Samsung DW80M9 Series Service Manual page 53

Check type Check code
No Power check None
Display check None
Dry check None
Checking method
1. Check the connections for the power plug.
2. Check the voltage of the power outlet.
► Normal : 120V
3. Check Power Key on state.
4. Check the connections for the Sub PBA and Touch PBA connector parts.
5. Check the connection of the Main PBA connector CN101
6. Check the connections for the Sub PBA and Main PBA connector parts.
7. Check whether there is condensation on the PBA.
- CN103 of Display Control Module connector.
- CN100 TOUCH Module connector.
► Normal: No condensation
8. Check the DC voltage of the Main PBA.
9. In case of is No Power after Method 1~10 action
10. In case of is No Power after Method 1~11 action
1. Check the connections for the Display LED connector part.
2. Check the Display LED.
1. Check the wire connections for the Fan Motor.
2. Check the resistance of the Fan Motor coil.
(Remove the connector before measuring.)
► Normal: Approx. 150Ω
3. Check the resistance of the Thermal Actuator.
(Remove the connector before measuring.)
► Normal: Approx. 1.45kΩ
Corrective actions
- Reconnect the power plug.
- Connect to a 120V power source.
- Try to touch the Power key.
- Reconnect the Sub PBA and Touch PBA connectors.
- Reconnect CN101
- Reconnect the Sub PBA and Main PBA connectors.
- Faulty: Remove any condensation and moisture.
- Normal: Replace the Control Panel Assy.
- See "Main PBA DC voltage check code".
- Replace the Control Panel Assy.
(Sub, Touch, wire)
- Replace the Main PBA.
- Reconnect the connectors for Display LED.
- Faulty: Replace the Display LED and Sub PBA.
- Reconnect the Fan Motor connectors.
- Faulty: Replace the Fan Motor Assy.
- Faulty: Replace the Thermal Actuator.
Troubleshooting_51