Troubleshooting; Setting The Time; Remote Switches; Adjusting The Accuracy - Dakota Digital 3 Series Installation And Operation Manual

Setting the time

Through lens:

Using a small, thin object such as a pen or hairpin, press "set" buttons through front lens access holes. If
the access holes are on the right side of the lens, then the top "set" button advances hours and bottom "set" button
advances minutes. If the access holes are on the bottom of the lens, then the left "set" button advances hours and
the right "set" button advances minutes.

Remote switches:

Some systems may have two push button switches for setting the time. These switches can be mounted
anywhere for easy access. They are provided on system where the holes in the lens may not be accessible. The
switches are just momentary push buttons, a press and release will either advance the hours or minutes. The
BLACK "set" button advances hours, the RED "set" button advances minutes. Each time that you make a change
to either the hours or minutes, the seconds are reset to zero.

Adjusting the accuracy:

The clock is accurate to +/-2 minutes a month as it is set, but it can be tuned for better accuracy if desired.
Press and hold both of the set buttons for several seconds. The clock will display "C 0". The "C" indicates that it is
in the calibration mode and the second number is the current calibration value. The calibration value indicates the
number of seconds to add or subtract each day. The clock can be adjusted from +7 sec/day to -7 sec/day.
Press the minute set button to change the cal value. Press the hour set button to return to normal clock
operation.
Clock technical specifications
Minimum operating voltage
Maximum operating voltage
(Operating at or near maximum rating for an extended time can damage unit)
Clock accuracy
Typical current draw (@ 13.8V) -
Standby current draw (key off) -
Problem
Clock will not light up
Clock will not turn off when
the key is off.
Clock lights up, but does
not read correctly.
Clock will not keep time.
Clock will not dim.
Clock remains dim at all
times.
- 7 volts
- 18 volts
±2 minute per month
-
0.13 A
0.002 A
Troubleshooting guide
Possible cause
Red wire does not have
power.
Orange wire does not have
power.
Black wire is not getting
a good ground.
Power is reversed.
Clock is damaged.
The red and orange wires
are reversed.
Loose connection on orange
power wire.
Poor ground connection.
Time is not set.
Clock is damaged.
Orange wire does not have
constant power.
Loose connection on orange
power wire.
Poor ground connection.
Blue wire is not connected
correctly.
Blue wire is getting power
all of the time.
Battery is very low.
Clock is damaged.
Solution
Connect to a location that has power
when the key is on.
Connect to a location that has power
all of the time.
Connect ground to a different location.
Connect black to negative ground, red and
orange to +12V power.
Return clock for repair. (see instructions)
Connect the red to switched power, the
orange to constant power.
Reconnect orange wire.
Move ground to different location
Set time. (see instructions)
Return clock for repair. (see instructions)
Connect to a location that has power when
the key is on or off.
Reconnect orange wire to constant power.
Move ground to different location
Check wiring connections.
Connect blue wire to location that only
has power when the headlights are on.
Recharge or replace vehicle battery.
Return clock for repair. (see instructions)
31 MAN 650066:E