Re: Another K6100 HV question

Lots of good folks already answered your question but just in case...

I have a list of replacement parts for the wg6100 on a webpage here:
http://www.biltronix.com/arcade_electcomp_01.html#wg6100_rebuild_parts

This list includes the 150V zener as this
 http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail?name=1N5383BRLGOSCT-ND

Looks like I neglected to show a source for Q900. I'll have to fix that.

William Boucher
http://www.biltronix.com
  ----- Original Message -----
  From: David Shoemaker
  To: vectorlist@vectorlist.org
  Sent: Sunday, October 09, 2011 1:05 AM
  Subject: VECTOR: Another K6100 HV question

  As I was on a roll I figured I would take a crack at another of my HV units.

  No stable HV, B+ is shifting around.

  I traced back to Q900 (BU409) and found it to have bad voltages (+ / - 26V on all three legs). Figured it was shorted so replaced it with a known good.

  Turned the monitor on and got HV crackle, YAY I thought. Then I heard snap and smelled the magic smoke. BOO.

  BU409 now giving the same values as before.

  I have recapped the HV and replaced Q901, 902.

  Anyone have a reasonable source for BU409's? And any ideas of what is blowing them?

  And while I am at it, source for the 150V 1w zeners?

  Thanks,

  David

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Received on Sun Oct 9 12:23:09 2011