Lincoln Electric Cross Country 300 Service Manual page 61

LINCOLN ELECTRIC
(+) PROBE
B6
B4
B4
B3
B1
B1
Table F. 7 – Chopper module diode tests
OHMMETER
(–) PROBE
Figure F.21 – Chopper module board location
CHOPPER MODULE
POWER MODULE PANEL
Cross Country™ 300 Service Manual
B5
B6
B5
B2
B3
B3
OHMMETER READING
EXPECTED READING
0.3 – 0.5 mv
1.50 – 1.90
0.5 mv
0.3 – 0.5 mv
1.5 – 1.90
0.5 mv
56