Re: G05-802

By the way, I should add that I first determined that my problem was *not*
in the deflection board. I would highly recommend you inspect the Z
amplifier circuit and make sure the signals all look good before making the
modification I suggested. I had to make a modification due to the brand new
replacement picture tube I put in. Your problem could be somewhere in the Z
amp circuit or something like that.

Matt

----- Original Message -----
From: "Matt Rossiter" <rossiter@ni.net>
To: <vectorlist@vectorlist.org>
Sent: Saturday, June 11, 2005 3:25 PM
Subject: Re: VECTOR: G05-802

> I just posted a solution to a similar problem yesterday. :) Pull out
> resistor R518 (470K) and replace it with something of less resistance. I
> would recommend something between 350K to 400K (1/2 Watt). This gave me
> alot more control over the brightness.
>
> Also, be sure your voltages are all correct, make sure you have about 90v
on
> pin 1 of the P500 connector. That solved my problem anyway, yours might
be
> something different. My game has been running for a day now and no
problems
> yet.
>
> Matt
>
>
>
> ----- Original Message -----
> From: "Tom Bombaci" <tom-bom@pacbell.net>
> To: <vectorlist@vectorlist.org>
> Sent: Saturday, June 11, 2005 2:13 PM
> Subject: VECTOR: G05-802
>
>
> > I am troubleshooting a G05-802. I have retrace lines that will not go
> away.
> > The center dot is very bright as well. I have installed a cap kit from
> bob,
> > I have replaced both the brightness and contrast POTS and I just
replaced
> > q504.
> >
> > After the cap kit, the contrast POT did nothing. After replacing both
> POTS,
> > the contrast POT still does nothing in terms of adjusting the contrast.
> >
> > Thoughts?
> >
> > Regards,
> > Tom
> >
>
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> >
> >
>

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Received on Sat Jun 11 18:34:20 2005