Troubleshooting_47
Check type
Check code
Checking method
Corrective actions
Power Check
None
1. Check the connections for the power cable.
- Reconnect the power cable.
2. Check the voltage of the power outlet.
�
Normal: AC 120V
- Connect to a 120V power source.
3. Check the wires of the Main PBA power part.
- Faulty: Check and replace the wires of the power part.
- Check voltage
- Measure the voltage between the black wire and the white wire of CN101.
�
Normal: AC 120V
4. Check the DC voltage of the Main PBA.
- See “Main PBA DC voltage Check”.
Main-PBA DC
Voltage Check
None
Check the DC voltage of the Main PBA.
- Measure the voltage between pin 4 (orange) of the main PBA CN302 connector and
pin 6 (brown) of the CN301 connector.
�
Normal: 4.5V to 5.5V
- Measure the voltage between pin 9 (blue) of the main PBA CN301 connector and pin
11 (blue) of the CN301connector.
�
Normal (Power Key On): 9.5V to 12.5V
�
Normal (Power Key Off): 5.5V to 7.0V
- Faulty: Replace the Main-PBA Assy.
- Check voltage (4.5V~5.5V)
- Check voltage (9.5V~12.5V or 5.5V~7.0V)
