Samsung DMT300 Series Service Manual page 40

4. Troubleshooting
Error type Error mode
Power error None
4-11
Checking Method
1) Check the connections for the power plug.
2) Check the voltage of the power outlet.
• Nomral: AC 120V
3) Check the wires of the Main PBA power part.
• Measure the voltage between the black wire and the white wire of
CN101.
• Nomral: AC 120V
4) Check the DC voltage of the Main PBA.
Corrective actions
Reconnect the power plug.
•
• Connect to a 120V power source
Faulty: Check and replace the wires of the power part.
•
• Remove Retainer.
Check voltage.
•
• See "Main PBA DC voltage error".
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