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Main power supply regulator board (SMPS board) fault. Check and replace it. If you wish to get more details visit the site linked here. http://electronicshelponline.blogspot.com/
Search the site by type in the brand name of your device in the search box at the top of the home page, to get gathered all the related posts.
The main power supply regulator section circuit fault. 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.
Search the site by type in the "brand name" to your device; in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.
If this is a combo unit the first thing you have to do is remove that dvd from inside the player. Open up the unit and do the deed. THEN see what happens. Often when the player gets jammed or whatever, it will render the rest of the set useless until the hassle is removed. In this case get that disk outta there.
If still nothing disconnect the power line that feeds the dvd to see if that has any effect on overall tv operation.
Check and replace damaged component/s at it main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" or "Magazine" will make surf easy. Surf the site with patience. Pull up older posts. Do asearch by type in the brand name of your device at its search box. http://electronicshelponline.blogspot.com/
If you have re-installed the RAM without any luck, it looks like you have to take trip to your closest Apple Repairer. It could be any number of problems. Video card, display, logic board. Only when it has been diagnosed will it be known. If the computer is less than 10 days old you can ask for a new one. Yours would be classed as DOA. If not, standard warranty it 12 months from the Invoice date.
These units have had a failure in either logic board or the main board. The only way to repair these units is to get replacement boards and see if this repairs the problem. You can try to source these parts at e-bay. Use the search engine, plug in the make of you television model number, and part number of the board you think you need for the repair.The search engine will bring up all available parts for you.You can also try this website for parts. http://www.discount-merchant.com/SearchResults.asp?Cat=&Search=PCB&RefineBy_Manufacturer=MINTEK I hope this information is of some help to you with your problem.
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