Daktronics DF-12xx - Manual (Page 35)

Maintenance and 4-3
Troubleshooting
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.)
4. Position a new digit over the
screws and tighten the nuts.
5. Reconnect the power/signal
connector. Note: This is a
keyed connector it will attach
in one way only. Do not
attempt to force the
connection!
6. Close and secure the digit
panel and test the display.
Replacing a Digit Segment
When a digit segment malfunctions, in most cases it is necessary to replace just that
segment board. The larger digits, 24", 36", 48" and 60” as shown in Figure 17
, are
made up of LED segments. As with smaller digits, the digit segment circuit boards
are mounted to the back of the digit panel. Do not attempt to remove individual
LEDs.
To remove a digit segment, follow these steps:
1. Open the digit panel as described
above.
2. Disconnect the 2-pin
power/signal connector from the
back of the individual segment.
Release the connector by
squeezing together the locking
tabs as you pull the connector
free.
3. The individual segments are
secured to the inside of the panel
with fixed machine screws,
spacers, and push nuts. Remove
the nuts and lift the segment off
the standoff screws.
4. Position a new segment over the
screws and tighten the nuts.
Figure 16: Digit Assembly
Figure 17: Segmented Digit Panel
(Rear View)