National Geographic NG751 Series, Instruction Manual

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- Press push button B. The
24 H or 12 H indicator starts
blinking.
- Press push button A to
choose between 24 H and
12 H format.
- Press push button B. The
chime indicator starts
blinking.
- Press push button A to set
the chime on or off. When
the chime icon is displayed,
the chime function is on.
- Press push button B to
restart the time-setting
process.
- Press push button C to go
back to the default screen.
D
B
C
A
8