Panasonic KX-TG2340JXS Service Manual
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Panasonic KX-TG2340JXS Service Manual

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Telephone Equipment
KX-TG2340JXS
KX-TGA236JXS
Digital Cordless Answering System
Silver Version
(for Asia, Middle Near East and Other Areas)
© 2005 Panasonic Communications Co., Ltd. All
rights
reserved.
distribution is a violation of law.
ORDER NO. KM40505727CE
Unauthorized
copying
and

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Summary of Contents for Panasonic KX-TG2340JXS

  • Page 1 ORDER NO. KM40505727CE Telephone Equipment KX-TG2340JXS KX-TGA236JXS Digital Cordless Answering System Silver Version (for Asia, Middle Near East and Other Areas) © 2005 Panasonic Communications Co., Ltd. All rights reserved. Unauthorized copying distribution is a violation of law.

  • Page 2: Table Of Contents

    KX-TG2340JXS / KX-TGA236JXS Note: Because CONTENTS 4 to 9 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. CONTENTS Page Page 1 ABOUT LEAD FREE SOLDER (PbF: Pb free) 12 TROUBLESHOOTING GUIDE 1.1.
  • Page 3 KX-TG2340JXS / KX-TGA236JXS 17.7. Parallel Connection Detect Circuit 26 CABINET AND ELECTRICAL PARTS (Handset) 17.8. Calling Line Identification (Caller ID) 27 ACCESSORIES AND PACKING MATERIALS 18 BLOCK DIAGRAM (Handset) 28 TERMINAL GUIDE OF THE ICｴS, TRANSISTORS AND DIODES 19 CIRCUIT OPERATION (Handset) 19.1.

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

    KX-TG2340JXS / KX-TGA236JXS 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. We will use PbF solder when discussing the lead free solder used in our manufacturing process which is made from Tin (Sn), Silver (Ag), and Copper (Cu).

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

    KX-TG2340JXS / KX-TGA236JXS 1.2. How to recognize that Pb Free solder is used (Example: Handset P.C.B.) IC201 IC901 IC202 Marked (Component View) Note: The location of the “PbF” mark is subject to change without notice.

  • Page 6: For Service Technicians

    KX-TG2340JXS / KX-TGA236JXS 2 FOR SERVICE TECHNICIANS ICs and LSIs are vulnerable to static electricity. When repairing, the following precautions will help prevent recurring malfunctions. 1. Cover the plastic parts boxes with aluminum foil. 2. Ground the soldering irons. 3. Use a conductive mat on the worktable.

  • Page 7: Battery

    KX-TG2340JXS / KX-TGA236JXS 4 BATTERY 4.1. Standard Battery Life 4.1.1. Battery Charge 4.1.2. Battery Strength 4.1.3. 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-TG2340JXS / KX-TGA236JXS 4.1.4. Battery Information 4.2. Battery Replacement...

  • Page 9: Location Of Controls

    KX-TG2340JXS / KX-TGA236JXS 5 LOCATION OF CONTROLS 5.1. Base unit...

  • Page 10: Handset

    KX-TG2340JXS / KX-TGA236JXS 5.2. Handset...

  • Page 11: Displays

    KX-TG2340JXS / KX-TGA236JXS 6 DISPLAYS 6.1. Troubleshooting (Handset LCD) The following will be displayed when the unit needs your attention.

  • Page 12: Settings

    KX-TG2340JXS / KX-TGA236JXS 7 SETTINGS 7.1. Connections...

  • Page 13: Connecting An Optional Headset

    KX-TG2340JXS / KX-TGA236JXS 7.2. Connecting an Optional Headset...

  • Page 14: Function Menu Table

    KX-TG2340JXS / KX-TGA236JXS 7.3. Function Menu Table Cross Reference: Direct Commands (P.19)

  • Page 15: Date And Time

    KX-TG2340JXS / KX-TGA236JXS 7.4. Date and Time...

  • Page 16: Dialing Mode

    KX-TG2340JXS / KX-TGA236JXS 7.5. Dialing Mode 7.6. Line Mode...

  • Page 17: Voice Enhancer Technology

    KX-TG2340JXS / KX-TGA236JXS 7.7. Voice Enhancer Technology 7.8. Ringer Tone...
  • Page 18 KX-TG2340JXS / KX-TGA236JXS...

  • Page 19: Direct Commands

    KX-TG2340JXS / KX-TGA236JXS 7.9. Direct Commands...

  • Page 20: Operation

    KX-TG2340JXS / KX-TGA236JXS 8 OPERATION 8.1. Answering Calls...

  • Page 21: For Call Waiting Service Users

    KX-TG2340JXS / KX-TGA236JXS 8.2. For Call Waiting Service Users 8.3. Using the PAUSE Key...

  • Page 22: Dial Lock

    KX-TG2340JXS / KX-TGA236JXS 8.4. Dial Lock...
  • Page 23 KX-TG2340JXS / KX-TGA236JXS For Service Hint: *: If the current password is forgotten, enter “726276642” and you will be able to go to step 4.

  • Page 24: Flash Button

    KX-TG2340JXS / KX-TGA236JXS 8.5. FLASH Button...

  • Page 25: Phone Book

    KX-TG2340JXS / KX-TGA236JXS 8.6. Phone Book 8.6.1. Storing Names and Numbers...
  • Page 26 KX-TG2340JXS / KX-TGA236JXS...
  • Page 27 KX-TG2340JXS / KX-TGA236JXS 8.6.2. Dialing from the Phone Book...
  • Page 28 KX-TG2340JXS / KX-TGA236JXS 8.6.3. Chain Dial...
  • Page 29 KX-TG2340JXS / KX-TGA236JXS 8.6.4. Editing an Item in the Phone Book 8.6.5. Erasing an Item in the Phone Book...

  • Page 30: Troubleshooting

    KX-TG2340JXS / KX-TGA236JXS 9 TROUBLESHOOTING Cross Reference: (*1) Re-registering a Handset (P.41) (*5) Battery Charge (P.7) (*2) BATTERY (P.7) (*6) Recharge (P.7) (*3) Connections (P.12) (*7) Battery Replacement (P.8) (*4) Dialing Mode (P.16)
  • Page 31 KX-TG2340JXS / KX-TGA236JXS...
  • Page 32 KX-TG2340JXS / KX-TGA236JXS Cross Reference: (*8) Battery Charge (P.7) (*9) Battery Replacement (P.8) (*10) Recharge (P.7) (*11) Date and Time (P.15) (*12) Connecting an Optional Headset (P.13)

  • Page 33: Disassembly Instructions

    KX-TG2340JXS / KX-TGA236JXS 10 DISASSEMBLY INSTRUCTIONS 10.1. Base Unit Shown in Fig.- To Remove Remove Lower Cabinet Screws (2.6 × 14)..(A) × 5 Main P.C. Board Tape and Solder Screws (2.6 × 8)...(B) × 8...

  • Page 34: Handset

    KX-TG2340JXS / KX-TGA236JXS 10.2. Handset Shown in Fig.- To Remove Remove Rear Cabinet Screws (2.6 × 12)..(C) × 2 Follow the procedure. Main P.C. Board Tape and Solder Screw (2.6 × 12)..(D) × 1 Screws (2.6 × 9)..(E) × 2...

  • Page 35: Assembly Instructions

    KX-TG2340JXS / KX-TGA236JXS 11 ASSEMBLY INSTRUCTIONS 11.1. Fix the LCD to P.C. Board (Handset)

  • Page 36: Troubleshooting Guide

    KX-TG2340JXS / KX-TGA236JXS 12 TROUBLESHOOTING GUIDE Cross Reference: Check Power (P.37) Check Sp-phone Transmission (P.38) Check Sp-phone Reception (P.38) Check Battery Charge (P.39) Check Link (P.40) Check the RF Part (P.41) Check Handset Transmission (P.45) Check Handset Reception (P.45) Check Caller ID (P.45)

  • Page 37: Check Power

    KX-TG2340JXS / KX-TGA236JXS 12.1. Check Power Cross Reference: Note: Power Supply Circuit (P.65) DSP is IC501. Reset Circuit (P.67) 12.2. Error Message Table Symptom Remedy Blinking The initialization was tried, but it could not be done. 1. Check the peripheral circuit of Flash Memory visually.

  • Page 38: Check Sp-Phone Transmission

    KX-TG2340JXS / KX-TGA236JXS 12.3. Check Sp-phone Transmission Cross Reference: Note: Telephone Line Interface (P.68) Flash Memory is IC701. SIGNAL ROUTE (P.76) DSP is IC501. 12.4. Check Sp-phone Reception Cross Reference: Note: Telephone Line Interface (P.68) Flash Memory is IC701. SIGNAL ROUTE (P.76)

  • Page 39: Check Battery Charge

    KX-TG2340JXS / KX-TGA236JXS 12.5. Check Battery Charge Note: DSP is IC501.

  • Page 40: Check Link

    KX-TG2340JXS / KX-TGA236JXS 12.6. Check Link (*1) Refer to Finding Out the Defective Part (P.41). Cross Reference: RF Check Flowchart (P.42)

  • Page 41: Check The Rf Part

    KX-TG2340JXS / KX-TGA236JXS 12.7. Check the RF Part 12.7.1. 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). 12.7.1.1. Re-registering a Handset...
  • Page 42 KX-TG2340JXS / KX-TGA236JXS 12.7.2. 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.43)
  • Page 43 KX-TG2340JXS / KX-TGA236JXS 12.7.3. 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). 2. Press [Talk] key of the HS Regular Unit to 2.
  • Page 44 KX-TG2340JXS / KX-TGA236JXS 12.7.4. RF-DSP interface signal wave form...

  • Page 45: Check Handset Transmission

    KX-TG2340JXS / KX-TGA236JXS 12.8. Check Handset Transmission Cross Reference: SIGNAL ROUTE (P.76). 12.9. Check Handset Reception Cross Reference: SIGNAL ROUTE (P.76). Note: When checking the RF UNIT, Refer to Check the RF Part (P.41) 12.10. Check Caller ID Cross Reference: Telephone Line Interface (P.68).

  • Page 46: Test Mode

    KX-TG2340JXS / KX-TGA236JXS 13 TEST MODE 13.1. Test Mode Flow Chart for Base Unit 13.1.1. TX Burst Mode and Adjust X’tal Mode...
  • Page 47 KX-TG2340JXS / KX-TGA236JXS 13.1.2. RX-CW TEST Mode...
  • Page 48 KX-TG2340JXS / KX-TGA236JXS 13.1.3. Test Link Mode...

  • Page 49: Test Mode Flow Chart For Handset

    KX-TG2340JXS / KX-TGA236JXS 13.2. Test Mode Flow Chart for Handset 13.2.1. TX Burst Mode...
  • Page 50 KX-TG2340JXS / KX-TGA236JXS 13.2.2. RX-CW TEST Mode...
  • Page 51 KX-TG2340JXS / KX-TGA236JXS 13.2.3. Test Link Mode Note: (*1) LCD displays the Channel number. (exception: default/ CH00 = 1ch.)
  • Page 52 KX-TG2340JXS / KX-TGA236JXS 13.2.4. Adjustment flow (X’tal mode and Batt Low mode) Cross Reference (*1) Adjust Battery Low Detector Voltage (Handset) (P.53) Note: (*2) These are the default values. (*3) These values may not be fixed depending on the battery strength.

  • Page 53: X801 (Base Unit), X201 (Handset) Check

    KX-TG2340JXS / KX-TGA236JXS 13.3. X801 (Base Unit), X201 (Handset) Check Equipment: Frequency counter Check Point for measurement: BCK Checking tolerance: 13.824MHz ± 100Hz 13.3.1. Check and Adjust X801 (Base Unit) Frequency 1. Set up Base Unit in TEST mode. 2. Press following keys in order to Adjust Crystal mode. [INTERCOM], [INTERCOM], [INTERCOM], [1] or [2], [2], [2], [1] * Check BCK frequency.

  • Page 54: Base Unit Reference Drawing

    KX-TG2340JXS / KX-TGA236JXS FL901 RA705 LCD700 CN101 SA102 SA101 P101 IC701 Q800 L102 L101 FVCC FRST FCS FSI FGND RA501 Q105 Q104 Q103 IC501 LGS1 INT0 LOUT1 UVCC2 URX2 RA701 RA702 CPP2 KIN4 TTS1 UTX2 TTS2 Q161 UGND2 W_VDD W_GND...
  • Page 55 KX-TG2340JXS / KX-TGA236JXS SG out Q350 ANT1 ANTG1 STOP LCD700 MEMO SKIP ICOM MUTE SPP1 SPM1 URX1 UTX1 UGND1 UVCC1...
  • Page 56 KX-TG2340JXS / KX-TGA236JXS...

  • Page 57: Frequency Table

    KX-TG2340JXS / KX-TGA236JXS 13.7. 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 2459.587939 2403.591943 2403.402100 2460.671631 2460.481787 2404.481836 2404.291992 2461.561523...

  • Page 58: How To Clear User Setting

    KX-TG2340JXS / KX-TGA236JXS 13.8. 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. 13.8.1. Base unit 13.8.2.

  • Page 59: Description

    KX-TG2340JXS / KX-TGA236JXS 14 DESCRIPTION 14.1. 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. 14.2. 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 60 KX-TG2340JXS / KX-TGA236JXS 14.2.1. TDD Frame Format 14.2.2. TDMA system This system is the cycles of 10ms, and has four duplex paths, so it is possible to perform four duplex communications simultaneously. In 1 slot 1.25ms, the 10ms of voice data is transmitted.

  • Page 61: Signal Flowchart In The Whole System

    KX-TG2340JXS / KX-TGA236JXS 14.3. 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). The DSP encodes ADPCM and TDD/TDMA with FHSS to TX-DATA.

  • Page 62: Explanation Of Link Data Communication

    KX-TG2340JXS / KX-TGA236JXS 15 EXPLANATION OF LINK DATA COMMUNICATION 15.1. Calling 15.2. To Terminate Communication 15.3. Ringing...

  • Page 63: Block Diagram (Base Unit)

    KX-TG2340JXS / KX-TGA236JXS...

  • Page 64: Circuit Operation (Base Unit)

    KX-TG2340JXS / KX-TGA236JXS 17 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 65: Flash Memory (Ic701)

    KX-TG2340JXS / KX-TGA236JXS 17.1.2. The Meaning of the Motion of Pin 128 · The period of Host Power Up (Hardware Initialization) In this period, the host sets up some registers in order to wake up the system. · The period of Host Reset (Software Initialization) In this period, the host reads the parameter from the memory and initializes module.
  • Page 66 KX-TG2340JXS / KX-TGA236JXS 17.3.1. 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 67: Reset Circuit

    KX-TG2340JXS / KX-TGA236JXS 17.4. 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 68: Locator/Intercom Mode

    KX-TG2340JXS / KX-TGA236JXS 17.5. Locator/Intercom Mode 1. Press the base LOCATOR/INTERCOM button, then a beep is output from pins 35 and 37 of IC501, and blinks on the SP- PHONE LED (LED 721) is caused by pin 15 of IC501.

  • Page 69: Parallel Connection Detect Circuit

    KX-TG2340JXS / KX-TGA236JXS 17.7. 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 70: Calling Line Identification (Caller Id)

    KX-TG2340JXS / KX-TGA236JXS 17.8. Calling Line Identification (Caller ID) Function: 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 71: Block Diagram (Handset)

    KX-TG2340JXS / KX-TGA236JXS 18 BLOCK DIAGRAM (Handset) IC202 D213 MOD_EN RXGAIN RSTN D207 D208 IC205 D205 D206 IC203 VBATT2 3.0V IC201 HSMIP HSMIN INT_1 INT 1 IC204 2.5V KX-TGA236 BLOCK DIAGRAM (Handset)

  • Page 72: Circuit Operation (Handset)

    KX-TG2340JXS / KX-TGA236JXS 19 CIRCUIT OPERATION (Handset) 19.1. Construction The circuit mainly consists of DSP and RF unit as shown in the block diagram. 19.1.1. DSP:IC201 19.1.1.1. Function · Battery Low, Power down defect circuit · Ringer Generation · Interface circuit RF unit, speaker, mic, LED, Key scan, LCD, Headset 19.1.1.2.

  • Page 73: Power Supply Circuit

    KX-TG2340JXS / KX-TGA236JXS 19.2. Power Supply Circuit Voltage is supplied separately to each block. Block Diagram (Handset Power) KEY, BACK +3.6V BATTERY LIGHT BATT+ +3.6V BATT- LEDS Q207 +3.0V REG +3.0V IC203 IC201 CHARGE1 D213 EEPROM IC202 D207 D208 Q212...

  • Page 74: Charge Circuit

    KX-TG2340JXS / KX-TGA236JXS 19.3. Charge Circuit When the handset is put on the cradle of the Base unit, 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 -> R248 -> Q207 ->...

  • Page 75: Sending Signal

    KX-TG2340JXS / KX-TGA236JXS 19.5. 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 76: Signal Route

    KX-TG2340JXS / KX-TGA236JXS 20 SIGNAL ROUTE Each signal route is as follows.

  • Page 77: Cpu Data (Base Unit)

    KX-TG2340JXS / KX-TGA236JXS 21 CPU DATA (Base Unit) 21.1. IC501 Description High High_Z Description High High_Z INT0 63 TXMOD 64 VREFR L1_BELL 65 RSSI L1_RLY Off Hook On Hook 66 VCCR AC_DOWN High 67 GNDPLL _DET 68 VCCPLL KEY_STB_F Active...

  • Page 78: Cpu Data (Handset)

    KX-TG2340JXS / KX-TGA236JXS Note: Description High High_Z 125 VCC · The mark “*” in the I/O column means the port is 126 NC controlled by the firmware. 127 FLASH_SCK High Middle · Data in the blank columns are omitted because of the...

  • Page 79: Explanation Of Ic Terminals (Rf Unit)

    KX-TG2340JXS / KX-TGA236JXS 23 EXPLANATION OF IC TERMINALS (RF Unit) 23.1. IC901...

  • Page 80: How To Replace The Flat Package Ic

    KX-TG2340JXS / KX-TGA236JXS 24 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 81: Flat Package Ic Installation Procedure

    KX-TG2340JXS / KX-TGA236JXS 24.3. FLAT PACKAGE IC INSTALLATION PROCEDURE 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 82: Cabinet And Electrical Parts (Base Unit)

    KX-TG2340JXS / KX-TGA236JXS 25 CABINET AND ELECTRICAL PARTS (Base Unit)

  • Page 83: Cabinet And Electrical Parts (Handset)

    KX-TG2340JXS / KX-TGA236JXS 26 CABINET AND ELECTRICAL PARTS (Handset)

  • Page 84: Accessories And Packing Materials

    KX-TG2340JXS / KX-TGA236JXS 27 ACCESSORIES AND PACKING MATERIALS...

  • Page 85: Terminal Guide Of The IcｴS, Transistors And Diodes

    KX-TG2340JXS / KX-TGA236JXS 28 TERMINAL GUIDE OF THE IC´S, TRANSISTORS AND DIODES 28.1. Base Unit 28.2. Handset...

  • Page 86: Replacement Parts List

    KX-TG2340JXS / KX-TGA236JXS 29 REPLACEMENT PARTS Ref. Part No. Part Name & Description Remarks PQAS5P13Y SPEAKER LIST PQBC10404V1 BUTTON, MESSAGE AS-HB PQHR11030Z GUIDE, LED ABS-HB Note: PQSA10098R ANTENNA PQSX10260Z KEYBOARD SWITCH, VM 1. RTL (Retention Time Limited) PQSX10261V KEYBOARD SWITCH, DIAL...
  • Page 87 KX-TG2340JXS / KX-TGA236JXS Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks L402 G1C6R8MA0072 COIL R516 ERJ2GEJ151 L501 PQLQR2KA213 COIL R543 ERJ2GEJ472X 4.7K L901 MQLRE18NJFA COIL R570 ERJ2GEJ473 L903 MQLRF4N7DFB COIL R571 ERJ3GEYJ123...

  • Page 88: Handset

    KX-TG2340JXS / KX-TGA236JXS Ref. Part No. Part Name & Description Remarks 29.2. Handset C510 F1G1A1040003 29.2.1. Cabinet and Electrical Parts C511 F1G1A1040003 C512 F1G1A1040003 Ref. Part No. Part Name & Description Remarks C553 F1G1A1040003 C554 F1G1A1040003 PQGG10254Z1 GRILLE, LCD ABS-HB...
  • Page 89 KX-TG2340JXS / KX-TGA236JXS Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks D217 MA8047 DIODE(SI) R268 ERJ3GEYJ102 D218 MA8047 DIODE(SI) R269 ERJ3GEYJ102 D219 MA8047 DIODE(SI) R270 ERJ3GEYJ102 D220 MA8047 DIODE(SI) R275 ERJ2GEJ104 100K...

  • Page 90: Accessories And Packing Materials

    KX-TG2340JXS / KX-TGA236JXS Ref. Part No. Part Name & Description Remarks C309 F1G1A1040003 C311 ECJ0EC1H030C C312 F1G1A1040003 C901 ECJ0EC1H100D C903 ECJ0EC1H100D C904 ECJ0EC1H010C C910 ECJ0EC1H010C C911 ECJ0EC1H100D C915 ECJ0EC1H100D C917 ECJ0EC1H100D C918 ECJ0EC1H100D C921 ECJ0EC1H100D C922 ECJ0EC1H100D C937 ECUE1H471KBQ 470P...

  • Page 91: For Schematic Diagram

    KX-TG2340JXS / KX-TGA236JXS 30 FOR SCHEMATIC DIAGRAM 30.1. 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 92: Schematic Diagram (Base Unit)

    KX-TG2340JXS / KX-TGA236JXS 31 SCHEMATIC DIAGRAM (Base Unit) RF UNIT I/F PAD IC601 2.5V REG 2.5V VOUT C618 Cont K470P C763 RADIO_EN C774 C778 C773 C772 C770 C771 C769 R807 C768 C767 C762 C761 RSSI1 TXD2 C812 R805 K0.1 Q800...
  • Page 93 KX-TG2340JXS / KX-TGA236JXS D351 4.0V CONVERTOR 4.0Voutput 300kHz (or 500kHz) 4.0V Q301 D305 L302 22uH 9~11V L301 REFERENCE 1XX : LINE 3XX : POWER, CHARGE, RESET, PDWN DET X01- :POWER SUPPLY VCC 3.3V X21- :CHARGE D301 X41- :RESET,POW DOWN 5 VOUT...

  • Page 94: Schematic Diagram (Handset)

    KX-TG2340JXS / KX-TGA236JXS 32 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 OSC_IN R321 (10) (11) RA201 MOD_EN C324 C321 IC206 4.7K...
  • Page 95 KX-TG2340JXS / KX-TGA236JXS 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 (17) MICM 81 RF_RESET VCCPLL C214 K0.1 -45dBm...
  • Page 96 KX-TG2340JXS / KX-TGA236JXS...
  • Page 97 KX-TG2340JXS / KX-TGA236JXS C911 D904 L913 FL901 C913 D903 L904 C904 C910 R903 L901 R992 R991 RA705 LCD700 CN101 SA102 SA101 P101 IC701 Q800 L102 L101 FVCC FRST FCS FSI FGND RA501 Q105 Q104 Q103 IC501 LGS1 INT0 LOUT1 UVCC2...
  • Page 98 KX-TG2340JXS / KX-TGA236JXS Q350 ANT1 ANTG1 STOP LCD700 MEMO SKIP DCP2 DCM2 ICOM MUTE SPP1 SPM1 URX1 UTX1 UGND1 UVCC1...
  • Page 99 KX-TG2340JXS / KX-TGA236JXS...
  • Page 100 KX-TG2340JXS / KX-TGA236JXS...
  • Page 101 KX-TG2340JXS / KX-TGA236JXS M.T/N KXTG2340JXS KXTGA236JXS...

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