Ok I finally took the TV apart. Now I can't find a replacement main signal board anywhere. All websites that carry this part list this it as no longer available. Has anyone found this part recently? Where did you find it?
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Fault with the main power supply regulator board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. http://electronicshelponline.blogspot.com/ It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.
The tv turn on u get a solid power LED light indication all the times,no flashes or delaying the power LED light to come on?Any times?Yes?Than ur tv main logic Tuner signal board have intermittent short and slow dying somewhere.Impossible to tell exactly what have happening to the board.That the board where the tv incomming broadcasting signal cable wire plug into it.U have basic mechanicals take things aparts and putting it back together wright ok?Tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish tv main logic Tuner signal board for the replacement.
The tv main logic board known as a tv Tuner signal board it is the causes and the problems.The tv main logic board,the tv Tuner signal board it is shorted and not taking in and sustance power from the tv power supply board anymore that why tv Power and OPC LED lights indication are flashing together.This main logic tv Tuner signal board that the board where that take in the tv incomming broadcasting signal wire plug into it.U must replaced the main logic tv Tuner signal bard to fixed this problems.If U have some mechanicals skills like take things aparts and putting it back together again?Yes,tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish main logic tv Tuner signal board for the replacement.Tries tv unplug,replug it back about an hour later.Tv might work again for awhile though,but to fixed this problems for good the main logic tv Tuner signal board must have to be replace.
The tv problems u are decribing are 50/50 it could be the main board tv Tuner signal board is dying and shorting out or the tv LCD screen panel itself are leaking radiation and slowly shorting out.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish main board tv Tuner signal board for the replacement.50/50 could get this tv fixed by replacing this main board tv Tuner signal board.If after u replaced the board and still have the same problems,than u know for sure it is the tv LCD screen is dying and leaking radiation and slowly shorting out.Than u know for sure this tv is not worth as a whole tv anymore,now only as salvages tv for it PCB circuits boards only.U can return the main board tv Tuner signal board to the dealers.Get some money back,but must lose some money,like subtraction like from the shipping and handleling cost and the useually the 10% restocking fee.
The dam main board the tv Tuner signal board was dying and now it is dead.Tv now still have power light LED indication it is on just no picture wright?Yes.This tv the Tuner signal board is it dead.Can u do some basic mechanical work like take thing aparts and putting it back together again?Yes,tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish tv Tuner signal board for the replacement.Or the shops will cost u a little more than half of a new tv to service by them,because this tv,the main board it is dead,not serviceable only replaced that it.
When tv it does have a full picture,the tv it work ok?Yes,tv it is repairable.This tv problems are only have two possible electronic boards causes.1 the tv board that call the T-CON decoders board it is dying,this board sit in the middle of the bottom of the LCD screen panel,it control and decoding all the picture dots pixels before it gose into the LCD screen panel.2 worst cases the main board the tv Tuner signal board is it dying,this board control everythings.Like it take in the outside incomming signals sources,like the tv incomming broadcasting signal cable wire and all the external electronic unit divices plug it into the tv.80-90% this tv problems it is the causes by the tv T-CON decoders board only.Tries websites like Shopjimmy.com,Ebay.com to buy a reburbish T-CON decorders board and the tv main board Tuner signal board for the replacement.
Tries tv unplug,replug it back like about an hour later.The tv will be resetting itself back to the factory original setting.The tv now,might be working.If not,the tv still have the same problems.This tv problems i fixed it before,the tv main Tunner signal board it is the causes and problems.It is a dying output board.The tv main Tuner signal board,that the board where all the external devices and the tv incomming broscasting signal cable wire plug into it.U can do some basic mechanical works like take things aparts and putting it back togeether again?Yes.Tries websites like Shopjimmy.com,Ebay.com to buy a whole tv main Tuner signal board for the replacement.
Take the tv aparts.Take the tv manual control board aparts.Reajusting the board and screws it back in.Should solved ur problems,if not than the whole tv Tuner signal board is the causes and the problems.That the board,where the incomming broadcasting signal board plug into it,this board have intermittent problems and the causes.Try website like Ebay.com t buy a whole refurbish tv Tuner signal board for the replacement.
MAIN BOARD IS BAD...THERE ARE TWO DIFFERENT MAIN BOARDS FOR THIS TV...IF S/N STARTS WITH W2702...USE P/N 5600110351...IF S/N STARTS WITH W2751...USE P/N 5600110493...PART CAN BE ORDERED FROM ANDREWS ELECTRONICS IN CALIFORNIA..YOU MAY CONSIDER TAKING THE SET TO A LOCAL REPAIR SHOP..