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

---------------------------------------------------------------------------
** Unsubscribe, subscribe, or view the archives at http://www.vectorlist.org
** Please direct other questions, comments, or problems to chris@westnet.com
Received on Sun Oct 9 01:05:55 2011