Lincoln Electric V250-S Welder User Manual


 
F-16
TROUBLESHOOTING & REPAIR
F-16
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.
INPUT RECTIFIER TEST (continued)
INVERTEC V250-S
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#207
#207A
#209
A
B
C
Figure F.2 Input Rectifier and Leads.