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TROUBLESHOOTING & REPAIR
CONTROL PC BOARD TEST (continued)
FIGURE F.15 – CONTROL PC BOARD LOCATION
TEST PROCEDURE | 4. Connect the DC voltmeter to the test |
1. Remove input power to the machine. | points. |
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2.With the 5/16” nut driver, remove the screws and carefully lower the case front control panel.
3.Locate the test points on the control PC board that are called out in the Control PC Board Voltage Test Points Chart. See Figure F.15 and the Control PC Board Schematic.
WARNING
ELECTRIC SHOCK can kill.
•With input power ON, there are high voltages inside the machine. Do not reach into the machine or touch any internal part of the machine while power is on.
5.Turn on input power to the machine.
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SQUARE WAVE TIG 355
