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SHARP 60" LC-60LE630U powers on for one second picture freezes then it shuts off. Is this a power supply issue

When i plug it in the v lights up and the tv turns on automatically and then pictures freezes and dims to black and the tv restarts

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Fault with its main 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. Surf the site with patience. 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.

Posted on Dec 07, 2014

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Posted on Jan 02, 2017

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My sharp aquos LC-60E79U has no picture. Perhaps I have a backlight 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. 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

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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.

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1 Answer

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You cannot tell if capacitors are bad just by looking at them. they need to have a meter called an ESR meter to test them, I can tell you with almost certainty that it is a capacitor in the power supply that has failed. The whole board is Sharp 9JY0950CTN02000 Power Supply Board (09-50CTN020-00) LC-50LE440U LC-50LE442U

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1 Answer

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This is the board that has the bad part. http://www.shopjimmy.com/sharp-runtka932wjqz-power-supply-led-board.htm

Compare yours with the picture to see if there is anything visually wrong.

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1 Answer

How do I replace a broken circuit board on a Sharp LC-60E78UN TV?


You can either remove the power supply and check and replace caps and most likely the transformer (pop sound). Or a replacement can be found on eBay, amazon, etc... One model TV can have numerous diff power supply models from revisions and improvements. If you replace the board make sure you look match serial numbers on board to the new board. The back of the TV will come off very easy. Lay TV face down on a flat surface(making sure nothing is touching the LCD) remove screws. (Make sure cable coax slides free, some have a retainer but to remove) once the back is off the layout should be so simple, you should have no problem identifying parts.

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1 Answer

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Sounds like bad capacitors on the power supply board which is a very common issue for all flat panels. You can get repair kits and also replaceent power supply boards from www.tvrepairworld.com

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2 Answers

Sharp lc-26d40u No picture


I have a Sharp Aquos LC-40E77UN with the same issue, and have tracked down a single burned capacitor at C7816 on the power supply board, and am looking for info on the capacitor in order to replace it. (Power supply: RDENCA354WJQZ / Delta DPS 208BPA). - Any help with a schematic would be appreciated!)
Since you say the picture went out, it is possible that you might have the same problem, Bad/failed/leaking capacitors are, unfortunately, quite common in electronics. There are volumes of info available on the subject.
Replacement power boards can also be purchased. One for my TV runs about $60 to $120 depending on used or new. Since I was able to see a good picture on mine for a few seconds, despite the burnt out capacitor, I'm opting to try and find/replace the cap myself (using the proper safety procedures), or at worst, have a repair done to the power supply.
Backlights should typically last around 60,000 hours.

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