Hi,

Picture and sound work great on our Sony Trinitron KV-27TW70, as long as we use a vcr tuner routed through the rear of the set a/v inputs. On occasion the tuner works properly, and when it doesn't there's anywhere from a slightly shrunken picture to a white flat line in the center.

Believe the tuner has been repaired/replaced once, after possible damage by a power surge.

Any tuner repair suggestions? Re-solder some specific connections?

Thanks, Gerry