Vintage Products

Re: Beocenter 7700 switching off??

rayfenwick — Wed, 22 Apr 2009 09:58:26 GMT

That cracked PCB might have something to do with it

Ok not directly, as that board is only for TAPE2 and the pre-amp in/out, but as you have wires off and a cracked board just above where all the output transistors are....it points to damage elsewhere.

I've got 2 7700's in pieces at the moment, so if you need some spares PM me.

Re: Beocenter 7700 switching off??

Andy — Wed, 22 Apr 2009 05:43:38 GMT

have had a good look around and found these 3 wires the red, brown and orange wires are not connected to the inputs at the back around the tape 2 phono inputs. Could this be a reason for switching off?? Or is it a red herring??

Thanks

Andy

Re: Beocenter 7700 switching off??

Andy — Wed, 25 Mar 2009 18:04:45 GMT

I have no remote but its a good suggestion if only it would be that simple but I fear not!!

Re: Beocenter 7700 switching off??

Jandyt — Wed, 25 Mar 2009 17:00:30 GMT

I don't suppose your remote could be sending an 'Off' signal after three seconds?
Just a thought. Try removing it from the room.

Re: Beocenter 7700 switching off??

henrik — Wed, 25 Mar 2009 16:57:12 GMT

I suppose it's really easy if you are used to soldering, but I'm not. :) I let a repair shop fix it for me, it didn't cost much.

Re: Beocenter 7700 switching off??

Andy — Wed, 25 Mar 2009 16:42:00 GMT

thanks

but what are bad bias trimpots?? How easy is it to replace them??

Thanks again

Re: Beocenter 7700 switching off??

henrik — Wed, 25 Mar 2009 16:30:42 GMT

I had the same problem with mine, and it was caused by bad bias-trimpots. I had them replaced (and properly adjusted), and since then the unit works fine.

Beocenter 7700 switching off??

Andy — Wed, 25 Mar 2009 16:19:16 GMT

my beocenter has started just switching off after 3 seconds after any selection of ph TP or P1 - P6. Everything lights up then click switches off!! Has it died or can it be fixed??

Many Thanks

Andy