Sanyo flat screen 70 inch wont turn on sanyo flat screen Lc-60LE600U 301826561

Sounds like the main board is failing and will need to be replaced.

Sounds like corrupted firmware. A firmware update is necessary. Contact the authorized service center for Sharp.
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/

If it is less then 1 year old Sanyo may fix it free . other wise get a quote as it may cost the price of a new one.

http://www.coppelltvrepair.com/search?Q=DP50747+&As=false&Pf=&Pt=&Sid=false&btnsearch=Search

Narrow down model and look at symptoms...you may find just what you need.

this is a common problem: the power supply capacitors have failed

If the problem is same with different input devices and you have ensured there are no loose contacts in power outlet, RC jack, cable and sockets, the TV needs servicing.

Check and replace the main power regulator board.

tv turned black/white screen...how can I get it back to color? It happened when my granddaughter was playing with the tv remote. thanks

my sanyo 37 inch was workin fine put it on the wall now the blue light on the front is flashin like mad screen wont *** on got the clicky sound as if i was turnin it over by the side any ideas ??

check the safety switch under the lamp cover if the has snapped there wont be any power