Hi Danny

Am 17.07.2017 um 08:18 schrieb syndromeda@... [Doepfer_a100]:

> Anybody an idea what to do know

1.) Switch off the system
2.) remove the A-134-1 and disconnect it from the supply bus
3.) switch on the system and check whether the -12 volts are available again
* if yes -> the module needs repair
* if no
4.) switch off the system
5.) remove all modules from the rack, do not keep any module connected
to the power bus
6.) switch on the system and check whether the -12 volts are available
* if no -> shot on the supplybus or powersupply broken
* if yes
7.) switch off the system
8.) mount the first module
9.) switch on the system and check whether the -12 volts are available
* if yes -> do the loop from 7.) with the next module
* if no -> you have found the module which causes the -12 volts to
break down.

Florian


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