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High pitch noise near lamp and fans. I checked the fans and lamp, they are working fine. Could it be some other motor/component

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You need to post who made it and model number, is the set a "DLP" ? if so the noise is coming from the color wheel, the bearings are failing, video-tek

Posted on Jun 04, 2009

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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...

1 Answer

Samsung dlp tv HLP5663W makes loud noise


Yes, the set uses a color wheel and the lamp faces it.

The wheel turns at over 8,000 rpm and is well known for this problem=bearings in the tiny motor go bad.

The high pitched or fan like noise (classic description) is this part.

Sooner or later the wheel (plastic colored segments) will shatter and set will shut down lamp and not operate---set monitors the speed of the wheel so if it slows down or stops it knows.

The part is readily available on the internet (Google the model number with "color wheel").

This can be a do it yourself repair and You Tube has video instructions for replacing the wheel by model number.

There are two common pitfalls to avoid which the instructions that come with the replacement part usually do not mention---if you decide to do this repair let me know and I will explain.


5_27_2012_3_26_53_pm.jpg

SD TECH

May 26, 2012 | Televison & Video

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I have a samsung hln437n and I have a loud, high pitch buzzing noise which stays on all the time. It sounds like it is coming from the lamp. Any idea what the problem is?


Could be a slightly loose lamp connection and/or slightly loose lamp module - especially if you
have big trucks or railway tracks near your place (like me). Try powering down the TV set, use the
instructions that came with your TV to remove the lamp module, then simply re-install the lamp
module (also known as "reseating the lamp module").

If the buzzing noise persists, then
its coming from a component near the lamp (such as the power supply).
If there's a transformer in the power supply that's buzzing, then its about to fail.

Apr 17, 2011 | Samsung HLN437W 43" Rear Projection HDTV

1 Answer

My samsung HL-S5086W has a high pitched buzz that is present when muted, and continues for 2 or 3 seconds after you power off. Any ideas? I heard if it continues after power is off, then it is a fan, not...


Samsung BP96-01579A Color Wheelno the fans will not produce a high pitched noise. they will ususally produce a dull noise because they dont spin anywhere near as fast as the color wheel. the color wheel will start up before you see video and stay on for few moments after power down. if the fans were faulty the tv would give you message on screen.

Dec 22, 2010 | Samsung HL-S5086W 50" HDTV

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The noise is certainly not coming from the speaker as I have muted it. The noise more like a low frequency noise, I am not able to decide whether it is from the fan or from some other components


Hi. Check for outside sources that might be causing the static noise. The laptop might be near an Electro-magnetic emitting device like a high-powered lamp or speakers or wireless phones or even a device with a running motor.

^_^

May 05, 2010 | Dell Latitude E4300 Notebook

1 Answer

NEW HIGH SPEED EVAPORATOR FAN MOTOR TOO LOUD Repair technician told me there were problems with the original evaporator motor and replaced it with a new high speed one. Now the fridge is too loud. Before...


It's the rotors making the noise not the motors! I replaced the motor, still made noise, I took off rotor blade sanded it down around each blade, no more high pitched hum!

Jan 12, 2010 | Frigidaire FRS26H5AS Side by Side...

1 Answer

High pitch motor like noise. Not from fans.


Possibly the color wheel bearings are starting to go bad

May 28, 2009 | Toshiba 52HM95 52" HDTV Projection...

2 Answers

Kenmore 110.86874100 Motor (?) Squealing


I don't think they can be, but, also take a look at the fan bearing assembly too. You should be able to isolate if the noise is from the motor bearings or blower bearings.

Jan 26, 2009 | Dryers

1 Answer

Samsung Tantus HLN467W High pitch noise from dlp?


noisycoil- idetify the coil and remove it.coat it with laquer suitable for motor winding, reinstall after dry.

Dec 26, 2008 | Televison & Video

1 Answer

Just moved into a house that has low voltage outdoor lights. They were working a month ago, but not sure what's happening now. Checked transformer. Lights work in the "on" position, but...


Hi GlennMayer1

The high pitched noise you here is the switchmode electronic type power supply/control electronics malfunctioning. This could be caused by component failure in the power supply or a short circuit in the wiring preventing it from firing up correctly. Hard wiring a lamp directly to the power supply would allow you to check the system, but a replacement power supply is probably required.

regards
robotek

Jul 15, 2008 | Universal Remote Control Hampton Bay...

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