Panasonic KX-TG7100HGS, Service Manual

Page: 3 / 79

3
KX-TG7100HGS/KX-TG7102HGS/KX-TGA711FXS
TABLE OF CONTENTS
PAGE PAGE
1 Safety Precaution ------------------------------------------------ 4
1.1. For Service Technicians --------------------------------- 4
2 Warning -------------------------------------------------------------- 4
2.1. Battery Caution--------------------------------------------- 4
2.2. About Lead Free Solder (Pbf: Pb free)--------------- 4
3 Specifications ----------------------------------------------------- 6
4 Technical Descriptions ----------------------------------------- 7
4.1. Block Diagram (Base Unit) ------------------------------ 7
4.2. Circuit Operation (Base Unit)--------------------------- 8
4.3. Block Diagram (Handset)-------------------------------11
4.4. Circuit Operation (Handset)----------------------------12
4.5. Circuit Operation (Charger Unit) ----------------------12
4.6. Signal Route -----------------------------------------------13
5 Location of Controls and Components ------------------ 14
5.1. Controls -----------------------------------------------------14
6 Installation Instructions --------------------------------------- 14
6.1. Connections------------------------------------------------14
6.2. Battery-------------------------------------------------------15
7 Operation Instructions ----------------------------------------- 16
7.1. Base Unit Settings----------------------------------------16
7.2. Handset Settings -----------------------------------------17
7.3. Registering a Handset to the Base Unit ------------18
7.4. For Service Hint-------------------------------------------19
8 Service Mode ----------------------------------------------------- 20
8.1. Engineering Mode ----------------------------------------20
9 Troubleshooting Guide ---------------------------------------- 24
9.1. Troubleshooting Flowchart -----------------------------24
9.2. Troubleshooting by Symptom (Base Unit and
Charger Unit) ----------------------------------------------32
9.3. Troubleshooting by Symptom (Handset) -----------36
9.4. How to Replace the Flat Package IC ----------------39
10 Disassembly and Assembly Instructions --------------- 41
10.1. Disassembly Instructions -------------------------------41
10.2. How to Replace the Handset LCD -------------------44
11 Measurements and Adjustments --------------------------- 45
11.1. The Setting Method of JIG (Base Unit) -------------45
11.2. Adjustment Standard (Base Unit)---------------------47
11.3. Adjustment Standard (Charger Unit)-----------------48
11.4. The Setting Method of JIG (Handset) ---------------49
11.5. Adjustment Standard (Handset) ----------------------51
11.6. Things to Do after Replacing IC ----------------------52
11.7. RF Specification-------------------------------------------53
11.8. How to Check the Handset Speaker of
Receiver ----------------------------------------------------54
11.9. Frequency Table (MHz) ---------------------------------54
12 Schematic Diagram --------------------------------------------- 55
12.1. For Schematic Diagram---------------------------------55
12.2. Schematic Diagram (Base Unit) ----------------------56
12.3. Schematic Diagram (Handset) ------------------------58
12.4. Schematic Diagram (Charger Unit) ------------------60
13 Printed Circuit Board ------------------------------------------- 61
13.1. Circuit Board (Base Unit) -------------------------------61
13.2. Circuit Board (Handset) ---------------------------------63
13.3. Circuit Board (Charger Unit) ---------------------------65
14 Appendix Information of Schematic Diagram --------- 66
14.1. CPU Data (Base Unit) -----------------------------------66
14.2. CPU Data (Handset)-------------------------------------68
14.3. Terminal Guide of the ICs, Transistors and
Diodes ------------------------------------------------------ 70
15 Exploded View and Replacement Parts List ----------- 71
15.1. Cabinet and Electrical Parts (Base Unit) ----------- 71
15.2. Cabinet and Electrical Parts (Handset)------------- 72
15.3. Cabinet and Electrical Parts (Charger Unit) ------- 73
15.4. Accessories and Packing Materials ----------------- 74
15.5. Replacement Parts List--------------------------------- 76