Question about RCA R56WH76 Projection Television

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RCA The tv will not turn on at all. We took the tv to a repairman he he said it was the power supply, it was replaced but soon broke again. The tv work fine as long as we kept the tv on. We made the mistake when we turned it off now the tv will not come back on. Neither color light apears once the tv is pluged up and trying to turn on. Any answers?

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  • redneb May 17, 2008

    t v will not come on. light blinks three times and can hear a high pitch noise, repeats three times before nothing happens at all.

  • sjbethea Aug 23, 2008

    I have the same problem. The power button light comes on three times with a squeaking noise and then goes off with nothing happening. Please help.




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It could be a 2200 35v cap in the high voltage power supply,its behind a u shaped heat sink,it is green in color,if it is bad the top of the cap will be pushed up

Posted on Mar 07, 2008


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My panasonic th-50px60u television turned itself off last night and won't turn on makes clicking noise when unplugged and plugged back in but then nothing red light flashes

Tries tv unplug,replug it back like about an hour later for the tv to do it resetting itself back to the factory setting,tv might work again.If not still same problems.The tv 90-95% it is the board that call the tv power supply board is having a problems.That the board where the tv power a/c cord plug into it.U have all tools and know basic electronic and also can do basic soldering works too?Yes,take the tv aparts,check the tv power supply board carefully for dying and soon to be dead capacitors components parts.These capacitors components parts are alway bulges up or puffing up onto it tops.These dying and soon to be dead capacitors components parts are bulges or puffing ups on to it tops must have to be replaced will solved ur tv power unstable and flashing red light.Or try website like to buy a whole new refurbish tv power supply board for the replacement.

Jul 29, 2011 | Panasonic TH-50PX60U 50 in. Plasma HDTV

1 Answer

My samsung tv model number ln40a55op3f 8. havin troubles getting it to turn wont turn on for like five min, then it will just keep turnin itself on and off until we unplug never see...

The tv have a dying power supply board,that the board where the tv power a/c cord plug into it.U have all the tools and the understanding of basic electronic and also can do basic soldering works too?Yes,take all the Philip screws out of the tv backcover,take the tv aparts and now check the tv power supply board carefully for dying and soon to be dead components parts that are call capacitors.These dying and soon to be dead components capacitors parts are alway bulges up or puffing up onto it tops.These capacitors components parts are dying and soon to be dead must be all to be replaced.After u replacing all the defective capacitors components parts.Now the tv power supply board will be fixed and working correctly again and the tv will not have anymore power delaying like about 5 mins. or flashing LED power light indication,require unplug,replug again awhile before it will turn on.Or tries websites like, to buy a whole new refurbish tv power supply board for the replacement.

Jul 15, 2011 | Samsung LN40A550 LCD TV

1 Answer

TV turns on, then turns it self off about 5 minutes later. Then you must wait awhile to turn it back on. Already checked and there is no sleep timer or any other setting enabled.

I had a similar problem with my Samsung LCD TV. It turned out to be the internal power supply that was the cause of this trouble. When the repairman came out I told him what had been happening and he said "yeah power supply" right away and replaced it (under extended warranty that I usually don't buy) and yay it's working again still 2 years later.

Apr 10, 2011 | Televison & Video

2 Answers

No picture


If you are having sound but no picture on your television, the problem is the t-com board of the television.

Once you have the t-com board replaced, your television will be in good condition once again. have a repairman replace the t-com board of your television and you television will be in good condition once again.

Goodluck and take care

Oct 10, 2010 | Sanyo DP42746 42 in. Plasma Television

4 Answers

Tv will not come on at all, it started out clicking several times when you would turn it on, it took several trys before tv would come on, now it does nothing, only 2 yrs old

Most common for these problems are the power supply board is dead.That the board,where the power a/c cord plug into it.Tries websites like, to buy a refurbush power supply board for the replacement.

Sep 01, 2010 | Vizio L37 Television

1 Answer

TV will not turn on

The tv power supply board have dying parts call capacitors it leaking gases,it bulges up on it tops or puff up on it tops.These capacitors are dying and be dead soon.The power supply board is the board,where the a/c power cord plug into it.U know basic electronic,have tools,know basic soldering?Seaches the power supply board and replaced these dying gases leakages capacitors. Ur tv will power up normal again and work.Or tries websites like, to buy a whole refurbish power supply board for the replacement.

Jul 06, 2010 | Daewoo DLP3212 32 in. LCD Television

2 Answers

Need Help big screen turns on thens goes off

a tv has two components, firstly a power supply produces high voltage to trigger a line transformer, in turn a transformer produces smaller voltages. firstly check if the ht is constantly been produced from a supply, if this is there than go to a line transformer, and check voltages at the output.

Sep 10, 2008 | Panasonic PT-61HX40 61" Rear Projection...

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TV turns on, then immediately off again

hi nel2874

so, you have a television that turns off immediately after you turn it on.
It sound like your power supply on the unit is out. Because I don't know the value of your unit I cannot comment on replacing the unit. But I would recommend that you use our website to find a Flat Panel TV Repairman near you. You may want to call to get an estimate on replacing the power supply before considering replacing the unit.

Jun 22, 2008 | Televison & Video

4 Answers


it could be the main fuse thats blown , before taking the tv to a TV repairman , open TV and look for a cystal tube fuse , check and replace , it could save you some $$$ if you can do it yourself , hope it helps AJ

May 09, 2008 | TruTech PLV16320 Television

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