Panasonic WJ-NX400K Important Information Manual page 16

Major operating controls and their functions
⑩ Recording indicator [REC]
Lights orange when recording is being performed.
⑪ LCD menu switching button [LCD SW]
Use this button to switch menus on LCD, i.e. from/to the
date/time display (default) to/from the IP address display
of the recorder.
If an error message is displayed on the LCD, the
message will be deleted if this button is pushed and it
will return to the date/time display.
⑫ Front cover
Open the front cover when adding/replacing the HDD
unit.
Keep this cover closed and locked during normal
operation.
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