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HORIZONTAL OUTPUT OVERHEATING, HIGH PITCH SCREEL. BLOWING THE H.O.T.

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  • Billdepoo Aug 26, 2008

    Samsung Model HLN506W serial # 37193CEX200180M overheats and shuts off, I cleaned inside, it seemed to help somee

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Whats the model number of your set and I will assist you with the problem, please respond to this same post with your model number.

Posted on Aug 14, 2008

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No sound no picture high pitch sound


LOT [Line Output Transformer] fault. Check the horizontal scan output transistor too. If it is damaged, this kind of fault can occur. Anyway, the fault is related to its horizontal scan output section circuit. Check it. To get more details, http://electronicshelponline.blogspot.com/

Nov 28, 2013 | Panasonic CT-36D31 36" TV

1 Answer

5 year old goodmans tv suddenly went off, then intermittent high pitched squealing noises


Check the horizontal output section circuit. It sounds that the LOT {Line Output Transformer} has damaged.

May 11, 2012 | Televison & Video

1 Answer

D52W20 sooner or later baby I WILL watch a ball game


TL010 is more likely. Its a 2SC5588 Transistor Horizontal Output.

Nov 26, 2009 | RCA D52W20 52" Rear Projection HDTV-Ready...

1 Answer

31gt660 TV will not turn on. Makes high pitched sound.


This set has a shorted horizontal output transistor and possibly a bad high voltage transformer. If you repair the set, also solder the horizontal drive for the transistor listed above. Try www.encompassparts.com for parts. the h-ouput transistor is p/n: 223942 and the transformer is 223952 .Thanks and good luck.

Nov 07, 2009 | GE 31GT660 TV

2 Answers

AKAI PT5250A


you need a flyback.

Aug 15, 2008 | Akai PT5250A Television

2 Answers

CTR Television will not power up


What has happened is that the horizontal output transistor has shorted. The squeal you hear is the power supply running under a heavy load. The picture narrowing or being distorted indicate that the horizontal output was not operating clean. Something in the output section was not as it should be. Possible short in the output transformer/tripler unit or something loading down the secondary voltages generated by the horizontal output. You will need a tech to figure this out....If you are not a tech, then this ones a goner as far as fix it at home goes.....If you are a tech I might be able to talk you through the repair. Have someone remove the horizontal output transistor and I bet the squeal goes away.

Feb 10, 2008 | Televison & Video

1 Answer

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.

Jan 06, 2008 | RCA TruFlat 27F520T 27" TV

1 Answer

No Picture


Rarely picture tube also shows the same symptom. High pitch sound is due to through deflection area LOT power supply is loaded. Compulsary horizontal output transister short. From your statement i think Lot puncture takes place. Change LOT and horizontal output transister and check tv is now working.

Aug 23, 2007 | Zenith A32B86R 32" TV

3 Answers

High Pitched Noise


most high pitch noise comes from the anode conection on the picture tube thats connected to the flyback anode cap thats mean there is a high voltage leak,to stop the noise you can discharge the high voltage take off the cap and clean with alcohol.if the noise continue.you will have to put some red or clear silicone both the cap and tube stick together leave to dry for about 2 to 4 hrs.this will eliminate the leaking.good luck.

Jun 11, 2007 | Toshiba 27A41 27" TV

1 Answer

High-pitched noise when I turn on the tv


No I think your problem is the horizontal output transistor blew out an that was a result of the flyback transformer going out or blowing up.. Good Luck TO you.

Mar 25, 2007 | Samsung CXM2785TP 27 in. TV/VCR/DVD Combo

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