Table Of Contents - Panasonic KX-TG3711BXB Service Manual

TABLE OF CONTENTS

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
3 Specifications ----------------------------------------------------- 6
4 Technical Descriptions ----------------------------------------- 7
4.1. FHSS Description ----------------------------------------- 7
4.2. Block Diagram (Base Unit_Main)---------------------- 9
4.3. Tel Interface Circuit---------------------------------------10
4.4. Block Diagram (Base Unit_RF Part) ----------------- 11
4.5. Circuit Operation (Base Unit) --------------------------12
4.6. Block Diagram (Handset)-------------------------------18
4.7. Block Diagram (Handset_RF Part)-------------------19
4.8. Circuit Operation (Handset)----------------------------20
4.9. Behavior of Electric Power Failure -------------------22
4.10. Circuit Operation (Charger Unit) ----------------------22
4.11. Signal Route -----------------------------------------------23
5 Location of Controls and Components ------------------24
6 Installation Instructions ---------------------------------------24
7 Operating Instructions-----------------------------------------24
8 Test Mode ----------------------------------------------------------25
8.1. Engineering Mode ----------------------------------------25
8.2. Copying Phonebook Items when Repairing -------29
9 Service Mode -----------------------------------------------------31
9.1. How to Clear User Setting------------------------------31
10 Troubleshooting Guide ----------------------------------------32
10.1. Troubleshooting Flowchart -----------------------------32
11 Disassembly and Assembly Instructions ---------------41
11.1. Disassembly Instructions -------------------------------41
11.2. How to Replace the Handset LCD -------------------45
12 Measurements and Adjustments---------------------------46
12.1. Equipment Required -------------------------------------46
12.2. The Setting Method of JIG -----------------------------46
12.3. Adjustment of Base Unit --------------------------------50
12.4. Adjustment of Handset ----------------------------------51
12.5. Adjustment Standard (Base Unit)---------------------54
12.6. Adjustment Standard (Charger Unit)-----------------55
12.7. Adjustment Standard (Handset) ----------------------56
12.8. Things to Do after Replacing IC or X'tal ------------57
12.9. How to Check the Handset Receiver ----------------59
12.10. Frequency Table (MHz) ---------------------------------60
13 Miscellaneous ----------------------------------------------------61
13.1. How to Replace the LLP (Leadless Leadframe
Package) IC------------------------------------------------61
13.2. How to Replace the Flat Package IC ----------------63
13.3. How to Replace the Shield Case ---------------------65
13.4. Terminal Guide of the ICs, Transistors and
Diodes -------------------------------------------------------67
14 Schematic Diagram ---------------------------------------------69
14.1. For Schematic Diagram---------------------------------69
14.2. Schematic Diagram (Base Unit_Main) --------------70
14.3. Schematic Diagram (Base Unit_RF)-----------------72
14.4. Schematic Diagram (Handset_Main) ----------------74
14.5. Schematic Diagram (Charger Unit) -----------------76
15 Printed Circuit Board-------------------------------------------77
15.1. Circuit Board (Base Unit_Main) -----------------------77
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15.2. Circuit Board (Handset_Main) ------------------------ 79
15.3. Circuit Board (Charger Unit)--------------------------- 81
16 Exploded View and Replacement Parts List ----------- 82
16.1. Cabinet and Electrical Parts (Base Unit) ----------- 82
16.2. Cabinet and Electrical Parts (Handset)------------- 83
16.3. Cabinet and Electrical Parts (Charger Unit) ------- 84
16.4. Accessories------------------------------------------------ 85
16.5. Replacement Parts List--------------------------------- 86
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KX-TG3711BX/KX-TG3712BX/KX-TG3719BX/KX-TGA371BX
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