Sharp tv wont turn

SOURCE: sharp aquos lc-37d43u tv

Same problem. TV worked night before and then would turn on but no picture or sound. Power and OPC lights blinking. I couldn't change the channel or get to the menu.
I disconnected the coaxial cable and the power for a few minutes and then plugged it back in (electric) but left the cable off. I got a message that it couldn;t get a signal. At that point I was able to change the channels. I plugged the cable line back in and everything worked fine... Good luck!!!

SOURCE: the power light and OPC light flash but TV won't

try making sure tht tha scart or HDMI cable is securly fitted (depending on which one u using) and this suld solve loss of picture or sound

SOURCE: Flashing Green Power Light - No Picture or Sound

try accessing tv through the remote control.

SOURCE: no picture no sound opc light and power light

This is very common in sharp tvs.U turn it on.U get power on light stable right?U hear a click,one or twice,sometime tv is good right?Sometime POWER light and OPC light flashes?Push the power button on/off couples times will work, picture will come on.If keep trying off/on couples time after POWER and OPC flashes,don't ever stop and never get backlight and picture.Ur Video backlight board is dead must replaced.

SOURCE: LC-C6554U HDTV AGUOS 2 GREEN LIGHT FLASHING, NO PICTURE NO SOUND

Did you ever find a solution to your problem? I have the same set doing the same exact thing.

Thanks