Re: star wars problems

From: Mark Shostak <shostak_at_augustmail.com>
Date: Sun Oct 13 2002 - 21:11:56 EDT

Gav,

It honestly sounds more like an AVG problem than it does a monitor problem.
The best way to confirm this would be through substitution.
Either swap the AVG board with a known good one or swap the monitor itself.

If this is not feasable, since you have a scope, you can still
worm your way out of this one.

I would suggest (barring the above), putting up a cross-hatch pattern.
This should at least confirm which axis you need to troubleshoot.
Then, after _confirming_ (once again) that it looks correct on the scope,
start tracing the signal through the suspect axis' signal chain,
until you find where your waveform gets buggered up.

Feel free to report back with your findings and we can give you
more specific information at that time.

-Mark

----- Original Message -----
From: Gavin and Lesley <gav@gavnlel.co.uk>
To: <vectorlist@synthcom.com>
Sent: Sunday, October 13, 2002 5:38 PM
Subject: RE: VECTOR: star wars problems

> Hi all,
> Sorry should have mentioned that I had already looked at C4 and
> its fine - swapped one out from another board just to double check.
> Anyway further developments are pointing me towards the monitor for this
> problem, the screen has squashed up a lot further now, not completely as
> it would with a transistor failure, but the bottom half of the screen is
> compressed into the centre - looking at the output on my scope gives a
> perfect picture. - so anyone any ideas where to look on a wg6100 -
> capped 3 months ago with a lv2000 installed at the same time.
>
> Cheers
> Gav
>

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Received on Sun Oct 13 18:14:31 2002

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