I just resurrected a Dolby ProLogic receiver after a few years in mothballs. I connected it up to a new HD cable box , tuned to a Dolby signal source on cable, and activated the digital reception on the receiver (via optical cable). The source audio lit up the Dolby Digital LED on my receiver and very nice audio came to my L/R speakers but NOTHING to the center (it was an NFL game where their play by play was 100% to the center, all I got was crowd noise).
So now I need to do some troubleshooting, the center speaker IS ok, it may be as simple as the center speaker level is turned down to zero on the receiver but I doubt it. If it is, I'm stuck because the level can ONLY be increased via a button on the remote and I have misplaced the remote
Other that the above I am assuming it could be ...
1. No signal coming from the center signal output , is there a way to test for the presence of audio on that center out terminal ? Use multimeter of something
2. Bad optical cable, is it possible for the cable to NOT pass all of the audio or it is ALL or Nothing ?
3. The cable box is not passing the center signal to the surround sound system, I would guess this is unlikely, right ?
Any ideas appreciated
Andy
So now I need to do some troubleshooting, the center speaker IS ok, it may be as simple as the center speaker level is turned down to zero on the receiver but I doubt it. If it is, I'm stuck because the level can ONLY be increased via a button on the remote and I have misplaced the remote



Other that the above I am assuming it could be ...
1. No signal coming from the center signal output , is there a way to test for the presence of audio on that center out terminal ? Use multimeter of something


2. Bad optical cable, is it possible for the cable to NOT pass all of the audio or it is ALL or Nothing ?
3. The cable box is not passing the center signal to the surround sound system, I would guess this is unlikely, right ?
Any ideas appreciated
Andy