Lincoln Electric V250-S service manual Input Rectifier Test, Test Procedure

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F-16 TROUBLESHOOTING & REPAIR F-16

INPUT RECTIFIER TEST (continued)

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TEST PROCEDURE

1.Remove main input power to the V250-S.

2.Perform Filter Capacitor Discharge Procedure detailed in Maintenance Section.

3.Locate Input Rectifier (D9) and lead locations.

4.With the Phillips head screwdriver remove leads #207, 207A and #209 from the rectifier. See Figure F.2.

5.Use the analog ohmmeter to perform the tests detailed in Table F.2. See wiring diagram.

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#207

#207A

A

B

C

#209

Figure F.2 Input Rectifier and Leads.

INVERTEC V250-S