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Not clear if the problem is horizontal sync or both vertical and horizontal. If H only, do a quick oscillator alignment and see how it works. Don't overlook the dual diode. The circuit is always trying to correct to near zero. A bad diode will not affect waveforms, only the DC correction voltage.
The networks are fairly reliable, particularly the dark red Eric Pacs. Those are also repairable as long as you know which component you are replacing.
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