Re: Did I kill the mixer?

On Nov 29, 9:18 am, "Frederic Gelinas" <frederic_geli...@xxxxxxxxxxx>
wrote:
On last gig, I had to rely on my backup amp for monitoring purpose: a
Yorkville 100k (it's a multi-purpose full-range combo with a 3 channel
mixer). It did the job quite well.

Back home, since the pots are all becoming hard to turn and are very,
very noisy, I decided to clean them all since that combo prooved to be
useable. I got my can of contact cleaner and unmounted the mixer/amp.
I sprayed some liquid into the pots and played with each of them until
they were smooth.

When I plugged everything back, the unit is no longer working. Well,
the Amp In is still working. And I can also hear the reverb signal
when turned to 10. Looks like anything coming from the mixer part of
the circuit is not working.

I doubt that the pots are causing the problem. I must have bumped
something...

Any of you know how to troubleshoot this kind of problem?

--
Frederic Gelinas


First off give it time to dry.
Like overnight.
Turn each pot or fader to max quickly in both directions about 50
times.
That should clean them unless they are cruddy.
Cleaning the pots is the first thing I would do.
If that doesn't help open it up and look at the solder joints.
Some may be cracked and need resoldering.
All three of my Yorkville cabinets suffered from cracked solder joints
where the output jacks mount to the PCB.
Pt
.

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  • Re: Did I kill the mixer?
    ... Yorkville 100k (it's a multi-purpose full-range combo with a 3 channel ... Back home, since the pots are all becoming hard to turn and are very, ... I sprayed some liquid into the pots and played with each of them until ... Looks like anything coming from the mixer part of ...
    (alt.guitar.bass)