Question about Sharp LC 70LE640U AQUOS 70 1080p LED LCD TV

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LED TV has a bad column of pixels alway stuck on red. what would i have to replace to fix this? sharp aquos LC-70LE640U

Posted by Anonymous on

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5 Related Answers

Anonymous

  • 182 Answers

SOURCE: Sharp Aquos LC-32D43U

on the rermote control look for the button with a tv screen outline, two lines going down with arrows pointing to the edges they are closest too. when youve pressed that a menu pops up and select full mode. hope this helps

Posted on Jan 26, 2008

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ginko

Ginko

  • 19396 Answers

SOURCE: LC-37AF3X Sharp Aquos KCD TV

If the TV goes in standby, then it is in protection mode.

Ensure also that the fault is not coming from a faulty receiver box sending
bad signal, check if you get same problem on DVD with no receiver box
connected.

Try first leaving the TV power cord unplugged for some times, let say one hour or so.

The flashing light indicates a diagnostic state called protection.
When the TV goes on protection there are only two possible causes.

1The internal circuits are jammed because of electrostatic charges accumulating on capacitors, or because of a wrong voltage read by the main chip on your monitor controller board. this started the protection circuit.

2 The protection circuit detected a wrong voltage or abroken contact, identified an internal fault and kicked in , starting the flashing light.

If you are in situation one, then the TV will reset just unplugging power cord for one or two hours,sometimes even minutes.

If you are in situation 2 , then there is an internal fault.

If under warranty contact the manufacturer ringing the number on the user manual

If you want to repair at your own expenses, just locate any good qualified repairer.

If you want to DIY you find parts here,

All: Appliance parts, electronics parts & more from PartStore.com

Encompass Parts Distribution

LCD/Plasma Electronic Replacement Parts: Plasma & LCD TVs, Appliances |


On LCD Pay particular attention at inverter and power board, power board can be inspected looking for bulged or leaking capacitors, then tested with a multimeter. The inverter is more difficult to test , there is need to read voltages, should be done by a tech. Also the LCD controller board can cause same problem

On Plasma, test Sustain (Ysus/Zsus) / Buffer boards , cables to plasma, digital board and power board.

On Rear Projection : check lamp, lamp ballast, power board, and convergence.

On CRT TVs, check ballast , flyback transformer, CRT, Tuner, Convergence.

Posted on May 05, 2009

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rulds2008

Grand Canyon Tech

  • 3866 Answers

SOURCE: Two red vertical lines down 32" Sharp Aquos LC-32P50E LCD TV

There are solutions for stuck "and not dead pixels" Here are a couple idea's to try and please do not rate me bad if don't work!! That would not be nice as i do not get compensated showing your solutions I get them by your "good ratings" Hence do not use "Thanks for Trying" rather helpful or fixya will do now here are the websites:
http://www.wikihow.com/Fix-a-Stuck-Pixel-on-an-LCD-Monitor

http://www.jscreenfix.com/basic.php

If you TV can hook up to a computer witch it can through servral means then you can use this information. But However do not rate me Thanks for trying if the darn thing just dont unstick the pixels... Thank You for using Fixya.com
"were we can save you hundreds of dollars on repairs" It has been my pleasure assisting you today. Rulds2008- Expert Top 10 Fixya.com


Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/edwy_1a56970cf1ea4620

Posted on May 15, 2009

gopakumarg43

The Knight

  • 76823 Answers

SOURCE: How do you fix the led strip in a Sharp Aquos smart TV model LC-60LE810UN?

If you wish to get some details; visit the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/

Posted on Jul 09, 2015

gopakumarg43

The Knight

  • 76823 Answers

SOURCE: How to reset my sharp aquos led tv LC-24LE155M

There are two methods to reset TVs. The first is simple to do; a Hard Reset. The other is somewhat skilled; is a Factory Reset (System Reset). To make it a hard reset, just unplug the TV from AC mains wall socket, and re-plug it back after 15 minutes or so. If you do this by overnight is better. This procedure will make it a hard reset. If you want to make it a system reset [Factory Reset]; you have to enter its service mode option, and select the factory reset option. If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/
Service mode entry, adjust and exit procedure to many popular brand TVs are given. Never forget to exit the service mode, after all adjustments have been done.

Posted on Apr 26, 2016

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My Sharp aquos won't resond to remote

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Help, my Sharp LC-70LE640U turned of by itself after only a week of use.

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Is it true that when one pixel goes out, others are soon to follow?

No, that's not true at all. Each pixel is its only little device - one pixel does not effect another. The pixels work together to make a picture, but are all controlled separately. If your pixel is "stuck" and not dead, then you may be able to fix it! A stuck pixel is red, blue, green or white, while a dead pixel will show up as black. Sometimes a stuck pixel can be fixed by covering a pencil eraser with a cloth and pushing down on the pixel gently while the TV is on. So, in summary - no, one bad pixel doesn't mean any other pixels are bad. Hope that helps, Alex
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There are solutions for stuck "and not dead pixels" Here are a couple idea's to try and please do not rate me bad if don't work!! That would not be nice as i do not get compensated showing your solutions I get them by your "good ratings" Hence do not use "Thanks for Trying" rather helpful or fixya will do now here are the websites:
http://www.wikihow.com/Fix-a-Stuck-Pixel-on-an-LCD-Monitor

http://www.jscreenfix.com/basic.php

If you TV can hook up to a computer witch it can through servral means then you can use this information. But However do not rate me Thanks for trying if the darn thing just dont unstick the pixels... Thank You for using Fixya.com
"were we can save you hundreds of dollars on repairs" It has been my pleasure assisting you today. Rulds2008- Expert Top 10 Fixya.com


Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/edwy_1a56970cf1ea4620

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