Power up problem

Fault to the main power supply regulator section. Either it will be a separate board, or the part of main 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. 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.

Hi,

Dust can be a massive cause of problems on a motherboard as it acts like a blanket causing components to overheat and sometimes conducts small amounts of electricity. Many boards on this condition are basically fried and need replacing. You could try a 24 pin power supply but i doubt that will make any difference as you have done everything to restore it.



Regards.

Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.

Yes,it is the power supply board problems.The power supply board,that board where the power a/c cord plug into it.U have all the tools,know basic eletronic and basic soldering?Yes,check the power supply board for those dying parts call capacitors.These capacitors that are dying,it alway will bulges up or puffing up on it tops.By checking the power supply boad and replaced all these dying capacitors,will solved ur tv powering up problems.Or tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.

Tv having a power supply board problems,not giving the tv the right voltages anymore.That the board,where the power a/c cord plug into it.Try website like Ebay.com to buy a refurbish power supply board for the replacement.

Hello,

Your power supply board is dead, u know basic electronics' and soldering? Most of the times, the power supply board just have dead leakages gases capacitors.These capacitors always bulges up on it top,or puff up on it top.Replaced these gases leakages capacitors will get your TV power stable,and work again.Or tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.

Hope this help in solving the problem. Take care....

go to the net by your self to find the product

Possibly a power distribution board problem.
PDB requires replacement.

I have the exact problem on the exact same model .
HELP ... I have been told it may be a problem with one
of the power supplies on board ??? is this a red herring ?

if you are not getting any lights when you plug in and turn on power switch. These would be the steps I would follow, make sure on/off switch is functioning, 15 amp fuse is good or any fuse on power supply board, make sure power is coming out of power supply board. Power supply is the board with the power cord coming up to. Hope this helps. Should have a tech familiar with this machine check.