Electrical Malfunction - Samsung C61R1AAMST Service Manual

4-3 Electrical Malfunction

Gate Collector Emitter
Troubleshooting (Power)
No Power
Check terminal block voltage.
(220V~240V, 50/60Hz)
YES
Check the wiring.
YES
Check the votage of PCB, SMPS
-input : 220V~240V
-output : 12V, 5V
YES
Replace the defected PCB.
Troubleshooting (Heating)
Heating Failure
Check the relay terminal voltage
(220V~240V)
YES
Check the wiring.
YES
Check the all IGBT terminal resistance
(G-E, G-C, E-C)
Is there any shorted circuit?
NO
Perform the 'PCB failure' process
- 25 -
Check the circuit breaker.
Check the terminal block connections
NO
Replace or Repair the wiring
NO
Repair the relay or missing circuit
component.
NO
Replace or Repair the wiring
NO
Replace the Assy-Inverter Module.
YES