From: joe@user.com   
      
   That 'connector' should have +5VDC and +12VDC on it.   
      
   It's been a LONG time, but if you have AC on the output, the first   
   place you look on tht power supply board is the FWB.   Then once   
   you have DC on the board, then start figuring out what you blew   
   in the regulator circuit.  I seem to recall there was a 723 regulator   
   circuit on that thing.  It was way overkill for what was needed.   
   Well, maybe not, but you can still get by with just a 7805 and a   
   7812.   
      
   Mike   
      
      
      
   "pomprocker"  wrote in message   
   news:1166255249.673557.30720@16g2000cwy.googlegroups.com...   
   > As I measure the voltage of the output of the attached wall wart it is   
   > correct. Red 9.6VAC, Yellow 9.6VAC, Black 15.7VAC, White 15.7VAC. These   
   > output conductors get connected to a PCB. from there the voltage was   
   > again measured as correct. The voltage goes through a bunch of   
   > capacitors etc.. and then go to a molex connector that connects to the   
   > drive module. The wires connected to the molex connector are NOT color   
   > coded, they are all white. I will just say that the two in the middle   
   > have no voltage (assuming they're ground) and on one side I have 10VAC,   
   > and the other has some sort of PCB mounted trimpot that controls its   
   > voltage ranging from 22.5VAC to 30VAC. When the molex connector is   
   > connected to the drive unit, it does not spin up or light up the red   
   > LED.   
   >   
   > Do the two middle conductors on the molex connector need to have   
   > voltage or what? What should the trimpot be dialed to? What else should   
   > I check for?   
   >   
      
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