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 Forum index » Instruments and Equipment » Alesis Andromeda
Andy randomly changing parameters - similar to sketchy pots
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statlerw



Joined: Sep 22, 2020
Posts: 2
Location: Oz

PostPosted: Tue Sep 22, 2020 5:11 pm    Post subject: Andy randomly changing parameters - similar to sketchy pots Reply with quote  Mark this post and the followings unread

I pulled my andy out of storage (unfortunately a very long one) and fired it up. Works fine - as awesome as I remember. Only problem is an intermittent random changing of (mainly oscillator) parameters.

The display shows the values changing like I had moved a pot (commonly LFO 1 / 3 or one of the VCO master tunes, put also S&H and other parameters). I have tried moving the pots around to make sure it isnt the 'actual' pots and I dont think it is because;
1. It isn't just one pot / value and it seems to be signal source related parameters
2. The value keeps moving even after several wide sweeps of the pots

Maybe a voltage issue somewhere? Perhaps a cap or op-amp failure?

The machine is usable, but this is annoying it makes it only suitable for studio use. Any pointers? Board components to check?

Any help appreciated
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