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Doepfer

Index last updated: 2026-04-29 00:15 UTC

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AW: [Doepfer_a100] HELP!! Malfunctioning 155, gig on Saturday!!!

2014-04-29 by yahoo@doepfer.de

> YELP!
> Suddenly tonight, sitting down to make last patch before a gig on
> Saturday I get a bug on my A 155 sequencer.
>
>
> Heres the thing, Im getting step 1 then step 2 then sep 1 again
> then step 2 THEN step 7 and 8.. but with a double note beat on
> something...
>
> I HAVE NEVER had anything other than standard flashing thru the
> notes 1 to 8 before...
>
>
> Whats happening???
> mark

The steps are obviously addressed in the wrong way. I see two reasons for
this behaviour: a loose connector or defective integrated circuits. Look at
the connectors of the ribbon cable that leads from the small control board
(start, stop, step, reset) to the trigger/potentiometer boards. If the cable
and the connectors are OK probably one or more integrated circuits on the
control board or on the trigger/potentiometer boards are defective. As each
integrated circuit is equipped with a socket the circuits can be replaced
without soldering. If the module is still under warranty please return it
to the dealer where you purchased it.

Best wishes
Dieter Doepfer

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