RCA F36650 36" TV "sharp shut down itself" Questions

shut off itself sharp. tv 25" model#25rs100s. 4 years old . first thing find vertical transistor #la7840. burn up . replace back same # la7840, tv come on but shut down . unplug& plug in back tv still

...Sharp CX68E4, 32" tube will not switch on, everytime i try to switch the tv on, it emits a static like sound from the speakers and the shuts off. The sound last for about 2-3 seconds before shutting ...

...protected. my TV has dead but not same of the 1st and 2nd time,and the switching be protected. The set shuts down after one or more times?  It is called shutdown and the set is protecting

Sharp 32 in 4 year old tv no picture -- when unplugged and plugged in again we get a "flash" and some sound that it turns off. There are a few things that can cause that. Pretty much the TV is ...

sharp 36in tv tv shuts down by itself,then i bang on the back then replugit back in run my hand on the picture tube to create static.then works for awhile.thanks Your problem may well be a loose ...

sharp increase in beam current and the power supply shuts down into standby mode. To prove the point isolate the red and green cathode pins on the tube base and cross couple the red video output stage

...shut off. I could see an arc at the back of the flyback when you turn the set on, corresponding to the three clicks. When you replaced the flyback the new flyback is shipped with the screen and focus ...