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[email protected] pfjw@aol.com is offline
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Default Old Tube TV Keeps Changing Channel to Channel 2: Hitachi CT-1955NP85XA Chassis / 19" Color-1984 Purchase

http://diagramasde.com/page/2118

Might be something usable here.

My S.W.A.G. guess based on similar-vintage technology failing-to-default is a weak capacitor that does not hold the charge necessary to 'latch' to the chosen channel.

Peter Wieck
Melrose Park, PA