Panasonic KX-TG2323AGB Service Manual Download

Page: 47 / 50

12.6. Handset Reference Drawing

When connecting the Simulator Equipments for checking, please refer to the illustration below.

IC901

IC204

IC201

IC206

IC202

IC207

CN203

Q207

D212

D203

D216

D215

L207

CHG1

CHG2

VSS

VBAT

VBAT2

D208

D207

C303

C302

C301

C216

C223

C267

RST

PDN

MICM

SPP

RXI

RSSI

TXO

DEMOD

RECEIVER

SP-PHONE

BCK

SPM

MICP

L209

L210

D209

D220

D320

C225

C268

D217

D218

RA901

C942

FL901

D903

D904

C981

L205

L203

Q201

RA204

L208

Q205

Q206

IC205

IC203

Q212

D205

D206

Q208

Q209

Q210

Q204

C220

C213

RA201

X201

IC208

PbF

ANT

ANT GND

SSG

FREQUENCY
COUNTER (*1)

AC VOLT

METER

DC VOLT

METER

DC POWER SUPPLY

MONITOR SP

OSCILLOSCOPE

SPP

SPM

MIC_M

MIC_P

OSC

1.1kHz

MIC LOAD

150

SPP

SPM

RSSI

AC VOLT

METER

OSCILLOSCOPE

VSS

VBAT

Note: (*1) is referred to No.3 of Check Table for RF part (P.34)

-T

G232

3AGB

-T

A2
31AG

Summary of Contents for KX-TG2323AGB

Page 1: ...ions Co Ltd All rights reserved Unauthorized copying and distribution is a violation of law KX TG2323AGB KX TGA231AGB 2 4GHz Digital Cordless Answering System Black Version for Argentina Telephone Equipment ORDER NO KM40501578CE ...

Page 2: ...ase Unit 37 12 2 Test Mode Flow Chart for Handset 40 12 3 X801 Base Unit X201 Handset Check 44 12 4 Adjust Battery Low Detector Voltage Handset 44 12 5 Base Unit Reference Drawing 45 12 6 Handset Reference Drawing 47 12 7 Frequency Table 48 12 8 How to Clear User Setting 49 13 DESCRIPTION 50 13 1 Frequency 50 13 2 FHSS Frequency Hopping Spread Spectrum 50 13 3 Signal Flowchart in the Whole System ...

Page 3: ...ACKING MATERIALS 74 27 TERMINAL GUIDE OF THE ICs TRANSISTORS AND DIODES 75 27 1 Base Unit 75 27 2 Handset 75 28 REPLACEMENT PARTS LIST 76 28 1 Base Unit 76 28 2 Handset 78 28 3 Accessories and Packing Materials 80 29 FOR SCHEMATIC DIAGRAM 81 29 1 Base Unit SCHEMATIC DIAGRAM Base Unit 81 29 2 Handset SCHEMATIC DIAGRAM Handset 81 30 SCHEMATIC DIAGRAM Base Unit 82 30 1 Main 82 30 2 Operation 84 31 SC...

Page 4: ...ul not to heat too long PbF solder will tend to splash if it is heated much higher than its melting point approximately 1100 F 600 C If you must use Pb solder on a PCB manufactured using PbF solder remove as much of the original PbF solder as possible and be sure that any remaining is melted prior to applying the Pb solder When applying PbF solder to double layered boards please check the componen...

Page 5: ...ow to Recognize that Pb Free Solder is Used Example Handset P C B IC901 IC201 IC202 Marked PbF Component View Note The location of the PbF mark is subject to change without notice 5 KX TG2323AGB KX TGA231AGB ...

Page 6: ... boxes with aluminum foil 2 Ground the soldering irons 3 Use a conductive mat on worktable 4 Do not grasp IC or LSI pins with bare fingers 3 CAUTION Danger of explosion if battery is incorrectly replaced Replace only with the same or equivalent type recommended by the manufacturer Dispose of used batteries according to the manufacturer s Instructions 6 KX TG2323AGB KX TGA231AGB ...

Page 7: ...4 BATTERY 4 1 Battery Charge 4 2 Battery Recharge 4 3 Battery Information 7 KX TG2323AGB KX TGA231AGB ...

Page 8: ...4 4 Battery Replacement 8 KX TG2323AGB KX TGA231AGB ...

Page 9: ...5 LOCATION OF CONTROLS 5 1 Base Unit 9 KX TG2323AGB KX TGA231AGB ...

Page 10: ...5 2 Handset 10 KX TG2323AGB KX TGA231AGB ...

Page 11: ...6 DISPLAY 6 1 Base Unit Display 11 KX TG2323AGB KX TGA231AGB ...

Page 12: ...7 SETTINGS 7 1 Connections 12 KX TG2323AGB KX TGA231AGB ...

Page 13: ...7 2 Connecting an Optional Headset 7 3 Time and Day 13 KX TG2323AGB KX TGA231AGB ...

Page 14: ...7 4 Dialing Mode 7 5 Voice Enhancer Technology 7 6 Ringer Tone 14 KX TG2323AGB KX TGA231AGB ...

Page 15: ...8 OPERATION 8 1 Answering System 8 1 1 Greeting Message 15 KX TG2323AGB KX TGA231AGB ...

Page 16: ...16 KX TG2323AGB KX TGA231AGB ...

Page 17: ...8 1 2 Erasing Messages 8 2 For Call Waiting Service Users 17 KX TG2323AGB KX TGA231AGB ...

Page 18: ...8 3 FLASH Button 8 4 Remote Operation from a Touch Tone Phone 18 KX TG2323AGB KX TGA231AGB ...

Page 19: ...8 4 1 Summary of Remote Operation 8 4 2 Remote Code 19 KX TG2323AGB KX TGA231AGB ...

Page 20: ...8 4 3 Help Menu Function 8 4 4 Direct Commands 8 4 5 To Turn on the Answering System 8 4 6 Skipping the Greeting 20 KX TG2323AGB KX TGA231AGB ...

Page 21: ...8 4 7 Recording Your Own Message Marker Message 21 KX TG2323AGB KX TGA231AGB ...

Page 22: ...9 TROUBLESHOOTING Cross Reference 1 Re registering the Handset P 32 2 Connecting an Optional Headset P 13 22 KX TG2323AGB KX TGA231AGB ...

Page 23: ...Cross Reference 3 Erasing Messages P 17 4 Remote Code P 19 5 Time and Day P 13 23 KX TG2323AGB KX TGA231AGB ...

Page 24: ...Cross Reference 6 BATTERY P 7 7 Connections P 12 8 Dialing Mode P 14 9 Battery Charge P 7 10 Battery Recharge P 7 11 Battery Replacement P 8 24 KX TG2323AGB KX TGA231AGB ...

Page 25: ... Base Unit Shown in Fig To Remove Remove 1 Cabinet Cover Screws 2 6 12 A 4 2 Main P C Board Tape and Solder 3 Screws 2 6 8 B 3 Main P C Board 4 Operational P C Board Screws 2 6 8 C 6 Operational P C Board 25 KX TG2323AGB KX TGA231AGB ...

Page 26: ...hown in Fig To Remove Remove 5 Cabinet Cover Screws 2 6 12 D 2 6 Follow the procedure 7 Main P C Board Tape and Solder 8 Screw 2 6 12 E 1 Screws 2 6 9 F 2 Charge Terminals Main P C Board 26 KX TG2323AGB KX TGA231AGB ...

Page 27: ... Check Handset Transmission P 36 Check Handset Reception P 36 Note 1 When a user claims that the unit disconnects a call right after the greeting message and no incoming messages can be recorded this symptom can not be reappeared with TEL simulator in the service center In this case try Check Record item C 11 TROUBLESHOOTING GUIDE 27 KX TG2323AGB KX TGA231AGB ...

Page 28: ...d not be done 1 Check the peripheral circuit of Flash Memory visually 2 Confirm that the voltage is added to the power supply pin If no voltage is detected replace the Flash Memory because it might be defect 3 Solder the Flash Memory again E3 E9 When the adjustment data was checked an error was detected The adjustment data may not be written Note Flash Memory is IC701 28 KX TG2323AGB KX TGA231AGB ...

Page 29: ... may cause a malfunction of Auto Disconnect detection To solve this problem try changing the Auto Disconnect activation time through the procedures below Auto Disconnect activation time PROCEDURE Status Enable 2 sec default STOP GREETING CHK LOCATOR simultaneously Stand by 4 sec STOP GREETING CHK simultaneously Disable STOP GREETING CHK simultaneously If the Disable is selected even if the paralle...

Page 30: ...Cross Reference Power Supply Circuit P 56 Note Flash Memory is IC701 DSP is IC501 Note DSP is IC501 11 4 Check Playback 11 5 Check Battery Charge 30 KX TG2323AGB KX TGA231AGB ...

Page 31: ...Note 1 Refer to Finding Out the Defective Part P 32 Cross Reference RF Check Flowchart P 33 11 6 Check Link 31 KX TG2323AGB KX TGA231AGB ...

Page 32: ...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 11 7 1 1 Re registering the Handset 32 KX TG2323AGB KX TGA231AGB ...

Page 33: ...11 7 2 RF Check Flowchart Each item 1a 5 of RF Check Flowchart corresponds to Check Table for RF part P 34 Please refer to the each item 33 KX TG2323AGB KX TGA231AGB ...

Page 34: ... BU Regular Unit to TEST Link mode 1 CH 45ch TX Power High RX Gain High 3 Set HS to TEST Link mode 1 CH 45ch TX Power Low RX Gain Low 4 Press 1 key of HS to establish link about 5m away from BU Regular Unit 5 Press 1 key of HS to set RSSI mode and press 2 key to set RX Gain Low 6 Confirm the value of RSSI in LCD of HS is more than e0 hex 2 Control signal confirmation 1 Set TX Burst mode 1 2 Check ...

Page 35: ...11 7 4 RF DSP interface signal wave form 35 KX TG2323AGB KX TGA231AGB ...

Page 36: ...erence SIGNAL ROUTE P 67 Cross Reference SIGNAL ROUTE P 67 Note When checking the RF UNIT Refer to Check the RF Part P 32 11 8 Check Handset Transmission 11 9 Check Handset Reception 36 KX TG2323AGB KX TGA231AGB ...

Page 37: ...12 TEST MODE 12 1 Test Mode Flow Chart for Base Unit 12 1 1 TX Burst Mode and Adjust X tal Mode 37 KX TG2323AGB KX TGA231AGB ...

Page 38: ...12 1 2 RX CW TEST Mode 38 KX TG2323AGB KX TGA231AGB ...

Page 39: ...12 1 3 Test Link Mode Note 1 for factory use only 39 KX TG2323AGB KX TGA231AGB ...

Page 40: ...12 2 Test Mode Flow Chart for Handset 12 2 1 TX Burst Mode 40 KX TG2323AGB KX TGA231AGB ...

Page 41: ...12 2 2 RX CW TEST Mode 41 KX TG2323AGB KX TGA231AGB ...

Page 42: ...12 2 3 Test Link Mode Note 1 for factory use only 42 KX TG2323AGB KX TGA231AGB ...

Page 43: ...12 2 4 Adjustment flow X tal mode and Batt Low Mode Cross Reference 1 Adjust Battery Low Detector Voltage Handset P 44 43 KX TG2323AGB KX TGA231AGB ...

Page 44: ...hecking tolerance 100Hz adjust to Adjustment tolelance 30Hz by pressing or key Adjustment Tolerance 13 824MHz 30Hz 5 Press TALK key to write the new frequency factor in EEPROM 6 Turn the power off Then this value is available Cross Reference Adjustment flow X tal mode and Batt Low Mode P 43 12 4 Adjust Battery Low Detector Voltage Handset After handset s DSP IC201 or EEPROM IC202 replacement Re wr...

Page 45: ...1 Q800 TP_RSSI BLK VCC RED WHI BCK RST FSI C807 D351 D301 C560 C317 Q570 C167 C508 STB4 1 1 1 28 30 51 8 26 Q201 URX2 UTX2 JC R JS Y JI B JO G DVCC INT0 KIN3 KIN1 KIN2 LGS Q350 IC701 IC601 IC501 IC521 CN102 X801 SA101 SA104 L376 L377 L301 L101 CN101 L102 P101 FL901 1 8 9 16 17 24 25 32 C981 IC901 C942 SP MIC YELLOW GRAY CHG WHITE 80 81 50 31 1 100 FREQUENCY COUNTER 1 Component View BCK RSSI Note 1...

Page 46: ... EVC CDL D404 D103 D401 D402 D102 Q701 ANT2 Q301 IC301 D303 D306 L302 ANTG2 1 5 5 4 DGND C106 C102 C101 L401 L402 SPN SPP MIN MIP AGND D376 D377 CP CM R164 R142 IC201 IC300 LED721 LED722 SPECTRUM ANALYZER ANT1 ANT1 ANTG1 Flow Solder Side View DC 9V DC DCP DCM ATT SG SG out AF VOLT METER OSCILLOSCOPE BELL SIMULATOR LOOP SIMULATOR Ring Tip L1R L1T Call_ID SIMULATOR AF OSC AF OSC KX TG2323AGB KX TGA2...

Page 47: ...VER SP PHONE BCK SPM MICP L209 L210 D209 D220 D320 C225 C268 D217 D218 RA901 C942 FL901 D903 D904 C981 L205 L203 Q201 RA204 L208 Q205 Q206 IC205 IC203 Q212 D205 D206 Q208 Q209 Q210 Q204 C220 C213 RA201 X201 IC208 PbF ANT ANT GND SSG FREQUENCY COUNTER 1 AC VOLT METER DC VOLT METER DC POWER SUPPLY MONITOR SP 8 OSCILLOSCOPE SPP SPM MIC_M MIC_P OSC 1 1kHz MIC LOAD 47 47 150 SPP SPM RSSI AC VOLT METER ...

Page 48: ...72900 2438 183057 44 2439 266748 2439 076904 45 2440 156641 2439 966797 46 2441 050488 2440 860645 47 2441 940381 2441 750537 48 2442 834229 2442 644385 49 2443 724121 2443 534277 50 2444 617969 2444 428125 51 2445 507861 2445 318018 52 2446 401709 2446 211865 53 2447 291602 2447 101758 54 2448 185449 2447 995605 55 2449 075342 2448 885498 56 2449 969189 2449 779346 57 2450 859082 2450 669238 58 2...

Page 49: ... numbers Caller list and etc This operation should not be performed for a usual repair 12 8 1 Base unit Note 1 Telephone line must be connected 12 8 2 Handset Note 1 Be sure to short the battery terminals of the handset with a lead wire etc for 2 seconds for discharge after removing the battery 49 KX TG2323AGB KX TGA231AGB ...

Page 50: ...ncy The construction of RX TX frequency data is shown below It consists of 4 slots from the Base Unit to the cordless Handset and 4 slots from the cordless Handset to the Base Unit total 8 slots in 10ms By this slot system simultaneous air link and communication between 4 cordless Handsets and the Base Unit can be realized One communication between cordless Handset and the Base Unit is done by one...

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