Greetings!

A thought - could having an open, well behaved connection on the serial port change the results of the test?

Since we know that the player watches for serial commands as well as the remote / IR control, maybe the serial port (if there is a stray signal) would wake the player as well??? Perhaps it is not the IR control pathway that is in question, but the serial port?

Since this test involves having an active, well behaved serial connection active, maybe it is either changing the circumstances of the bug or the bug is in the serial port sending the signal instead of the IR, as originally thought.

One possible way to check this would be to disconnect the display board from the main board completely, and see if it still happens with nothing on the serial port. That would take the IR signal path out of the loop completely...

A thought.

Edit - reread the whole thread and saw that the bug happened with a serial link connected. So that is not it.