* The LEDs on the front panel do not work when connecting the power cord.
* The SMPS relay does not work when connecting the power cord.
* The unit appears to be dead.> The IP relay or the LEDs on the front panel does not work when connecting the power cord if the cables are improperly connected or the Main Board or SMPS is not functioning. In this case, check the following:
> Check the internal cable connection status inside the unit.
> Check the fuses of each part. - Check the output voltage of SMPS. - Replace the Main Board.
