Lincoln Electric SVM123-A service manual Active SCR Test

Models: SVM123-A

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F-35

TROUBLESHOOTING & REPAIR

F-35

 

 

 

 

 

 

ACTIVE SCR TEST

 

 

1. Remove main supply power to the

2. Remove all Molex plugs from the

 

 

DC-1000.

Firing Board and Control Board.

 

 

 

 

 

 

See Figure F.15.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FIRING BOARD

CONTROL BOARD

FIGURE F.15 - Firing Board and Control Board Molex Plug Locations

IDEALARC DC-1000

Page 75
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Lincoln Electric SVM123-A service manual Active SCR Test