Lincoln Electric POWER WAVE C300 Service Manual page 58

F-39
POWER FACTOR CONTROL BOARD TEST PROCEDURE (continued)
TROUBLESHOOTING AND REPAIR
FIGURE F.12 – PLUG J23
12 11
5
6
PLUG J27
6
3
FIGURE F.13 – SWITCH BOARD TEST POINTS
POWER WAVE® C300
10 8 7
9
4 3 2 1
5 4
2 1
F-39
B12
B48