Panasonic KX-TG1283JXS

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Power Supply Circuit/Reset Circuit (P.49)

Check Point (Handset) (P.35)

KX-TG1283JXS / KX-TG1283JXT / 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
How to Recognize that Pb Free Solder Is Used5
For Service Technicians6
Caution6
Operating Instructions7
To Use the Unit in the Event of a Power Failure7
Battery7
Location of Controls10
Connections11
Guide to Settings12
For Service Hint13
Disassembly Instructions14
Base Unit14
Handset15
Charger Unit16
How to Replace the Handset Lcd17
Troubleshooting Flowchart18
Check Power19
Check Battery Charge20
Check Link21
Check Handset Transmission25
Check Handset Reception25
Check Caller ID25
Check Base Speakerphone Transmission25
Check Base Speakerphone Reception25
Bell Reception26
Check TAM Operation26
Troubleshooting by Symptom (Base Unit and Charger Unit)27
Check Point (Base Unit)27
The Setting Method of JIG (Base Unit)32
Adjustment Standard (Base Unit)34
Check Point (Charger Unit)34
Adjustment Standard (Charger Unit)34
Troubleshooting by Symptom (Handset)35
Check Point (Handset)35
Troubleshooting for Speakerphone (Handset)38
The Setting Method of JIG (Handset)39
Adjustment Standard (Handset)40
Things to Do after Replacing IC41
Base Unit41
Handset41
Rf Specification42
Base Unit42
Handset42
How to Check the Speaker or Receiver43
FREQUENCY TABLE (Mhz)43
Block Diagram (Base Unit)45
Circuit Operation (Base Unit)45
Outline45
Power Supply Circuit46
Telephone Line Interface47
Transmitter/Receiver47
Pulse Dialling47
Block Diagram (Handset)48
Circuit Operation (Handset)49
Outline49
Power Supply Circuit/Reset Circuit49
Charge Circuit49
Battery Low/Power down Detector49
Speakerphone49
Circuit Operation (Charger Unit)50
Power Supply Circuit50
Signal Route51
Cpu Data (Base Unit)53
Ic4 (Bbic)53
Cpu Data (Handset)56
Ic1 (Bbic)56
Engineering Mode58
Base Unit58
Handset61
How to Replace the Flat Package IC63
Preparation63
Flat Package IC Removal Procedure63
Flat Package IC Installation Procedure64
Bridge Modification Procedure64
Cabinet and Electrical Parts (Base Unit)65
Cabinet and Electrical Parts (Handset)66
Cabinet and Electrical Parts (Charger Unit)67
Accessories and Packing Materials68
Kx-Tg1283Jxs/Jxt68
Kx-Tca121Cxs/Cxt69
TERMINAL GUIDE of the Ics, TRANSISTORS and DIODES70
Base Unit70
Handset70
Charger Unit71
Replacement Parts List72
Base Unit72
Handset75
Charger Unit76
Accessories and Packing Materials77
Fixtures and Tools77
For Schematic Diagram79
Base Unit (SCHEMATIC DIAGRAM (BASE UNIT_MAIN))79
Handset (SCHEMATIC DIAGRAM (HANDSET))79
Charger Unit (SCHEMATIC DIAGRAM (CHARGER UNIT))79
Schematic Diagram (Base Unit_Main)80
Schematic Diagram (Handset)84
Schematic Diagram (Charger Unit)86
Circuit Board (Base Unit_Main)93
Component View93
Flow Solder Side View93
Circuit Board (Base Unit_Operation)93
Circuit Board (Charger Unit)93

Panasonic KX-TG1283JXS

Table of Contents

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