Electro help: SHARP LCD TV SERVICE MODE - GENERAL PROCEDURE

While the TV is switched ON, unplug the power cord from AC wall socket.
Press and hold Both "Input & Volume (-)" buttons on the frnt panel of the TV, and re-plug back the AC power cord into wall Power socket.
If "K" is displayed on the screen when the TV power up, means the tV is in service mode.
On the front panel of the TV, press [Vol (-) & Ch (-)] and release.
The service menu will be displayed.
To call an item to adjust, use "CH + / CH -ve" button on the remote control.
To adjust the data value to selected item, use "Vol + & Vol - button on the remote control.
To "Exit" service mode, switch OFF the TV.

Electro help