Samsung NE58F9710WS Service Manual page 43

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)
Replace PCB
- Check Terminal block
voltage(240V).
Reset the circuit braker or
check main power.
Replace PCB
Repair the relay or replace
PCB.
Replace or Repair the wiring
43
Repair Faulty wiring
or PCB check