Question about RCA TruFlat 27F520T 27" TV

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Tv comes on and off by itself, sometimes it blinks on and off. tv is 3years old. i put all my cords on a power surge . i recently put a dvd on my tv. need help to see if i need to buy another tv?

TV turns itself on and off. It also goes through the menu that presets the channels. Then the only way to finally turn it off is to unplug it. The unit is about 4 years old and has never done this before. Checked the remote, removed the batteries, changed for fresh ones. Tried spraying bottled air into buttons (Dust?). If I depress and hold menu button TV holds to one station but you cannot change volume levels or anything else. Is this worth fixing? Thanks Gliterbechba! I had the same problem today, TV turning off and on seconds apart. Took your advice and found the wire connecting the manual controls to the circuit board and unplugged it. It was a piece of cake, no problem. TV works fine now, just always have to use the remote which I did anyway. Thanks again. my tv comes on by itself, its stays on for several minutes then cut off. sometimes it blinks on and off. my tv is 3 years old. i need to know do the sensor light suppose to be on or off when the tv in off. i recently put a dvd on my tv. i neeed to know what the problem is, or do i need to buy another tv?

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Rca tv alway have that problem. you could try to clean up all control bottom in control panel or change all.if not. best thing you take down all bottom then only use remote control to operation that tv. good luck!

Posted on Apr 29, 2010

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Sounds like the power supply board is dead. Probably has a blown power line fuse on the board. A power surge will sometimes blow the fuse and protect the board from damage. Replacing the fuse will restore the TV if this is the case. Most times though, the supply has a blown part that causes the fuse to blow and your only option then is to replace the board.

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Try disconnecting all of your HDMI cables and plugging the power cord of the TV into another wall outlet. If this resolves the issue, you may have had a small power surge from either your wall outlet or one of your source devices. It is recommended to connect your TV to a surge protector if you haven't done so already.

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After the power surge , the TV went on protect mode.

Try first leaving the TV power cord unplugged for some times, let say one hour or so.

Also ensure that the fault is not coming from a faulty receiver box sending bad signal, check if you get same problem with no receiver box or dvd connected.

If that does not work, and you keep having a flashing led on front of the TV, and tv turning off by itself after a while, that indicates a fault condition.

The flashing light indicates a diagnostic state called protection.
When the TV goes on protection there are only two possible reasons.

1The internal circuits are jammed because of electrostatic charges accumulating on capacitors, or because of a wrong voltage read by the main chip on your monitor controller board. this started the protection circuit.

2 The protection circuit detected a wrong voltage or abroken contact, identified an internal fault and kicked in , startingthe flashing light.


If you are in situation one, then theTV will reset just unplugging power cord for one or two hours,sometimes even minutes.

If you are in situation 2 , then there is an internal fault.

Common faults that can occur after power surge on a rear projection are a blown capacitor on power board, a component on ballast board has blown, or a fault on Digital board had occurred.

If under warranty contact the manufacturer ringing the number on the user manual

If you want to repair at your own expenses, just locate any good qualified repairer.

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  2. Unplug the television power cord from the electrical outlet.
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