First off, it has scan velocity modulation that can't be disabled even in the service menu. I've searched Google and nothing has helped me, except that I hear I can disable it by cutting the power supply to the circuit. Where should this be? I got the service manual on my hard drive, and that doesn't say how to disable it. The CRT block schematic even says "(WITHOUT SVM)". I took off the back shell and took a few (blurry) pictures of the CRT block:
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It also has a horizontal S correction issue I'd like to correct.