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RCA HDTV Shuts off

I have a 57" RCA HDTV that randomly shuts itself off. Usually if left off for a few minutes it will turn back on. There is no rhyme to when it turns off, sometimes it after only being on for a few minutes other times after a long day of the TV being on.

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6 Suggested Answers

  • 1694 Answers

SOURCE: RCA TV

Solder bad connections...main board with hv transformer on it..
CL035 capacitor and any others...use magnifier........T.

Posted on Dec 02, 2007

Axle80
  • 73 Answers

SOURCE: TV shuts itself off

Something is overheating or you've got leaking capacitors somewhere. I'd start with the ballast board. Its directly underneath the lamp housing. You can access and remove it through the lamp door. Replace that and if that doesn't solve the problem, comment again, and we'll move on to more complicated repairs. You haven't noticed any weird noises, humming, screeching or similar oddities from the set? Turn the set on with the lamp door open and bypass the switch with a piece of tape, if you hear something like a hum, you may have a bad color wheel motor.

Posted on Mar 23, 2009

  • 1 Answer

SOURCE: LG 52SX4D turns off randomly.

My Lg 52"tv turn off and on

Posted on Aug 15, 2009

  • 18 Answers

SOURCE: Our 61

THAT SOUND LIKE A SAFETY SWITCH TO KEEP FROM DAMAGEING YOUR SYSTEM. TAKE IT TO A REPAIR SPECIALIST.

Posted on Oct 26, 2009

  • 148 Answers

SOURCE: My Samsung HL-R5087W HDTV turns itself off

Sorry to hear this, but fortunatly this is going to be an easy and cheap fix-BUT ONLY IF YOU DO IT YOURSELF!!...A repair man will charge you $ 200/$300 to order a powerboard and install that, something a novice can do in 20 minutes ( a pro in 4 minutes), by replacing the "popped" capacitors yourself...Let me explain;.........The "caps"(capacitors) in the powerboard are going out. This is a very common problem in all class and price ranges of modern lcd and plasma tv's/ monitor's. I don't know if this problem has been like this for awhile or it just started, but either way, if the tv takes an abnormal amount of time to "warm" up then it most likely will go out all the way sometime in the (near) future. If you have a tiny bit of will and knowledge ypou can open the unit and get to the print board. Examine this for "popped" capacitors, they will have a buldging top instead of a flat one. Im gonna try to include a pic of them here, if i can get it this time, I've tried bfore lol. But you can google image a "popped" or "bad" capacitor and you would be able, with ease, to diagnose if you have any of these. Usually only one or two. Radioshack sells capacitors (couple anyway) for $1.59 each. MAKE SURE the replacement is of the SAME voltage or HIGHER, or you will be right back replacing those 2. Every capacitor has a negative pole marked with an (-) on the side of the capacitor(by one of the "legs", always puit the negative (-) "leg" of the new capacitor in the same hole in the printboard as where the previous negative (-) "leg" of the capacitor was ( a capacitor with the negative and positive "legs" put in backwards will result in the new piece "popping" as sson as you turn it on!!) make sure the "uf" rating (for example the most common popped capacitor is the 1000 uf) is the same as the one you are replacing. I needed 1000 uf, 105 c and 26v (volt) ratings for the 1 capacitor I needed to replace to fix my LG 19" lcd panel monitor I found by the trash that the light came on off, but it didn't come on. I replaced that capacitor with ; 1000uf, 85 c and 36 v (volts0...It works fine eventhough the volts and the temperature rating (36v and 85c) was not the same as the (26v(volt) and 105c ) capacitor I removed !! Further, I've replaced capacitors that had the celcius rating of 105 with the only ones Radioshack had, namely 85 c(celsius) they have been working great, but I'm not sure about any effect, nor have I heard or read (yet?) about that making an urgent difference. Many threads that I've read people have done the same, so we should be ok (my stuff has been running good for a while longer then most brand new ones!.............(all these ratings ; 'uf ' and 'c' etc are on the side of the capacitor you are replacing and on the side of the ones you are replacing them with)...For all this all you need is the cheapest solder gun u can find (I bought one for $7.99 at Radioshack), a camera (to take pictures as you go to remember how to reassemble the unit) and, once you have your materials, 20 minutes to replace 2 or 3 capacitors and you are good to go...Most monitors and tvs (lcd/plasma) I've seen you have to lay flat on the ground/bed/blanket etc, to work on (screen side down). Usually there are 2 or 3 screws (or a few more) to remove, then you will have to carefully (its comes off easily most times)insert a flat screwdriver inbetween the casing and gently pry it up as you go around the whole frame. Sometimes you have to remove the little washer arouind the cable input orso, just be gentle and you cant go wrong. Once insidet here will be a box with wires running to the sides etc...unplug, gently, these wires and open the box. Inside you will find 2 or 3 circuitboards, check them all for "popped" capacitors, replace, reassemble and plug it in....Now go fix the neighbor's tv/monitor, just to show off :P
I really hope you take my (experienced) advice, it is well worth the time.

Please rate if this has/ has not helped you!

Posted on Feb 02, 2010

  • 2501 Answers

SOURCE: 57" Toshiba projection TV randomly turns itself off and on

Look for loose connections in the power supply (plug, socket).

Posted on Feb 25, 2010

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Solder bad connections...main board with hv transformer on it..
CL035 capacitor and any others...use magnifier........T.

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