Table Of Contents - Panasonic KX-TGCA20EX Service Manual

TABLE OF CONTENTS

1 Safety Precautions----------------------------------------------- 5
1.1. For Service Technicians --------------------------------- 5
2 Warning -------------------------------------------------------------- 5
2.1. Battery Caution--------------------------------------------- 5
2.2. About Lead Free Solder (PbF: Pb free)-------------- 5
2.2.1. Suggested PbF Solder ------------------------------ 6
2.3. Discarding of P. C. Board-------------------------------- 6
3 Specifications ----------------------------------------------------- 7
4 Technical Descriptions ----------------------------------------- 8
4.1. Block Diagram (Base Unit_Main)---------------------- 8
4.2. Circuit Operation (Base Unit) --------------------------- 9
4.2.1. Outline --------------------------------------------------- 9
4.3. Block Diagram (Base Unit_RF Part) -----------------10
4.4. Circuit Operation (Base Unit) -------------------------- 11
4.4.1. BBIC (Base Band IC: IC501) --------------------- 11
4.4.2. Flash Memory (IC601)(for KX-TGC220
only) ----------------------------------------------------- 11
4.4.3. EEPROM (IC611) ------------------------------------ 11
4.4.4. Power Supply Circuit/Reset Circuit--------------12
4.4.5. Telephone Line Interface---------------------------14
4.4.6. Transmitter/Receiver--------------------------------14
4.5. Block Diagram (Handset)-------------------------------16
4.6. Circuit Operation (Handset)----------------------------17
4.6.1. Outline --------------------------------------------------17
4.6.2. Power Supply Circuit/Reset Circuit--------------17
4.6.3. Charge Circuit ----------------------------------------17
4.6.4. Battery Low/Power Down Detector--------------17
4.6.5. Speakerphone ----------------------------------------17
4.7. Signal Route -----------------------------------------------18
5 Location of Controls and Components ------------------20
6 Installation Instructions ---------------------------------------20
7 Operating Instructions-----------------------------------------20
7.1. For Service Hint-------------------------------------------20
8 Test Mode ----------------------------------------------------------21
8.1. Engineering Mode ----------------------------------------21
8.1.1. Base Unit ----------------------------------------------21
8.1.2. Handset ------------------------------------------------23
8.2. EEPROM LAYOUT (Handset)-------------------------25
8.2.1. Scope ---------------------------------------------------25
8.2.2. Introduction --------------------------------------------25
8.2.3. EEPROM contents ----------------------------------25
8.3. How to Clear User Setting------------------------------26
8.3.1. Resetting both base unit and handset----------26
8.3.2. Resetting only handset -----------------------------26
9 Troubleshooting Guide ----------------------------------------27
9.1. Troubleshooting Flowchart -----------------------------27
9.1.1. Check Power------------------------------------------28
9.1.2. Check Record ----------------------------------------29
9.1.3. Check Playback -------------------------------------30
9.1.4. Check Battery Charge ------------------------------30
9.1.5. Check Link---------------------------------------------31
9.1.6. Check the RF part -----------------------------------33
9.1.7. Registering a Handset to the Base Unit--------37
9.1.8. Deregistering a Handset ---------------------------37
9.1.9. Check Handset Transmission --------------------38
9.1.10. Check Handset Reception-------------------------38
9.1.11. Check Caller ID --------------------------------------38
9.1.12. Bell Reception ----------------------------------------39
KX-TGC210/KX-TGC212/KX-TGC213/KX-TGC220/KX-TGC222/KX-TGCA20
PAGE
9.1.13. Check TAM Operation (for KX-TGC220
only) ---------------------------------------------------- 39
9.2. Troubleshooting by Symptom (Base Unit and
Charger Unit)---------------------------------------------- 40
9.2.1. Check Point (Base Unit) --------------------------- 40
9.3. Troubleshooting by Symptom (Handset)----------- 42
9.3.1. Check Point (Handset) ----------------------------- 42
10 Disassembly and Assembly Instructions--------------- 45
10.1. Disassembly Instructions------------------------------- 45
10.1.1. Base Unit ---------------------------------------------- 45
10.1.2. Handset ------------------------------------------------ 48
10.1.3. Charger Unit ------------------------------------------ 49
10.2. How to Replace the Handset LCD------------------- 50
11 Measurements and Adjustments -------------------------- 51
11.1. Equipment Required ------------------------------------ 51
11.2. The Setting Method of JIG----------------------------- 51
11.2.1. Connections (Base Unit) -------------------------- 51
11.2.2. How to install Batch file into P.C. ---------------- 52
11.2.3. Commands-------------------------------------------- 52
11.3. Adjustment Standard (Base Unit) -------------------- 53
11.3.1. Bottom View ------------------------------------------ 53
11.4. The Setting Method of JIG (Handset)--------------- 54
11.4.1. Connections ------------------------------------------ 54
11.4.2. How to install Batch file into P.C. ---------------- 55
11.4.3. Commands-------------------------------------------- 55
11.5. Adjustment Standard (Handset) ---------------------- 56
11.5.1. Component View ------------------------------------ 56
11.6. Things to Do after Replacing IC or X'tal ------------ 57
11.6.1. How to download the data ------------------------ 57
11.7. RF Specification ------------------------------------------ 59
11.7.1. Base Unit ---------------------------------------------- 59
11.7.2. Handset ------------------------------------------------ 59
11.8. How to Check the Handset Speaker or
Receiver ---------------------------------------------------- 60
11.9. Frequency Table (MHz)--------------------------------- 60
12 Miscellaneous---------------------------------------------------- 61
12.1. How to Replace the Flat Package IC --------------- 61
12.1.1. Preparation-------------------------------------------- 61
12.1.2. How to Remove the IC ----------------------------- 61
12.1.3. How to Install the IC -------------------------------- 62
12.1.4. How to Remove a Solder Bridge ---------------- 62
12.2. How to Replace the Shield Case--------------------- 63
12.2.1. Preparation-------------------------------------------- 63
12.2.2. Caution------------------------------------------------- 63
12.2.3. How to Remove the Shield Case---------------- 63
12.2.4. How to Install the Shield Case ------------------- 64
12.3. Terminal Guide of the ICs, Transistors and
Diodes ------------------------------------------------------ 65
12.3.1. Base Unit ---------------------------------------------- 65
12.3.2. Handset ------------------------------------------------ 65
13 Schematic Diagram -------------------------------------------- 67
13.1. For Schematic Diagram -------------------------------- 67
13.1.1. Base Unit (Base Unit (Main)) --------------------- 67
13.1.2. Handset (Handset (Main)) ------------------------ 67
13.2. Base Unit (Main) ----------------------------------------- 68
13.2.1. KX-TGC210------------------------------------------- 68
13.2.2. KX-TGC220------------------------------------------- 70
13.3. Base Unit (Operation)----------------------------------- 72
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