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Doepfer

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

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Re: [Doepfer_a100] Re: power supply problem + Power Cable Gripe

2004-04-30 by Florian Anwander

Hi Glenn

> improperly pin alignment where i attached a couple power cables to 
> the power bus...
A tip for the future: power up the system after each new module. To 
test, whether the connector sits right.
Before powering up I also use a small dentists mirror to have look at 
the connectors seating.

> can't believe that nothing got fried, but that 
> appears to be the case....
The used power-regulator ICs (7812 / 7912) usually can stand an output 
shortage, if they the heatsinks work well. In case of the Doepfer PSU 
the heatsinks are overdimensioned.


> While doing the troubleshooting, i broke off yet another power cable 
> clip (ie/ i'm talking about the ends of the power cables running 
> between the PSU and busboard, specifically the metal part that fits 
> over one of the bayonets on the PSU or bus board)...
> 
> Anyone else think that these clips fit just a little too tightly? 
> Everytime I remove one, I feel lucky not to tear the bayonet right 
> out of the board -- it's like a strength test.
This hass to be that way. You don't want to know what happens, if one of 
these cables gets loose and produces a contact between the lowvoltage 
and the 220V section....

florian

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