Hi;
when you say part of the scrennis not there could you clarify?
Is the whole picuture there but shrunk?
If the picture is offset you may have moved the magnets at the base of the crt.
The yoke should be pushed forward as far as possible.
The magnets look like ears sticking out.
A search for "deflection yoke" will show a picture.
You move the ears to center the picture.
Mick M
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