While you wait for answers, we may have found some information which could help you.
Click here for Sound Tv WorksMy zenith flat screen goes in and out of being fuzzy?
my zenith 582541X won't turn on?
std zenith tv shows only one thin horizontal line?
how to fix this problem?
My plasma has sound but no video?
How can I get my Television (1996 Zenith H2707DT to switch to aux?