Panasonic KX-TGCA20EX - Page 13

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KX-TGC210/KX-TGC212/KX-TGC213/KX-TGC220/KX-TGC222/KX-TGCA20

4.4.4.1. Charge Circuit

The voltage from the AC adaptor is supplied to the charge circuits.

D361

R372 R371

F301

DCP

+5.5V

CHARGE-

CHARGE+

( )

DCM

D362

C351

Main Page

Table of Contents3
Safety Precautions5
For Service Technicians5
Warning5
Battery Caution5
About Lead Free Solder (Pbf: Pb Free)5
Suggested Pbf Solder6
Discarding of P. C. Board6
Specifications7
Technical Descriptions8
Block Diagram (Base Unit_Main)8
Circuit Operation (Base Unit)9
Outline9
Block Diagram (Base Unit_Rf Part)10
Circuit Operation (Base Unit)11
BBIC (Base Band IC: IC501)11
Flash Memory (IC601)(for KX-TGC220 Only)11
Eeprom (Ic611)11
Power Supply Circuit/Reset Circuit12
Telephone Line Interface14
Transmitter/Receiver14
Block Diagram (Handset)16
Circuit Operation (Handset)17
Outline17
Power Supply Circuit/Reset Circuit17
Charge Circuit17
Battery Low/Power down Detector17
Speakerphone17
Signal Route18
Location of Controls and Components20
Installation Instructions20
Operating Instructions20
For Service Hint20
Test Mode21
Engineering Mode21
Base Unit21
Handset23
EEPROM LAYOUT (Handset)25
Scope25
Introduction25
EEPROM Contents25
How to Clear User Setting26
Resetting both Base Unit and Handset26
Resetting Only Handset26
Troubleshooting Guide27
Troubleshooting Flowchart27
Check Power28
Check Record29
Check Playback30
Check Battery Charge30
Check Link31
Check the RF Part33
Registering a Handset to the Base Unit37
Deregistering a Handset37
Check Handset Transmission38
Check Handset Reception38
Check Caller38
Bell Reception39
Check TAM Operation (for KX-TGC220 Only)39
Troubleshooting by Symptom (Base Unit and Charger Unit)40
Check Point (Base Unit)40
Troubleshooting by Symptom (Handset)42
Check Point (Handset)42
Disassembly and Assembly Instructions45
Disassembly Instructions45
Base Unit45
Handset48
Charger Unit49
How to Replace the Handset LCD50
Measurements and Adjustments51
Equipment Required51
The Setting Method of JIG51
Connections (Base Unit)51
How to Install Batch File into P.C52
Commands52
Adjustment Standard (Base Unit)53
Bottom View53
The Setting Method of JIG (Handset)54
Connections54
How to Install Batch File into P.C55
Commands55
Adjustment Standard (Handset)56
Component View56
Things to Do after Replacing IC or X'tal57
How to Download the Data57
RF Specification59
Base Unit59
Handset59
How to Check the Handset Speaker or Receiver60
Frequency Table (Mhz)60
Miscellaneous61
How to Replace the Flat Package IC61
Preparation61
How to Remove the IC61
How to Install the IC62
How to Remove a Solder Bridge62
How to Replace the Shield Case63
Preparation63
Caution63
How to Remove the Shield Case63
How to Install the Shield Case64
Terminal Guide of the Ics, Transistors and Diodes65
Base Unit65
Handset65
Schematic Diagram67
For Schematic Diagram67
Base Unit (Base Unit (Main))67
Handset (Handset (Main))67
Base Unit (Main)68
Kx-Tgc21068
Kx-Tgc22070
Base Unit (Operation)72
Handset (Main)74
Printed Circuit Board77
Base Unit (Main)77
Component View77
Bottom View78
Base Unit (Operation) (KX-TGC220 Only)79
Handset81
Component View81
Bottom View82
Exploded View and Replacement Parts List83
Cabinet and Electrical Parts (Base Unit)83
Kx-Tgc21083
Kx-Tgc22084
Cabinet and Electrical Parts (Handset)85
Cabinet and Electrical Parts (Charger Unit)86
Accessories and Packing Material87
Kx-Tgc210Bl, Kx-Tgc212Bl, Kx87
Tgc222Bx87
For KX-TGC210HK, KX-TGC210TW, KX-TGC210UE88
For KX-TGC212HK, KX-TGC212TW, KX-TGC212UE89
For KX-TGC213UE90
Kx-Tgc220Ue91
Kx-Tgc222Ue92
Replacement Parts List93
Base Unit93
Handset96
Charger Unit97
Accessories and Packing Materials98
Screws99
Fixtures and Tools99

Panasonic KX-TGCA20EX - Page 13

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