Alesis Andromeda A6

I'm trying reparing my Andromeda too. My problem consist in knob jittering, so whee a patch is on, it starts changing values by itself.
I uploaded in the files section the Official Operating Manual and schematics where you can find many solutions to the most common problem.knobs jittering, it seems that most of the times is a flat cable problem, especially the one of 60 pins. I've able to build one for a few dollars. Unfortunately that was not my problem. On the operating manual it says to control if the resistence R&£ has been removed as written on one of the ECN(electronic component news). I got that resistence andI would like to try to remove it..
Other problems: in debug mode(soft button 2) the ribbon controller doesn't pass the passive test. RElated to knob jittering Left front panel doesn't pass the test, OSC2 frequency and fine tuning are out of range. I'm pretty shure it's not a knob failure.
Last problem: output very low from all outputs, headphoones included.
 
Any suggestion? Thanks
Stef  


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