I've run into another frustrating problem. I can't seem to get any sound from my player's AC-3 jack. Is there a way to check if a player's RF jack is working or not? A meter or something like that? You see, I just got an RF demodulator (Seems to be working), but I am still not getting any audio into my DD/DTS receiver. I want to know if there is a way to see if there is any activity from the player's digital out jack, or if it's the demodulator unit that is the problem. I would think the signal from an AC-3 encoded disk would automatically be sent to that jack, as I don't see any option to turn on the RF AC-3 within the players options controls. The player is a Pioneer CLD-504. Any advice or help with this problem would be very appreciated.