Read Panasonic KX-T7665UA Service Manual online
2
KX-T7665UA
TABLE OF CONTENTS
PAGE
PAGE
1 Safety Precautions -----------------------------------------------3
1.1. For Service Technicians ---------------------------------3
2 Warning --------------------------------------------------------------3
2.1. About Lead Free Solder (PbF: Pb free) --------------3
3 Specifications ------------------------------------------------------4
4 Technical Descriptions------------------------------------------5
4 Technical Descriptions------------------------------------------5
4.1. Block Diagram ----------------------------------------------5
4.2. Circuit Operations ------------------------------------------6
4.2. Circuit Operations ------------------------------------------6
5 Location of Controls and Components------------------ 14
6 Installation Instructions--------------------------------------- 15
6 Installation Instructions--------------------------------------- 15
6.1. Connection------------------------------------------------- 15
7 Troubleshooting Guide---------------------------------------- 16
7.1. No Operation ---------------------------------------------- 16
7.2. LCD Does Not Operate--------------------------------- 17
7.3. Handset Does Not Work-------------------------------- 18
7.4. Speaker-Phone Trouble -------------------------------- 19
7.5. DXDP-DPT Does Not Work --------------------------- 20
7.2. LCD Does Not Operate--------------------------------- 17
7.3. Handset Does Not Work-------------------------------- 18
7.4. Speaker-Phone Trouble -------------------------------- 19
7.5. DXDP-DPT Does Not Work --------------------------- 20
8 Disassembly and Assembly Instructions--------------- 21
8.1. Disassembly Instructions------------------------------- 21
9 Miscellaneous --------------------------------------------------- 22
9.1. Terminal Guide of ICs, Transistors and Diodes -- 22
9.2. How To Replace a Flat Package IC----------------- 23
9.2. How To Replace a Flat Package IC----------------- 23
10 Schematic Diagram -------------------------------------------- 24
10.1. --------------------------------------------------------------- 24
10.2. Waveform-------------------------------------------------- 26
10.2. Waveform-------------------------------------------------- 26
11 Printed Circuit Board------------------------------------------ 30
11.1. Component View----------------------------------------- 30
11.2. Bottom View----------------------------------------------- 31
11.2. Bottom View----------------------------------------------- 31
12 Appendix Information of Schematic Diagram -------- 32
13 Exploded View and Replacement Parts List----------- 33
13 Exploded View and Replacement Parts List----------- 33
13.1. IC Data ----------------------------------------------------- 33
13.2. Cabinet and Electrical Parts Location -------------- 37
13.3. Accessories and Packing Materials----------------- 38
13.4. Replacement Parts List -------------------------------- 39
13.2. Cabinet and Electrical Parts Location -------------- 37
13.3. Accessories and Packing Materials----------------- 38
13.4. Replacement Parts List -------------------------------- 39
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