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Originally Posted by andy
I'm having a problem getting it to focus after I disassembled the focus magnet assembly to clean out the old sticky grease and lubricate it. I'm sure I put it back together exactly the same way, but now the focus knob has very little effect and the picture is always very blurry. It's so blurry that 1" high text is completely illegible. I've tried adjusting all the CRT neck adjustments with no improvement. Has anyone run into this before with a permanent magnet focus assembly?
Here's a close up picture of the focus assembly before I dissasembled it. It uses 3 magnets located 120 deg. apart around the CRT neck. The focus is adjusted by moving a metal sleeve in, or out.
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Random thought:
Is it possible you have one or more of the 3 magnets installed in reverse?