Lincoln Electric SVM138-A Service Manual page 90

F-26
FIGURE F.2 – SECONDARY LEADS #601 AND #602 AT LEAD SPLICES
6. Using the volt/ohmmeter, check for 10VAC at
secondary leads #601 and #602. Typically,
these leads are yellow. Place the probes at
the lead splices. See Figure F.2.
TROUBLESHOOTING & REPAIR
T1 TRANSFORMER TEST (continued)
LN-9 GMA Wire Feeder
LEAD 601
LEAD 602
7. With 115VAC applied to the primary leads
#532 and #31, if either or both of the sec-
ondary voltages are missing or low the T1
transformer may be faulty.
transformer.
8. After the test is completed, disconnect the
115VAC from the T1 transformer primary
leads. Reconnect lead #532 to the power
PC board terminal. Close the left side cover
assembly and re-assemble the screws.
F-26
Replace the