Thanks Martin for your information, i have big respect for you knowledge for this UNIT
95% my problem is in LIN/LOG plug, Shorting in a plugin.
I removed the C11 capacitor (negative power supply) and here I still have a short circuit at the soldering points for the C11 capacitor
I think this is a very bad indication... You can send me the schematic of this plugin?
P.S. later I will see the wobulator and describe how many slots it has