Table Of Contents - Panasonic KX-TG3521BXB Service Manual

TABLE OF CONTENTS

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. FHSS Description ----------------------------------------- 7
4.2. Explanation of Link Data Communication ----------10
4.3. Block Diagram (Base Unit_Main)--------------------- 11
4.4. Block Diagram (Base Unit_RF Part) -----------------12
4.5. Circuit Operation (Base Unit) --------------------------13
4.6. Block Diagram (Handset)-------------------------------20
4.7. Block Diagram (Handset_RF Part)-------------------21
4.8. Circuit Operation (Handset)----------------------------22
4.9. Circuit Operation (RF Part)-----------------------------26
4.10. Circuit Operation (Charger Unit) ----------------------29
4.11. Signal Route -----------------------------------------------30
5 Location of Controls and Components ------------------31
5.1. Controls -----------------------------------------------------31
5.2. Display ------------------------------------------------------31
6 Installation Instructions ---------------------------------------32
6.1. Setting Up the Base Unit -------------------------------32
6.2. Setting Up the Handset ---------------------------------32
6.3. Battery Installation/Replacement ---------------------32
6.4. Battery Charge --------------------------------------------33
7 Operation Instructions-----------------------------------------34
7.1. Programmable Settings ---------------------------------34
7.2. Copying Handset Phonebook Items -----------------36
7.3. Dial Lock ----------------------------------------------------36
7.4. Error Messages -------------------------------------------37
7.5. Troubleshooting -------------------------------------------38
8 Test Mode ----------------------------------------------------------40
8.1. Adjustment and Test Mode Flow Chart -------------40
9 Service Mode -----------------------------------------------------50
9.1. How to Clear User Setting------------------------------50
9.2. Copying Phonebook Items when Repairing -------51
9.3. Replacing P.C. Board of Base Unit with Used
P.C. Board --------------------------------------------------53
10 Troubleshooting Guide ----------------------------------------55
10.1. Troubleshooting Flowchart -----------------------------55
10.2. How to Replace the Flat Package IC ----------------66
10.3. How to Replace the LLP (Leadless Leadframe
Package) IC------------------------------------------------68
11 Disassembly and Assembly Instructions ---------------70
11.1. Disassembly Instructions -------------------------------70
11.2. How to Replace the Handset LCD -------------------73
11.3. Antenna soldering work ---------------------------------74
12 Measurements and Adjustments---------------------------75
12.1. Things to Do after Replacing IC or X'tal ------------75
12.2. Base Unit Reference Drawing-------------------------76
12.3. Handset Reference Drawing---------------------------78
12.4. Frequency Table ------------------------------------------79
13 Schematic Diagram ---------------------------------------------81
13.1. For Schematic Diagram---------------------------------81
13.2. Schematic Diagram (Base Unit_Main) --------------82
13.3. Schematic Diagram (Base Unit_RF Part) ----------84
13.4. Schematic Diagram (Handset_Main) ----------------86
KX-TG3521BXB/KX-TG3521BXS/KX-TG3522BXB/KX-TG3522BXS/KX-TGA351BXB/KX-TGA351BXS
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13.5. Schematic Diagram (Handset_RF Part)------------ 88
13.6. Schematic Diagram (Charger Unit)------------------ 89
14 Printed Circuit Board ------------------------------------------ 91
14.1. Circuit Board (Base Unit_Main) ---------------------- 91
14.2. Circuit Board (Base Unit_RF Part)------------------- 93
14.3. Circuit Board (Base Unit_Antenna)------------------ 94
14.4. Circuit Board (Handset_Main) ------------------------ 95
14.5. Circuit Board (Handset_RF Part) -------------------- 97
14.6. Circuit Board (Charger Unit)--------------------------- 98
15 Appendix Information of Schematic Diagram --------- 99
15.1. CPU Data (Base Unit) ---------------------------------- 99
15.2. CPU Data (Handset) ---------------------------------- 100
15.3. Explanation of IC Terminals (RF Part) ------------ 101
15.4. Terminal Guide of the ICs, Transistors and
Diodes ---------------------------------------------------- 102
16 Exploded View and Replacement Parts List --------- 103
16.1. Cabinet and Electrical Parts (Base Unit) --------- 103
16.2. Cabinet and Electrical Parts (Handset)----------- 104
16.3. Cabinet and Electrical Parts (Charger Unit) ----- 105
16.4. Accessories and Packing Materials --------------- 106
16.5. Replacement Parts List------------------------------- 109
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