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

I'm no expert on these, but as I understood it, they conduct electricity
until they heat up. So, when cold it should have continuity. Beyond
that I wouldn't know how to test these, but I'm sure someone else here
will have some better knowledge of them.

-- Curt

>From: Jonathan Stanley <jstanley1@cfl.rr.com>
>To: <vectorlist@synthcom.com>
>Date: Sat, 22 Mar 2003 10:38:55 -0500
>Subject: RE: VECTOR: Re: Jumpy Star Wars Fixed / Degaussing Help Anybody?
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>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?
>>>
>>>
>>>
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>>>
>>
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>
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Received on Sat Mar 22 09:14:05 2003