Check power settings if not set to go off in few minutes then bad power board
SOURCE: rca 32v432t tv plays,turnsoff,turnson, and stays in autochannel search mode
your going to need to do a resolder of dry looking solder jobs and or poor solder jobs
this could also be your front control board , try disconnecting it and see if the tv stays on
it is possible that the sensor has gone bad or the crystal needs to be replace or worse the EEPROM
my rca 27 in was doing the same thing , i resoldered the board and it worked great for 7 months
so do a resolder of all suspicious solder and heated components
then let me know what happens
also what is your model # for your rca tv ?
also one of rca's kits for repair is some solder and paste , so that should tell you something in its self about rca repairs ( the solder with the paste is supposed to make it handel heat better )
please give a fixya rating so that if you need more help in your tv , I can continue to help you further , thanks
electech
SOURCE: have picture lose picture tv turns off and on
the lamp has a life cicle. if yours is been used a lot. then the lamp has to be changed. when the tv cannot turn on steady and gets off imm. the computer inside the tv tries to turn off the set but the lamp charges again and the micro tends to keep working. the first step to take in this tv is to change the lamp to eliminate this common source of problems
SOURCE: TV stays on for few mins and then turns off
IF its the lamp for Lcd. Hi,it sounds like your lamp is going bad,its symptoms are : will shut off and on,led indicators.The lamp on your set last 6000-8000 hrs 2--3 yrs and its made by Philips .Part # is xl-2200 found it here: http://www.discount-merchant.com/SearchResults.asp?Search=XL2200+?Click=48173 God bless you!
SOURCE: Legend LCD tv power issue
It's the power supply gone bad, just had the same problem. The repair guy charged $195.
SOURCE: Legend LCD tv power issue
the problem is inside th vga hdmi board ,i have repaired 2 of these units the 37 inch version and found a bad 100 mf 10 v capacitor . little bit of soldering/de soldering skill is needed . cost of cap 0 dollars got it from old radio. ernie
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