Lincoln Electric 11694 Service Manual page 52

®
POWER WAVE S350
INPUT RECTIFIER
PROCEDURE
1. Remove the input power to the Power Wave S350 machine.
2. Perform the Case Cover Removal and DC Link Capacitor
Discharge Procedure.
3. Locate the input rectifier and associated leads. See Figure F.18
and Figure F.19. See Wiring Diagram.
4. Using a digital voltmeter (DVM) set to diode test mode, perform the
tests detailed in Table F.9. See Wiring Diagram.
5. If the input rectifier does not meet the expected readings, perform
the Switch Board Removal And Replacement Procedure.
6. Perform the Case Cover Replacement Procedure.
INPUT RECTIFIER TEST
Figure F.18 – Input rectifier location
TEST POINTS
TROUBLESHOOTING AND REPAIR
(continued)
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