I have a Sony KDF-42WE655 DLP set that recently stopped storing channels. For the past 5 or so months our channel line up has consisted of about 30 channels (we get basic cable) and about 100 channels of "no signal", black screens etc. I decided to run the auto program option in the menu in hopes that some of these erroneous channels would disappear. After the auto program completed, our channel line up was great. It appears that after the set has been off for a few minutes and turned back on I am greeted with a "no signal" screen with no channels. In some cases the tv will not change channels; ie when channel +/- is entered the last digit on the screen will flicker but will go back to its original position. Interestingly enough, when the set is turned off and immediately turned back on all channels remain. It seems anything longer than 1 minute and the channels dump.
What makes this equally interesting is that I have the same set in my basement (55" version) that still has the entire channel line up. I have not run the auto program on this in fear of the same thing happening. Our 42" "works" but we have to run the 50 minute auto program every time we watch to watch tv now. Any thoughts on what might be causing this would be greatly appreciated.
Thanks, Lenny