Need help with a BA11-K power supply

Tony Duell ard at p850ug1.demon.co.uk
Sat Oct 22 15:46:49 CDT 2005


> 
> Alright, I thought I would crosspost this to see if anyone here has one of
> these modules.  I don't even need to look at this, I remember that the relay
> does not kick on at all.  I have a DEC jumper that runs across the two molex
> terminals on the back of this module that just plugs in.

I didn't think you needed any kind of jumper with this module. The 2 3 
pin connectors on the back are for the power control cables to the power 
controllers, there's a similar connector on the front that goes to the 
frontpanel power switch, and a 4 pin connector on the front to the mains 
transformer primary. 

Do you have the printset (schematics) for this unit? From what I remember 
(and it's been several years...) the power control circuit that operates 
that relay is very simple, and you should be able to track the problem 
down to a simple component.

-tony


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