Motif XS 8 needs to warm up?

1

I recently bought a used Motif XS8. It is now giving me strange sounds once turned on - scratching, hissing, occasional screeching. If I play “through” this, or wait 10 minutes or so, all the strangeness disappears. Help? Any ideas?

Additional Info - if it has been “on” for 1/2 hour or so, and I turn it off, and back on, I do NOT have the strange sounds.

2

Well, one day later, it works correctly right after powerup. Strange - and disconcerting still.

3

Sounds like some capacitors going bad in power supply

4

Thanks for the hint - guess I’ll open it up…

5

I would check for bad caps around the DACs.

6

Thanks. I haven’t dug around yet, but certainly good ideas.