Quote:
Originally Posted by old_tv_nut
A DC current would shift the raster sideways, not wrap it around.
Bob and I have started an email exchange. I think the problem is somewhere around the sync discriminator or its inputs.
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I agree. The H osc appears to be locking to the sync, but locking to it out of phase. The horizontal phase detector/horizontal AFC circuit is probably the issue though if the sync or sweep signals feeding it are somehow phase shifted that could also do it.