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Operation - Heathkit GC-1005 Assembly Manual

Electronic clock
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Page 22
OPERATION
Figure 2 (fold-out from Page 23) points out the switches and
displays of your Clock. These switches and displays are
further described below.
1
ALARM ON-OFF SWITCH — Turns the alarm on and
off. Down is on. NOTE: After the alarm sounds, if
you wish, you may turn the alarm off and
immediately return the switch to the ON position. The
alarm will then sound 24 hours later.
2.
SNOOZE ALARM SWITCH — Resets the alarm to go
off seven minutes later.
8, 9, and 10.
HOURS, MINUTES, and SECONDS
DISPLAY — Indicate the time or the time
that the alarm is set for. Indicates all 8's
when first plugged in or
when power has
been interrupted for several seconds.
TO SET THE TIME:
1.
Push the TIME HOLD switch to the right.
2.
Push the MINUTES SET-AHEAD and HOURS
SET-AHEAD switches (separately or together) as
necessary to advance the display to a desired time. Be
sure the AM-PM lamp is on or off as desired — on is
AM; off is PM.
3.
HOURS SET-AHEAD SWITCH — Advances the
HOURS DISPLAY one hour each half second.
3.
Watch another clock. When the time gets to the time
on the display, push the TIME HOLD switch to the
left.
4.
MINUTES SET-AHEAD SWITCH — Advances the
MINUTES DISPLAY one minute each half second.
TO SET THE ALARM:
3 and 4.
When used together, they advance the
MINUTES DISPLAY ten minutes each half
second.
5.
ALARM SET SWITCH — Allows you to set the alarm
using the HOURS and MINUTES SET-AHEAD
switches. Also allows the display to indicate the time
for which the alarm is set. (Time continues to be kept
even though it is not displayed when this switch is
being used.)
6.
TIME HOLD SWITCH — Allows you to set the Clock
ahead to the desired time, using the HOURS and
MINUTES SET-AHEAD switches, and then start the
clock when
the
desired time arrives.
7.
AM-PM LAMP — Indicates AM when on and PM when
off; only when setting the alarm or the time. The
Lamp is not on during normal operation.
1.
Push the ALARM-SET switch to the right. (The clock
will continue to keep time, even though the display is
stationary.)
2.
Push the MINUTES SET-AHEAD and HOURS
SET-AHEAD switches (separately or together) as
necessary to advance the display to a desired time. Be
sure the AM-PM lamp is on or off as desired — on is
AM; off is PM.
3.
Push the ALARM-SET switch to the left.
4.
Push the ALARM ON-OFF switch down to the ON
position.
FOR DAYLIGHT SAVINGS TIME:
Push the HOURS SET-AHEAD switch to the right and
advance the HOURS DISPLAY to the desired hour.
NOTE: To go back an hour, advance the
display 23
hours.

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