20 Most Recent Sharp AQUOS LC-70LE734U 70" LED TV 70 inch 1080p Quattron Technology LED X-Gen LCD HDTV LC70LE734U - Page 9 Questions & Answers

Follow as per attached file. If problem not solved checked Power board some capacitor will be defective.

Follow as per attached file

Connect with VGA cable or HDMI Cable with TV & Dell

If you don't have password then follow as per attached file. Select factory reset.

Checked both Set top box volume & TV Volume.

Please follow as per attached file

Follow as per attached file.

There is panel (Display) is defective.

Checked Power supply getting to LED. Checked Power Cable ok or defective. Checked Power Board is ok or Defective.

Model No of Sharp LED required

Please follow as per attached file.

If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electro-medical.blogspot.com/ http://electronicshelponline.blogspot.com/ Line, faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent.

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. Surf the site with patience. Pull up older posts. http://electro-medical.blogspot.com/ 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.

Hi Williams, It is a panel problem. Please consult some LCD panel expert locally.

you could try typing the following user manual for make ,model and model number then click enter and check the page that appears and click on the one that is appropriate to your TV .

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. Surf the site with patience. Pull up older posts. http://electro-medical.blogspot.com/ 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.

Check and replace the damaged component/s at its main board. Contact any service technician. If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/

http://electro-medical.blogspot.com/ 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.