Re: wg6100 HV problem

Check for :
1/ C901 shorted
2/ Q900 tab shorted to ground (bad insulator or no nylon insert on screw)

William Boucher
  ----- Original Message -----
  From: Kevin Moore
  To: vectorlist@vectorlist.org
  Sent: Monday, October 26, 2009 9:04 PM
  Subject: VECTOR: wg6100 HV problem

  Hello all,

  Trying to figure out a problem with a HV board. I'm pulling about 16v across R901. R901, and R907 have been replaced with 3.9ohm 5watts. But for the life of me I haven't been able to figure out why it's pulling that much voltage. My others are only pulling about 2-3v. Naturally it burns up the resistor in short order.

  q900, and 906 don't appear to be shorted, and I have swapped them for good measure. I've been taking measurements, and checking everything, and all seems good. I've been staring at these schematics now for hours trying to figure out where the problem might be, and I'm at a loss right now. Brain has officially locked up for the evening.

  Hoping one of you guys can point me in the right direction.

  Thanks,

  Kevin

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Received on Mon Oct 26 21:35:34 2009