Hi ! I was told that my problem was with the power supply board. I have replaced it and the problem is still there. When I plug the TV in the AC outlet, a relay on the power supply board keeps clicking and two small surface mount red LEDs on the main board flash. This cycle repeats itself a few times and stop. At this point both the POWER and OPC lights on the front panel flash. I hope you can help.
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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.
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/
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.
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.
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....
Yes,it the power supply board.If u know basic electronic's,have tools and know how to do basic soldering?Take the tv aparts.The tv power supply board,that the board,where the power a/c cord plug into it.Searches the power supply board,look for those dying leakages of gases,going to be dead parts call capaitors.They alway bulges up on it tops or puffing up on it tops.Replaced these dying,going to be dead capacitorsThe tv power will be stable again and work.Or tries Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.
Try replacing the Y-sustain board. Might have to replace buffers attached to it too. Have you had it diagnosed? My picture went out and I replaced the power supply board. Worked for 2 weeks then acted up again. Got a different power supply board. Same thing 2 weeks later. Was told it now was a bad Y-sustain board. Replaced y-sustain board. Worked OK for about 2 hours then started having picture issues. Not the same issues before power supply or y-sustain problem. Was told that you might have to replace buffers attached to y-sustain when you replace y-sustain. Tired of dealing with it and only watch a couple hours a day, so I don't always have the problem unless I watch the TV for a long time. Will eventually replace buffers to see if that works. I would definitely find a place that gives free estimates or close to free to get a technician diagnosis. Then you can decide if you are able to do the work yourself.