Hypertherm Powermax65 Service Manual Rev.1 - Manual (Page 173)

TroubleshooTing and sysTem TesTs
powermax
65/85 Service Manual 5-47
If the +48 VDC value is incorrect:
• Remove the fan connector (J3 for standard units or J5 for CE units) and repeat the test.
• If the value is now correct, replace the fan.
• If the value is still incorrect, replace the power board.
If the +3.3 VDC value is incorrect:
• Remove the fan connector (J3 CSA or J5 for CE units) and repeat the test.
• If the value is now correct, replace the fan.
• If value is still incorrect, remove the DSP board and repeat the test.
• If the value is now correct, replace the DSP board.
• If the value is still incorrect, replace the power board.
If the +5 VDC value is incorrect:
• Remove the pressure sensor connector (J5 CSA or J7 for CE units) and repeat the test.
• If the value is now correct, replace the pressure sensor.
• If the value is still incorrect, remove the DSP board and repeat the test.
• If the value is now correct, replace the DSP board.
• If the value is still incorrect, replace the power board.
If the +24 VDC value is incorrect:
• Remove the pressure switch connector (J1 CSA or J3 for CE units) and repeat the test.
• If the value is now correct, replace the pressure switch.
• If the value is still incorrect, replace the pressure switch connector, remove the solenoid valve connector
(J4 CSA and J6 for CE units) and repeat the test. If the value is now correct, replace the solenoid valve. If the
value is still incorrect, replace the power board.