Filter
Top Products
TROUBLESHOOTING AND REPAIR
F-25F-25
POWER MIG 200
ABNORMAL OUTPUT VOLTAGE WAVEFORM - MACHINE
LOADED (MAX TAP “G”)
ONE OUTPUT DIODE NOT FUNCTIONING
20.0 V 5 ms
0 Volts
This is NOT a typical DC output voltage
waveform. One output diode is not func-
tioning. Note the increased ripple con-
tent. One diode was disconnected to
simulate an open or non-functioning out-
put diode. Each vertical division repre-
sents 20 volts and each horizontal divi-
sion represents 5 milliseconds in time.
The machine was loaded with a resis-
tance grid bank.
NOTE: Scope probes connected at
machine output terminals: (+)
probe to electrode, (-) probe to
work.
Volts/Div.................................20V/Div
Horizontal Sweep.................5 ms/Div
Coupling........................................DC
Trigger....................................Internal
SCOPE SETTINGS
MACHINE LOADED TO 180 AMPS AT 16 VDC
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC
Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC