Question about RCA TruFlat 27F520T 27" TV

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RCA 27F520T TV

Power goes on and off after it warms up. I have checked for cold solder joint and have not found what is causing the problem.

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Re: RCA 27F520T TV

Models: 24V511T, 24V510T, 27V512T, 27V513T, 27V520T, 27F520T, 27F50T, and 27F634T
TOPIC: Set comes on by itself
Symptom: When the set is first plugged in or after a power interruption the set comes on
Cause: Set was not taken out of factory mode, or has returned to factory mode
Cure: In the service menu go to setting FAC07, then change the value of OPTM2 to “00”
To enter the service mode simultaneously press “Volume Down” on the front panel and “Info” on
the remote control.
Use the original TV remote for the instrument.
Press “7” on the remote to enter factory menu 07. Use the channel down button to scroll down to
OPTM2, then use the volume buttons to set the value to 00. Press the “Sound” button on the
remote to exit the factory mode. DO NOT turn the set off until the screen displays “OK”.

Posted on May 26, 2009

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Re: RCA 27F520T TV

Check vertical output section getting more heat. Due to this section also cause on and off problem. You will not mentioned in sound side. During this condition you get the sound or not. Check the audio supply voltage also.

Posted on Sep 14, 2007

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1 Answer

My rca trueflat goes on and off by its self

Check its main power supply regualtor section circuit board for any loose solder terminals. Resolder suspected solder terminals by applying little more fresh solder.

May 26, 2012 | RCA TruFlat 27F520T 27" TV

3 Answers

I have no control over my TV.

This kind of symptoms appears when System Control IC have cold solder joints. Please check below picture mentioned IC101 to be resold in your TV main board.


If you have good soldering skills and familiar with TV, you can do it at your own.
Good luck.

Sep 29, 2008 | RCA TruFlat 27F520T 27" TV

1 Answer

Tv turns on and goes off right away and it goes on and off on and off

Hi Jack,

This is an indication of out-of-regulation in the power supply section. The very common caused of this fault is the leaky electrolytic capacitor in that section. It will drop the supply from normal voltage and will disable the unit. Sometimes it has a bulged/dome at the top but not all, it is better that you have a capacitor checker/tester to determine its condition. Also, bad solder joints can produce the same symptom, it is hard to spot, you should use table lamp/portable lamp for finding the cold solder. Once isolated the faulty capacitor and resoldered the bad solder joints your unit will back to normal again

If you don't have necessary tools and test instruments, and can't do the job yourself, I would advice you to look for a professional to troubleshoot the problem. Don't attempt to work in the power supply if you don't know the safety precaution of handling it, there some stored electricity enough to hurt you with a little mistake only.

Also check if your unit is under warranty /extended warranty, avail it because the manufacturer of your unit will fix it for free. Don't open the back panel, this will void the warranty.

Hope I helped you.

Have a nice day!

Thanks for using Fixya.

Feb 20, 2011 | RCA TruFlat 27F520T 27" TV

1 Answer

Why does it power off on it's own? I've checked to make sure all the timers are off.

loose connection on power supply , u would have to open tv and do solder connection on the flyback transformer , this transformer is easy to located because that part is big and black and u would see one cable goes to the picture tube that flyback has loose connection need to bo solder

Dec 07, 2010 | RCA TruFlat 27F520T 27" TV

1 Answer

My RCA console tv has white horizontal lines accross screen, picture is very light and sound is ok, very frustrating. I know its an old tv, but appreciate any response. Thanks

Cold solder joints on the flyback transformer circuit board - probably because RCA used feed-thru steel rivets on their boards. Re-solder the connections using a good solder flux for clean solder joints and this will fix prob. The joints with the dull, pitted finish are the problem joints.
S. Hampton

Jan 26, 2010 | RCA G35773SK 35" TV

1 Answer

Power light is on but have no picture or sound

My thoughts are that there may be a cracked soldering joint somewhere to which the TV shows like it''s powered on but doesn't allow for the CRT to come on.
When you power the TV on to you still hear the rush or quish noise of the high voltage from the flyback?
A/V Media Guy

Nov 23, 2009 | RCA TruFlat 27F520T 27" TV

1 Answer

I have an RCA Truflat that began turning itself off today. Sometimes it will last 20 minutes, sometimes a few seconds. I'm way can I get it repaired..any ideas as to what's going on?

possible cold solder joint(loose connection). try the old method of picking it up and slightly moving it. hit it. if it seems to affect operation, just simple soldering on power supply and deflection will fix it. 50/50 chance

Nov 14, 2009 | RCA TruFlat 27F520T 27" TV

1 Answer

The tv keeps shutting off just after minutes of turning it on. We can wait about 5-10 min before turning it on again but then it only stays on for a few minutes.

This sounds like a heat related problem, which could be a faulty chip or a cold (bad) solder joint on one of the PCBs (printed circuit boards). Due to the lethal voltages present inside a CRT type television, it is strongly advised to have this repaired by a qualified technician. however, if you or someone you know is technically inclined, you can try to fix this yourself. Cold solder joints can often be spotted by visible cracks in the solder joints. a through inspection of all the boards could easily identify the problem which can be resolved with a quick tap with a soldering iron and perhaps a little extra solder added to the joint. if that yields nothing, another method is heat/cold stressing the boards while the TV is running. With the TV on, spray small areas of the PCBs with cold spray (or a can of compressed air duster turned upside down) until the tv shuts off. then heat the last sprayed part with a hot air gun (or a hair dryer) until you can get the problem to repeat regularly. inspect the area causing the problem and you will probably find the culprit.

May 26, 2009 | RCA TruFlat 27F520T 27" TV

1 Answer

RCA TV turn on and off after warm up

very simple as it comes on after some times means all your parts are perfectly ok. it comes to stand by mode due to 1 loose contact in power supply . 2 if it is ok the problem in hori section but loose contact only as you have already said that it comes on itself. good luck

Sep 12, 2007 | RCA TruFlat 27F520T 27" TV

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