Hello,

the ser.no. tells me that the unit has been manufactured in 1999. If the
battery has never been changed I'm quite sure that it is defective and has
to be replaced.
Details on the FAQ page of our website:

www.doepfer.com > English > FAQ > General > Lifespan of rechargeable
batteries (used for memory backup)

If it's not the battery please contact Christian Assall
( software@... ). He's the Regelwerk specialist. But he is still on
holiday for 2 weeks.

Best wishes
Dieter Doepfer

> -----Ursprüngliche Nachricht-----
> Von: Doepfer_a100@yahoogroups.com [mailto: Doepfer_a100@yahoogroups.com ]
> Gesendet: Donnerstag, 22. September 2016 02:58
> An: Doepfer_a100@yahoogroups.com
> Betreff: 1 Regelwerk issues
>
>
> I have a Regelwerk that does not boot fully.
> - PSU = 9v DC, correct polarity (- out, + in, same iconography)
> 1a (500ma required)
> - Nothing plugged in but the PSU, so no chance of loops or
> external influence.
> - Boots as far as displaying the OS Screen:
> "Regelwerk V.171
> Doepfer (c) 300799"
> - Boot process ends there, and the (blue) LEDs flash in unison at
> apparent random intervals. No discernible pattern.
> - Using the Factory Reset process from the manual found in the
> link below changes nothing.
> FAQ in english
> FAQ in english
> FAQ's LCD readouts during the reception of MIDI SysEx data:
> View on www.doepfer.de Preview by Yahoo
>
> I have photos, serial number, and videos if useful.
>
>
> Thoughts, suggestions