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My sharp led lc60le550u has no sound and no video. it does have backlights. I can do factory reset to get it to turn on. but only get blue screen, with no sound , no menu, it is 2 years old

I have a reconditioned power supply/ led board, and reconditioned main board. but do not know which one will fix problem

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  • Sharp Master
  • 6,694 Answers

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. Pull up older posts. http://electro-medical.blogspot.com/
In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.
Before going further; try a hard reset first. If it does not help you, replace the main digital board. 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; visit the site linked here.

Posted on Dec 05, 2016

Testimonial: "I'll will contact a local television repair shot to see how much it will cause to repair tv. Thanks for the suggestion and advise on what is the led tv problem. Have a good day."

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