Lincoln Electric POWER MIG SVM167-A Service Manual page 62

F-26
TROUBLESHOOTING AND REPAIR
OUTPUT CAPACITOR BANK NOT FUNCTIONING (MAX TAP "G")
This is NOT a typical DC output voltage
waveform.
not functioning. Note the lack of "filter-
ing" in the output waveform. The output
capacitor bank was disconnected. Each
vertical division represents 20 volts and
each horizontal division represents 5
milliseconds in time.
NOTE: Scope probes connected at
machine output terminals: (+)
probe to electrode, (-) probe to
work.
ABNORMAL OPEN CIRCUIT VOLTAGE
20.0 V
The output capacitors are
POWER MIG® 215
5 ms
SCOPE SETTINGS
Volts/Div.................................20V/Div
Horizontal Sweep.................5 ms/Div
Coupling........................................DC
Trigger....................................Internal
F-26
0 Volts