Table f.2, Chopper t erminal connections, Troubleshooting & repair – Lincoln Electric VANTAGE 400 User Manual
Page 115: Chopper module resistance test (continued)
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FIGURE F.2 - DIODE TEST TABLE
CHOPPER MODULE RESISTANCE TEST (CONTINUED)
TROUBLESHOOTING & REPAIR
F-67
F-67
VANTAGE® 400
(+) Lead
(-) Lead
Diode Bias
and Expected
Test Result
B5
B6
6K to 9K
B6
B5
6K to 9K
B4
B5
200k or higher
B5
B4
400k or higher
B4
B6
200k or higher
B6
B4
400k or higher
B2
B3
6K to 9K
B3
B2
6K to 9K
B4
B2
200k or higher
B2
B4
400k or higher
B4
B3
200k or higher
B3
B4
400k or higher
OHMMETER
OHMMETER
READING
Chopper
T
erminal
Connections
5. Reconnect all leads.
6. The chopper module screw connection should be lightened to 50-60 inch-pounds.
7. Perform the Case Cover Replacement procedure.
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