actually, there is one thing you have to make sure of in the menu. The Economy mode needs to be disabled.
• Standby Mode:
When this is set to “Economy”, you can reduce the
power consumption when the unit is in the Standby
mode. When “Economy” is selected, “RS-232C”
is disabled when the unit is in the Standby mode.
Also, make sure you are using a straight cable.
