Recently, my Sony 27+ (1999) TV began taking about 5 minutes before the picture came on & slowly graduated to 20 minuted & then NO picture. The sound is clear & the volume & channel selectors work. Can anyon give me some information about why this happened and/or if it's a 'major' problem for repair?
I have a 1988 27" Magnavox RH4540 WA01 with the similar problem. The sound is perfect and the channels change but I don't get a picture for about 45 minutes, and then the picture isn't nearly as clear as it was.