MF-102: oscillator turned into a sawtooth - strange problem

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1

my ringmodulator behaves strangely:


the carrier oscillator is now a different waveform! it sounds sawtoothish, and the frequency range is different also.
I kind of like this - the tremolo is choppy and a switch to activate this would be great, but out of the blue it´s bad, bad, bad because I am in the middle of a production where I need the smooth sine tremolo.

I also tried this: I connected an sine output of a doepfer modular lfo into the carrier in and I got a funny rhythm going on.

I tried unplugging from power, unplugging all other cables, plugging in an expression pedal…

I am powering it from a voodoo lab pedal power 2+ but have done so for the last couple of months without a problem.

it has happened before, with the ringmodulator turning to normal state again, but I didn´t inspect this as closely before so I don´t know what made it go back to normal.

please help if you have an idea what to do!

2

can you try the original power supply?

3

Are any of the control input sockets bent or shorted out??

4

thanks for the answers.

today I had time to go back to my studio and I checked, the tremolo was still funky.

than I plugged in the original power supply and it was still funky.
next I unscrewed the bottom plate to have a look inside. everything looks ok for me, but I´m not an expert.
next I reassembled the thing and plugged in the original power supply - voila, back to normal again.
I then checked again with the voodoo lab power supply, no problem.

I remember this happened before some months ago, but I can´t tell what the procedure was that helped.

I am puzzled.
hm?