sony tv kv hg21m80?

Performing a Power Cycle

Step 1
Locate the power supply for the TV and unplug it from the electrical outlet.

Step 2
Press and hold the "Power" button on the TV for 60 seconds.


Step 3
Plug the power supply of the TV back into the wall and press the "Power" button to restart the TV.


Perform a Factory Reset

Step 1
Turn the television on.

Step 2
Press and hold the reset button on the remote control. If your remote control doesn't have a reset button, press and hold the up arrow.

Step 3
Press the "Power" button on the front panel of the television while holding the reset or up arrow button on the remote.

Step 4
Release the reset or up arrow button on the remote and follow the setup instructions on the screen

Try these 2 steps if that does not work your problem is inside the tv.
You can also do a hard reset and unplug over nite.

flyatyou66
July 2014