Re: Xentek Cinematronics Power Supply

Shorted rectifier diodes CR1, CR2 or both together could cause
those symptoms too. I'd suspect them first.

Dave
  ----- Original Message -----
  From: Matt Rossiter
  To: vectorlist@vectorlist.org
  Sent: Friday, June 18, 2004 6:05 PM
  Subject: VECTOR: Xentek Cinematronics Power Supply

  I'm working on a Xentek power supply which keeps blowing fuse F2 (3A slow blow). In fact I have 3 power supply units that I've thrown on the shelf with a similar problem. I figure this must be a common problem with the cine power supplies.

  Here's a schematic
  http://rossiters.com/cinematronics/Xentek-Power-Supply.pdf

  The unit will make a short buzz sound before blowing the fuse. I've tried it without anything plugged in except the power cord itself.

  Maybe the large capacitors are shot? I wouldn't imagine the transformer went bad.

  Matt

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Received on Fri Jun 18 19:05:41 2004