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Panasonic KX-TG2343F Service Manual
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Panasonic KX-TG2343F Service Manual

Panasonic KX-TG2343F Service Manual

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Telephone Equipment
KX-TG2343F
KX-TG2343P
KX-TG2343W
KX-TGA233F
KX-TGA233P
KX-TGA233W
2.4GHz
Digital
System
Blue Version
Taupe Version
White Version
(for U.S.A.)
© 2004 Panasonic Communications Co., Ltd. All
rights
reserved.
distribution is a violation of law.
ORDER NO. KM40401326C1
Cordless
Answering
Unauthorized
copying
F12
and

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Summary of Contents for Panasonic KX-TG2343F

  • Page 1 ORDER NO. KM40401326C1 Telephone Equipment KX-TG2343F KX-TG2343P KX-TG2343W KX-TGA233F KX-TGA233P KX-TGA233W 2.4GHz Digital Cordless Answering System Blue Version Taupe Version White Version (for U.S.A.) © 2004 Panasonic Communications Co., Ltd. All rights reserved. Unauthorized copying distribution is a violation of law.

  • Page 2: Table Of Contents

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W Note: Because CONTENTS 2 to 7 are the extracts from the Operating Instructions of this model, they are subject to change without notice. Please refer to the original Operating Instructions for further information.
  • Page 3 KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 10.2. Error Message Table 17.3. Charge Circuit 10.3. Check Record 17.4. Ringer and Handset SP-Phone 10.4. Check Playback 17.5. Sending Signal 10.5. Check Battery Charge 17.6. Reception Signal 10.6. Check Link 18 SIGNAL ROUTE 10.7.

  • Page 4: About Lead Free Solder (Pbf: Pb Free)

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 1 ABOUT LEAD FREE SOLDER (PbF: Pb free) Note: In the information below, Pb, the symbol for lead in the periodic table of elements, will refer to standard solder or solder that contains lead.

  • Page 5: How To Recognize That Pb Free Solder Is Used

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 1.2. How to recognize that Pb Free solder is used 1.2.1. Base Unit PCB 1.2.1.1. Main IC901 IC601 IC701 IC501 IC521 Marked (Component View) Marked IC201 IC300 IC301 (Flow Solder Side View) Note: The location of the “PbF“...
  • Page 6 KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 1.2.1.2. Operation Marked (Flow Solder Side View) Note: The location of the “PbF“ mark is subject to change without notice. 1.2.2. Cordless Handset PCB IC204 IC201 IC901 IC202 IC203...

  • Page 7: Battery

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 2 BATTERY 2.1. Standard Battery Life 2.1.1. Battery Charge 2.1.2. Battery Strength 2.1.3. Recharge Note for service: The battery strength may not be indicated correctly if the battery is disconnected and connected again, even after it is fully...

  • Page 8: Battery Replacement

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 2.1.4. Battery Information 2.2. Battery Replacement...

  • Page 9: Location Of Controls

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 3 LOCATION OF CONTROLS 3.1. Base unit...

  • Page 10: Handset

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 3.2. Handset...

  • Page 11: Displays

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 4 DISPLAYS 4.1. Base Unit Display...

  • Page 12: Troubleshooting (Handset Lcd)

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 4.2. Troubleshooting (Handset LCD) The following will be displayed when the unit needs your attention.

  • Page 13: Settings

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 5 SETTINGS 5.1. Connections 5.2. Connecting an Optional Headset...

  • Page 14: Function Menu Table

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 5.3. Function Menu Table...

  • Page 15: Date And Time

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 5.4. Date and Time...

  • Page 16: Display Language

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 5.5. Display Language 5.6. Dialing Mode...

  • Page 17: Line Mode

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 5.7. Line Mode 5.8. Voice Enhancer Technology...

  • Page 18: Ringer Tone

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 5.9. Ringer Tone...

  • Page 19: Direct Commands

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 5.10. Direct Commands...

  • Page 20: Operation

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 6 OPERATION 6.1. Answering System 6.1.1. Greeting Message...
  • Page 21 KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 6.1.2. Caller’s Recording Time...
  • Page 22 KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 6.1.3. Message Alert...
  • Page 23 KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 6.1.4. Erasing Messages...

  • Page 24: For Call Waiting Service Users

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 6.2. For Call Waiting Service Users 6.3. Using the PAUSE Key...

  • Page 25: Flash Button

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 6.4. FLASH Button...

  • Page 26: Remote Operation From A Touch Tone Phone

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 6.5. Remote Operation from a Touch Tone Phone 6.5.1. Remote Code...
  • Page 27 KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 6.5.2. Voice Menu...
  • Page 28 KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 6.5.3. Direct Remote Operation...

  • Page 29: Phone Book

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 6.6. Phone Book 6.6.1. Storing Names And Numbers...
  • Page 30 KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W...
  • Page 31 KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 6.6.2. Dialing from the Phone Book...
  • Page 32 KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 6.6.3. Chain Dial...
  • Page 33 KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 6.6.4. Editing an Item in the Phone Book 6.6.5. Erasing an Item in the Phone Book...

  • Page 34: Troubleshooting

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 7 TROUBLESHOOTING Cross Reference: (*1)Re-registering a Handset (P.46) (*2)Battery Charge (P.7)
  • Page 35 KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W Cross Reference: (*3)Message Alert (P.22) (*4)Connecting an Optional Headset (P.13)
  • Page 36 KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W Cross Reference: (*5)Caller’s Recording Time (P.21) (*6)Erasing Messages (P.23) (*7)Remote Code (P.26) (*8)Date and Time (P.15)
  • Page 37 KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W Cross Reference: (*9)BATTERY (P.7) (*10)Connections (P.13) (*11)Dialing Mode (P.16) (*12)Battery Charge (P.7) (*13)Recharge (P.7) (*14)Battery Replacement (P.8)

  • Page 38: Disassembly Instructions

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 8 DISASSEMBLY INSTRUCTIONS 8.1. Base Unit Shown in Fig.- To Remove Remove Lower Cabinet Screws (2.6 × 12)..(A) × 4 Main P.C. Board Tape and Solder Screws (2.6 × 8)...(B) × 3 Operational P.C.

  • Page 39: Handset

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 8.2. Handset Shown in Fig.- To Remove Remove Rear Cabinet Screws (2.6 × 12)..(D) × 2 Rear Cabinet Follow the procedure. Main P.C. Board Tape and Solder Screw (2.6 × 12)..(E) × 1 Screws (2.6 ×...

  • Page 40: Assembly Instructions

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 9 ASSEMBLY INSTRUCTIONS 9.1. Fix the LCD to P.C. Board (Handset)

  • Page 41: Troubleshooting Guide

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 10 TROUBLESHOOTING GUIDE Cross Reference: Note: Check Power (P.42) (*1) When a user claims that the unit disconnects a call right after the greeting message and no incoming messages can Error Message Table (P.42)

  • Page 42: Check Power

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 10.1. Check Power Cross Reference: NOTE: Power Supply Circuit (P.70) DSP is IC501. Reset Circuit (P.72) 10.2. Error Message Table Display Symptom Remedy The initialization was tried, but it could not be done.

  • Page 43: Check Record

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 10.3. Check Record 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.To solve this problem, try changing the Auto Disconnect activation (time)

  • Page 44: Check Playback

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 10.4. Check Playback Cross Reference: NOTE: Power Supply Circuit (P.70) Flash Memory is IC701. DSP is IC501. 10.5. Check Battery Charge NOTE: DSP is IC501.

  • Page 45: Check Link

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 10.6. Check Link (*1) Refer to Finding Out the Defective Part (P.46). Cross Reference: RF Check Flowchart (P.47)

  • Page 46: Check The Rf Part

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 10.7. Check the RF Part 10.7.1. Finding Out the Defective Part After All the Checkings or Repairing Re-register Handset (to be checked) to Base Unit (to be checked) and HS to BU Regular unit (working).
  • Page 47 KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 10.7.2. RF Check Flowchart Each item (1a ~5) of RF Check Flowchart corresponds to Check Table for RF part. Please refer to the each item. Cross Reference: Check Table for RF part (P.48)
  • Page 48 KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 10.7.3. Check Table for RF part Item BU checking HS checking 1a Link confirmation Normal 1. Re-resister HS Regular Unit (working) to BU. 1. Re-resister HS to BU of Regular Unit (working).
  • Page 49 KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 10.7.4. RF-DSP interface signal wave form...

  • Page 50: Check Handset Transmission

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 10.8. Check Handset Transmission Cross Reference: SIGNAL ROUTE (P.83). 10.9. Check Handset Reception Cross Reference: SIGNAL ROUTE (P.83). NOTE: When checking the RF UNIT, Refer to Check the RF Part (P.46)

  • Page 51: Test Mode

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 11 TEST MODE 11.1. Test Mode Flow Chart for Base Unit 11.1.1. TX Burst Mode and Adjust X’tal Mode...
  • Page 52 KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 11.1.2. RX-CW TEST Mode...
  • Page 53 KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 11.1.3. Test Link Mode...

  • Page 54: Test Mode Flow Chart For Handset

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 11.2. Test Mode Flow Chart for Handset 11.2.1. TX Burst Mode...
  • Page 55 KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 11.2.2. RX-CW TEST Mode...
  • Page 56 KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 11.2.3. Test Link Mode Note: (*1) LCD displays the Channel number. (exception: default/ CH00 = 1ch.)
  • Page 57 KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 11.2.4. Adjustment flow (X’tal mode and Batt Low Mode) Cross Reference (*1) Adjustment Battery Low Detector Voltage (Handset) (P.58) NOTE: (*2) These are the default values. (*3) These values may not be fixed depending on the battery strength.

  • Page 58: X801 (Base Unit), X201 (Handset) Check

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 11.3. X801 (Base Unit), X201 (Handset) Check Equipment: Frequency counter Check Point for measurement: BCK Checking tolerance: 13.824MHz ± 100Hz 11.3.1. Check and Adjustment X801 (Base Unit) Frequency 1. Set up Base Unit in TEST mode.

  • Page 59: Base Unit Reference Drawing

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W SG out...
  • Page 60 KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W...

  • Page 61: Frequency Table

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 11.7. FREQUENCY TABLE Channel TX/RX Frequency TEST MODE Frequency Channel TX/RX Frequency TEST MODE Frequency (MHz) (MHz) (MHz) (MHz) 2400.914355 2400.724512 2457.994043 2457.804199 2401.808203 2401.618359 2458.887891 2458.698047 2402.698096 2402.508252 2459.777783...

  • Page 62: How To Clear User Setting

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 11.8. How to Clear User Setting The operation reset the unit to Factory setting. (Erase recording Voice messages, Stored phone numbers, Caller list and etc.) This operation should not be performed for a usual repair.

  • Page 63: Description

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 12 DESCRIPTION 12.1. Frequency The frequency range of 2400MHz~2480MHz is used. Transmitting and receiving channel between base unit and handset is same frequency. Refer to the Frequency Table. 12.2. 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 cordless telephone system that can use multiple portable unit simultaneously.
  • Page 64 KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 12.2.1. TDD Frame Format 12.2.2. TDMA system This system is the cycles of 10ms, and has four duplex paths, so it is possible to perform four duplex communications simultaneously.

  • Page 65: Signal Flowchart In The Whole System

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 12.3. Signal Flowchart in the Whole System Reception CN101 of the base unit is connected to the TEL line, and signal is entered through the bridge diode D101. While talking, the relay (Q104) is turned ON and amplified at the Q150, then led to DSP (IC501).

  • Page 66: Explanation Of Link Data Communication

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 13 EXPLANATION OF LINK DATA COMMUNICATION 13.1. Calling 13.2. To Terminate Communication 13.3. Ringing...

  • Page 67: Block Diagram (Base Unit)

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W...

  • Page 68: Circuit Operation (Base Unit)

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 15 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.

  • Page 69: Flash Memory (Ic701)

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 15.1.2. The Meaning of the Motion of Pin 100 • • • • The period of Host Power Up (Hardware Initialization) In this period, the host sets up some registers in order to wake up the system.

  • Page 70: Power Supply Circuit

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 15.3. Power Supply Circuit Function: The power supply voltage from AC adaptor is converted to the desired voltage of each block. Circuit Operation: • • • • IC301, Q301 and D303: 4.0V DCDC Converter •...
  • Page 71 KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 15.3.1. Charge Circuit The voltage from the AC is supplied to the charge circuits. Normal charge of maximum 6-hours is started soon after the Handset is placed on the base unit. Then it changes to Trickle charge to prevent from overcharging.

  • Page 72: Reset Circuit

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 15.4. 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 IC300 and power is supplied to the DSP.

  • Page 73: Locator Mode

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 15.5. Locator Mode 1. Press the base LOCATOR button, then a beep is output from pins 29 and 31 of IC501, and blinks on the display [IN USE] (LED) is caused by IC501.

  • Page 74: Auto Disconnect Circuit

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 15.7. 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 a receiving status or OGM transmitting status.

  • Page 75: Parallel Connection Detect Circuit

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 15.8. Parallel Connection Detect 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 76: Calling Line Identification (Caller Id)/Call Waiting Caller Id

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 15.9. 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.
  • Page 77 KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 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 78: Block Diagram (Handset)

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 16 BLOCK DIAGRAM (Handset) IC202 D213 MOD_EN RXGAIN RSTN D207 D208 IC205 D205 D206 IC203 VBATT2 3.0V IC201 HSMIP HSMIN IC204 2.5V KX-TGA233F/P/W BLOCK DIAGRAM (Handset)

  • Page 79: Circuit Operation (Handset)

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 17 CIRCUIT OPERATION (Handset) 17.1. Construction The circuit mainly consists of DSP and RF unit as shown in the block diagram. 17.1.1. DSP:IC201 17.1.1.1. Function • • • • Battery Low, Power down defect circuit •...

  • Page 80: Power Supply Circuit

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 17.2. Power Supply Circuit Voltage is supplied separately to each block.

  • Page 81: Charge Circuit

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 17.3. Charge Circuit When the handset is put on the cradle of the Base unit or the optional charger, the power is supplied from CHARGE2 and CHARGE1 terminals to charge the battery via D205 (D207), R268, Q212. The voltage between CHARGE2 and CHARGE1 flows D213 ->...

  • Page 82: Sending Signal

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 17.5. Sending Signal The voice signal from the microphone input to DSP (42-43). CN203 is the headset jack. When the headphone is connected, the Q206 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 (39).

  • Page 83: Signal Route

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 18 SIGNAL ROUTE Each signal route is as follows.

  • Page 84: Cpu Data (Base Unit)

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 19 CPU DATA (Base Unit) 19.1. IC501 Description High High_Z Description High High_Z INT0 56 FLASH_RST High Middle NOT_RLY On Hook Off Hook 57 TX_OUT High BELL 58 MOD_EN...

  • Page 85: Cpu Data (Handset)

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 20 CPU DATA (Handset) 20.1. IC201 Description High High_Z Description High High_Z Normal 51 XOUT Normal 52 XIN DOT_LCD_RS Data Instruct 53 GND DOT_LCD_RW_ Read Write 54 RESET Normal...

  • Page 86: Explanation Of Ic Terminals (Rf Unit)

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 21 EXPLANATION OF IC TERMINALS (RF Unit) 21.1. IC901...

  • Page 87: How To Replace Aflat Package Ic

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 22.3. Removing Solder from 22 HOW TO REPLACE A Between Pins FLAT PACKAGE IC 1. Add a small amount of solder to the bridged pins. 22.1. Preparation 2. With a hot iron, use a sweeping motion along the flat part of the pin to draw the solder from between the adjacent pads.

  • Page 88: Cabinet And Electrical Parts (Base Unit)

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 23 CABINET AND ELECTRICAL PARTS (Base Unit)

  • Page 89: Cabinet And Electrical Parts (Handset)

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 24 CABINET AND ELECTRICAL PARTS (Handset)

  • Page 90: Accessories And Packing Materials

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 25 ACCESSORIES AND PACKING MATERIALS...

  • Page 91: Terminal Guide Of The Ic´s, Transistors And Diodes

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 26 TERMINAL GUIDE OF THE IC´S, TRANSISTORS AND DIODES 26.1. Base Unit 26.2. Handset...

  • Page 92: Replacement Parts List

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 27 REPLACEMENT PARTS Ref. Part No. Part Name & Description Remarks PQBC10399Z1 BUTTON, MESSAGE AS-HB LIST PQHR11024Z LED LENS, CHARGE PQHR11025Z LED LENS, ANSWER ON Note: PQHR11023Z GUIDE, LED...
  • Page 93 KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks D903 B0DCCD000011 DIODE(SI) R351 PQ4R10XJ120 D904 B0DCCD000011 DIODE(SI) R352 ERJ2GEJ391 DA101 MA147 DIODE(SI)

  • Page 94: Handset

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks C308 F2G1E1010011 L0CBAB000052 MICROPHONE C309 ECUE1A104KBQ PQMC10471Z MAGNETIC SHIELD, FRAME C310 F1G0J1050007 PQMC10472Z...
  • Page 95 KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks PQHX11247Z PLASTIC PARTS, BATTERY COVER CA201 F5A421030002 CAPACITOR ARRAY SHEET CA202 F5A424740002 CAPACITOR ARRAY...

  • Page 96: Accessories And Packing Materials

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks C213 EEE0GA331WP C984 ECUE1H1R5CCQ 1.5P C214 ECUE1A104KBQ C990 ECUE1H102KBQ 0.001 C215 ECUE1C103KBQ 0.01...

  • Page 97: For Schematic Diagram

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 28 FOR SCHEMATIC DIAGRAM 28.1. Base Unit (SCHEMATIC DIAGRAM (Base Unit)) Notes: 1. DC voltage measurements are taken with voltmeter from the negative voltage line. 2. This schematic diagram may be modified at any time with the development of new technology.

  • Page 98: Schematic Diagram (Base Unit)

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 29 SCHEMATIC DIAGRAM (Base Unit) D351 2AP_VCC IC601 VBATT_2 2.5V 2.5VREG RF VBATT2 ANTG1 ANT1 Vout DMOD1 ANTG2 ANT2 C518 C621 Cont C623 K470P C624 C625 C626 100P C627...
  • Page 99 KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 4.0V 4.0V CONVERTOR 300kHz (or 500kHz) D305 4.0V output L301 Q301 L302 22uH VOUT D301 VDET CHARGE PAD D381 L377 RESET 6.8u R381 3.3K L376 R382 IC300 Q381 Q382 6.8u...

  • Page 100: Schematic Diagram (Handset)

    KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W 30 SCHEMATIC DIAGRAM (Handset) -16.5dBm OUT CN203 L206 C225 6V22 R232 HEADSET-DET Q206 MIC2 MIC1 L204 TP_ANT L205 -45dBm IN HEADSET-JACK HANDSET SP R226 RSSI TX_DATA R227 (10) OSC_IN...
  • Page 101 KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W RSSI C312 K0.1 L202 NC R276 560 R286 Q204 L203 NC 3.0V X201 13.824MHz R295 NC (10) (11) R242 R241 (12) (13) R222 (14) (15) (16) CHARGE_DET C216 C303...
  • Page 102 KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W...
  • Page 103 KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W...
  • Page 104 KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W...
  • Page 105 KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W CN101 D904 C911 L913 FL901 C913 D903 L101 L904 C904 C910 R903 L901 L102 R992 R991 Q104 Q161 C167 Q350 KIN2 KIN1 KIN3 INT0 DVCC JC R JS Y...
  • Page 106 KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W...
  • Page 107 KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W L5CD01 23 22 13 11 GCHK GREC LED11 STOP ERASE SKIP 6 3 2 7 LED12 DOWN MICP MICM...
  • Page 108 KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W...
  • Page 109 KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W...
  • Page 110 KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W...
  • Page 111 KX-TG2343F / KX-TG2343P / KX-TG2343W / KX-TGA233F / KX-TGA233P / KX-TGA233W I.N. KXTG2343F KXTG2343P KXTG2343W KXTGA233F KXTGA233P KXTGA233W...

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