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Tv with humming sound but no picture.how to resolve

When switching the tv,only a noise something like tuning a radio comes out and no picture.what part should i replace?

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This Means Your Picture Tube Has Went Out Therefore You Need A New Picture Tube

Posted on May 29, 2009

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Have a humming noise in both of the speakers


Something's crossed, keep power lines and sound lines seporated double check wires in and out u could have bad sound wires and if so of home just buy new for a car get the RCA lines with a built in ground.

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I have a 50PL9220D DLP 50". Original problem was picture turned blue and had humming noise. Replaced lamp. Now have humming noise and picyure will come up fine for 5 sec then picture goes out. I have...


Sounds like the unit is going into a thermal protection mode. Probably something wrong with a transformer.

http://www.support.philips.com/support/service/service_page.jsp?userLanguage=en&userCountry=us

Jan 07, 2014 | Televison & Video

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Tv hums when hdmi is connected via dvd player


how do you have the audio hooked up for it if you are using componet cable (red,white) for sound they could be causing the humming you can either switch audio cables or use some other form of cable for sound

Jan 24, 2009 | Samsung HLN617W 61" Rear Projection HDTV

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Humming noise


Usually Humming noises come from frequency interferance.  In this case it is being caused by your input sources.  A smiply solution is to replace the cables and or seperate the source cables away from any electircal cords or sources.

Jan 07, 2009 | Harman Kardon AVR 225 Receiver

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I get white speckles on black parts of my picture


In years past the problem was created from something that has a bad motor in the area of your house or on the power lines. The 'speckles' sound like ignition noise. I have traced them to strange things as a butter control in a refrigerator. To be sure if that this is causing your problem you can take a radio and tune it around 550 mhz and you will hear a crackle or buzz. Best to use a battery operated radio and wave and walk around until you get the loudest noise and that will be the source of your 'speckles'. Could be as simple as a loose connection in your panel box.

Jan 06, 2009 | Sanyo DP42746 42 in. Plasma Television

2 Answers

Loud Humming Noise


Samsung is notorious for having the motor on the color wheel burn out. If the color on the tv starts to fade or shift tones when the rev'ing or noise is happening then you'll know its the color wheel. There are only two moving parts in this set, the color wheel and the fans. If you're smelling something, it could be either. Take the back off the set and put a piece of tape on the lamp door switch and turn the set on. Try to pinpoint the source of the noise. If its a fan, no big deal, Radio shack should have a replacement. If it sounds like its comming from under the set, dig a little deeper and try unhooking the color wheel motor, not as easy as I am making it sound but either way the fan is about $20 to fix and the color wheel is about $100. Sure beats a $400 tech bill. If you get stuck, comment back and I'll send pictures of the dismantle.

Nov 28, 2008 | Samsung HL-P5063W 50" Rear Projection HDTV

2 Answers

Vizio 42'' HDTV flatscreen


The TV usually hums when the backlight setting is too low. So turning it up should get rid of the problem. To do this please follow these instructions:

1. Turn the TV on.
2. Press the Menu button on the remote, located right below the channel changing button.
3. Press the down direction button, located at the middle of the remote. Press that button until the backlight is highlighted.
4. Press the right direction button until the backlight is at 100.
5. Press the OK button and then the Exit button until you get back to your picture.

Oct 22, 2008 | Vizio GV42L 42 in. LCD Television

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