Nikon J1 - Manual (Page 170)

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If On is selected, the message at right will
be displayed whenever the camera is
turned on.
Highlight Monitor brightness and press
2. Brightness can then be adjusted by
pressing
1 or 3; choose higher values
for increased brightness, lower values for
reduced brightness.
Select On to display a framing grid ( 0 5).
Welcome Screen
Monitor Brightness
Grid Display