Lincoln Electric IDEALARC DC-655 Service Manual page 52

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Observe Safety Guidelines
detailed in the beginning of this manual.
PROBLEMS
(SYMPTOMS)
The optional digital meter is not
working properly and/or the dis-
play is erratic.
The analog meters are not reading
correctly.
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.
TROUBLESHOOTING & REPAIR
POSSIBLE AREAS OF
MISADJUSTMENT(S)
FUNCTION PROBLEMS
1. Make certain plugs P12 and
P13 are securely plugged into
the digital meter PC board.
Also make sure plug P3 is
securely plugged into the con-
trol board.
1. Make sure plug P3 is securely
plugged into the control board
and plug J14 is securely seated
in the plug assembly from the
control board.
CAUTION
IDEALARC DC-655
TROUBLESHOOTING GUIDE
RECOMMENDED
COURSE OF ACTION
1. Check feedback leads #222,
#210, #201 and #202 for loose
or faulty connections. See the
Wiring Diagram.
2. The optional digital meter PC
board may be faulty.
1. Check feedback leads #222,
#210, #201 and #202 for loose
or faulty connections. See the
Wiring Diagram.
2. The meter(s) may be defective.
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