TCL 55D1620 Manual page 41

8.P mode on and burning mode
Factory mode
on(flash words)
P mode on
Press Return
key on remote
control
Appear factory
menu on screen
No
Yes
Follow the alignment
process to enter the
factory menu
Choose factory hotkey
to OFF or choose
Shop/Shipping Reset
 PS: If you choose
Shop/Shipping Reset , the TV will automatically
restart. When start again, the TV turn to welcome screen.
END
Picture
changing
Burning
mode
Press Menu/ Input/
Source switch on TV
key pad
Quit burning
mode
PS:
YES
No
 Most of the time, main
board burning mode
have time records on
Panel NG,
screen.
change panel
 If the TV can not exit
burning mode, you can
check panel CLK signal if
END
the voltage is not
1.1V~1.3V, panel NG.