Re: 15v2000 Help

maybe one of transistors is bad I have had a few that were bad from new. Maybe they are in the wrong places PNP were the NPN should be?
  ----- Original Message -----
  From: Bob Langelius
  To: vectorlist@vectorlist.org
  Sent: Thursday, February 23, 2006 3:02 PM
  Subject: VECTOR: 15v2000 Help

  I have been trying to get the 15v2000 in my Ast. Dlx. Cabaret up and running. I have another working unit to swap assemblies from.

  I tried it briefly and got no picture and no glow. I decided to do a cap kit and solder headers and replace chassis transistors.

  Tried it last night and the r100 and r101 resistors got smoking hot. HV was around 25KV.

  So I swapped the suspect hv unit and deflection boards into my working unit. they both work fine in the known good unit.

  So now i have it isolated to the chassis or the tube. The chassis transistors are not shorted to the chassis. I guess i'll try swapping tubes.

  Could it be the harness? The Dag connector spring(I moved it back and forth a bit to break any corrosion)? Can I swap in a 19" Tube to test?

  Any other ideas?

  Thanks,

  Bob

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Received on Thu Feb 23 10:44:14 2006