode for Handset (P.61). If can not proceed to the next step, refer to Registering a Handset (P.70).
  • Page 58 KX-TG6700B/KX-TG6702B/KX-TGA670B 8.1.4. Adjustment Mode for Base Unit Cross Reference Check and Adjust X501 (Base Unit) Frequency (P.85) Note: (*1) This is an adjustment value (hex.).
  • Page 59 KX-TG6700B/KX-TG6702B/KX-TGA670B 8.1.5. Test Burst Mode for Handset Note: (*1) LCD displays the Channel number. (exception: default/ CH00 = 1ch.) (*2) Refer to Check Table for RF part (P.72) and RX-CW Test Mode for Base Unit (P.56) for proper Base Unit settings.
  • Page 60 KX-TG6700B/KX-TG6702B/KX-TGA670B 8.1.6. RX-CW Test Mode for Handset Note: (*1) LCD displays the Channel number. (exception: default/ CH00 = 1ch.) (*2) Refer to Check Table for RF part (P.72) and Test Burst Mode for Base Unit (P.55) for proper Base Unit settings.
  • Page 61 KX-TG6700B/KX-TG6702B/KX-TGA670B 8.1.7. Test Link Mode for Handset Note: (*1) LCD displays the Channel number. (exception: default/ CH00 = 1ch.) (*2) If can not proceed to the next step, refer to Registering a Handset (P.70). (*3) for factory use only. (*4) Refer to Check Table for RF part (P.72) and Test Link Mode for Base Unit (P.57) for proper Base Unit settings.
  • Page 62 KX-TG6700B/KX-TG6702B/KX-TGA670B 8.1.8. Adjustment Mode for Handset Cross Reference (*1) Adjust Battery Low Detector Voltage (Handset) (P.85) Note: (*2) These are the default values. (*3) These values may not be fixed depending on the battery strength.

  • Page 63: Service Mode

    KX-TG6700B/KX-TG6702B/KX-TGA670B 9 Service Mode 9.1. How to Clear User Setting Units are reset to the Factory settings by this operation (Erase recorded Voice messages, stored Phone numbers, Caller list and etc.). This operation should not be performed for a usual repair.

  • Page 64: Troubleshooting Guide

    KX-TG6700B/KX-TG6702B/KX-TGA670B 10 Troubleshooting Guide 10.1. Troubleshooting Flowchart Cross Reference: Note: Check Power (P.65) (*1) When a user claims that the unit disconnects a call right Error Message Table (P.65) after the greeting message and no incoming messages can Check Playback (P.67) be recorded, this symptom can not be reappeared with TEL Check Record (P.66)
  • Page 65 KX-TG6700B/KX-TG6702B/KX-TGA670B 10.1.1. Check Power Cross Reference: Note: Power Supply Circuit (P.14) Flash Memory is IC601. Reset Circuit (P.16) DSP is IC501. (*1) Refer to Specifications (P.6) for part number and supply voltage of AC adaptor. 10.1.2. Error Message Table Display...
  • Page 66 KX-TG6700B/KX-TG6702B/KX-TGA670B 10.1.3. Check Record BASE UNIT A) Not record Greeting Message B) Not record Incoming Message C) How to change the 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.
  • Page 67 KX-TG6700B/KX-TG6702B/KX-TGA670B 10.1.4. Check Playback Cross Reference: Note: Power Supply Circuit (P.14) Flash Memory is IC601. DSP is IC501. 10.1.5. Check Sp-phone Transmission Cross Reference: Note: Signal Route (P.36) Flash Memory is IC601. Telephone Line Interface (P.17) DSP is IC501. 10.1.6. Check Sp-phone Reception...
  • Page 68 KX-TG6700B/KX-TG6702B/KX-TGA670B 10.1.7. Check Battery Charge Note: Flash Memory is IC601. DSP is IC501. (*1) Refer to Specifications (P.6) for part number and supply voltage of AC adaptor.
  • Page 69 KX-TG6700B/KX-TG6702B/KX-TGA670B 10.1.8. Check Link Note: Flash Memory is IC601. DSP is IC501. (*1) Refer to Finding out the Defective part (P.70). Cross Reference: Check the RF part (P.70)
  • Page 70 KX-TG6700B/KX-TG6702B/KX-TGA670B 10.1.9. Check the RF part 10.1.9.1. Finding out the Defective part After All the Checkings or Repairing 1. Re-register the checked Handset to the checked Base Unit, and Regular HS to Regular BU. Note: (*1) HS: Handset (*2) BU: Base Unit...
  • Page 71 KX-TG6700B/KX-TG6702B/KX-TGA670B 10.1.9.1.2. Deregistering a Handset 10.1.9.2. RF Check Flowchart Each item (1 ~ 6) of RF Check Flowchart corresponds to Check Table for RF part (P.72). Please refer to the each item.
  • Page 72 KX-TG6700B/KX-TG6702B/KX-TGA670B 10.1.9.3. 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 73 KX-TG6700B/KX-TG6702B/KX-TGA670B 10.1.9.4. 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 74 KX-TG6700B/KX-TG6702B/KX-TGA670B 10.1.9.5. RF-DSP Interface Signal Wave Form Test Burst Mode:...
  • Page 75 KX-TG6700B/KX-TG6702B/KX-TGA670B Test Burst Mode:...
  • Page 76 KX-TG6700B/KX-TG6702B/KX-TGA670B 10.1.10. Check Handset Transmission Cross Reference: Signal Route (P.36). 10.1.11. Check Handset Reception Cross Reference: Signal Route (P.36). Note: When checking the RF part, Refer to Check the RF part (P.70) 10.1.12. Check Caller ID Cross Reference: Telephone Line Interface (P.17) Calling Line Identification (Caller ID)/Call Waiting Caller ID (P.22).

  • Page 77: How To Replace The Flat Package

    KX-TG6700B/KX-TG6702B/KX-TGA670B 10.2. 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 78 KX-TG6700B/KX-TG6702B/KX-TGA670B 10.2.3. 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 79: How To Replace The Llp

    KX-TG6700B/KX-TG6702B/KX-TGA670B 10.3. How to Replace the LLP (Leadless Leadframe Package) IC 10.3.1. 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 80 KX-TG6700B/KX-TG6702B/KX-TGA670B 10.3.4. 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.

  • Page 81: Disassembly And Assembly Instructions

    KX-TG6700B/KX-TG6702B/KX-TGA670B 11 Disassembly and Assembly Instructions 11.1. Disassembly Instructions 11.1.1. Base Unit...
  • Page 82 KX-TG6700B/KX-TG6702B/KX-TGA670B 11.1.2. Handset...
  • Page 83 KX-TG6700B/KX-TG6702B/KX-TGA670B 11.1.3. Charger Unit...

  • Page 84: Fix The Lcd And The Receiver Guide To The Main P.c.board (Handset)

    KX-TG6700B/KX-TG6702B/KX-TGA670B 11.2. Fix the LCD and the Receiver Guide to the Main P.C.Board (Handset)

  • Page 85: Measurements And Adjustments

    KX-TG6700B/KX-TG6702B/KX-TGA670B 12 Measurements and Adjustments 12.1. Things to Do after Replacing IC 12.1.1. X501 (Base Unit), X201 (Handset) Check Equipment: Frequency counter Check Point for measurement: BCK Checking tolerance: 13.824 MHz ± 270 Hz (Base Unit)/13.824 MHz ± 100 Hz (Handset) 12.1.1.1.

  • Page 86: Base Unit Reference Drawing

    KX-TG6700B/KX-TG6702B/KX-TGA670B 12.2. Base Unit Reference Drawing When connecting the Simulator Equipment for checking, please refer to below. Note: (*1) is referred to No.3 of Check Table for RF part (P.72)

  • Page 87: Handset Reference Drawing

    KX-TG6700B/KX-TG6702B/KX-TGA670B 12.3. Handset Reference Drawing When connecting the Simulator Equipment for checking, please refer to below. Note: (*1) is referred to No.3 of Check Table for RF part (P.72)

  • Page 88: Frequency Table

    KX-TG6700B/KX-TG6702B/KX-TGA670B 12.4. Frequency Table 12.4.1. Base Unit Channel TX/RX Frequency (MHz) Channel TX/RX Frequency (MHz) Channel TX/RX Frequency (MHz) 5759.702398 5788.242242 5816.782086 5760.592291 5789.132135 5817.671978 5761.486139 5790.025982 5818.565826 5762.376031 5790.915875 5819.455719 5763.269879 5791.809723 5820.349566 5764.159771 5792.699615 5821.239459 5765.053619 5793.593463 5822.133307 5765.943512...
  • Page 89 KX-TG6700B/KX-TG6702B/KX-TGA670B 12.4.2. Handset Channel TX/RX Frequency (MHz) Channel TX/RX Frequency (MHz) Channel TX/RX Frequency (MHz) 5759.700425 5788.240269 5816.780113 5760.594273 5789.134117 5817.673960 5761.484165 5790.024009 5818.563853 5762.378013 5790.917857 5819.457701 5763.267906 5791.807749 5820.347593 5764.161753 5792.701597 5821.241441 5765.051646 5793.591490 5822.131333 5765.945494 5794.485337 5823.025181 5766.835386 5795.375230...

  • Page 90: Schematic Diagram

    KX-TG6700B/KX-TG6702B/KX-TGA670B 13 Schematic Diagram 13.1. For Schematic Diagram 13.1.1. Base Unit (Schematic Diagram (Base Unit_Main)) Notes: 1. DC voltage measurements are taken with voltmeter from the negative voltage line. 2. The schematic diagrams may be modified at any time with the development of new technology.
  • Page 91 KX-TG6700B/KX-TG6702B/KX-TGA670B 13.1.4. Level Relationship Line Input Level Output Level Remarks Base SP RX -25 dBm -5 dBm 8 ohm terminal, volume max Handset RX -25 dBm -11 dBm 150 ohm terminal, volume max Handset SP RX -35 dBm -4 dBm...

  • Page 92: Schematic Diagram (Base Unit_Main)

    KX-TG6700B/KX-TG6702B/KX-TGA670B 13.2. Schematic Diagram (Base Unit_Main) 13.2.1. Line 1 ANT0 ANT1 4.0V IC381 CON_EN CON_EN VOUT PQLT3E3A RADIO_EN RADIO_EN RADIO_EN SP Phone TX PA_CONT PA_CONT PA_CONT SYN_LE2 SYN_LE2 SYN_LE2 SYN_OUT -47dBm/No load SYN_OUT SYN_OUT SYN_DATA SYN_DATA SYN_DATA 10mVp-p SYN_CLK SYN_CLK...
  • Page 93 KX-TG6700B/KX-TG6702B/KX-TGA670B 4.5V CONVERTOR 4.5V IC331 Q300 L300 22uH VOUT VDET *RESET 4.2V CONVERTOR REFERENCE IC321 1XX : TEL LINE 3XX : POWER, CHARGE 4XX : RESET, MIC, SP 5XX : DSP, RF I/F IC300 6XX : FLASH, KEY, LCD 7XX : RF(2.4G)
  • Page 94 KX-TG6700B/KX-TG6702B/KX-TGA670B 13.2.2. Line 2...
  • Page 95 KX-TG6700B/KX-TG6702B/KX-TGA670B Memo...

  • Page 96: Schematic Diagram (Base Unit_Rf Part)

    KX-TG6700B/KX-TG6702B/KX-TGA670B 13.3. Schematic Diagram (Base Unit_RF Part) 4.0V 3.0V R863 R864 5.8GHz RF FL891 TRSW_IN VDD_PA 5.8GHz_LPF FL811 5.8GHz_BPF R813 3.0V GND_ISO1 PA_IN C891 ANT1 PA_EN VCC_PA1 SYN_CLK GND_ISO2 ANTSEL_A IC851 GND_ISO3 5.8G_PA ANTSEL_B C881 VCC_PA2 VCC_TXRX 5.8GHz RF ANT2...
  • Page 97 KX-TG6700B/KX-TG6702B/KX-TGA670B L860 PA_CONT CON_EN IC841 IC761 4.0V 3.0V_REG 2.5V_REG C766 C846 RADIO_EN L768 VRF(3.0V) VRF(2.5V) VOUT VOUT SYN_LE2 SYN_OUT SYN_DATA SYN_LE1 SYN_CLK C714 K1000P C707 K1000P C751 D10P 2.5V C708 C1.5P C713 D10P C752 K470P C735 K0.1 R747 C716 C715 TX_DATA 2.4GHz TX...

  • Page 98: Schematic Diagram (Base Unit_Operation)

    KX-TG6700B/KX-TG6702B/KX-TGA670B 13.4. Schematic Diagram (Base Unit_Operation) CN901 COM1 CN901 COM2 CN901 SEG3 CN901 SEG4 CN901 SEG5 CN901 SEG6 CN901 SEG7 CN901 SEG8 CN901 SEG9 CN901 SEG10 CN901 SEG11 CN901 SEG12 CN901 2APVCC CN901 LED904 MSG_LED CN901 LED907 ANS_LED CN901 LED902...
  • Page 99 KX-TG6700B/KX-TG6702B/KX-TGA670B Memo...

  • Page 100: Schematic Diagram (Handset_Main)

    KX-TG6700B/KX-TG6702B/KX-TGA670B 13.5. Schematic Diagram (Handset_Main) IC246 OSC_IN RSSI RSSI TX_DATA NC10 TX_DATA NC11 PA_CONT NC12 PA_CONT NC13 RX_EN NC14 RX_EN NC15 TX_EN NC16 TX_EN NC17 RX_GAIN NC18 *RESET RX_GAIN NC19 RX_DATA RX_DATA CON_EN CON_EN R340 SYN_LE2 C340 K0.1 SYN_LE2 X201 RADIO_EN 13.824MHZ...
  • Page 101 KX-TG6700B/KX-TG6702B/KX-TGA670B SP phone RX L327 470nH (MIC Mute ON) (Vol. MAX) L326 470nH 1.4Vp-p/8Ω 2.7V R331 Headset TX -44dBm/600Ω IN CN331 14mVp-p R227 100k HEADSET_JACK L331 Q331 R225 L332 C335 L334 22uF 150Ω Headset RX 200mVp-p/150Ω (Vol. MAX) R323 Handset RX 620mVp-p/150Ω...

  • Page 102: Schematic Diagram (Handset_Rf Part)

    KX-TG6700B/KX-TG6702B/KX-TGA670B 13.6. Schematic Diagram (Handset_RF Part) 3.1V R863 R864 2.8V 5.8GHz TX TRSW_IN VDD_PA FL811 5.8GHz RF 5.8GHz_BPF R813 GND_ISO1 PA_IN C891 ANT1 PA_EN VCC_PA1 SYN_CLK GND_ISO2 ANTSEL_A IC851 5.8G_PA GND_ISO3 ANTSEL_B VCC_PA2 VCC_TXRX C881 ANT2 LNA_EN 2G4_IN GND_ISO4 LNA_GAIN...
  • Page 103 KX-TG6700B/KX-TG6702B/KX-TGA670B L860 PA_CONT CON_EN IC841 IC761 3.1V 2.8V_REG 2.5V_REG C766 C846 ON/OFF RADIO_EN L768 VRF(2.8V) VRF(2.5V) VOUT VOUT SYN_LE2 SYN_OUT SYN_DATA 2.5V SYN_LE1 SYN_CLK C714 K1000P C707 K1000P C751 D10P C713 D10P C708 C1.5P C752 K470P C735 K0.1 R747 C716...

  • Page 104: Schematic Diagram (Charger Unit)

    KX-TG6700B/KX-TG6702B/KX-TGA670B 13.7. Schematic Diagram (Charger Unit) 6.5~11V NC: No Components SCHEMATIC DIAGRAM (Charger Unit)

  • Page 105: Printed Circuit Board

    KX-TG6700B/KX-TG6702B/KX-TGA670B 14 Printed Circuit Board 14.1. Circuit Board (Base Unit_Main) 14.1.1. Component View...
  • Page 106 KX-TG6700B/KX-TG6702B/KX-TGA670B 14.1.2. Flow Solder Side View...

  • Page 107: Circuit Board (Base Unit_Rf Part)

    KX-TG6700B/KX-TG6702B/KX-TGA670B 14.2. Circuit Board (Base Unit_RF Part) C891 FL881 C881 FL891 FL821 R813 FL811 C856 C857...
  • Page 108 KX-TG6700B/KX-TG6702B/KX-TGA670B Memo...

  • Page 109: Circuit Board (Base Unit_Operation)

    KX-TG6700B/KX-TG6702B/KX-TGA670B 14.3. Circuit Board (Base Unit_Operation) 14.3.1. Component View...
  • Page 110 KX-TG6700B/KX-TG6702B/KX-TGA670B 14.3.2. Flow Solder Side View...

  • Page 111: Circuit Board (Handset_Main)

    KX-TG6700B/KX-TG6702B/KX-TGA670B 14.4. Circuit Board (Handset_Main) 14.4.1. Component View...
  • Page 112 KX-TG6700B/KX-TG6702B/KX-TGA670B 14.4.2. Flow Solder Side View...

  • Page 113: Circuit Board (Handset_Rf Part)

    KX-TG6700B/KX-TG6702B/KX-TGA670B 14.5. Circuit Board (Handset_RF Part)

  • Page 114: Circuit Board (Charger Unit)

    KX-TG6700B/KX-TG6702B/KX-TGA670B 14.6. Circuit Board (Charger Unit) 14.6.1. Component View PQLV30043 KX-TG57 PQUP11398Z WHITE CIRCUIT BOARD (Charger Unit (Component View)) 14.6.2. Flow Solder Side View PQUP11398Z KX-TG57 PQLV30043 CIRCUIT BOARD (Charger Unit (Flow Solder Side View))

  • Page 115: Appendix Information Of Schematic Diagram

    KX-TG6700B/KX-TG6702B/KX-TGA670B 15 Appendix Information of Schematic Diagram 15.1. CPU Data (Base Unit) 15.1.1. IC501 Description High High_Z 59 SP_LED D.I.O 60 GND Description High High_Z 61 VCC L2_LOUT1 62 INT0 (NC) LOUT0 63 FLASH_CLK High Middle 64 KEY_STB_F Active 65 KEY_STB_E...
  • Page 116 KX-TG6700B/KX-TG6702B/KX-TGA670B Description High High_Z 120 L2_LIN1 121 GNDA 122 CID IN0 123 CID IN1 124 VCCA 125 NC 126 NC 127 LIN0 128 L2_DCIN0 Note: • The mark “*” in the I/O column means the port is controlled by the firmware.

  • Page 117: Cpu Data (Handset)

    KX-TG6700B/KX-TG6702B/KX-TGA670B 15.2. CPU Data (Handset) 15.2.1. IC201 Description High High_Z 61 NC (LED_CTRL) 62 STB_E Active Description High High_Z 63 STB_D Active SPOUTP 64 STB_C Active BCLK 65 STB_B Active 66 STB_A Active RSSI 67 GND 68 VCC XOUT 69 TCK...

  • Page 118: Explanation Of Ic Terminals (Rf Part)

    KX-TG6700B/KX-TG6702B/KX-TGA670B 15.3. Explanation of IC Terminals (RF Part) 15.3.1. IC701...
  • Page 119 KX-TG6700B/KX-TG6702B/KX-TGA670B 15.3.2. IC801 Backside Terminal: GND...
  • Page 120 KX-TG6700B/KX-TG6702B/KX-TGA670B 15.3.3. IC851 Backside Terminal: GND...

  • Page 121: Terminal Guide Of The Ics, Transistors And Diodes

    KX-TG6700B/KX-TG6702B/KX-TGA670B 15.4. Terminal Guide of the ICs, Transistors and Diodes 15.4.1. Base Unit 15.4.2. Handset...

  • Page 122: Exploded View And Replacement Parts List

    KX-TG6700B/KX-TG6702B/KX-TGA670B 16 Exploded View and Replacement Parts List 16.1. Cabinet and Electrical Parts (Base Unit)

  • Page 123: Cabinet And Electrical Parts (Handset)

    KX-TG6700B/KX-TG6702B/KX-TGA670B 16.2. Cabinet and Electrical Parts (Handset) Note: (*1) Stick the magnetic shield (No. 124) to the exact location described above. (*2) Attach the cushion (No. 128) to the exact location described above.

  • Page 124: Cabinet And Electrical Parts (Charger Unit)

    KX-TG6700B/KX-TG6702B/KX-TGA670B 16.3. Cabinet and Electrical Parts (Charger Unit)

  • Page 125: Accessories And Packing Materials

    KX-TG6700B/KX-TG6702B/KX-TGA670B 16.4. Accessories and Packing Materials 16.4.1. KX-TG6700B...
  • Page 126 KX-TG6700B/KX-TG6702B/KX-TGA670B 16.4.2. KX-TG6702B...
  • Page 127 KX-TG6700B/KX-TG6702B/KX-TGA670B 16.4.3. KX-TGA670B...

  • Page 128: Replacement Parts List

    Q271 2SD0874AS TRANSISTOR(SI) PQQT23130Z LABEL, URL Q300 B1CHND000004 TRANSISTOR(SI) PQQT23193Z LABEL, CHARGE Q340 2SD1819A TRANSISTOR(SI) PQKM10717W2 CABINET BODY (for KX-TG6700B) PS-HB Q361 2SB1218A TRANSISTOR(SI) PQKM10717L2 CABINET BODY (for KX-TG6702B) PS-HB Q362 2SD1819A TRANSISTOR(SI) PFSA1060Z ANTENNA (R) (DIODES) PFSA1061Z ANTENNA (L)
  • Page 129 KX-TG6700B/KX-TG6702B/KX-TGA670B Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks D362 B0ECKM000008 DIODE(SI) R160 ERJ3GEYJ152 1.5K D472 MAZ805100L DIODE(SI) R162 ERJ3GEYJ393 D473 MAZ805100L DIODE(SI) R163 ERJ12YJ680 DA213 MA153 DIODE(SI) R164 ERJ3GEYJ470 DA214 MA153...
  • Page 130 KX-TG6700B/KX-TG6702B/KX-TGA670B Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks R340 ERJ3GEYJ123 C236 ECUV1C104KBV R341 ERJ3GEYJ182 1.8K C238 ECUV1C104KBV R342 ERJ3GEYJ473 C242 ECUV1H103KBV 0.01 R361 ERJ3GEYJ332 3.3K C252 ECUV1H220JCV R362 ERJ3GEYJ473 C261 EEE1EA100WR...
  • Page 131 KX-TG6700B/KX-TG6702B/KX-TGA670B 16.5.1.3. Operational P.C. Board Parts Ref. Part No. Part Name & Description Remarks C686 ECJ0EB1H331K 330P C687 ECJ0EB1H331K 330P Ref. Part No. Part Name & Description Remarks C688 ECJ0EB1H331K 330P C689 ECJ0EB1H331K 330P PCB2 PQWP2TG6700H OPERATIONAL P.C.BOARD ASS'Y (RTL)
  • Page 132 KX-TG6700B/KX-TG6702B/KX-TGA670B Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks R243 ERJ2GEJ274 270K R261 ERJ2GEJ820 PCB100 PQWPTG6700BR MAIN P.C.BOARD ASS'Y (RTL) R264 ERJ2GE0R00 (ICs) R286 ERJ2GEJ102 IC201 C2HBBY000040 IC (*1) R312 ERJ2GEJ222 2.2K...
  • Page 133 ECJ0EC1H020C (*1) You can download and refer to the Operating C773 ECJ0EC1H101J 100P Instructions (Instruction book) on TSN Server. C781 ECJ0EB1A104K C782 ECJ0EC1H121J 120P 16.5.4.1. KX-TG6700B C801 ECJ0EC1H030C C802 ECJ0EC1H220J C803 ECJ0EB1C103K 0.01 Ref. Part No. Part Name & Description...
  • Page 134 KX-TG6700B/KX-TG6702B/KX-TGA670B Ref. Part No. Part Name & Description Remarks XZB21X35A03 PROTECTION COVER (for Base Unit) XZB10X35A02 PROTECTION COVER (for Hand- set) PQPD10716Z CUSHION PQPK15311Z GIFT BOX PQXDDS400-8 PHOTO ELECTRIC TRANSDUCER, SECURITY TAG 16.5.4.2. KX-TG6702B Ref. Part No. Part Name & Description...

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