cheap squeak intermittent sound

Archived from groups: rec.games.pinball (More info?)

I have a Bally Lady Luck with intermittent sound problems. The
voltages are correct at the test points and I am at a loss on how to
trouble shoot this. Does anyone have any words of wisdom?

Thanks.

Dennis

Archived from groups: rec.games.pinball (More info?)

If it is the pot like Fred says, you might try a spot of contact
cleaner on the control. Rotate the stick from one extreme to the other
a few times. Once back on, you should continue to rotate the stick to
check for improvement. No luck, replace like Fred says. Do not spray
with the machine plugged in and do not over spray!!! Fire hazard!!!
This is about the only time to use contact cleaner on a pin.

Archived from groups: rec.games.pinball (More info?)

It sounds as though the board stops 'running'
if that is the case.

That can be many different things. Sound boards
can be difficult to troubleshoot past the basic audio
output circuit. If replacing the volume pot and reseating
the cable(s) doesn't catch it, I'd suggest replacing it
with a working used one, or finding a competent repair
service check/repair it for you.

--
Fred
TX
CARGPB#8
******************


<dennisdelong@comcast.net> wrote

> Fred & Ed- Thanks for the pointer- I have tried contact cleaner a
> couple times- didin't help. I did notice that on boot up the light on
> the sound board will blink briefly when the sound is working and stay
> on steady when the sound doesn't work. This doesn't sound like the
> volume control. Any ideas?
>
> Dennis
>