Hypertherm XPR170 - Page 262

Diagnostics and Troubleshooting
8
262 810060 Instruction Manual XPR170
Table 34 – PCB names and locations
3. Examine the PCB. Look for:
 Loose or disconnected PCB connectors
 Loose or disconnected PCBs
 Discoloration
 Damage
4. If you find a PCB that is loose, reconnect it if possible.
5. If you find a PCB that has damage or discoloration, replace it.

See Parts List on page 351 for part numbers and reorder information.
6. If all PCBs are in good condition, measure the line voltage between the terminals inside of the
plasma power supply. Refer to Measure the line voltage between the terminals inside the plasma
power supply on page 263.
7. If you cannot find or resolve the problem with these corrective actions, contact your cutting
machine supplier or regional Hypertherm Technical Service team.
PCB name Location See the following drawings to PCB location page
Power distribution PCB Plasma power supply Refer to Control side – view 1 on page 359.
Control PCB Plasma power supply Refer to Control side – view 2 on page 360.
Chopper assembly PCB Plasma power supply Refer to Control side – view 2 on page 360.
Start-circuit assembly
PCB
Plasma power supply Refer to Control side – view 1 on page 359.
I/O PCB Plasma power supply Refer to Control side – view 2 on page 360.
Fan power distribution
PCB
Plasma power supply Refer to Fans on page 353.
Control PCB Gas connect console Refer to Gas connect console manifold side parts on
page 364.
High-frequency,
high-voltage ignition
PCB
Gas connect console Refer to Gas connect console high-voltage side parts on
page 363.
Ohmic contact PCB Torch connect console Refer to Torch connect console manifold side – view 1 on
page 373.
Control PCB Torch connect console Refer to Torch connect console manifold side – view 1 on
page 373.