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

Ok, I completely removed the posistor (it wasn't loose) and
resoldered it to the board. Then I reflowed the jack for the
degaussing coil and tested the pins with a meter. But I am still not
getting any degaussing. Is there a way to test the posistor? Is it
possible the degaussing circuit could be functioning, but leaving the
right side corners of the screen messed up?

On Fri, 21 Mar 2003 22:31:10 -0800, Bret Pehrson wrote:
>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?
>>
>>
>>
>>--------------------------------------------------------------
>>-------------
>>** To UNSUBSCRIBE from vectorlist, send a message with
>>"UNSUBSCRIBE" in the
>>** message body to vectorlist-request@synthcom.com. Please
>>direct other
>>** questions, comments, or problems to vectorlist-
>>owner@synthcom.com.
>>
>>
>
>
>---------------------------------------------------------------------
>------
>** To UNSUBSCRIBE from vectorlist, send a message with "UNSUBSCRIBE"
>in the
>** message body to vectorlist-request@synthcom.com. Please direct
>other
>** questions, comments, or problems to
vectorlist-owner@synthcom.com.

---------------------------------------------------------------------------
** To UNSUBSCRIBE from vectorlist, send a message with "UNSUBSCRIBE" in the
** message body to vectorlist-request@synthcom.com. Please direct other
** questions, comments, or problems to vectorlist-owner@synthcom.com.
Received on Sat Mar 22 07:37:58 2003