Question about Hitachi 50V500 50 in. HD-Ready LCD Television

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Hitichi television will power on and than ...........

Make a buzzing noise and power down ?

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Had the same problem they say there should have been a kit to handle the noise from the wheel barring in the fan...if you complain they will get you one... i needed a new light engine...notice no fan noise.....which i thought was normal...repair man said no. was not....new light engine come with a kit that blocked that fan noise.

Posted on Aug 25, 2008

If is is the fan it is because there is another part they needed to put in to keep the noise from the wheel barings coming through...there is some kind of kit ...i know cause i needed a new light engine and notice no noise from the fan... repairman said they now come with a kit that surpresses the fan noise.

Posted on Aug 25, 2008

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The buzzing noise would normally be either a fan or color wheel that is failing.

Posted on Jul 06, 2008

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How to fix vizio tv buzzing noise and you can't listen to tv dialog?


Main power regulator board or back light inverter board can be the cause to this buzzing noise. Contact any service technician to troubleshoot. http://electronicshelponline.blogspot.com/

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Buzzing noise


It could be feedback from your speakers... Make sure your power cord is grounded and if you have a sub or surround sound don't set the ac power adapter near them.

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What is with the constant buzzing noise?!


That buzzing noise is the power supply. You probably have a bad capacitor somewhere on the power supply. You can find and replace the cap or change out the power supply. Herre is a link to one at TvPartsGuy.com http://www.tvpartsguy.com/servlet/the-1260/LG-42LB4D-POWER-SUPPLY/Detail

May 10, 2011 | LG 42LB4D 42 in. LCD HDTV

1 Answer

MY HITICHI 50V500 HAS TAKEN LONGER to come back on after turning


The high-voltage transformer (same as power supply) is faulty. It is very common in todays electronics. The old one will have to be difused of all power with difuser. Then it will need to be soldered off and new one soldered on. You can get them at tigerdirect.com, shopjimmy.com, or partstore.com and others.

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2 Answers

Loud buzzing noise on vizio tv


It sound like you may have sound processor problem which is part of the main board, I would also look at the 12vdc from power supply to make sure it is clean DC.
Parts: http://www.shopjimmy.com/catalogsearch/result/?q=l37hdtv10a

http://en.wikipedia.org/wiki/Capacitor_plague

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1 Answer

Buzzing


If it is a buzzing noise, it is the Ballast for the lamp.
If it is more of a grinding sound, it is the Color Wheel motor.
Does it go away when you turn off the tv? If so, does it stop abruptly or does the sound tend to get softer (winding down noise)
If the noise stops abruptly it is probably the Ballast.
If the noise takes several seconds and seems to get softer until it stops about 30 sec later then it is the color wheel motor.
Richard Bartlett

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1 Answer

My Hitichi tv will not turn on. When the power button is pushed, the lights come on as if it was going to turn on. Then, the lights begin to flash as if the tv was turned off. After the lights stop...


This is known to happen. You could let it cool down for an hour. If it still persists, then it will need to be fixed.
You can also try unplugging the tv set for at least 4 hours to do a "hard reset"

Feb 01, 2009 | Hitachi 50V500 50 in. HD-Ready LCD...

1 Answer

Buzzing noise from rear of 26inch sony flat screen


cheak back light settings turn it all way up if down to low it will buzz in video options

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3 Answers

Buzzing


The noise is caused by dust on one of the toroidal transformers(usually a round looking thing with wire wound around it). Go to the back of your television and try and pinpoint were the sound is coming from. Turn your television off and blow it out with compressed air if it is close to air vents in the television. If you cant see it you might have to open your television back panel.

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