Subsystem test and replacement procedures, 1 preparation, 2 test and replacement parts list – Tweco 400 MST Arc Master User Manual
Page 54
400MST
9
ADVANCED TROUBLESHOOTING
9 – 17
2
Subsystem Test and Replacement Procedures
2.1 Preparation
This section provides specific procedures for verifying the operation and replacement of each subsystem
within the power supply.
Before undertaking any of these procedures, eliminate the obvious first-visually inspect the suspect sub-
system for physical damage, overheating, and loose connections.
2.2 Test and Replacement Parts List
2
4
1
8
9
3
5
6
7
No.
DWG No.
Parts name
Reference page Part No.
1
PCB2
Print Circuit Board (WK-5597)
9-23 W7001313
2
PCB3
Print Circuit Board (WK-5548)
9-24 W7001314
3
PCB4
Print Circuit Board (WK-4819)
9-26 10-6635
4
PCB5
Print Circuit Board (WK-5696)
9-26 W7001315
5
PCB7
Print Circuit Board (WK-5689)
9-24 W7001317
6
PCB12
Print Circuit Board (WK-5527)
9-28
W7001744
7
PCB13
Print Circuit Board (WK-5528)
9-29 W7001320
8
PCB14
Print Circuit Board (WK-5594)
9-30 W7001321
9
PCB16
Print Circuit Board (WK-4917)
9-32 10-6740