Re: Tempest resets at specific point in attract

From: Kevin Moore <talon.k_at_gmail.com>
Date: Thu Jun 28 2012 - 10:30:22 EDT

That tempest text is generally a bad Dac08

Kevin

On Thu, Jun 28, 2012 at 8:35 AM, Andre <livnfree_can@yahoo.com> wrote:

> Have a tempest pcb that played blind in a working cab. Found a couple pins
> touching between a cap and resistor by the y 1495's. Pulled the legs apart
> and screen came up, but entire image shifted half off bottom of screen. One
> of the 1495's was dead. Replaced and seems to work fine... but...
>
> In attract mode it does an odd thing. Everything looks ok until it gets to
> the screen where the word 'tempest' comes towards you. The roman numerals
> in front of the word 'atari' fade out to black, but the word atari is fine.
> When the word 'tempest' zooms towards you, the word trails do not fade out
> but stay on the screen so the entire mass of tempest words start to ripple
> severely.. by ripple its not a physical monitor ripple but a fade to black
> ripple.. actually looks like the ripple effect you see when you try and
> film or take a picture (the camera viewfinder image) of a running crt, but
> way worse.
> As I let it cycle a couple times through attract watching what it did, it
> eventually just would reset when the tempest words shot out about 1/3 of
> the way. There is a coin door click and the attract is starting over
> instantly. Its not monitor or cab as works fine with original boardset. Any
> ideas?
> --
> Sent from my Android phone.

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Received on Thu Jun 28 10:30:43 2012

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