Panasonic KX-TG1283BXS

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27.2. KX-TCA121CXS/CXT

KX-TG1283BXS / KX-TG1283BXT / KX-TCA122CXS / KX-TCA122CXT / KX-TCA121CXS / KX-TCA121CXT

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Table of Contents2
ABOUT LEAD FREE SOLDER (Pbf: Pb Free)4
Suggested Pbf Solder4
For Service Technicians5
Caution5
Operating Instructions6
To Use the Unit in the Event of a Power Failure6
Battery6
Location of Controls9
Connections10
Guide to Settings11
Registering a Handset to a Base Unit13
Copying Phonebook Entries14
For Service Hint14
Disassembly Instructions15
Base Unit15
Handset16
Charger Unit17
How to Replace the Handset Lcd18
Troubleshooting Flowchart19
Check Power20
Check Battery Charge21
Check Link22
Check Handset Transmission26
Check Handset Reception26
Check Caller ID26
Check Base Speakerphone Transmission26
Check Base Speakerphone Reception26
Bell Reception27
Check TAM Operation27
Troubleshooting by Symptom (Base Unit and Charger Unit)28
Check Point (Base Unit)28
The Setting Method of JIG (Base Unit)33
Adjustment Standard (Base Unit)35
Check Point (Charger Unit)36
Adjustment Standard (Charger Unit)36
Troubleshooting by Symptom (Handset)37
Check Point (Handset)37
Troubleshooting for Speakerphone (Handset)40
The Setting Method of JIG (Handset)41
Adjustment Standard (Handset)43
Things to Do after Replacing IC44
Base Unit44
Handset44
Rf Specification45
Base Unit45
Handset45
How to Check the Speaker or Receiver46
FREQUENCY TABLE (Mhz)46
Block Diagram (Base Unit)48
Circuit Operation (Base Unit)48
Outline48
Power Supply Circuit49
Telephone Line Interface50
Transmitter/Receiver50
Pulse Dialling50
Block Diagram (Handset)51
Circuit Operation (Handset)52
Outline52
Power Supply Circuit/Reset Circuit52
Charge Circuit52
Battery Low/Power down Detector52
Speakerphone52
Circuit Operation (Charger Unit)53
Power Supply Circuit53
Signal Route54
Cpu Data (Base Unit)56
Ic4 (Bbic)56
Cpu Data (Handset)59
Ic1 (Bbic)59
Engineering Mode61
Base Unit61
Handset64
Copying Phonebook Items When Repairing67
How to Clear User Setting69
How to Replace the Flat Package IC70
Preparation70
How to Remove the IC70
How to Install the IC71
How to Remove a Solder Bridge71
Cabinet and Electrical Parts (Base Unit)72
Cabinet and Electrical Parts (Handset)73
Cabinet and Electrical Parts (Charger Unit)74
Accessories and Packing Materials75
Kx-Tg1283Bxs/Bxt75
Kx-Tca121Cxs/Cxt76
TERMINAL GUIDE of the Ics, TRANSISTORS and DIODES77
Base Unit77
Handset77
Charger Unit78
Replacement Parts List79
Base Unit79
Handset82
Charger Unit83
Accessories and Packing Materials84
Screws84
Fixtures and Tools84
For Schematic Diagram85
Base Unit (SCHEMATIC DIAGRAM (BASE UNIT_MAIN))85
Handset (SCHEMATIC DIAGRAM (HANDSET))85
Charger Unit (SCHEMATIC DIAGRAM (CHARGER UNIT))85
Schematic Diagram (Base Unit_Main)86
Schematic Diagram (Handset)90
Schematic Diagram (Charger Unit)92
Circuit Board (Base Unit_Main)99
Component View99
Flow Solder Side View99
Circuit Board (Base Unit_Operation)99
Circuit Board (Charger Unit)99

Table of Contents

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