Control Pcb Indicators - Thermal Dynamics C-70A CUTSKILL Service Manual

6.03 Control PCB Indicators

1. Turn the switch located on the front panel, to the "On" position. The
should light and the cooling fan should be running.
2. Locate the Control PCB behind the front panel and the PWM PCB behind that. LD2 LED's on both PCB's should
be "ON".
Control PCB
3. Squeeze the torch trigger (slight delay), pilot arc starts. LD2 LED on both boards should brighten.
4. Transfer the arc to the work surface and LD1 on both boards should come on so that all LEDs are on.
If no transfer of arc occurs, check the work lead connection.
TROUBLE SHOOTING
PWM PCB
NOTE:
6-4
A/C indicator on the front panel
Manual 0-4699