This is a handy reference to have nailed to your 'frig. door. It will give you choices, and a means of distinguishing, between loose yoke, defective caps in the horizontal deflection circuitry, bad power-supply, and many others. I've not met such behaviour as you describe in any of my CCs/P250s (6), so I shall leave it to others (murmur the name of tomlee59 into a megaphone, and see whether he is listening) to chime in with their favourite faults. In the meantime, happy reading!
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