Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems.

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rkm0
 
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Default Sony KV-20TS27 20 inch TV tuner failure?

I have a Sony KV-20TS27 trinitron TV, made in February 1992. It
displays UHF channels and the composite video fine, but doesn't display
VHF channels. Actually, it seems to display them intermittently;
haven't tested it thoroughly, but it seems that the VHF channels work
when the TV has been running for a while and heated up.

Is this a VHF tuner failure? How can I fix it myself? Perhaps something
as simple as a failed solder joint?

Thanks!

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