I bought a used trailer with a 24 inch furrion tv in in the tv turns on goes to the current channel then shuts off a couple minutes later it does the same thing

SOURCE: T V Shuts off by itself, after a couple of minutes.

Hi there,
here is some tips for ur TV which blinks 4 time.
1 Probable
Cause
Location


Solution • +13V is not supplied.
(A Board)
• IC503 voltage list is faulty.
(A Board)

Detected
Symptoms


• Has entered standby state
Solution after horizontal raster.
•Vertical deflection pulse is
stopped.
•Power line is shorted or power
supply is stopped.


this info must remady ur problem.

SOURCE: Tv cuts off and green light flashes

If your set was manufactured around July 2005, you may need a firmware upgrade to solve this issue. On the Sony website you can enter your model # and serial # to see if you TV is affected. If so, it is easy to have done and may be free from Sony. It sounds like the issue they described in the writeup on the required formware update. I had mine done within few months of when i bought it (purchased in Dec 2005) and it has been working flawlessly since.

Good luck!

Donnieboy999

SOURCE: Panasonic 52 inch TV turns on and turns off after 2 minutes

thi set will need repair , one of the circuts in the power section is failing and will need test to determine the exact cause of the failure, you will need to call your local electronic repair shop to come and take the board out or they will fix it there
if you need anymore assistance don't hesitate to ask

electech

SOURCE: TV won't turn on even though it starts green, then goes off

Symptoms of a Defective or dying Power supplies on LCD TVs.
1. Light(s) on the front panel are behaving not normal example, blinking, amber color or not steady, fainting, etc.
2. TV not turning ON properly.
3. TV turns OFF by itself.
4. Needs to be unplug to many times to make it work.
5. Humming or high pitch noise heard through speakers or at the back of the TV.

I repair these power supplies. Write to [email protected] if you require further assistance

SOURCE: Sony kdfe60a20 - The TV turns on but after a

classic Sony telling you the lamp is going bad. Replace lamp yourself it is consumer replacable.