53NX501E/NZ501E
English
English
Owner’s Manual
22. MONITOR OFF
Long Press Menu button on Operational Panel for 3 seconds, it will show “Monitor off……Touch the screen to 
return” and then the head unit will turn off the TFT screen. Touch any place of the screen, the TFT screen will turn 
on again.
When the Anti-theft is “On”, you need enter correct 
Anti-theft code to turn the unit on. If you enter wrong 
code three times, the unit is locked, and must be 
unlocked by the professionals.
2. If your unit is secured, hold the [
] more 
then 2 seconds, then the Anti-Theft setting mode will 
display. The numerical keypad is displayed, enter the 
right code to unlock.