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Buchla 252e voltage anomaly on changing preview display mode
MUFF WIGGLER Forum Index -> Buchla, EMS & Serge  
Author Buchla 252e voltage anomaly on changing preview display mode
ibat
Hi everyone.

I discovered strange voltage anomaly in my 252e :(

During changing display preview mode from first 4 modes
to 5th mode which shows all modes superimposed to see
which cells are empty and which are occupied the voltage anomaly happens.
The master clock slows down and the sound going a little bit out of tune :(

What can it be? I am asking for support.

My 252e is mounted in original boat in Lem 3 Spider set.
Music Easel is controlled by 252e.

I attached screenshot with comparison of waveforms
and a video sample from action:

https://vimeo.com/308443742



Help please :(
Precarious
I'm wondering if the LEDs are the cause. I can't imagine that little bit of additional voltage would be too much for the power supply but just to be sure create a very simple pattern on a single channel so that the same LEDs will be lit in both modes and see if you get the same result.

That's the first thing I would try.
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