HELP: Sansui G-7500

Archived from groups: rec.audio.tech (More info?)

I have a Sansui G-7500 purchased new in 1978 with intermittent (dirty)
volume & tone controls and
intermittent or dirty switches which cause the output signal to cut in and
out. I've tried cleaning them from inside, but most of these parts look as
though you'd have to destroy them to disassemble them. Does anyone know if
replacement parts are available?

Thanks.

Ed P.

Archived from groups: rec.audio.tech (More info?)

Ed Petruskavich wrote:
> I have a Sansui G-7500 purchased new in 1978 with intermittent (dirty)
> volume & tone controls and
> intermittent or dirty switches which cause the output signal to cut in and
> out. I've tried cleaning them from inside, but most of these parts look as
> though you'd have to destroy them to disassemble them. Does anyone know if
> replacement parts are available?
>
> Thanks.
>
> Ed P.
>
>
Parts are gong to be about impossible to find for a old beast lie that.
The Sansui that made it is long gone. (not to be confused with the
sansui named junk out there now).

The best you can do is use something like caig labs pro gold contact
cleaner/lube on the pots. On the tape monitor switches and such that
are sealed, i have a trick i developed to get cleaner into them.
I use a thin long tipped solder pencil and burn a hole into the back
plastic of the control. You have to work the control in and out
to prevent the melted plastic from jamming the control. Then squirt
contact cleaner into the hole and work it in and out.

The caig stuff is NOT cheap, buts its the best you can get.
Don't even think about cheap generic tuner cleaner or WD40.

Bob

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