The product cannot be powered on

Occurrence condition
  • The power does not turn on even if the Power button is pressed.
Suspected cause
  • Panel Assy failure
  • Relay Cable (Panel to Main) connection failure, disconnection
  • Power Supply Assy failure
  • Main Board failure.
Related parts
  • Panel FFC
  • Panel Assy
  • Power Supply Assy
Troubleshooting
ProcedureCheck and measureYesNo
1

Check the Relay Cable (Panel to Main)

  • Check if the Relay Cable (Panel to Main) is connected correctly.
  • Check if the Relay Cable (Panel to Main) is damaged.

Make sure there is no problem in the connection or state of the Relay Cable (Panel to Main).

Go to step 2


  • When the cable is not connected correctly, reconnect the Relay Cable (Panel to Main) correctly.
  • When the cable is damaged, replace the Relay Cable (Panel to Main).

If the symptom continues to occur, go to step 2.

2

Check with a normal panel unit.
Check by replacing the panel unit with a normal unit (with which normal operation can be confirmed).

Has the phenomenon been improved upon?

Replace the Panel Assy.

Go to step 3



3

Check with a normal Power Supply Board.
Check by replacing the Power Supply Board with a normal board (with which normal operation can be confirmed).

Has the phenomenon been improved upon?

Replace the Power Supply Assy.

Go to step 4

4

Replace the Main board Assy.
Does the error occur after replacing the Main Board Assy?

Contact the EPSON Service Department.End