RE: Re: Jumpy Star Wars Fixed / Degaussing Help Anybody?

First check to make sure the posistor is even there, and if so, check for
cold solder joints on the legs -- the posistor is a larger component and
tends to get knocked around (and even off) when mussing w/ the deflection
board.

Next, check to make sure that the degaussing coil is plugged into its
connector on the harness.

Report back.

> -----Original Message-----
> From: owner-vectorlist@synthcom.com
> [mailto:owner-vectorlist@synthcom.com] On Behalf Of Jonathan Stanley
> Sent: Friday, March 21, 2003 10:00 PM
> To: vectorlist@synthcom.com
> Subject: VECTOR: Re: Jumpy Star Wars Fixed / Degaussing Help Anybody?
>
>
> Jumpy Display Fixed:
> I found the problem with the jumpy vertical display on my Star Wars
> (amplifone). It is a bad "Y-Size" 10K pot on the deflection board.
> If I reduce the size, the jumpy screen gets totally solid. If I
> widen it back out it gets jumpy again, but if I widen it even more,
> it gets solid. So there must be a bad area in that pot. I slightly
> reduced the size and the display has been rock solid ever since.
>
> Degaussing Help?
> Can anybody help me figure out why my degaussing circuit isn't
> working? I do not hear or see any degaussing when I first power up
> the game, and in fact the right side of the screen (upper and lower
> corners) clearly needs to be degaussed. I read about a Posistor
> (a.k.a. Thermistor?) at R74 on the deflection board. Should I
> replace that first or look elsewhere?
>
>
>
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Received on Fri Mar 21 22:32:27 2003