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Panasonic KX-TG2224F Service Manual
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Panasonic KX-TG2224F Service Manual

Panasonic KX-TG2224F Service Manual

2.4ghz digital cordless answering system
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Telephone Equipment
KX-TG2224F
KX-TG2224P
KX-TG2224W
2.4GHz
Digital
System
Blue Version
Taupe Version
White Version
(for U.S.A.)
© 2003 Panasonic Communications Co., Ltd. All
rights
reserved.
distribution is a violation of law.
ORDER NO. KM40303045C1
Cordless
Answering
Unauthorized
copying
F12
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  • Page 1 ORDER NO. KM40303045C1 Telephone Equipment KX-TG2224F KX-TG2224P KX-TG2224W 2.4GHz Digital Cordless Answering System Blue Version Taupe Version White Version (for U.S.A.) © 2003 Panasonic Communications Co., Ltd. All rights reserved. Unauthorized copying distribution is a violation of law.

  • Page 2: Table Of Contents

    KX-TG2224F / KX-TG2224P / KX-TG2224W CONTENTS Page Page 1 ABOUT LEAD FREE SOLDER (PbF: Pb free) 12.4. Check Playback 1.1. Suggested PbF Solder 12.5. Check Battery Charge 1.2. How to recognize that Pb Free solder is used (at KX- 12.6. Check Link TG2224F/P/W) 12.7.
  • Page 3 KX-TG2224F / KX-TG2224P / KX-TG2224W 19.3. Charge Circuit 28.1. Base Unit 19.4. Ringer and Handset SP-Phone 28.2. Handset 19.5. Sending Signal 29 REPLACEMENT PARTS LIST 19.6. Reception Signal 29.1. Base Unit 19.7. Small P.C.B. 29.2. Handset 20 SIGNAL ROUTE 30 FOR SCHEMATIC DIAGRAM 21 CPU DATA (Base Unit) 30.1.

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

    KX-TG2224F / KX-TG2224P / KX-TG2224W 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 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-TG2224F / KX-TG2224P / KX-TG2224W 1.2. How to recognize that Pb Free solder is used (at KX-TG2224F/P/W) 1.2.1. Base Unit 1.2.1.1. Main Marked IC201 (Component View) 1.2.1.2. Operation Marked LCD900 LCD900 ANS1 ANS2 STOP SKIP 21 23 25 26 29 27...

  • Page 6: For Service Technicians

    KX-TG2224F / KX-TG2224P / KX-TG2224W 1.2.2. Handset Marked IC201 (Component View) 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.

  • Page 7: Battery

    KX-TG2224F / KX-TG2224P / KX-TG2224W 4 BATTERY 4.1. Installing the Battery in the Handset 4.2. Battery Charge 4.3. Battery 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 charged.

  • Page 8: Battery Replacement

    KX-TG2224F / KX-TG2224P / KX-TG2224W 4.5. Battery Replacement 4.6. Battery information...

  • Page 9: Location Of Controls

    KX-TG2224F / KX-TG2224P / KX-TG2224W 5 LOCATION OF CONTROLS 5.1. Base Unit...

  • Page 10: Handset

    KX-TG2224F / KX-TG2224P / KX-TG2224W 5.2. Handset...

  • Page 11: Display

    KX-TG2224F / KX-TG2224P / KX-TG2224W 6 DISPLAY 6.1. Troubleshooting...
  • Page 12 KX-TG2224F / KX-TG2224P / KX-TG2224W...
  • Page 13 KX-TG2224F / KX-TG2224P / KX-TG2224W...
  • Page 14 KX-TG2224F / KX-TG2224P / KX-TG2224W...

  • Page 15: Openlcr Service For Caller Iq Feature

    • • If you have any questions regarding the openLCR service, call openLCR´s customer service department at 1-866- openLCR (1-866-673-6527). • • NEITHER PANASONIC COMMUNICATIONS CO., LTD. (PCC) NOR MATSUSHITA ELECTRIC CORPORATION OF AMERICA (MECA) IS IN ANY WAY AFFILIATED WITH, OR RESPONSIBLE FOR THE ACTS OR OMISSIONS OF, OPENLCR.COM, INC.

  • Page 16: Downloading Phone Book Data

    KX-TG2224F / KX-TG2224P / KX-TG2224W 7.2. Downloading Phone Book Data...

  • Page 17: Information Download (Handset)

    KX-TG2224F / KX-TG2224P / KX-TG2224W 7.3. Information Download (Handset) This enables you to view information such as weather forecast, stock quotes, lottery results, sports scores and horoscopes from the LCD display on your openLCR-ready unit. Each time you download the data from openLCR, the information will be updated.

  • Page 18: Settings

    KX-TG2224F / KX-TG2224P / KX-TG2224W 8 SETTINGS 8.1. Connections 8.2. Display Language (Handset) 8.3. Dialing Mode (Handset)

  • Page 19: Direct Commands

    KX-TG2224F / KX-TG2224P / KX-TG2224W 8.4. Direct Commands...

  • Page 20: Operations

    KX-TG2224F / KX-TG2224P / KX-TG2224W 9 OPERATIONS 9.1. Making Calls (Handset)
  • Page 21 KX-TG2224F / KX-TG2224P / KX-TG2224W...

  • Page 22: Answering Calls (Handset)

    KX-TG2224F / KX-TG2224P / KX-TG2224W 9.2. Answering Calls (Handset)

  • Page 23: Flash Button (Handset)

    KX-TG2224F / KX-TG2224P / KX-TG2224W 9.3. FLASH Button (Handset)

  • Page 24: Erasing Messages

    KX-TG2224F / KX-TG2224P / KX-TG2224W 9.4. Erasing Messages...

  • Page 25: Phone Book

    KX-TG2224F / KX-TG2224P / KX-TG2224W 9.5. Phone Book You can store up to 50 names and phone numbers in the handset phone book. All phone book items are sorted alphabetically. You can make a call by selecting a name on the handset display.
  • Page 26 KX-TG2224F / KX-TG2224P / KX-TG2224W...
  • Page 27 KX-TG2224F / KX-TG2224P / KX-TG2224W 9.5.2. Dialing from the Phone Book (Handset)
  • Page 28 KX-TG2224F / KX-TG2224P / KX-TG2224W 9.5.3. Editing an Item in the Phone Book (Handset) 9.5.4. Erasing an Item in the Phone Book (Handset)

  • Page 29: Disassembly Instructions

    KX-TG2224F / KX-TG2224P / KX-TG2224W 10 DISASSEMBLY INSTRUCTIONS Shown in Fig.- To Remove - Remove - Lower Cabinet Screws (2.6 × 12)..(A) × 4 Main P.C. Board Screws (2.6 × 8)...(B) × 2 Tape and Solder The Main P.C. Board Operational P.C.
  • Page 30 KX-TG2224F / KX-TG2224P / KX-TG2224W Shown in Fig.- To Remove - Remove - Battery Cover Battery Cover Rear Cabinet Screws (2.6 × 12)..(D) × 2 Rear Cabinet Rear Cabinet Main P.C. Board Screw (2.6 × 12)..(E) × 1 Screws (2.6 × 9)..(F) × 2 Screws (2 ×...

  • Page 31: Assembly Instructions

    KX-TG2224F / KX-TG2224P / KX-TG2224W 11 ASSEMBLY INSTRUCTIONS 11.1. Fix the LCD to P.C. Board (Handset)

  • Page 32: Connect The Small P.c. Board To Main P.c. Board

    KX-TG2224F / KX-TG2224P / KX-TG2224W 11.2. Connect the Small P.C. Board to Main P.C. Board (Handset) 1. WIPE THE SURFACE OF RF UNIT USING ALCOHOL (IPA). PEEL THE SEPARATOR OFF SMALL P.C.B. AND STICK THE P.C.B. TO THE RF UNIT (Fig. 1).

  • Page 33: Troubleshooting Guide

    KX-TG2224F / KX-TG2224P / KX-TG2224W 12 TROUBLESHOOTING GUIDE Cross Reference: Check Power (P.34) Error Message Table (P.34) Check Playback (P.36) Check Record (P.35) Check Battery Charge (P.37) Check Link (P.37) Check the RF Unit (P.38) Check Handset Transmission (P.43) Check Handset Reception (P.43)

  • Page 34: Check Power

    KX-TG2224F / KX-TG2224P / KX-TG2224W 12.1. Check Power Cross Reference: Note: Power Supply Circuit (P.56) Flash Memory is IC300. Reset Circuit (P.57) DSP is IC201. 12.2. Error Message Table Display Symptom Remedy The initialization was tried, but it could not be done.

  • Page 35: Check Record

    KX-TG2224F / KX-TG2224P / KX-TG2224W 12.3. Check Record 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) through the procedures below.

  • Page 36: Check Playback

    KX-TG2224F / KX-TG2224P / KX-TG2224W 12.4. Check Playback Cross Reference: Note: Power Supply Circuit (P.56) Flash Memory is IC300. DSP is IC201.

  • Page 37: Check Battery Charge

    KX-TG2224F / KX-TG2224P / KX-TG2224W 12.5. Check Battery Charge 12.6. Check Link Cross Reference: Check the RF Unit (P.38) Power Supply Circuit (P.56) Note: Flash Memory is IC300. DSP is IC201. Cross Reference: Check the RF Unit (P.38) Power Supply Circuit (P.63) Note: EEPROM is IC202.

  • Page 38: Check The Rf Unit

    KX-TG2224F / KX-TG2224P / KX-TG2224W 12.7. Check the RF Unit 12.7.1. Defective Unit Check The defective unit should be checked using the HS of Regular unit (working) and BS of Regular unit (working). Both* of Regular unit (working) are required as the defect may be either in the handset or the base of the defective unit. For a defective BASE UNIT, place HS of Regular unit (working) on the cradle of the unit and check to see that the handset links with the base.
  • Page 39 KX-TG2224F / KX-TG2224P / KX-TG2224W b) BASE UNIT A short beep followed by a long beep is heard. This indicates the unit is in TEST POWER LOW mode. Once in TEST POWER LOW mode, to return the unit to the original NORMAL POWER mode, press 2, 5, 8, 0 simultaneously while the handset unit is in stand-by (not in use, not charging).
  • Page 40 KX-TG2224F / KX-TG2224P / KX-TG2224W 12.7.3. RF Check Flowchart : Details of confirmation items are following in “Check Table for RF Block (P.41)”. Note: DSP is IC201. (for Base Unit) DSP is IC201. (for Handset) Both of RF Blocks for Handset and Base Unit are same.
  • Page 41 KX-TG2224F / KX-TG2224P / KX-TG2224W 12.7.4. Check Table for RF Block Item BS (Base unit) (*1) HS (Handset) (*1) Link confirmation Procedure 1. Put “HS (working)” on BS. 1. Put HS on “BS (working)”. [NORMAL 2. Set MODE to [NORMAL POWER] of “HS 2.
  • Page 42 KX-TG2224F / KX-TG2224P / KX-TG2224W 12.7.5. RF-DSP interface signal wave form...

  • Page 43: Check Handset Transmission

    KX-TG2224F / KX-TG2224P / KX-TG2224W 12.8. Check Handset Transmission Cross Reference: SIGNAL ROUTE (P.66). 12.9. Check Handset Reception Cross Reference: SIGNAL ROUTE (P.66). Note: When checking the RF UNIT, Refer to Check the RF Unit (P.38) 12.10. Check Caller ID Cross Reference: Telephone Line Interface (P.58).

  • Page 44: Test Mode

    KX-TG2224F / KX-TG2224P / KX-TG2224W 13 TEST MODE 13.1. Test mode flow chart for Base Unit (*1) It shows whether the telephone line is connected or not. -ON: OFF HOOK. -OFF: ON HOOK...

  • Page 45: Tam Test Mode Flow Chart

    KX-TG2224F / KX-TG2224P / KX-TG2224W 13.2. TAM Test mode flow chart...

  • Page 46: Test Mode Flow Chart For Handset

    KX-TG2224F / KX-TG2224P / KX-TG2224W 13.3. Test mode flow chart for Handset (*1) See Handset Reference Drawing (P.49).---Should return to OPEN after entering the Test mode. (*2) See Adjustment Battery Low Detector Voltage (P.47).

  • Page 47: X201 Check

    KX-TG2224F / KX-TG2224P / KX-TG2224W 13.4. X201 Check The confirmation is made under the “TX Power Check” mode of TEST MODE. Equipment: Frequency counter TP for measurement: TP_ANT Measure range: 2472.64550 MHz ± 5 kHz (1ch) at Test Standby mode in TEST MODE (P.44).

  • Page 48: Base Unit Reference Drawing

    13.6. Base Unit Reference Drawing When connecting the Simulator and Equipments for checking, please refer to below. Frequency Counter(*1) Digital modulation Spectrum Analyzer Board* Degital SG *supplied from f=1KHz Production modulation:60KHz Engineer C306 R211 ANTG2 LC-SHS_RF ANTG R210 R153 C865 C822 C824 C823...

  • Page 49: Handset Reference Drawing

    13.7. Handset Reference Drawing When connecting the Simulator and Equipments for checking, please refer to below. f=1KHz modulation:60KHz Digital Digital modulation HANDSET Board* AC VOLT METER *Supplied from Production Engineer Spectrum Analyzer OSCILLOSCOPE Frequency Counter HANDSET C309 Q204 C269 C306 C310 L208 R265...

  • Page 50: Frequency Table

    KX-TG2224F / KX-TG2224P / KX-TG2224W 13.8. Frequency Table Channel TX/RX Frequency (MHz) Channel TX/RX Frequency (MHz) 2472.70400 2405.63050 2473.21425 2406.14400 2474.75150 2406.65425 2475.26175 2407.16775 2475.77525 2407.67800 2476.28550 2409.21525 2476.80225 2429.18325 2477.31250 2429.69675 2477.82600 2430.20700 2478.33625 2430.72050 2478.84975 2431.23075 2479.36000 2431.74425 2479.87350...

  • Page 51: Description

    KX-TG2224F / KX-TG2224P / KX-TG2224W 14 DESCRIPTION 14.1. Frequency The frequency range of 2402.04900 MHz ~ 2479.87350 MHz is used. Transmitting and receiving channel between base unit and handset is same frequency. Refer to the Frequency Table. 14.2. Time Division Duplex (TDD) operation Transmission/reception between the base unit and handset is performed by time-sharing as shown in Fig.

  • Page 52: Signal Flowchart In The Whole System

    KX-TG2224F / KX-TG2224P / KX-TG2224W 14.3. Signal Flowchart in the Whole System Reception CN1 of the base unit is connected to the TEL line, and the signal is input through the bridge diode D4. While talking the relay (Q4) is turned ON and amplified at the amplifiers Q50, then led to DSP (IC201). DSP generates ADPCM signal. The ADPCM signal is input to RFIC (IC801) of RF UNIT.

  • Page 53: Explanation Of Bbic (Base Band Ic) Data Communication

    KX-TG2224F / KX-TG2224P / KX-TG2224W 15 EXPLANATION OF BBIC (Base Band IC) DATA COMMUNICATION 15.1. Calling 15.3. Ringing 15.4. Ports for Transmitting and Receiving of Data 15.2. To Terminate Communication...

  • Page 54: Block Diagram (Base Unit)

    IC201 DTMF POWER_DOWN POWER DOWN DATA IC332, Q102 IC100 3.6V RXEN Analog REGULATOR VCCA TXEN VCCPA RX GAIN SHCTRL IC101 RSSI 3.3V RXDATA (RXI) REGULATOR CHARGE_CONTACT Q151 CHARGE DETECT CHARGE IC300 Q150 FLASH CONTROL MEMORY KX-TG2224F/P/W BLOCK DIAGRAM (BASE UNIT)

  • Page 55: Circuit Operation (Base Unit)

    KX-TG2224F / KX-TG2224P / KX-TG2224W 17 CIRCUIT OPERATION (Base Unit) General Description: (DSP, Flash Memory) is a digital speakerphone/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 56: Power Supply Circuit

    KX-TG2224F / KX-TG2224P / KX-TG2224W 17.3. Power Supply Circuit Function: The power supply voltage from AC adaptor is converted to the desired voltage of each block. Circuit Operation: This unit supplies the voltage to each block as shown below. 17.3.1. Charge Circuit The voltage from the AC is supplied to the main charge circuits.

  • Page 57: Reset Circuit

    KX-TG2224F / KX-TG2224P / KX-TG2224W 17.4. Reset Circuit Function: This circuit is used for 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 IC100, D101 and power is supplied to the DSP.

  • Page 58: Locator/Intercom Mode

    KX-TG2224F / KX-TG2224P / KX-TG2224W 17.5. Locator/Intercom Mode 1. When the base unit LOCATOR/INTERCOM button is pressed, a call monitor signal (intercom sound) is output from DSP (SPP, SPN). Thus a monitor tone is heard from the speaker. 2. At the same time, flashing of the IN USE/CHARGE (LED900) is obtained from DSP (INUSE-LED). This status is called "Intercom stand-by".

  • Page 59: Auto Disconnect Circuit

    KX-TG2224F / KX-TG2224P / KX-TG2224W 17.7. 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 60: Calling Line Identification (Caller Id)/Call Waiting Caller Id

    KX-TG2224F / KX-TG2224P / KX-TG2224W 17.9. 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 61 KX-TG2224F / KX-TG2224P / KX-TG2224W 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 62: Block Diagram (Handset)

    KX-TG2224F / KX-TG2224P / KX-TG2224W 18 BLOCK DIAGRAM (Handset) DC-DC IC204 CONVERTER X201 Q204 D206~D209 3.0V 8.192MHz BUFFER AMP Q212, L210 IC203 CHARGE XOUT BMCCLK P217, C318 3.0V BATT1 BATT TXEN VCCA VCCPA 2.6V SHCTRL IC205 BATT2 VCCPLL D214 D216...

  • Page 63: Circuit Operation (Handset)

    KX-TG2224F / KX-TG2224P / KX-TG2224W 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 Function • • Battery Low, Power down detect circuit • • Ringer Generation •...

  • Page 64: Charge Circuit

    KX-TG2224F / KX-TG2224P / KX-TG2224W 19.3. Charge Circuit Ni-Cd battery is connected to (BATT+, BATT-). When the handset is put on the cradle of the base unit, the power is supplied from CHARGE1 and CHARGE2 terminals to charge the battery. Q207 detects the voltage of CHARGE1 and CHARGE2 terminals, then the handset makes ID code setting (*) with the base unit.

  • Page 65: Reception Signal

    KX-TG2224F / KX-TG2224P / KX-TG2224W 19.6. Reception Signal The voice signal from the base unit is output to DSP (33) (HSSOUT). This signal is led to the headset jack (CN203) and DSP (44) (HSMIP). The signal input to DSP (44) is inverted and output to DSP (34) (LOUTO).The signal through the headset jack is inverted, then output from DSP (34) to drive the speaker.

  • Page 66: Signal Route

    KX-TG2224F / KX-TG2224P / KX-TG2224W 20 SIGNAL ROUTE Each signal route is as follows.

  • Page 67: Cpu Data (Base Unit)

    KX-TG2224F / KX-TG2224P / KX-TG2224W 21 CPU DATA (Base Unit) 21.1. IC201...

  • Page 68: Cpu Data (Handset)

    KX-TG2224F / KX-TG2224P / KX-TG2224W 22 CPU DATA (Handset) 22.1. IC201...

  • Page 69: Explanation Of Rf Unit Terminals

    KX-TG2224F / KX-TG2224P / KX-TG2224W 23 EXPLANATION OF RF UNIT TERMINALS 23.1. IC801...

  • Page 70: How To Replace Aflat Package Ic

    KX-TG2224F / KX-TG2224P / KX-TG2224W 24 HOW TO REPLACE A 24.3. Removing Solder from Between Pins FLAT PACKAGE IC 1. Add a small amount of solder to the bridged pins. 24.1. 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 71: Cabinet And Electrical Parts (Base Unit)

    KX-TG2224F / KX-TG2224P / KX-TG2224W 25 CABINET AND ELECTRICAL PARTS (Base Unit)

  • Page 72: Cabinet And Electrical Parts (Handset)

    KX-TG2224F / KX-TG2224P / KX-TG2224W 26 CABINET AND ELECTRICAL PARTS (Handset)

  • Page 73: Accessories And Packing Materials

    KX-TG2224F / KX-TG2224P / KX-TG2224W 27 ACCESSORIES AND PACKING MATERIALS...

  • Page 74: Terminal Guide Of The Ics, Transistors And Diodes

    KX-TG2224F / KX-TG2224P / KX-TG2224W 28 TERMINAL GUIDE OF THE ICs, TRANSISTORS AND DIODES 28.1. Base Unit 28.2. Handset...

  • Page 75: Replacement Parts List

    KX-TG2224F / KX-TG2224P / KX-TG2224W 29 REPLACEMENT PARTS Ref. Part No. Part Name & Description Remarks PQBC10377Z1 BUTTON, NEW MESSAGE AS-HB LIST PQHR10975Z GUIDE, LED ABS-HB PQGP10229Z1 PANEL, LCD AS-HB Note: PQXDZLDRS1 LABEL, SECURITY TAG (for KX- TG2224W only) 1. RTL (Retention Time Limited)
  • Page 76 KX-TG2224F / KX-TG2224P / KX-TG2224W Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks L150 G1C6R8MA0072 COIL R219 ERJ3GEYJ103 L151 G1C6R8MA0072 COIL R220 ERJ2GEJ101 L200 PQLQR2KA213 COIL R222 ERJ2GEJ333 L801 MQLRF10NJF COIL R223 ERJ2GEJ222 2.2K...

  • Page 77: Handset

    KX-TG2224F / KX-TG2224P / KX-TG2224W Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks C228 ECUE1H5R0CCQ C858 ECUE1H2R0CCQ C230 ECUV1A106ZF C859 ECUE1H2R0CCQ C231 ECUE1C104ZFQ C860 ECUE1H100DCQ C232 ECUV1H101JCV 100P C861 ECUE1H2R0CCQ C233 ECUV1H101JCV...
  • Page 78 KX-TG2224F / KX-TG2224P / KX-TG2224W Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks PQSX10235Y KEYBOARD SWITCH (for KX- LED210 PQVDEL1921SR TG2224P) LED211 PQVDEL1921SR PQSX10235Z KEYBOARD SWITCH (for KX- (COILS) TG2224W) L203 J0JCC0000186...
  • Page 79 KX-TG2224F / KX-TG2224P / KX-TG2224W Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks R802 ERJ2GEJ100 C828 ECUE1H102KBQ 0.001 R803 ERJ2GEJ100 C829 ECUE1H102KBQ 0.001 R804 ERJ2GEJ4R7 C830 ECUV1A105ZFV R805 ERJ2GEJ331 C831 ECUV1A105ZFV R810...

  • Page 80: For Schematic Diagram

    KX-TG2224F / KX-TG2224P / KX-TG2224W 30 FOR SCHEMATIC DIAGRAM 30.1. Base Unit (SCHEMATIC DIAGRAM (BASE UNIT)) Note: 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 81: Memo

    KX-TG2224F / KX-TG2224P / KX-TG2224W 30.3. Memo...

  • Page 82: Schematic Diagram (Base Unit)

    KX-TG2224F / KX-TG2224P / KX-TG2224W 31 SCHEMATIC DIAGRAM (BASE UNIT) 31.1. Main ANT1 ANT2 ANTG1 ANTG2 L808 C416 C833 10uF C806 L806 10nH R811 SYN_DATA DATA R812 C832 SYN_EN C801 1000p R813 C807 C802 TP_FREQ SYN_CLK C805 R806 TXMOD R400...
  • Page 83 C243 D105 IC331 3.6V IC332 2.7V R105 100K VCC1 L200 2KA213 R150 100K IC100 L202 3.6V D101 Q108 D102 (11) (12) (15) CHGP L150 CHGM 6.8u Q150 (16) Q151 (20) TP_LCT (21) (22) KX-TG2224F/P/W: SCHEMATIC DIAGRAM (BASE UNIT) Main CN101...

  • Page 84: Operation

    31.2. Operation DOWN DOWN ICOM ICOM STOP SKIP ANS1 STOP SKIP ANS1 ANS2 ANS2 #1LC1H LCD900 10 11 12 MICP KX-TG2224F/P/W: SCHEMATIC DIAGRAM (BASE UNIT) Operation MICM...

  • Page 85: Memo

    KX-TG2224F / KX-TG2224P / KX-TG2224W 31.3. Memo...

  • Page 86: Schematic Diagram (Handset)

    KX-TG2224F / KX-TG2224P / KX-TG2224W 32 SCHEMATIC DIAGRAM (HANDSET) L201 D10P RF_UNIT L808 C833 6.3V10 C806 L806 10nH R811 SYN_DATA C832 R812 SYN_EN C801 TP_FREQ R813 K1000P SYN_CLK C802 R806 D10P C805 D10P TXMOD R804 RXGAIN C803 C830 VCC_PLL2A D10P...
  • Page 87 KX-TG2224F / KX-TG2224P / KX-TG2224W Small PCB R247 R278 100K 1.8K Q204 MICP L211 RA201 100K C236 C4P L212 X201 8.192M MICM C237 C4P R253 2.2K (10) HEADSET-JACK C257 R223 6.3V22 L205 (13) C303 L206 MIC2 MIC1 C214 0.1 L208...

  • Page 88: Memo

    KX-TG2224F / KX-TG2224P / KX-TG2224W 32.1. Memo...

  • Page 89: Circuit Board (Base Unit)

    C234 C430 C103 C115 D103 C239 C237 C230 C100 C231 C243 D204 R221 C101 C242 R220 R222 R223 C415 POS1 SA1 R213 C244 R235 C705 C235 D205 R216 C723 R215 L150 L151 KX-TG2224F/P/W CIRCUIT BOARD (BASE UNIT) Main (Component View)
  • Page 90 L200 R114 RSTN1 C110 R108 R105 IC331 R251 C20 DCM D107 C111 R110 C218 C217 R109 R112 R201 C201 RA201 URX1 UTX1 R200 LED203 LED201 R203 ANT1 TP_LCT ANTG1 FLASH KX-TG2224F/P/W CIRCUIT BOARD (BASE UNIT) Main (Flow Solder Side View)

  • Page 91: Operation

    33.2. Operation 33.2.1. Component View LED902 C901 R902 R900 R901 R903 C900 C902 R906 LED903 R904 R905 LED900 INUSE KX-TG2224F/P/W CIRCUIT BOARD (BASE UNIT) Operation (Component View)
  • Page 92 33.2.2. Flow Solder Side View KX-TG2224F/P/W CIRCUIT BOARD (BASE UNIT) Operation (Flow Solder Side View)

  • Page 93: Circuit Board (Handset)

    C298 R243 R274 C299 R242 R213 R212 R275 D202 D201 L203 R238 R281 C203 R210 R209 C293 SP-PHONE To D201 land BLUE To (-) terminal of BATT2 WHITE To (+) side of C303 KX-TG2224F/P/W CIRCUIT BOARD (HANDSET) Main (Component View)

  • Page 94: Flow Solder Side View

    34.2. Flow Solder Side View R240 C211 LED207 R207 LED202 LED204 R204 C209 R206 R202 C206 R205 C207 LED206 C208 R218 C212 R203 C215 R201 LED203 LED201 R217 C287 C210 C296 LED205 R224 R232 R216 KX-TG2224F/P/W CIRCUIT BOARD (HANDSET) Main (Flow Solder Side View)
  • Page 95 KX-TG2224F / KX-TG2224P / KX-TG2224W H.M. KXTG2224F-AK KXTG2224P-AK KXTG2224W-AK...

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