On 20 Sep, 2013, at 1:00 AM, Joost den Hertog wrote:

> the oberheim responds not on a midi-in massage.

Massage or message If message, all MIDI communication doesn't work
Isn't it just problem of some setting MIDI channel, filter or
similar Or hardware - bad cable, MIDI interface...


Have you tried some reset or test mode There must be something like
this...


If nothing helps, it's time to open it, check cables and connectors,
reseat them, also chips in socket (if any), and check the way of MIDI
signal. Maybe optoisolator on the input is dead, or some other
component.

> when starting up the Mx display tells the battery is low
>
> is this normal

Probably it's normal, when battery is low :-) Maybe it's time for
changing it.


Daniel Forro