Lincoln Electric IDEALARC DC-1000 Service Manual page 63

F-29
POSSIBLE PROBLEMS PERTAINING
TO THE CONTROL BOARD
IF LED 1 does not light, when the start switch is
ON.
1. Check for 115 VAC at leads #255 to #256 plug
J1.
a. If the correct voltage is not present, check
leads #255 and #256 and associated wiring
for loose or faulty connections. See Wiring
Diagram and Figure F.10.
b. Remove main supply power to the
DC-1000. Test for continuity (zero ohms)
from lead #255 plug J1 at the Control Board
to lead #212 at the Start/Stop Button.
TROUBLESHOOTING AND REPAIR
CONTROL BOARD TEST (continued)
FIGURE F.10 – LED 1 TEST POINTS
IDEALARC
c. Test for continuity (zero ohms) from lead
#256 plug J1 at the Control Board to the
pilot light. See Wiring Diagram.
d. If the 115 VAC is present at leads #255 to
#256 at plug J1 and LED 1 does not light,
the Control Board may be faulty. Replace.
® DC-1000
F-29