Read Panasonic KX-TDA6381X / KX-TDA6381SX Service Manual online
2
KX-TDA6381X/KX-TDA6381SX
TABLE OF CONTENTS
PAGE
PAGE
1 Safety Precautions -----------------------------------------------3
1.1. For Service Technicians ---------------------------------3
2 Warning --------------------------------------------------------------3
2.1. Battery Caution ---------------------------------------------3
2.2. Caution--------------------------------------------------------3
2.3. About Lead Free Solder (PbF: Pb free) --------------3
2.2. Caution--------------------------------------------------------3
2.3. About Lead Free Solder (PbF: Pb free) --------------3
2.3.1. Suggested PbF Solder -------------------------------4
2.4. Discarding of P. C. Board --------------------------------4
3 Specifications ------------------------------------------------------5
4 Technical Descriptions------------------------------------------6
4 Technical Descriptions------------------------------------------6
4.1. Block Diagram ----------------------------------------------6
4.1.1. Block Diagram of Main Board ----------------------6
4.1.2. Block Diagram of Sub Board -----------------------7
4.1.2. Block Diagram of Sub Board -----------------------7
4.2. Circuit Operations ------------------------------------------8
4.2.1. Description of Control System Circuits ----------8
4.2.2. Description of Functions and Circuits ---------- 11
4.2.3. Power Supply Circuit ------------------------------- 17
4.2.2. Description of Functions and Circuits ---------- 11
4.2.3. Power Supply Circuit ------------------------------- 17
5 Location of Controls and Components------------------ 19
5.1. Name and Locations ------------------------------------ 19
5.2. Instlling/Removing the Optional Service Cards--- 20
5.2. Instlling/Removing the Optional Service Cards--- 20
6 Troubleshooting Guide---------------------------------------- 26
6.1. In Case of the Main Board is Defective ------------ 26
6.2. In Case of the Sub Board is Defective ------------- 31
6.2. In Case of the Sub Board is Defective ------------- 31
7 Miscellaneous ---------------------------------------------------- 35
7.1. How To Replace a Flat Package IC ----------------- 35
7.1.1. Preparation-------------------------------------------- 35
7.1.2. Removal Procedure--------------------------------- 35
7.1.3. Procedure --------------------------------------------- 35
7.1.4. Removing Solder From Between Pins --------- 35
7.1.2. Removal Procedure--------------------------------- 35
7.1.3. Procedure --------------------------------------------- 35
7.1.4. Removing Solder From Between Pins --------- 35
7.2. Terminal Guide of the ICs, Transistors and
Diodes------------------------------------------------------- 36
7.2.1. Main Board-------------------------------------------- 36
7.2.2. Sub Board --------------------------------------------- 37
7.2.2. Sub Board --------------------------------------------- 37
8 Schematic Diagram--------------------------------------------- 38
8.1. Main Board------------------------------------------------- 38
8.1.1. No.1 ----------------------------------------------------- 38
8.1.2. No.2 ----------------------------------------------------- 40
8.1.3. No.3 ----------------------------------------------------- 42
8.1.4. No.4 ----------------------------------------------------- 44
8.1.2. No.2 ----------------------------------------------------- 40
8.1.3. No.3 ----------------------------------------------------- 42
8.1.4. No.4 ----------------------------------------------------- 44
8.2. Sub Board-------------------------------------------------- 46
8.2.1. No.1 ----------------------------------------------------- 46
8.2.2. No.2 ----------------------------------------------------- 48
8.2.2. No.2 ----------------------------------------------------- 48
8.3. Waveform -------------------------------------------------- 50
8.3.1. Main Board-------------------------------------------- 50
8.3.2. Sub Board --------------------------------------------- 53
8.3.2. Sub Board --------------------------------------------- 53
9 Printed Circuit Board ------------------------------------------ 55
9.1. Main Board------------------------------------------------- 55
9.1.1. Component View ------------------------------------ 55
9.1.2. Bottom View ------------------------------------------ 56
9.1.2. Bottom View ------------------------------------------ 56
9.2. Sub Board-------------------------------------------------- 57
9.2.1. Component View ------------------------------------ 57
9.2.2. Bottom View ------------------------------------------ 58
9.2.2. Bottom View ------------------------------------------ 58
10 Appendix Information of Schematic Diagram --------- 59
11 Exploded View and Replacement Parts List ----------- 60
11.1. IC Data------------------------------------------------------ 60
11.1.1. IC3 (ASIC)--------------------------------------------- 60
11.1.2. IC401(CPU) I/O Port------------------------------- 62
11.1.2. IC401(CPU) I/O Port------------------------------- 62
11.1.3. IC6, IC7 of Main Board and IC6, IC7 of
Sub Board(CODEC)-------------------------------- 63
11.2. Cabinet and Electrical Parts Location -------------- 64
11.3. Accessories and Packing Materials ----------------- 65
11.4. Peplacement Part List ---------------------------------- 66
11.3. Accessories and Packing Materials ----------------- 65
11.4. Peplacement Part List ---------------------------------- 66
11.4.1. Cabinet and Electrical Parts --------------------- 66
11.4.2. Accessories and Packing Materials ------------ 66
11.4.3. Main Board Parts ----------------------------------- 66
11.4.4. Sub Board Parts------------------------------------- 72
11.4.2. Accessories and Packing Materials ------------ 66
11.4.3. Main Board Parts ----------------------------------- 66
11.4.4. Sub Board Parts------------------------------------- 72
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