Daktronics DF-1020 - Manual (Page 27)

Mechanical and 3-7
Electrical Installation
used, the address will typically be address “1”. This is the default address plug that is
shipped with each display. In a multiple-module display, the address plug determines
which line of information is shown on the drivers' digits. The address plug for each
line is included in the address plug kit, if applicable.
3.4 Light Sensor Installation
Reference Drawing:
Light Sensor Installation, G3........................................Drawing A-183775
Displays in the DataMaster series use a light sensor to regulate sign dimming
functions. (Dimming involves decreasing overall display intensity, both for better
display viewing and to prolong LED life. The brightness level should be highest
during the day to compete with daylight, and lower at night.) Use Drawing A-
183775 and the following instructions to install the light sensor in your DataMaster
Gasoline Price display. If the sign or sign system has more than one display, install
the light sensor in the host display only.
1. Remove the screws on the front
of the display and open the
hinged access door.
2. Locate and remove the
5 /
8
"
plastic plug from front panel of
the display, as shown in Figure
6. The location of the plug varies
by model. Refer to the
mechanical specifications
drawings for model-specific
information.
3. There are two 6-32 studs above
and below the plughole. Position
the internal light sensor assembly
on the studs, with the clear lens
toward the front of the cabinet
and the cable at the bottom.
Secure the sensor with the plastic
wing nuts provided with the
assembly kit.
4. Route the signal cable to the driver and insert the 6-postion plug into the
mating jack on the driver, TB1.
5. Close the hinged access doors and replace the screws.
Figure 6: Internal Light Sensor