RE: 15v2000 Help

Simon,
You hit it! I foolishly had two of the Transistors swapped. All is well now.

Luckily the smoke didn't get out.
 
I also noticed the newly fixed monitor is centered better than the old one.
Is that adjustment the X.lin./Y.lin. Pot on the deflection board?
 
Thanks for your help.
 
Bob

  _____

From: owner-vectorlist@vectorlist.org
[mailto:owner-vectorlist@vectorlist.org] On Behalf Of simon hanlon
Sent: Thursday, February 23, 2006 10:44 AM
To: vectorlist@vectorlist.org
Subject: Re: VECTOR: 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 <mailto:bob@miltonmerl.com> 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 13:18:06 2006