Hitachi VT-M291A - Manual (Page 35)

SETTING THE CLOCK
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8
Enter your desired MINUTE with number buttons.
9
Select AM(1) or PM(2) with number buttons.
Press ADD/DELETE button to go back one step from current step during steps [4] to [9].
10
Press MENU or SELECT button to start the clock.
Although seconds are not displayed, they begin counting at 00 when you press them.
use this feature to synchronize the clock as accurately as possible.
This unit has a built in calendar up to the year 2009.
When unplugging the AC-cord or if there is a power failure for more than 30 seconds,
"--:--" flashes on the display.
If the display shows an abnormal reading or no reading, unplug the power cord for
more than 30 seconds. Then plug it back in.