TROUBLESHOOTING AND REPAIR
RETEST AFTER REPAIR
F-92 F-92
V350-PRO
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Retest a machine:
If it is rejected under test for any reason that requires you to remove any part which could affect the
machine’s electrical characteristics.
If you repair or replace any electrical components:
Press and hold the MODE SELECT button (or the MEMORY button if an advanced process panel is
installed) while applying power to the machine. Rotate the output control knob until the display reads
SPIdIAG. Release the MODE SELECT button.
Required Action
Expected Results
Rt. displayLft.display
Test
Steps
1
2
3
4
5
6
7
8
9
10
11
12
Adjust the output control potentiometer to its highest
setting (completely clockwise).
Adjust the output control potentiometer to its lowest
setting (completely counterclockwise).
Adjust the hot start potentiometer to its highest setting.
Adjust the hot start potentiometer to its lowest setting.
Adjust the arc control potentiometer to its highest setting.
Adjust the arc control potentiometer to its lowest setting.
All weld mode indicator LEDs should be off. Press the
weld mode select push button to select the first weld
mode. Only the top weld mode indicator LED should be
on, all others should be off.
Press the weld mode select push button again to select
the second weld mode. Only the second weld mode
indicator LED should be on, all others should be off.
Press the weld mode select push button again to select
the third weld mode. Only the third weld mode indicator
LED should be on, all others should be off.
Press the weld mode select push button again to select
the fourth weld mode. Only the fourth weld mode indi-
cator LED should be on, all others should be off.
Press the weld mode select push button again to select
the fifth weld mode. Only the bottom weld mode indica-
tor LED should be on, all others should be off.
Press the weld mode select push button again and veri-
fy that all weld mode indicator LEDs are off.
The test will automatically advance to step 25
oCP
oCP
HSP
HSP
ACP
ACP
NodE
NodE
NodE
NodE
NodE
NodE
HI
Lo
HI
Lo
HI
Lo
1
2
3
4
5
CLr
NOTE: If a standard Mode Select Panel is not installed in the machine, skip steps 3-12
