Question about Samsung LN-T3253H 32 in. LCD Television

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How does one replace a bad capacitor for this high pitch sound? AND how do you know which capacitor??

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Hello, read my tips here.
good luck.

Posted on May 25, 2011

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High pitch screeching on my pc cannot fix thru speakers check ok


Unusual noises coming from your computer can mean anything from serious trouble to no problems at all. The uncertainty, together with the expense of computer hardware components -- not to mention the risk of losing data and being without your computer -- make it important for you to investigate any unusual sounds as soon as they come to your attention.

Normal Sounds
Not every high-pitched sound coming from your computer suggests a problem. Computers also generate a variety of sounds as part of their normal operation. In particular, anything that spins can easily make noise. This includes cooling fans and the hard drive. In the case of fans, their sound sometimes grows louder when the computer works harder because it needs to run the fans at a faster speed in order to dissipate the extra heat from the higher level of operation. You probably don't need to concern yourself with an unknown high-pitched sound unless you have used the computer for a while and the sound is new. b> Capacitors Capacitors sometimes make a high-pitched buzzing sound, either when under a high load or when defective. In the latter case, faulty construction can cause gas to build up inside the capacitor, which then vents under pressure and sometimes creates an audible noise. Defective capacitors can damage or destroy other hardware. f you suspect a bad capacitor, or don't know what else it might be, give your computer an inspection. b> Capacitors Inspection b> Your computer has capacitors all over it, including on the motherboard and on nearly everything that plugs into the motherboard, so tracking down a bad capacitor can take some time -- especially if you don't know whether a capacitor is actually causing the problem. Many capacitors look like tiny little soda cans and smaller ones look like squat cylinders. Failed capacitors usually bulge out at the top or have crusty residue around them. Be sure to check not just the motherboard but also any other hardware components with visible capacitors on them. If you find a bad capacitor, keep looking in case you find more. Afterward, don't use your computer again until you repair or replace the faulty hardware. Fans b> The bearings and motors on fans sometimes go bad. If this happens then the fan may begin to whine, whether or not it stops working. If feasible, open the side panel of your computer tower with the system running and try to pinpoint the exact source of the sound. If you can determine that the noise is coming from a fan, power down the computer and replace that fan. b> Power Supply Unit b> Power supply units sometimes make a high-pitched whining or droning sound; it can happen continuously, when you perform certain tasks on the computer or when you take the power load high enough. This can happen either because of cheap construction or because the unit is too close to maximum capacity. As you would do to check the fans, open the side panel while the computer is running and put your ear up to the PSU. If this is where the noise is coming from, replace the unit with a high-quality model and upgrade to a higher power output if you need to do so. Hope this helps.

Jan 08, 2013 | Acer Aspire Z3100 (2771498) 21.5 in. PC...

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Vizio 32 Inch, turn on completely fine for about 20-30 minutes. Then sound goes out accompanied by high pitch noise and picture has varying lines or colors through it. Won't power off, have to un


Are you a decent do it yourselfer? It sounds like it is the capacitors. What happens is they get hot and expand (the top of the Capacitor). The top will be dome shaped and it will look like the top is splitting open. You can buy (about $1.50 ea.) the capacitors at your local electronics store (not Radio Shack they usually don't have a high enough amp).
You will need to take the back off and look at all of the capacitors to see which ones are bad. Usually it will be 2 or 3 of the larger ones but there could be more. Next you will need a soldering iron with a fine tip and some wicking material. How could are you at soldering and de-soldering? before I go on.
If you let me know the model # of your set I can be a little more detailed also.

Sep 24, 2012 | Vizio L32 32 in. LCD HDTV

1 Answer

High pitched buzzing sound. This sound is real high pitched but not very loud. Some times it gets louder.


Sounds like the flyback # 270125 you can get a replacement at www.tvrepairworld.com which includes the CD with instructions and the two associated Capacitors.

Nov 07, 2009 | RCA HD52W59 HDTV Projection Television

1 Answer

There is a high pitched whine when using the satellite TV receiver as the input for sound.


I also have this problem. Reading about other sony dream systems seems to be a bad capacitor that block EMF or something. Capacitor needs to be replaced. Don't know what one though. Have to take it in.

Oct 10, 2009 | Sony DAV-C770 System

1 Answer

Tv will not power on. Hear a high pitched sound


the horizonal output transistor is shorted-replace it also resolder coil near transistor-if output shorts again flyback transformer is bad

Sep 15, 2009 | RCA F36673ET 36" TV

1 Answer

My 19 inch flat screen KOGI monitor occasionally makes a high pitch sound with a ripple effect distorting the image on the screen. What is the problem?


Hello,

I have seen this type of problem on other brands of LCD monitors. The issue is either a bad solder joint on the high voltage backlight transformers or the transformer itself going out. The high pitched sound you are hearing is a high voltage spark. If you have a soldering iron and feel like opening your monitor then you may be able to repair it. Look for 2 identicle transformers these are the backlight ones. Resolder the connections on both units. While you have it open check for bad capacitors and replace any that may have been damaged by the transformers. You can see what the capacitors look like when they go bad at our web site: www.ccl-la.com/badcaps.htm

I hope this helps, if so please rate my solution.

Buddy
Corporate Computer
www.ccl-la.com
Over 21 years of PC and printer support/repair

Jul 14, 2009 | Computers & Internet

1 Answer

High pitched sound from VGA


Hi there.
If this the on-board VGA that's making the sound then remove the power cord from the back of the tower, remove the side panel and inspect the motherboard for swollen and leaking capacitors, they will look something similar to this >>>>>>
c6f2baa.jpg
If you find one or more of these capacitors you can replace them by soldering capacitors of the same voltage and ohms but usually people end up purchasing a new motherboard.

Good luck and thanks for using FixYa!!


May 25, 2009 | Intel D102GGC2 Motherboard

1 Answer

Buzzing sound after only 2-1/2 years of service


I suspect you have a bad set of capacitors in the control module. This problem usually starts out as a high pitched noise but can lead to the TV not turning on. Please see the link below, posted by StivO. It gives step by step instructions on how to replace the capacitors. This is a very inexpensive fix.

http://www.fixya.com/support/r741402-polaroid_flm_373b_lcd_tv_black_screen

Apr 13, 2009 | Polaroid FLM-3734B 37 in. LCD HDTV

1 Answer

Sound from monitor speakers distorted and high-pitched


Sounds like an inverter problem. If the power supply is internal replace the capacitors coming out of the voltage regulators. These are usually 1000mf and/or 470mf. If that doesn't do the trick look up the numbers on the 8-pin chips that drive the secondary transformers on the inverter to see if they are getting the right voltages.
Good Luck!

Jan 16, 2008 | Computers & Internet

5 Answers

High pitch sound


hi Buddah! heres the solution for the high pitch sound on to your Panasonic TV,,just check if there are some SHORTED RECTIFIER DIODE on the power supply section,

Dec 13, 2006 | Panasonic CT-36D31 36" TV

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