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Tweco 400 MST Arc Master User Manual

Page 86

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400MST

9

ADVANCED TROUBLESHOOTING

9 – 49

4) Cut off one snap band. Cut off one snap band that ties together the harness of CN7 on PCB17 (WK-

5699) and the harness wired to the rear side. Cut off one snap band that ties together the harness on the
secondary side of the transformer (T1) and the harness of CN7/CN1 on PCB17 (WK-5699).

5) Remove five snap bands.

When reinstalling the receptacle, bend both the harnesses of CN6/CN7/CN9/CN10 on PCB17 (WK-
5699) and the ones of N-pin/L-pin of the 19-pin receptacle (CON2), and then use snap bands to tie
together the bent harnesses and the ones of CN1/CN5/CN8 on PCB17 (WK-5699).

CN1

CN7

1

2

3

CN1

CN5

CN7

CN8

CN10

CN6

CN9