Re: C-Audio schematic?

Joe Kotroczo wrote:

> "Eeyore" wrote:
>
> >>>> And: does anybody happen to have a schematic for a C-Audio ST600
amplifier?
> >
> > Well I did once. God only knows where it is now after 3 company moves.
> >
> >>> 2u job ? With one puny fan at the back blowing blistering hot air
over the
> >>> reservoir caps at the front ?
> >>>
> >>> If it's the model I think it is, I could tell you a thing or two
about that.
> >>
> >> It's a 2U job, with a single fan in the back, but the front half only
> >> contains a big transformer.
> >>
> >> It's this one: http://www.gbaudio.co.uk/data/st600.htm
> >
> > That's the one ! I'll save the story of shame for later.
>
> I've put the pictures here:
> http://homepage.mac.com/kotroczo/PhotoAlbum62.html
>
> Am I right in assuming that the left side should be the same as the
right
> side? Same value resistors? It looks like that, but I'd rather be safe
than
> sorry.

I'd say that's a pretty safe assumption. Odd parts to burn out though,
tends to
suggest 'RF' oscillation on that channel perhaps, or RF on the input.

I see they've changed the internal layout a bit too, replacing the more
durable
metal can output devices with plastic encapsulated ones.

Check for symettrical clipping btw. They EAT output devices by running
them too hot
which then fail 'open' so it's not initially obvious.

Graham