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KX-TG8207UA/KX-TG8208UA/KX-TGA820RU/KX-TGA820UA
TABLE OF CONTENTS
PAGE
PAGE
1 Safety Precautions----------------------------------------------- 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
2.3. Discarding of P. C. Board-------------------------------- 5
2.2. About Lead Free Solder (Pbf: Pb free)--------------- 4
2.3. Discarding of P. C. Board-------------------------------- 5
3 Specifications ----------------------------------------------------- 6
4 Technical Descriptions ----------------------------------------- 7
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) ----------------------13
4.6. Signal Route -----------------------------------------------14
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) ----------------------13
4.6. Signal Route -----------------------------------------------14
5 Location of Controls and Components ------------------15
5.1. Controls -----------------------------------------------------15
6 Installation Instructions ---------------------------------------15
6.1. Connections------------------------------------------------15
6.2. Battery-------------------------------------------------------16
6.2. Battery-------------------------------------------------------16
7 Operation Instructions-----------------------------------------17
7.1. Base Unit Settings----------------------------------------17
7.2. Handset Settings -----------------------------------------18
7.3. Registering a Handset to a Base Unit---------------19
7.4. Copying Phonebook Entries ---------------------------20
7.5. Dialling Mode (Tone/Pulse) ----------------------------20
7.6. Error Message---------------------------------------------20
7.7. Troubleshooting-------------------------------------------21
7.8. For Service Hint-------------------------------------------23
7.2. Handset Settings -----------------------------------------18
7.3. Registering a Handset to a Base Unit---------------19
7.4. Copying Phonebook Entries ---------------------------20
7.5. Dialling Mode (Tone/Pulse) ----------------------------20
7.6. Error Message---------------------------------------------20
7.7. Troubleshooting-------------------------------------------21
7.8. For Service Hint-------------------------------------------23
8 Service Mode -----------------------------------------------------24
8.1. Engineering Mode ----------------------------------------24
8.2. Copying Phonebook Items when Repairing -------28
8.3. How to Clear User Setting------------------------------30
8.2. Copying Phonebook Items when Repairing -------28
8.3. How to Clear User Setting------------------------------30
9 Troubleshooting Guide ----------------------------------------31
9.1. Troubleshooting Flowchart -----------------------------31
9.2. Troubleshooting by Symptom (Base Unit and
9.2. Troubleshooting by Symptom (Base Unit and
Charger Unit) ----------------------------------------------43
9.3. Troubleshooting by Symptom (Handset) -----------46
9.4. How to Replace the Flat Package IC----------------49
9.5. How to Replace the LLP (Leadless Leadframe
9.4. How to Replace the Flat Package IC----------------49
9.5. How to Replace the LLP (Leadless Leadframe
Package) IC------------------------------------------------51
10 Disassembly and Assembly Instructions ---------------53
10.1. Disassembly Instructions -------------------------------53
10.2. Assembly Instructions -----------------------------------57
10.2. Assembly Instructions -----------------------------------57
11 Measurements and Adjustments---------------------------58
11.1. The Setting Method of JIG (Base Unit) -------------58
11.2. Adjustment Standard (Base Unit)---------------------60
11.3. Adjustment Standard (Charger Unit)-----------------61
11.4. The Setting Method of JIG (Handset) ---------------62
11.5. Adjustment Standard (Handset) ----------------------64
11.6. Things to Do after Replacing IC or X'tal ------------65
11.7. RF Specification-------------------------------------------67
11.8. How to Check the Handset Speaker or
11.2. Adjustment Standard (Base Unit)---------------------60
11.3. Adjustment Standard (Charger Unit)-----------------61
11.4. The Setting Method of JIG (Handset) ---------------62
11.5. Adjustment Standard (Handset) ----------------------64
11.6. Things to Do after Replacing IC or X'tal ------------65
11.7. RF Specification-------------------------------------------67
11.8. How to Check the Handset Speaker or
Receiver ----------------------------------------------------68
11.9. Frequency Table (MHz) ---------------------------------68
12 Schematic Diagram ---------------------------------------------69
12.1. For Schematic Diagram---------------------------------69
12.2. Schematic Diagram (Base Unit) ----------------------70
12.3. Schematic Diagram (Handset) ------------------------72
12.2. Schematic Diagram (Base Unit) ----------------------70
12.3. Schematic Diagram (Handset) ------------------------72
12.4. Schematic Diagram (Charger Unit)------------------ 74
13 Printed Circuit Board ------------------------------------------ 75
13.1. Circuit Board (Base Unit)------------------------------- 75
13.2. Circuit Board (Handset) -------------------------------- 77
13.3. Circuit Board (Charger Unit)--------------------------- 79
13.2. Circuit Board (Handset) -------------------------------- 77
13.3. Circuit Board (Charger Unit)--------------------------- 79
14 Appendix Information of Schematic Diagram --------- 80
14.1. CPU Data (Base Unit) ---------------------------------- 80
14.2. CPU Data (Handset) ------------------------------------ 82
14.3. Terminal Guide of the ICs, Transistors and
14.2. CPU Data (Handset) ------------------------------------ 82
14.3. Terminal Guide of the ICs, Transistors and
Diodes ------------------------------------------------------ 84
15 Exploded View and Replacement Parts List ----------- 85
15.1. Cabinet and Electrical Parts (Base Unit) ----------- 85
15.2. Cabinet and Electrical Parts (Handset)------------- 86
15.3. Cabinet and Electrical Parts (Charger Unit) ------- 87
15.4. Accessories and Packing Materials ----------------- 88
15.5. Replacement Part List ---------------------------------- 91
15.2. Cabinet and Electrical Parts (Handset)------------- 86
15.3. Cabinet and Electrical Parts (Charger Unit) ------- 87
15.4. Accessories and Packing Materials ----------------- 88
15.5. Replacement Part List ---------------------------------- 91
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