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V205-T AC/DC
TROUBLESHOOTING & REPAIR
F-7 F-7
Observe Safety Guidelines
TROUBLESHOOTING GUIDE
detailed in the beginning of this manual.
CAUTION
If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, con-
tact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed.
Call 1-800-833-9353(WELD).
FUNCTION PROBLEMS
(SYMPTOMS)
POSSIBLE AREAS OF
MISADJUSTMENT(S)
RECOMMENDED
COURSE OF ACTION
FUNCTION PROBLEMS
No current regulation in the Stick
mode. Low open circuit voltage.
1. Make sure the machine is set-
up and configured correctly for
the Stick mode,
1. The Superimposition Board may
be faulty
2. The Output Module Transistor
Board may be faulty. See the
Secondary Power Board Test
and Wiring Diagram
There is no response to changes to
the output control settings. No cur-
rent regulation in all modes.
1. Make sure the correct input
voltage is applied to the
machine. 230 or 115VAC.
1. The Control/Display board may
be faulty.