[DAVE123]

Hi, and again - thank you all for your help so far.

Thank you julie_m for the list of stuff to look for.

Well, i'm going to add some more photos of the machine. I've looked all the way around it and have only really found one thing that I didn't know was there already. It's a small hidden connector just below the front panel. I've also noted there's a manual RF trimmer on the back, but adjusting this just sets the picture off and does not affect the sound at all. I've not been able to do as suggested (i.e.: the E-E Pass through) yet. However, i did manage to remove a blanking cover which revealed an AUX connector.

Please bear with me as my tech knowledge is not good, but i'm trying my best to figure out what's what.

I did wonder if at some point, someone had muted the machine via a remote control (which sadly i don't have) and it's still in mute 'mode'. Is that even possible?

Dave.