Sony Lcd ,Led tv Service Mode, Service menu, Factory Mode
First power off your TV using the remote, then press following buttons quickly on your TV remote:
Display (or i+) + 5 + Volume Up + Power
It'll show the hidden service menu on your TV screen.
Once you enter into service menu, you can press Menu (or Options) button again on your remote to switch between various service modes such as Digital, Chassis and VPC.
To navigate between available options press 1 or 4 buttons. To change or modify their values press 3 or 6 buttons.
To save your changes, just press Mute + 0 (or Enter) buttons on the remote.
To restore settings to factory defaults, press 8 + 0 (or Enter) buttons.
PS: For some new models the above mentioned method might not work. You can try following key sequence to access service menu in those new models:
While TV is on, press Left + Right + Mute + Center button + Mute + Menu buttons.
NOTE: You can also press Display (or i+) + 5 + Volume Down + Power buttons on your remote to enter in Self Check mode. This mode shows the total usage hours of your Sony TV set.
