Hypertherm Powermax65 SYNC - Replace the DSP PCB

Do System Tests to Identify Defective Components
5
Powermax65/85/105 SYNC Troubleshooting Guide 810430 95
Table 7
5. Is the 48 VDC measurement for the fan correct?
 If yes, continue with the next step.
 If no, disconnect the fan connector from the power PCB. Measure the voltage again from
pin 1 to ground. Is the voltage correct now?
 If yes, replace the fan.
 If no, continue with the next step.
6. Are the 48 VDC, 24 VDC, and 5 VDC measurements for the solenoid valve electronic regulator
all correct?
 If yes, continue with the next step.
 If no, disconnect the solenoid valve electronic regulator from the power PCB. Measure the
voltage again from pin 7, pin 5, or pin 4 to ground. Is the voltage correct now?
 If yes, replace the solenoid valve assembly.
 If no, continue with the next step.
7. Is the 3.3 VDC measurement on the power PCB correct?
 If yes, continue with the next step.
 If no, remove the DSP PCB from the system. Measure the voltage again from pin 4 to
ground. Is the voltage correct now?
 If yes, continue with the next step.
 If no, replace the power PCB.
System Component Pin number to ground Correct voltage (±15%)
Powermax65/85 SYNC CSA
Fan Pin 1 on J3 +48 VDC
Solenoid valve
electronic regulator
Pin 7 on J4 +48 VDC
Pin 5 on J4 +24 VDC
Pin 4 on J4 +5 VDC
Power PCB Pin 4 on J11 +3.3 VDC
Powermax65/85 SYNC CE/CCC
Fan Pin 1 on J5 +48 VDC
Solenoid valve
electronic regulator
Pin 7 on J6 +48 VDC
Pin 5 on J6 +24 VDC
Pin 4 on J6 +5 VDC
Power PCB Pin 4 on J14 +3.3 VDC
Powermax105 SYNC
Fan Pin 1 on J1 +48 VDC
Solenoid valve
electronic regulator
Pin 7 on J6 +48 VDC
Pin 5 on J6 +24 VDC
Pin 4 on J4 +5 VDC
Power PCB Pin 4 on J15 +3.3 VDC