Samsung NE597N0PBSR Servise Manual page 66

4. Troubleshooting
4-2 Electrical Malfunction
Troubleshooting (PCB failure)
PCB Failure
- Check the input voltage of
PCB SMPS (input check-
point : 120V )
- Check the output voltage of
PCB SMPS (Output check-
point : 5V/12V )
Do all relays operate?
Check the Assy-Inverter Module & Assy Touch PCB's
input voltage(5V,12V,GND)
- Check Terminal block
voltage(240V).
Reset the circuit braker or
Repair the relay or replace
Replace PCB
Repair Faulty wiring
check main power.
Replace PCB
PCB.
Replace or Repair the wiring
66
or PCB check