Question about RCA TruFlat 27F520T 27" TV

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My rca tru flat is NFG

I have no picture and when the tv is plugged in it makes a high pitched squeel

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Re: my rca tru flat is NFG

The high-pitched squeal usually indicates that the horizontal drive circuit has failed as a result of a dead line-output transistor. This symptom indicates that the control circuit of the main power supply is trying to over-compensate for a greater than usual secondary current. Certainly, an inspection of the line-output transistor will show that it's most likely dead. Sometimes instead of the squeal you will hear hiccups instead. Focus your attention on the horizontal circuit.

Posted on Jan 11, 2008

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How do i connect cable to this tv

RCA Tru Flat has one of the best pictures for a digital flat screen. This exact TV is my bedroom TV in my home. As for the cable, you can run either a standard 75ohm coax cable or AV wires from the cable box to the back of the TV. Hope this helps.

Mar 09, 2011 | RCA F27678BC 27" TV

1 Answer

No pix/sound, just high pitched whistle

Ur tv the high voltage it dead,the FBT,the flyback transformer.The big black block of plastic with a red wire with a black cap that hook up to the CRT(tv tube) is dead.The FBT,flyback transformer needed it to be replaced to solved this problems.Call the shops,take estimates for the best deal to do the repair.This is one of the main part of the tv to put HV in CRT(tube tv).It pretty hard to find this FBT these day,because of the discontinue of making of Amalog tvs.

Jun 06, 2010 | RCA 35V432T 35" TV

1 Answer

When my rca 36F530 tv is plugged in it makes a high pitched buzzing noise picture does not come on

There is a short circuit in the high voltage circuit. the transformer who helps to create the high voltage or his power transistor is damage. replacement needed. the repair is not expensive, because the parts are average repair. Ask for an estimate.

May 01, 2009 | RCA 36F530T 36" TV

2 Answers


A shorted horizontal output transistor or shorted flyback. If the flyback is shorted replace also its HOT.

Apr 05, 2009 | RCA F36650 36" TV

1 Answer

RCA Model f27650 High pitch squeal

the high pitch squeal indicates shorted component/s. the transformer goes hot co'z its being overloaded by the shorted component, it too could be the one creating the squeal!!

if you have experience with electronic troubleshooting, try to test some of the components particularly on the secondary part of the transformer.
Be careful and make sure the TV set is unplugged.
test for shorted diodes and transistors, if you're in doubt of your readings try to desoldering one leg of the diode then proceed with the testing/measuring. replace any of the bad components you find exactly with same part number or replacements with the same rating.

spend more time on it resoldering some other cold soldered components.

Oct 29, 2008 | RCA F32650 32" TV

1 Answer

TV will not come on

How old is this TV?
Sounds like it has high voltage failure.
(If you hold your hand on the screen when you try and turn it on, do you feel the static? )
Unless the set is over 10 years old, I would overhaul the high voltage circuit. Should cost under $200 at a shop.

Jan 03, 2008 | RCA 32F531T 32" TV

1 Answer

RCA 36" TV - High Pitch Sound - No Picture or Sound

check for high voltage s3ection of your TV. A Flyback transformer is defective especially in the high voltage cale of your flyback....

Oct 19, 2007 | RCA 35V432T 35" TV

2 Answers

RCA 27r410t 27" won't turn on,just makes high pitch noise

that high pitch is comming from the flyback replace the flyback and the HOT.and you will restore back the life of your tv.good luck.

Jun 04, 2007 | RCA 27R410T 27" TV

2 Answers

RCA F32650 won't power up/ high pitched squeel

HARRomeo, the horizontal output transistor will usually make the set have a high pitched sound, as that is the power supply being loaded down, if you habe any solid state repair experience, thats where you should start. As you should take out the transistor and measure it with an ohm meter and see if it is shorted. There are several reasons the transistor will short. Most of the time , it is the high voltage transformer also know as the flyback transformer. Also a drive problem could cause this to shprt also. In some cases the power supply itself could have a bad regulator, or a bad capacitor in the circcuit. Bottom line if you have the experience, you will need to get a schematic, and trouble shoot the sweep circuits first. if you do not have any solid state repair experienc3, Please play it safe and seek out the help of a trained repair person. Good Luck Please dont forget to rate this thread.

Dec 05, 2006 | RCA F32650 32" TV

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