Lincoln Electric INVERTEC V250-S - Manual (Page 57)

F-25 TROUBLESHOOTING & REPAIR F-25
5. If more than 200 ohms is measured
the output diodes are not “shorted”.
6. If less than 200 ohms is measured,
one or more output diodes or snub-
bers may be shorted or “leaky”.
7. Perform Filter Capacitor Discharge
Procedure detailed in Maintenance
Section.
8. Locate output diodes and snubbers.
See Figure F.6. for machine codes
10102 and 10103 only. See Figure
F.7. for machine codes 10187 and
10188 only.
9. Test all output diodes and snubbers
(if used) individually.
OUTPUT DIODES TEST (continued)
INVERTEC V250-S
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O
I
INVERTEC V250-S ®
S
- +
+ PROBE
- PROBE
Figure F.5 Meter Probes.