Panasonic KX-TG2260BXS Service Manual
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Panasonic KX-TG2260BXS Service Manual

Panasonic KX-TG2260BXS Service Manual

Digital cordless answering system
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Telephone Equipment
KX-TG2260BXS
KX-TGA228BXS
Digital Cordless Answering System
Silver Version
(for Asia, Middle Near East and Other areas)
© 2003 Panasonic Communications Co., Ltd. All
rights
reserved.
distribution is a violation of law.
ORDER NO. KM40308187C3
Unauthorized
copying
and

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  • Page 1 ORDER NO. KM40308187C3 Telephone Equipment KX-TG2260BXS KX-TGA228BXS Digital Cordless Answering System Silver Version (for Asia, Middle Near East and Other areas) © 2003 Panasonic Communications Co., Ltd. All rights reserved. Unauthorized copying distribution is a violation of law.

  • Page 2: Table Of Contents

    KX-TG2260BXS / KX-TGA228BXS CONTENTS Page Page 1 ABOUT LEAD FREE SOLDER (PbF: Pb free) 11.10. Check Handset Transmission 1.1. Suggested PbF Solder 11.11. Check Handset Reception 1.2. How to recognize that Pb Free solder is used 11.12. Check Caller ID...
  • Page 3 KX-TG2260BXS / KX-TGA228BXS 19 SIGNAL ROUTE 28.1. Base Unit 20 CPU DATA (BASE UNIT) 28.2. Handset 20.1. IC201 28.3. Accessories and Packing Materials 21 CPU DATA (HANDSET) 29 FOR SCHEMATIC DIAGRAM 21.1. IC201 29.1. Base Unit (SCHEMATIC DIAGRAM (BASE UNIT)) 22 EXPLANATION OF RF UNIT TERMINALS 29.2.

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

    KX-TG2260BXS / KX-TGA228BXS 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-TG2260BXS / KX-TGA228BXS 1.2. How to recognize that Pb Free solder is used 1.2.1. Base Unit 1.2.1.1. Main Marked IC201 (Component View) Note: The location of the “PbF” mark is subject to change without notice. (Component View) 1.2.1.2. Operation Marked...

  • Page 6: For Service Technicians

    KX-TG2260BXS / KX-TGA228BXS 1.2.2. Handset Marked IC801 IC201 (Component View) Note: The location of the “PbF” mark is subject to change without notice. 2 FOR SERVICE TECHNICIANS ICs and LSIs are vulnerable to static electricity. When repairing, the following precautions will help prevent recurring malfunctions.

  • Page 7: Battery

    KX-TG2260BXS / KX-TGA228BXS 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-TG2260BXS / KX-TGA228BXS 4.5. Battery Replacement 4.6. Battery information...

  • Page 9: Location Of Controls

    KX-TG2260BXS / KX-TGA228BXS 5 LOCATION OF CONTROLS 5.1. Base Unit...

  • Page 10: Handset

    KX-TG2260BXS / KX-TGA228BXS 5.2. Handset...

  • Page 11: Display

    KX-TG2260BXS / KX-TGA228BXS 6 DISPLAY 6.1. Troubleshooting...
  • Page 12 KX-TG2260BXS / KX-TGA228BXS...
  • Page 13 KX-TG2260BXS / KX-TGA228BXS...
  • Page 14 KX-TG2260BXS / KX-TGA228BXS...

  • Page 15: Settings

    KX-TG2260BXS / KX-TGA228BXS 7 SETTINGS 7.1. Connections 7.2. Dialing Mode (Handset)

  • Page 16: Line Mode (Handset)

    KX-TG2260BXS / KX-TGA228BXS 7.3. Line Mode (Handset)

  • Page 17: Direct Commands

    KX-TG2260BXS / KX-TGA228BXS 7.4. Direct Commands...

  • Page 18: Operations

    KX-TG2260BXS / KX-TGA228BXS 8 OPERATIONS 8.1. Making Calls 8.1.1. Using the Handset...
  • Page 19 KX-TG2260BXS / KX-TGA228BXS...
  • Page 20 KX-TG2260BXS / KX-TGA228BXS 8.1.2. Using the Base Unit...

  • Page 21: Answering Calls

    KX-TG2260BXS / KX-TGA228BXS 8.2. Answering Calls 8.2.1. Base Unit 8.2.2. Handset...

  • Page 22: Flash Button

    KX-TG2260BXS / KX-TGA228BXS 8.3. FLASH Button...

  • Page 23: Dial Lock (Handset)

    KX-TG2260BXS / KX-TGA228BXS 8.4. Dial Lock (Handset)

  • Page 24: Erasing Messages

    KX-TG2260BXS / KX-TGA228BXS 8.5. Erasing Messages...

  • Page 25: Phone Book (Handset)

    KX-TG2260BXS / KX-TGA228BXS 8.6. Phone Book (Handset) 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-TG2260BXS / KX-TGA228BXS...
  • Page 27 KX-TG2260BXS / KX-TGA228BXS 8.6.2. Dialing from the Phone Book...
  • Page 28 KX-TG2260BXS / KX-TGA228BXS 8.6.3. Editing an Item in the Phone Book 8.6.4. Erasing an Item in the Phone Book...

  • Page 29: Disassembly Instructions

    KX-TG2260BXS / KX-TGA228BXS 9 DISASSEMBLY INSTRUCTIONS Shown in Fig.- To Remove Remove Lower Cabinet Screws (2.6 × 14)..(A) × 5 Main P.C.Board Screw (2.6 × 8)....(B) × 1 Tape and Solder Main P.C.Board Operational P.C.Board Screws (2.6 × 8)...(C) × 7...
  • Page 30 KX-TG2260BXS / KX-TGA228BXS Shown in Fig.- To Remove Remove Rear Cabinet Screws (2.6 × 12)..(D) × 2 Rear Cabinet Follow the procedure. Main P.C. Board Screw (2.6 × 12)..(E) × 1 Screws (2.6 × 9)..(F) × 2 Screws (2 × 10)..(G) × 2 Solder and Tape Main P.C.Board...

  • Page 31: Assembly Instructions

    KX-TG2260BXS / KX-TGA228BXS 10 ASSEMBLY INSTRUCTIONS 10.1. Fix the LCD to P.C. Board (Handset)

  • Page 32: Troubleshooting Guide

    KX-TG2260BXS / KX-TGA228BXS 11 TROUBLESHOOTING GUIDE Cross Reference: Check Power (P.33) Error Message Table (Base Unit) (P.33) Check Playback (P.35) Check Record (P.34) Check Sp-phone Transmission (P.35) Check Sp-phone Reception (P.36) Check Battery Charge (P.37) Check Link (P.37) Check the RF Unit (P.38) Check Handset Transmission (P.43)

  • Page 33: Check Power

    KX-TG2260BXS / KX-TGA228BXS 11.1. Check Power Cross Reference: Note: Power Supply Circuit (P.56) Flash Memory is IC300. Reset Circuit (P.57) DSP is IC201. 11.2. Error Message Table (Base Unit) Note: Flash Memory is IC300. DSP is IC201.

  • Page 34: Check Record

    KX-TG2260BXS / KX-TGA228BXS 11.3. 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 35: Check Playback

    KX-TG2260BXS / KX-TGA228BXS 11.4. Check Playback Cross Reference: Note: Power Supply Circuit (P.56) Flash Memory is IC300. DSP is IC201. 11.5. Check Sp-phone Transmission Cross Reference: Note: Telephone Line Interface (P.58) Flash Memory is IC300. SIGNAL ROUTE (P.66) DSP is IC201.

  • Page 36: Check Sp-Phone Reception

    KX-TG2260BXS / KX-TGA228BXS 11.6. Check Sp-phone Reception Cross Reference: Note: Telephone Line Interface (P.58) Flash Memory is IC300. SIGNAL ROUTE (P.66) DSP is IC201.

  • Page 37: Check Battery Charge

    KX-TG2260BXS / KX-TGA228BXS 11.7. Check Battery Charge 11.8. 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.62) Note: EEPROM is IC202.

  • Page 38: Check The Rf Unit

    KX-TG2260BXS / KX-TGA228BXS 11.9. Check the RF Unit 11.9.1. 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-TG2260BXS / KX-TGA228BXS 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-TG2260BXS / KX-TGA228BXS 11.9.3. RF Check Flowchart : Details of confirmation items are following in Check Table for RF Unit (P.41). Note: DSP is IC201. (for Base Unit) DSP is IC201. (for Handset) Both of RF units for Handset and Base Unit are same.
  • Page 41 KX-TG2260BXS / KX-TGA228BXS 11.9.4. Check Table for RF Unit 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-TG2260BXS / KX-TGA228BXS 11.9.5. RF-DSP interface signal wave form...

  • Page 43: Check Handset Transmission

    KX-TG2260BXS / KX-TGA228BXS 11.10. Check Handset Transmission Cross Reference: SIGNAL ROUTE (P.66). 11.11. Check Handset Reception Cross Reference: SIGNAL ROUTE (P.66). Note: When checking the RF UNIT, Refer to Check the RF Unit (P.38) 11.12. Check Caller ID Cross Reference: Telephone Line Interface (P.58).

  • Page 44: Test Mode

    KX-TG2260BXS / KX-TGA228BXS 12 TEST MODE 12.1. 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-TG2260BXS / KX-TGA228BXS 12.2. TAM Test mode flow chart...

  • Page 46: Test Mode Flow Chart For Handset

    KX-TG2260BXS / KX-TGA228BXS 12.3. 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-TG2260BXS / KX-TGA228BXS 12.4. 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

    12.6. 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 C868...

  • Page 49: Handset Reference Drawing

    12.7. 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 (*1) HANDSET Q204 C269 C306 C309 C310 L208...

  • Page 50: Frequency Table

    KX-TG2260BXS / KX-TGA228BXS 12.8. Frequency Table Channel TX/RX Frequency (MHz) Channel TX/RX Frequency (MHz) 2426.10875 2437.37325 2426.62225 2437.88675 2427.13250 2438.39700 2427.64925 2438.91050 2428.15950 2439.42075 2428.67300 2439.93425 2429.18325 2442.49200 2429.69675 2443.00550 2430.20700 2443.51575 2430.72050 2444.03250 2431.23075 2444.54275 2431.74425 2445.05625 2432.25450 2445.56650 2433.79175...

  • Page 51: Description

    KX-TG2260BXS / KX-TGA228BXS 13 DESCRIPTION 13.1. Frequency The frequency range of 2426.10875 MHz ~ 2448.63775 MHz is used. Transmitting and receiving channel between base unit and handset is same frequency. Refer to the Frequency Table. 13.2. 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-TG2260BXS / KX-TGA228BXS 13.3. 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-TG2260BXS / KX-TGA228BXS 14 EXPLANATION OF BBIC (Base Band IC) DATA COMMUNICATION 14.1. Calling 14.3. Ringing 14.4. Ports for Transmitting and Receiving of Data 14.2. To Terminate Communication...

  • Page 54: Block Diagram (Base Unit)

    IC201 DTMF POWER_DOWN POWER DOWN IC332, Q102 DATA IC100 3.6V RXEN Analog REGULATOR VCCA TXEN VCCPA RX GAIN SHCTRL IC101 RSSI 3.3V RXDATA (RXI) REGULATOR CHARGE_CONTACT Q151 CHARGE DETECT FLASH IC300 CHARGE Q150 MEMORY CONTROL KX-TG2260BXS BLOCK DIAGRAM (BASE UNIT)

  • Page 55: Circuit Operation (Base Unit)

    KX-TG2260BXS / KX-TGA228BXS 16 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-TG2260BXS / KX-TGA228BXS 16.3. 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. Note: As for , see CIRCUIT BOARD (BASE UNIT) (P.89).

  • Page 57: Reset Circuit

    KX-TG2260BXS / KX-TGA228BXS 16.4. 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 IC100, D101 and power is supplied to the DSP.

  • Page 58: Locator/Intercom Mode

    KX-TG2260BXS / KX-TGA228BXS 16.5. 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-TG2260BXS / KX-TGA228BXS 16.7. 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. Circuit Operation: The voltage DSP (DCIN1) is monitored.

  • Page 60: Calling Line Identification (Caller Id)

    KX-TG2260BXS / KX-TGA228BXS 16.9. 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 61: Block Diagram (Handset)

    KX-TG2260BXS / KX-TGA228BXS 17 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 SHCTRL IC205 BATT2 VCCPA D214 2.6V VCCPLL D216 TXO (VMOD)

  • Page 62: Circuit Operation (Handset)

    KX-TG2260BXS / KX-TGA228BXS 18 CIRCUIT OPERATION (HANDSET) 18.1. Construction The circuit mainly consists of DSP and RF unit as shown in the block diagram. 18.1.1. DSP:IC201 Function • • • • Battery Low, Power down detect circuit • • • • Ringer Generation •...

  • Page 63: Reset Circuit

    KX-TG2260BXS / KX-TGA228BXS 18.3. Reset Circuit Function: This circuit is used to initialize the microcomputer when it incorporates a Battery. Circuit Operation: When the Battery is inserted into the unit, Power Down signal and Reset signal are generated by IC205, IC203, Q212 and Q205...

  • Page 64: Charge Circuit

    KX-TG2260BXS / KX-TGA228BXS 18.4. Charge Circuit Ni-MH 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-TG2260BXS / KX-TGA228BXS 18.7. 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 KX-TG2260BXS / KX-TGA228BXS 19 SIGNAL ROUTE Each signal route is as follows.
  • Page 67 KX-TG2260BXS / KX-TGA228BXS 20 CPU DATA (BASE UNIT) 20.1. IC201...
  • Page 68 KX-TG2260BXS / KX-TGA228BXS 21 CPU DATA (HANDSET) 21.1. IC201...
  • Page 69 KX-TG2260BXS / KX-TGA228BXS 22 EXPLANATION OF RF UNIT TERMINALS 22.1. IC801...
  • Page 70 KX-TG2260BXS / KX-TGA228BXS 23.3. Removing Solder from 23 HOW TO REPLACE A Between Pins FLAT PACKAGE IC 1. Add a small amount of solder to the bridged pins. 23.1. 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 KX-TG2260BXS / KX-TGA228BXS 24 CABINET AND ELECTRICAL PARTS (BASE UNIT)
  • Page 72 KX-TG2260BXS / KX-TGA228BXS 25 CABINET AND ELECTRICAL PARTS (HANDSET)
  • Page 73 KX-TG2260BXS / KX-TGA228BXS 26 ACCESSORIES AND PACKING MATERIALS...
  • Page 74 KX-TG2260BXS / KX-TGA228BXS 27 TERMINAL GUIDE OF THE ICs, TRANSISTORS AND DIODES 27.1. Base Unit 27.2. Handset...
  • Page 75 KX-TG2260BXS / KX-TGA228BXS 28 REPLACEMENT PARTS Ref. Part No. Part Name & Description Remarks PQSA10098X ANTENNA LIST PQBX10370Z1 BUTTON, TAM ABS-HB PQBC10382Z1 BUTTON, MESSAGE AS-HB Note: PQHR10981Z GUIDE, LED ABS-HB PQSX10234Z KEYBOARD SWITCH, TAM 1. RTL (Retention Time Limited) PQSX10233W...
  • Page 76 KX-TG2260BXS / KX-TGA228BXS Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks ERJ2GEJ122 1.2K R260 ERJ2GEJ471 ERJ2GEJ681 R261 ERJ2GEJ471 ERJ2GEJ470 R262 ERJ2GEJ104 100K ERJ12YJ330 R263 ERJ2GEJ101 ERJ3GEYJ393 R264 ERJ2GEJ182 1.8K ERJ3GEY0R00 R300 ERJ2GE0R00...
  • Page 77 KX-TG2260BXS / KX-TGA228BXS Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks C252 ECUE1C104ZFQ X200 H0J819400004 CRYSTAL OSCILLATOR C260 ECUE1C104ZFQ C261 ECUE1H3R0CCQ 28.1.3. Operational P.C.Board Parts C262 ECUE1A104KBQ C263 ECUE1A104KBQ Ref. Part No.
  • Page 78 KX-TG2260BXS / KX-TGA228BXS Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks IC201 C2HBBJ000038 R228 ERJ2GEJ224 220K IC202 PQWIG2260BXR R229 ERJ2GEJ102 IC203 C0CBABD00019 R230 ERJ2GEJ102 IC204 PQVIMM1385HN R231 ERJ2GEJ102 IC205 C0EBE0000292 R232 ERJ3GEYJ103...
  • Page 79 KX-TG2260BXS / KX-TGA228BXS Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks C293 ECUE1H221JCQ 220P PQKE10361Z3 HANGER, BELP CLIP PC+ABS- C294 ECUE1C104ZFQ PQQX13743Z INSTRUCTION BOOK C298 ECUE1H101JCQ 100P PQQW12926Z QUICK GUIDE C299 ECUE1H101JCQ...
  • Page 80 KX-TG2260BXS / KX-TGA228BXS 29 FOR SCHEMATIC DIAGRAM 29.1. 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 KX-TG2260BXS / KX-TGA228BXS 29.3. Memo...
  • Page 82 KX-TG2260BXS / KX-TGA228BXS 30 SCHEMATIC DIAGRAM (BASE UNIT) 30.1. Main ANT1 ANT2 ANTG1 ANTG2 C416 L808 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 VMOD R804 3.3K...
  • Page 83 C243 D105 IC331 3.6V 2.7V IC332 R105 100K VCC1 L200 R150 100K IC100 L202 3.6V D101 Q108 D102 (12) (13) (14) (15) CHGP L150 CHGM 6.8u Q150 (16) Q151 (20) TP_LCT (21) (22) KX-TG2260BXS: SCHEMATIC DIAGRAM (BASE UNIT) Main CN101...
  • Page 84 KX-TG2260BXS / KX-TGA228BXS 30.2. Memo...
  • Page 85 30.3. Operation ICOM ICOM DOWN DOWN MSG1 MSG2 MSG1 MSG2 MUTE MUTE STOP SKIP MEMO STOP SKIP MEMO LCD900 3 4 5 6 7 10 11 12 to Main PCB (Base Unit) MICP KX-TG2260BXS SCHEMATIC DIAGRAM (BASE UNIT) Operation MICM...
  • Page 86 KX-TG2260BXS / KX-TGA228BXS 31 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 GND_RF VCC_PLL2B...
  • Page 87 KX-TG2260BXS / KX-TGA228BXS R247 R278 100K 1.8K Q204 MICP L211 RA201 100K C236 C4P L212 IC206 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 81 NC VCCPLL...
  • Page 88 KX-TG2260BXS / KX-TGA228BXS 31.1. Memo...
  • Page 89 C103 C115 D103 C239 C237 C230 C100 C231 C243 D204 R221 C101 C242 R220 R222 R223 R213 C415 C244 POS1 SA1 R235 3.3V C705 C235 D205 R216 C723 R215 L150 L151 RSSI KX-TG2260BXS 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-TG2260BXS CIRCUIT BOARD (BASE UNIT) Main (Flow Solder Side View)
  • Page 91 32.2. Operation 32.2.1. Component View KX-TG2260BXS CIRCUIT BOARD (BASE UNIT) Operation (Component View)
  • Page 92 32.2.2. Flow Solder Side View KX-TG2260BXS CIRCUIT BOARD (BASE UNIT) Operation (Flow Solder Side View)
  • Page 93 33 CIRCUIT BOARD (HANDSET) 33.1. Main 33.1.1. Component View RSTN (Power Down) (8.19MHz) (Reset) 3.0V HANDSET C309 Q204 C269 C306 L208 C310 R265 R278 C308 D205 C295 R277 L209 R302 R280 C307 R276 R279 R303 D206 D214 R215 D212 C239 C229 R233 C869 C238 L205...
  • Page 94 33.1.2. 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 C210 C287 C296 LED205 R224 R232 R216 KX-TGA228BXS CIRCUIT BOARD (HANDSET) Main (Flow Solder Side View)
  • Page 95 KX-TG2260BXS / KX-TGA228BXS H.M. KXTG2260BXS KXTGA228BXS...

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