Tv will not stay on - Symphonic ST420FF 20" TV

my 42 inch sagem tv is overheating, the red light comes on, then 2 lights come on and then turns off, and light stays on. and only turns off when you disconnect tv. When i turn on the tv after 1 min the light flashes, the tv turns off and the light stays on.

what's wrong with my Sony trinitron XBR tv's timer

Hello ! this problem can come about if the video card has faults ie processor lickage or an i tem is burnt , processor over heating .
I recomend u change the video card

good luck

Hi, you have a leaky diode, it will not hurt your tv it`s just annoying, my Hitachi has done the same thing for a year and I`m just too lazy to change it out, video-tek

My Sylvania T.V. turns on and then it turns off by itself. It only stays on for onr minute.

MY SAMSUNG 27# MODEL TXT27820 ONLY NINE MONTHS OLD SHUTS OFF BY ITSELF AND WILL NOT START AGAIN

The vcr carriage was probably damaged ( broken gear or carriage gear, etc ), As for repairing it, it may not be worth it and chances are, you won't find a new carriage for the unit. I have, in the past, disarmed the VCR unit and at least the customer could watch the TV. Thats not possible in every set, but it seems to work in the majority of them. Good Luck
Ed
NC Electronic
Mills, Wyoming

TV turns on but doesn't stay on goes in and out then blank screen. LED light stays on during the entire time your problem is called hunting you can check power supply of your tv .It common problem in Philips T.V. Thanks