The yoke is to blame. Sometimes, degaussing the screen will fix this.
Otherwise, you'll have to reconverge in the North-South position.
Jon
At 11:27 AM 9/4/00 -0500, you wrote:
>Something similar --
>
>When I face my Tempest East-West, the screen appears normal. Facing it
>North-South, I get the rainbow effect. Yoke position or something else?
>
>
>> << Check the position of your yoke... If it has slipped it will produce
that
>> effect...
>> >>
>>
>> Wow, Thanks Callan! I never thought it could be the yoke - I'll have to
>> check. I looked very closely and noticed the heatwave is a slight
variance in
>> deflection. This goes from the top to bottom of the screen (on Tempest),
so I
>> was thinking checking/replacing Q705 (3716) and Q706 (3792). The
"heatwave"
>> is actually the beam moving up a 1 pixel in different areas of the
screen, so
>> I was really thinking it might be in the Y amp...
>> Anybody have any other ideas??
>> I'm going to check Callan's yoke idea right now, and I'll report back the
>> results.
>>
>> Thanks,
>> MK
>>
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