Question about Samsung HLR5067WX 50" Rear Projection HDTV

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TV POWERS UP AND THEM POWERS DOWN- HUMMING NOISE NO VOLUME

MY TV JUST STARTED ACTING UP IT WILL WORK SOMETIMES AND OTHER TIMES IT FEELS THE URGE TO NOT WORK.. IT TURNS ON AND MAKES THE BEEP NOISE WHEN I TURN IT ON..  THEN IT MAKES A WEIRD NOISE AND ALL THREE LIGHT START TO FLICKER ON THE TV  THE BULB IS NOT LIGHTING UP LIKE IT USED TO.. BUT SHOULDN'T I BE ABLE TO HEAR THE TV WITH NO PICTURE??? NOT SURE WHAT TO DO ???

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Sure you can do the color wheel yourself, Its fairly easy too. Open the back and loosen the optics block tray, remove the black dvi cable and and the two ribbon cables that connect to the sliver encased dmd board and the small green circuit board in front of it. Then take off the black and white ballast cable and slide the whole tray out. The Color wheel is between the lamp and the projector housing. Pull the black casing off the top and you'll see a heat sink. Remove the gold screws on the corners and CAREFULLY pull the heatsink and the attached color wheel up and out. If the color wheel is broken, as in missing a part of the wheel or has broken glass then replace it. If it looks intact, the motor may be out. Most of these tv's use a air float bearing that is, lets say, toaster quality. Find your replacement at shopjimmy.com rivervalleyelectronics.org or on ebay. Replace, reverse, all done.

Posted on May 21, 2009

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Replace the lamp to start. If that doesn't solve it then it might be the color wheel. You can't do that yourself.

Posted on Apr 15, 2009

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1 Answer

What may cause a high pitch hum.even when muted or volume turned down?


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1 Answer

Proscan 42 lcd makes a humming noise and the color starts breaking down in the color blocks and the screen sometimes flickers


The LCD is breaking down and the voltage regulator in the power supply (hence the hum) can't provide enough gain to energize the crystal so it flickers and acts up. These often get damaged in transit. (Time for a new TV/monitor. Bear in mind that such consumer electronics only have a useful life of 6 years.) These off-brand TVs purchased from supermarkets like COSTCO and Wal-Mart are notoriously problematic. Take it back, if you can and demand your money back. Don't get another one to replace it! Depending upon where you live, most consumer electronic devices have an Implied Warranty (unwritten) of one year from the date of purchase for merchantability (meets safety standards) and free of defects. It may also have a Specific Warranty (written) which lists other conditions. Stick with reputable brands like Panasonic, LG, Samsung, Philips, Toshiba, and Sony, if want some measure of quality control and reliability. There is a reason why they cost more!

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1 Answer

Humming noise when volume over 40


This hum could be from a ground loop or a bad main board in your TV.
1. Try removing all the inputs from the back of the TV.
2. Unplug the TV for about 3 minutes and plug it back in.
3. Turn on the TV and go to HDMI1 input.
4. Turn the volume up to see if you hear the hum.
5. If you hear the hum without any inputs into the TV, then the problem is with your main board, or with the quality of power you have going to your TV (your wall outlet may have an open or bad ground). You can try plugging the TV into a different outlet across the other side of the house (to try a different circuit) to see if your power is the problem.
6. If you don’t hear a hum without any inputs into the TV, then the audio hum is caused from one or more of your inputs.
7. You will have to plug in one input at a time into the TV, and turn up the volume to see if that one input is creating the hum. If the TV hums, then you have a problem with that device and or the cable that connects it to the TV.
8. There is a chance the hum will occur when two or more devices are connected to the TV at the same time. So be careful of this issue. This issue is not the fault of the TV and is a grounding issue between the devices.
I hope this information has helped you.
Good Luck.

May 28, 2010 | LG 32LG30 32 in. LCD HDTV

1 Answer

Wanted to adjust quality of sound, such as treble


Go in ur menu pick the audio go down pick the reset the tv set back to factory setting will get the

Mar 24, 2010 | Westinghouse SK-26H520S 26 in. LCD HDTV

2 Answers

Volume making humming noise when on


there is a bad ground.
the hum you are hearing is ac getting into the audio.check all the rca plugs on the set are plugged in all the way.do not run them close to a power bar either.
sometimes a second unit with it's own volume is hooked up to the tv and then the tv volume is up too high because the other box is turned down.if there is a unit hooked up,turn it's volume up ,and the volume on the tv down,otherwise the tv will amplify the residual noise.cheers,ed

Jul 04, 2009 | Proscan 32LB30H LCD TV

3 Answers

My proscan is buzzing and pix is flickering when the power is on.


I found this solution on another review, hope it works
Model Number: Proscan 26" LCD HDTV w/ Built-in DVD Player26LB30QD "pro: good price, TV picture is clear and DVD player is compatible well.
con: sound noise
There was hum when I first turned the TV on, then I followed these instructions (found it from other review) to fix the hum issue:
1. Turn tv on
2. Input mode should be tv
3. Turn volume to zero
4. With remote enter 9 8 7 6
5. A menu will appear on left side
6. Arrow down to backlight and with right arrow key move number from 81 to 83, press menu button twice,
7. Turn up volume and listen if hum is gone."
It works,no hum."

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1 Answer

Volume noise after warm up


YES! I had this problem and there are others here under humming.

Standing in front of the TV, make your volume zero.
Punch in --very quickly-- 9876
If it worked, it will open a new menu. Go down to the Backlight and enter. Move it up to 83 from 81.
Hit menu twice.

Now try it and see if your hum is gone! [I think I was starting to go deaf trying to hear the volume over the buzz!]

I will warn you to try it a few times. At one point it shut off on me in the middle and if this happens to you, expect the volume to be BLARING when you turn it on again. :-)

Feb 21, 2009 | Proscan 32LA30Q Television

1 Answer

I'm experencings a buzzing noise coming from the speaker when I turn on the tv....How can I get rid of this noise?


Give this a shot, it should fix the hum issue:

1. Turn tv on
2. Input mode should be tv
3. Turn volume to zero
4. With remote enter 9 8 7 6
5. A menu will appear on left side
6. Arrow down to backlight and with right arrow key move number from 81 to 83, press menu button twice,
7. Turn up volume and listen if hum is gone.

Let me know if this works.

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1 Answer

Onkyo HT-SR800 buzzing noise present then vanishes


The hum a fluorescent light makes is the 50 or 60 Hz hum of the alternating current mains supply. Inside the light fitting is a choke which when less than perfect tends to hum. When the choke is loose internally or externally is when the hum becomes an annoying buzz.

When an audio system has a similar tone of buzzing or humming the source will invariably be the same AC mains but how it got in there is difficult to answer...

It could possibly be poor smoothing and regulation of the power supply or an accidental hum loop caused by careless design and/or poor grounding. It could be caused by being induced in the input by connecting leads that are too long and poorly positioned/screened or it could be caused by mismatch between different components causing a poor signal-to-noise-ratio.

I am not sure why it should come and go but the fact it does would indicate a power supply problem more than the other possible causes.

If the Onkyo system has it's own volume control and it is being used witha tv or similar, it is worth trying to imporove things by turning up the tv volume to near maximum and then controlling the volume with the system control.

May 12, 2017 | Onkyo HT-SR800 System

1 Answer

Gemsound power speaker pxa105


First,
Disconnect any input cables from the amp. Turn down the volume controls and disconnect the speakers. Power back on. If you still blow fuses with nothing hooked up, have the amp fixed.
If the fuse holds, shut down and connect the speakers, leaving the volume controls down. Power up and see if your fuse holds. If you have hum, an output transistor is most likely shorted. If you have no noise, SLOWLY turn up the volume controls and listen for the hum. If all is quiet, turn down the volume controls and connect your input cables and turn the volume back up. Noise? check your cables!
Mister Phil

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