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

You would NOT see a degaussing effect. It happens quickly before you would see
a picture. It makes the sound of a "buzz" or hum when you first power the
monitor..
If your convinced the yoke did not move then find someone who has a degaussing
coil to help you out. When you moved those other rings you may have disturbed
the purity rings otherwise It sounds like your yoke moved forward slightly.
Loosen the yoke lock and pull the yoke back slightly also straighten the
picture while your doing this.

Steve

Jonathan Stanley wrote:

> I think the degaussing coil is not working because the colors are off
> in the corners of the screen and it happened right after I moved the
> game - it looks like a magnetic color shift to me. I didn't take a
> picture of it - the pictures I showed are of the left corner which
> looks fine. When I first turn the game on I don't see any degaussing
> effect on the screen. Could I try to measure voltage at the
> degaussing connector on the deflection board as I switch on the game?
> That's DC, right?
>
> The rings are all at their factory positions, except I have tweaked
> the outer green and red/blue convergence rings to get the display as
> "good" as it is now. Everything else is still the way it was sealed
> 20 years ago.
>
> On Sat, 22 Mar 2003 15:40:19 -0600, SteveT wrote:
> >Jonathan,
> >What makes you think the degaussing coil is not going on?
> >Some of the problems you mentioned have to do with the yoke.
> >The position of the yoke (left or right) will effect how straight
> >the image
> >is.
> >The position of the yoke forward and back will effect purity.
> >The angle of the yoke on the tube will effect the edge convergence.
> >Also those rings on the neck will not only effect static convergence
> >but purity
> >as well. Have those adj. rings been moved? Are they sealed together?
> >
> >Steve
> >
> >Jonathan Stanley wrote:
> >
> >>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.
> >
> >---------------------------------------------------------------------
> >------
> >** 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 17:00:41 2003