sony lcd tv login factory service mode

These are step by step to enter or login sony lcd tv factory service mode :
Using the remote control: 
1). Turn the TV off.
 

2).Press {DISPLAY} {5} {VOL+} {POWER ON} buttons.
   or
   Press {DISPLAY} {5} {POWER ON} buttons. 

3).The Service Menu will be displayed.
4).Use numbers {1} and {4} to select the item to adjust.
5).Use numbers {3} and {6} to adjust the value of the data.
6).Press {MUTE} then {ENTER} to save new settings.
7).The words "WRITE" in red will show up in the upper right corner if saved.
8).Turn the TV off to exit the service menu.