CONTROL BOX
Once the display panel is in place, mount the control box within the connecting cable's
distance (approximately 3 feet) and secure to the underside of the dashboard. This case does
not have to be mounted to metal, but by doing so you will provide a better ground to the control
box. When connecting the display cable to the unit, be very sure to pay attention to the "up"
side of the connector. Align the connector in the socket and press firmly into the control box.
The connector locks will secure the connector.
Wiring the control box into the vehicle.
+12V
Connect the +12V terminal to the RED wire from the display panel.
Never connect this to a battery charger alone. It needs to have a 12 volt battery
connected to it. Battery chargers have an unregulated voltage output that will cause the system
to not operate properly.
GROUND
This is the main ground for the display system. Connect the BLACK wire from the
display panel to this terminal.
Proper vehicle grounding is extremely important for the gauges to read and operate
correctly. The engine block should have heavy ground cables to the battery, frame, and body.
Failure to properly ground the engine block or the control box can cause incorrect or erratic
operation.
DIMMING
The gauges are designed to dim down when the headlights are turned on. This is to
reduce the display intensity at night so the gauges do not cause eye strain or reduced night
vision.
In order for the automatic dimming feature fo the display system to operate properly, the
“DIM” terminal must be connected to the park light circuit. The WHITE wire supplied with the
system can be used to connect the DIM terminal to the park light circuit on your headlight
switch. This will be a brown wire on position “A” of the headlight switch connector. The display
system will dim whenever the “DIM” terminal has 12 volts applied to it. The night brightness
level is adjustable two different ways.
The default method is to have the system to dim to a preset level when the lights are
turned on. This brightness is adjusted by turning the shaft protruding from right side of the
control box, next to the display system connector. Turning the shaft clockwise will decrease the
brightness. The shaft will rotate ¾ turn from stop to stop. Do not attempt turn it past the stops.
See DIM ADJ for a description of the second method.
DIM ADJ
The second method allows you to have a dash mounted control to vary the brightness
while the headlights are on. This requires a 10k potentiometer or Dakota Digital’s DIM-1 kit. A
stock headlight rheostat will not work. The dash mount dimmer has two wires, one connects to
the DIM ADJ terminal and the other connects to ground. To allow the dash mount dimmer to
have full control, the shaft on the side of the control box must be turned fully counter-clockwise.
The dash mount dimmer will only vary the display brightness when the DIMMING terminal has
power.
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