RE: Amplifone problems

Sorry, three more things to add:
1. This board already has a Wintron installed. It has been working great in
the Star Wars for quite some time. (a couple years?)

2. I measured the HV after the problem started, it is right around 19.5kV.

3. This HV board is a blue one, it has had the 5 watt resistors and diodes
added to it.

Thanks
Robb

> -----Original Message-----
> From: owner-vectorlist@vectorlist.org [mailto:owner-
> vectorlist@vectorlist.org] On Behalf Of Robert Gonyer
> Sent: Sunday, April 11, 2004 9:10 PM
> To: vectorlist@vectorlist.org
> Subject: VECTOR: Amplifone problems
>
> Hi again everyone, now that I'm done fussing with 6100's, it appears I
> have
> to do the same with a 19" Amp.
>
> I recently acquired a non-working Quantum in good shape, but not working.
> The game played blind, and it had a red HVT in it, so I figured that was
> likely problem #1. So I pulled the HV board out of my Star Wars UR and
> put
> it in the Quantum, and all was well. I ordered a Wintron to fix the
> Quantum
> HV board, and haven't gotten around to having it installed yet.
>
> Anyway, I pulled the HV board out of the Q a few days ago to do some work
> on
> my Star Wars. It was working fine. Put the board back in the Q
> yesterday,
> fired it up, and nothing. After a minute or so, I could see a very dim
> and
> very out of focus picture. So I reached around and turned up the
> brightness
> a bit, and it did get brighter, but it is still way out of focus, still
> dim,
> and I could see retrace lines. Also, the screen size wasn't right (the X
> axis was way too big), aside from the fact that I had not done any
> adjustments since the last time this board was in the Q.
>
> About this time I could sense the presence of that great burnt "something"
> smell, so I shut it down. Felt for warmth and the large resistor near the
> red can was VERY hot. It appears that both of those resistors were very
> hot
> at one time or another, but only that one was hot at this point.
>
> I haven't worked much on amplifones (yet), so I'm at a loss as to what to
> try next. I've done some googling and also searched the vector list
> archive, and didn't come up with much. Is this something common anyone
> has
> seen?
>
> Thanks for any help.
> Robb Gonyer
>
>
>
>
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Received on Sun Apr 11 22:44:08 2004