KX-TDE620BX (serv.man2) - Panasonic PBX Service Manual (repair manual). Page 2

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2
KX-TDE620BX
TABLE OF CONTENTS
PAGE
PAGE
1 Safety Precautions -----------------------------------------------3
1.1. For Service Technicians  ---------------------------------3
1.2. Insulation Resistance Test -------------------------------3
2 Warning --------------------------------------------------------------3
2.1. Battery Caution ---------------------------------------------3
2.2. Caution--------------------------------------------------------3
2.3. Discarding of P. C. Board --------------------------------3
2.4. About Lead Free Solder (PbF: Pb free) --------------4
2.4.1. Suggested PbF Solder -------------------------------4
3 Specifications ------------------------------------------------------5
3.1. General Description ---------------------------------------5
3.2. Characteristics ----------------------------------------------5
4 Technical Descriptions------------------------------------------6
4.1. BUS-S Block Diagram ------------------------------------6
4.2. BUS-S Card Circuit Operation --------------------------7
4.2.1. BUS-S CARD-------------------------------------------7
4.3. Back Board Circuit Operation ------------------------- 11
4.4. Outline ------------------------------------------------------ 12
4.4.1. Genral Description ---------------------------------- 12
4.4.2. BUS-S Card------------------------------------------- 12
4.4.3. Back Board-------------------------------------------- 12
4.4.4. Power Supply Unit ---------------------------------- 12
4.4.5. System Control--------------------------------------- 13
4.4.6. Back Board Signal Connection Diagram ------ 16
5 Location of Controls and Components------------------ 19
5.1. Names and Locations----------------------------------- 19
6 Installation Instructions--------------------------------------- 20
6.1. System Configurations---------------------------------- 20
6.2. Expanded System---------------------------------------- 21
6.3. System Capacity ----------------------------------------- 24
7 Troubleshooting Guide---------------------------------------- 25
7.1. BUS-S Card ----------------------------------------------- 25
8 Service Fixture & Tools --------------------------------------- 31
9 Disassembly and Assembly Instructions
--------------- 32
9.1. BUS-S Card ----------------------------------------------- 32
9.2. Back Board ------------------------------------------------ 33
10 Miscellaneous ---------------------------------------------------- 35
10.1. How To Replace a Flat Package IC ----------------- 35
10.1.1. Preparation-------------------------------------------- 35
10.1.2. Removal Procedure--------------------------------- 35
10.1.3. Procedure --------------------------------------------- 35
10.1.4. Removing Solder From Between Pins --------- 35
10.2. Terminal Guide of the ICs Transistors and
Diodes------------------------------------------------------- 36
11 Schematic Diagram--------------------------------------------- 37
11.1. Block Diagram -------------------------------------------- 37
11.2. BUS-S Card No.1 ---------------------------------------- 38
11.3. BUS-S Card No.2 ---------------------------------------- 42
11.4. BUS-S Card No.3 ---------------------------------------- 46
11.5. BUS-S Card No.4 ---------------------------------------- 50
11.6. BUS-S Card No.5 ---------------------------------------- 52
11.7. BUS-S Card No.6 ---------------------------------------- 54
11.8. BUS-S Card No.7 ---------------------------------------- 56
11.9. BB-EXP Card No.1 -------------------------------------- 58
11.10. BB-EXP Card No.2 -------------------------------------- 60
11.11. BB-EXP Card No.3 -------------------------------------- 62
11.12. Waveform -------------------------------------------------- 64
12 Printed Circuit Board ------------------------------------------ 65
12.1. BUS-S Board --------------------------------------------- 65
12.1.1. Component View------------------------------------ 65
12.2. BB-EXP Board-------------------------------------------- 66
12.2.1. Component View------------------------------------ 66
13 Appendix Information of Schematic Diagram -------- 67
14 Exploded View and Replacement Parts List
----------- 68
14.1. IC Data ----------------------------------------------------- 68
14.1.1. CPU (IC200) ----------------------------------------- 68
14.1.2. ASIC (IC101)----------------------------------------- 72
14.1.3. SYSTEM TSW (IC501) ---------------------------- 76
14.1.4. CIRCLINK (IC401)---------------------------------- 80
14.1.5. FPGA (IC402)---------------------------------------- 82
14.2. Cabinet and Electric Parts----------------------------- 84
14.3. Accessories and Packing Materials----------------- 86
14.4. Replacement Parts List -------------------------------- 87
14.4.1. Cabinet and Electrical Parts---------------------- 87
14.4.2. Accessories and Packing Materials ------------ 87
14.4.3. Main Board Parts ----------------------------------- 88
14.4.4. Back/LED Board Parts----------------------------- 93
14.4.5. Tools---------------------------------------------------- 93
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