Daktronics DF-1020 - Manual (Page 30)

Maintenance and
Troubleshooting
4-2
Component placement varies slightly with each DataMaster model; consult the
model-specific mechanical drawing to determine the layout for your display.
Note: Disconnect power before servicing the display! Disconnect power, too,
when the display is not in use. Prolonged power-on may shorten the life of some
electronic components.
Replacing a Digit
The digit circuit board, the platform for the LEDs, is mounted to the back of the digit
panel. Do not attempt to remove individual LEDs. In the case of a malfunctioning
board, replace the entire digit panel. Refer to Figure 8 below.
To remove a display digit, follow these steps:
1. Open the digit panel as described in the preceding section.
2. Disconnect the power/signal connector from the back of the digit. Release
the connector by squeezing together the locking tabs as you pull the
connector free.
3. The digits are secured to the inside of the panel with fixed machine screws,
spacers, and push nuts. Remove the nuts and lift the digit off the standoff
screws. (The push nuts can be removed in several ways, but Daktronics
recommends using a
9 /
32
" nut driver.)
Figure 8: Digit Assembly