Doepfer

Hi, I'm new to the list.

I have some modules in a Doepfer portable suitcase
(Analogue Systems, Doepfers and Cwejmans).
2 oscillators synced, receiving CV from my A190 MIDI to CV module.
I use my system live as bass synth.

Some weeks ago my system did that strange thing:
suddenly the tuning fell down a fifth!
During the soundcheck it was OK (like for months, and after some gigs)
but before we started the show, it was tuned a fifth below
(exactly a perfect tuned fifth below).
It has stayed that way since then.

Isn't it strange? Or it isn't?

Has someone had similar behaviour?

Have I to fear that happening again?

Maybe something in my A190 is wrong?

Thanks for your help in advance

Genís
Austrohungaro
Barcelona, Spain