It's been too quiet arround here for too long
My exstata is making trouble since yesterday.
I took out the boards to change some of the input wiring in the case.
(Source selector and loop out stuff)
I also cleaned the boards softly with a soft paint brush to remove some dust.
The I installed everything back and began with the initial check.
Power supply is ok - but the two boards are showing high offset values!
Everything worked perfectly before, now I'm unable to get the voltages
down close to 0V before the end of the trimpots is reached.
One board is showing ~40V between + and -, the other one
shows more than 150V and rising (I switched off then).
So what the H*** is going on here?
I can't imagine having destroyed something with a paint-brush!