Question about RCA TruFlat 27F520T 27" TV

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My tv will not stay on. I turn it on and it shuts off over and over a aging

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  • Anonymous Oct 01, 2008

    i have a rca tv mode BD20TF10 turflat and it will not problem it say on the screen unusable signl and the tv this the cable to it

  • upset74 Oct 02, 2008

    I have the same problem. I now keep it unpluged, its like it has a mind of it's own.


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Re solder your tv coz 50% problem of is lose connection

Posted on Oct 02, 2008

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1 Answer

TV will not stay on.

It sounds like the on-off switch that my son destroyed at age 3 by constant on off. It was a Trinitron. It was still running at least 13 years later after I replaced the switch. But it also sounds like a voltage leak due to a high moisture environment. The high voltage leak pulls a higher load and causes a protection device to open the circuit etc until everything has dried out. If I had to guess, it is a flyback transformer causing the problem.

Mar 18, 2015 | Sony FD Trinitron WEGA KV-24FS120 24" TV

1 Answer

Stays on for a few minutes then shuts off

Depending on age, may have capacitor problem in power supply. Simple cure and worth the fix....

Feb 06, 2012 | RCA TruFlat 27F520T 27" TV

1 Answer

TV shuts off long periods and then suddenly turns back on.

maybe there are some loose connection only in the power supply

Jan 08, 2010 | Panasonic Televison & Video

1 Answer

Tv cuts back off when turned on it trys to stay on but keep cutting back off (philips mod#60p8341a)

Any malfunction associated with an automatic shut down usually indicates a circuit problem or defective component. Unfortunately, the days of taking off the back cover of your TV and replacing a defective tube or fuse are long gone. Proper servicing will require troubleshooting procedures that can only be performed by a qualified electronic repair facility or professional television repair person. Ask for an estimate and a realistic appraisal of whether the set can be adequately fixed. Depending on the age and condition of your TV it may not be cost effective to repair.

Sep 10, 2009 | Televison & Video

1 Answer

My grand daughter owns a portable tv doesn't stay on

Hello fredpagan38,

This is an indication of a possible High Voltage problem, your set has what is called a shutdown circuit which detects excessive current which may cause X-Radiation to occur. The problems that may cause this are a short circuited Integrated High Voltage Transformer, a shorted circuited or open protection capacitor, or a defective Horizontal Output Transistor. To be sure you can buy the schematic and with a multimeter you can examine the voltages (power on) and resistances (power off and unplugged) of the components just mentioned. If you do not have a background in electronics, I would suggest that you have a TV repair technician look at the set and give you an estimate on it repair.

I hope this helps,

Thank you,


Feb 28, 2009 | Spectra KT2113 TV

1 Answer

Philips/Magnavox TV, model MS3250C321 shuts off randomly.

TV shutting off automatically means its a problem with the Lamp. Contact Pioneer or any local tech shop or Best buy and get the same replaced.
Turning off after specific time : Go to the timer option and disable the Automatically Switch off option. This will resolve the issue. Please let me know if it worked. If you need the user manual or instruction manula please click on the link below Hope this will be of help to you.


Oct 17, 2008 | Televison & Video

3 Answers

Sylvania 6419TC

My Sylvania T.V. turns on and then it turns off by itself. It only stays on for onr minute.

Aug 10, 2008 | Sylvania 6419TC 19" TV

1 Answer

Tv will not stay on

A common cause is a short occurred in the electron gun of the CRT. This usually causes collateral damage to support components in the CRT drive circuits.

The set will require proper shop service to determine the exact failure. I personaly would not invest any money in a set of this age. I would consider replacing it with a new LCD type.

Jerry G.

Apr 26, 2008 | Toshiba 36A42 36" TV

2 Answers

Screen shuts off

my screen will turn on right after unit is plugged in and stay on for a short period of time, then it shuts off and the red light near the power button blinks and teh tv will not turn back on. there might be problem of loose contact in power supply Thanks

Sep 11, 2007 | Toshiba 32AFX61 32" TV

1 Answer

21PT3324/71 Philips TV wont stay on

Try this: On the flyback transformer, raise the SCREEN voltage. There are 2 controld on the flyback - the top one is FOCUS and the bottom one is SCREEN. As the tube ages its emission decreases, and the computer monitors the tube's emission. When the emission gets to be too low, the computer shuts the set down. This is exactly like IK blanking in Sony sets, except Sony blanks the video and Philips shuts the set off. To set the screen voltage properly, turn the brightness and contrast to 0, raise the screen voltage until you see the white retrace lines in the picture, and then back down on the screen voltage until just past the point where the retrace lines are gone. Reset your brightness and contrast and the set should play fine.

Aug 13, 2007 | Philips 20PT6441 20" TV

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