KX-TG1077UAB, KX-TG1077UAJ, KX-TG1077UAW, KX-TGA107UAB, KX-TGA107UAJ, KX-TGA107UAW - Panasonic Telephone Service Manual (repair manual). Page 3

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KX-TG1077UAB/KX-TG1077UAJ/KX-TG1077UAW/KX-TGA107UAB/KX-TGA107UAJ/KX-TGA107UAW
TABLE OF CONTENTS
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)-------------------------------- 9
4.4. Circuit Operation (Handset)----------------------------10
4.5. Signal Flow-------------------------------------------------11
5 Location of Controls and Components ------------------12
5.1. Controls -----------------------------------------------------12
6 Installation Instructions ---------------------------------------12
6.1. Connections------------------------------------------------12
6.2. Battery-------------------------------------------------------13
7 Operation Instructions-----------------------------------------14
7.1. Guide to telephone settings----------------------------14
7.2. Handset Registration ------------------------------------14
7.3. For Service Hint-------------------------------------------14
8 Service Mode -----------------------------------------------------15
8.1. Engineering Mode ----------------------------------------15
8.2. How to Clear User Setting------------------------------19
9 Troubleshooting Guide ----------------------------------------20
9.1. How to Replace the Flat Package IC ----------------21
10 Disassembly and Assembly Instructions ---------------23
10.1. Disassembly Instructions -------------------------------23
11 Schematic Diagram ---------------------------------------------25
11.1. For Schematic Diagram---------------------------------25
11.2. Schematic Diagram (Base Unit_Main) --------------26
11.3. Schematic Diagram (Base Unit_Operation) -------29
11.4. Schematic Diagram (Handset) ------------------------30
12 Printed Circuit Board-------------------------------------------33
12.1. Circuit Board (Base Unit) -------------------------------33
12.2. Circuit Board (Base Unit_Page key) -----------------35
12.3. Circuit Board (Handset) ---------------------------------37
13 Appendix Information of Schematic Diagram ---------39
13.1. Terminal Guide of the ICs, Transistors and
Diodes -------------------------------------------------------39
14 Exploded View and Replacement Parts List -----------40
14.1. Cabinet and Electric Parts (Base Unit)--------------40
14.2. Cabinet and Electric Parts (Handset)----------------41
14.3. Accessories and Packing Materials------------------42
14.4. Replacement Part List-----------------------------------43
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