No speaker sound from tv (by 4 users)

I own an LH C3603 DVD/VCR COMBI RECEIVER which has been fine, for just over a year now, and about a month ago it suddenly stopped giving me sound from TV / VCR but with picture after I used the AV2 mode. I totally disconnected & reconnected it but the problem still persists. It seems asif because the 3D SURR & BYPASS modes have been deactivated the whole sound mode is off or interferes with the whole sound mode in TV. It also seems asif a driver in the software or something is missing

I own an LH C3603 DVD/VCR COMBI RECEIVER for just over a year, which was working fine until about 2 months ago when it suddenly stopped giving me sound from the tv/video side. There is normal picture but just no sound and it seems asif the 3D Surround & BYPASS modes have been dislodged. As its been fine all the time, it cannot be the connections but something thats been disconnected from the software inside. Like a driver missing.
Johnny rootsman@absamail.co.za

Trying to get sound thru my LG LFD790 speakers from my tv....Panasonic Plasma. All works good except can't get my tv audio to play thru the theatre speakers.