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Inverter Problem Looking for any words of wisdom... Have a Sony LCD HDTV only 2 1/2 yrs old- picture went out, red power light flashes continually. Called a Sony Authorized Repair Ctr. Tech said Inverter for LCD has gone bad, and that part is not available separately. Replacement on part alone quoted at $975, plus labor/tax, total over $1230 to fix. Frustrating, because this is my first investment in flat screen tv, and it had normal use- table top. No extended warranty and Sony not responsive. Is this a common problem? I can buy a new set for less than the quoted repair. Suggestions?

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I agree with the ASC. Many LCDs have the inverters as an integrated part of the display panel. SOME have the separate, but not many.

Posted on Jul 03, 2008

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Lg LCD tv less than 2 yrs old has sound but no picture. What could be the problem? power supply, main board, etc??


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://electro-medical.blogspot.com/
http://electronicshelponline.blogspot.com/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.

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1 Answer

No picture on startup , continuous flashing green and orange led


Seems that way. Fact that you saw the logo on screen eliminates the inverter board.

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1 Answer

When I turn on the power the screen will light up briefly then go off, then the standby light goes on (red) and flashes in four times flash intervals


Hi,
4 blinks notifies the back light failure . could be the back light inverter board or faulty capacitor on power supply board.have added the image of back light inverter. Also added the picture of the power board. On the picture the capacitors marked with red should be replaced first. If shows the same complaint even after that then you have to change the back light inverter board.

Power supply

25849195-rpi3jfilu1hke134nfog5c4e-2-5.jpg

Back light inverter board
25849195-rpi3jfilu1hke134nfog5c4e-2-9.jpg www.electro-medical.blogspot.com

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2 Answers

My polaroid hdtv started smoking and then the picture went out. It will still turn on and has sound but no picture. There is also a flashing red light on the back. Can this be fixed and if so how?


Yes,This is not a power supply problems,u have power and sound,just no picture.Because the LCD inverter board help get picture is dead have burn parts in the board.Tries Websites Shopjimmy.com,Ebay.com to buy a LCD inverter board for the replacement.It a long board in shape.

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1 Answer

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Lamp Driver ( ballast) is defective. You can get a new ballast at the following link.
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1 Answer

Sony KF50WE610 Won't power on Red light flashes


I had this same issue with a 46" Sony. I replaced the bulb, and it is as good as new. I hope this helps.

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1 Answer

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You need to replace the bulb...very easy. You can do it yourself.

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1 Answer

Four blinking red lights.


you can have the inverter board replaced...instead of the entire panel.
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you're looking @ 200-300$ for the inverter and 5-10$ a piece for the spacers.

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you're looking @ around 500-600 $ for the part

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2 Answers

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i also have the same problem with the flashing green light for a while then a different red light starts blinking on and off around 5 times....and i replaced my burnt bulb with a new one...still no picture.

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