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Faulty board 687cqze009e on an lg 42v5, emits loud buzzing when turned on, screen does not display anything

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Hi under heat skin short circuit it 's the same probleme in all 42v5

Posted on Sep 10, 2008

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Zenith z60pv220 is buzzing dark picture and the middle of the screen is black.


Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electronicshelponline.blogspot.com/

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Samsung HLP5063WX/XAA- 46 in HDTV DLP


that's a failure about to happen in your video control circuit board..you feeling like you want to dig into this yourself, or does this have a warranty

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1 Answer

My tv emits s loud buzzing sound after it has been on a while. I turn it off and let it cool off, when I turn it back on it is fine, for about 20 minutes. Cooling fan?


I had the same problem and it turned out to be the color wheel. if you dont fix it soon it will break.

here is how to replace it: http://www.jangro.com/electronics/samsung-dlp-replace-color-wheel/#idc-ctools

i bought mine from amazon also for around $80-$90

part #bp96-00250a

Feb 20, 2011 | Samsung HLN567W 56" Rear Projection HDTV

1 Answer

Loud Buzz


loud buzz is the color engine, turning the color wheel. Find instructions on how to take it out and clean it and that should fix that problem.

Jun 28, 2009 | Sharp 56DR650 56" Rear Projection HDTV

1 Answer

Problem with Toshiba DLP Projection TV Model #52HM84


It is possible the lamps may be defective or that they may be the wrong replacement for this model, as it may have a different wattage setup with the ballast. If you want to try to order the TB25 lamp from a different vendor, you can order the original Toshiba replacement lamp for this model (52HM84) from a major Toshiba parts distributor at the link below:

Toshiba 52HM84 Replacement Part TB25 Lamp / Bulb

Apr 10, 2009 | Toshiba TheaterWide 52HM84 52" Rear...

1 Answer

My panasonic TH-42PZ82B has purple patches in its backgrounds and adjusting the settings does not help. Also it buzzes loudly.


It's faulty then, my first one buzzed loudly and the supplier would not accept it as a fault. I returned it under the 7 day cooling off period on distance selling regulations.

Aug 06, 2008 | Panasonic Projection Televisions

1 Answer

Hitachi c2114t loud buzz on bright screen


sounds like you have a gun or picture tube shorting. check the bottom of the tubes when you turn it on and see it one of them is lit up more then the other two if you find that then unplug the circut board thats pluged into the tube and turn on the tv again and see if you problem goes away minus that color.

Feb 23, 2008 | Projection Televisions

1 Answer

Plasma TV buzzing


If the adjustments on the power board are correct and if you are not at high altitude, the plasma display panel is defective. If the set is off warranty, it is not cost effective to replace the display panel. If it is off warranty, you should give the manufacturers Customer Relations a call. The phone number is usually right on the back of the tv. The manufacturer of the tv might make a warranty concession if they are concerned about their brand reputation. Some manufacturers find it less expensive to just switch brand names rather than make good on defective products. If all else fails, you might get some money back by selling the circuit boards on eBay.

Jan 20, 2008 | Projection Televisions

1 Answer

Audio fuzzy or cuts out


Could have a loose connection in the audio section or a problem with the output IC . Also does this happen on the RF input and your A/V inputs or just one of these. If its the A/V inputs only your having this problem check your cables .

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