28 Scoreboard Troubleshooting
5.5 Replacing Digit Segments
Larger digits (24"/30") are constructed with
individual circuit board segments. As with smaller
digits, the digit segment circuit boards are
mounted to the back of the digit panel (Figure 20).
It may be possible to make repairs by removing
just the defective segment. Do not attempt to
remove individual LEDs.
To replace a digit segment:
1. Open the digit panel as described in
Section 5.3.
2. Disconnect the 2- or 4-pin power/signal
connectors from the back of the digit
segment by squeezing together the locking
tabs and pulling the connector free.
3. The digit segments are secured to the
inside of the panel with fixed machine
screws, spacers, and push nuts. The push
nuts can be removed in several ways, but
a
9
/
32
" nut driver is recommended.
Remove the nuts and lift the segment off
the standoff studs.
4. Position a new segment over the screws
and tighten the nuts.
5. Reconnect the power/signal connector.
Note: This is a keyed connector and it will
attach in one way only. Do not attempt to
force the connection.
6. Close and secure the digit panel, then
power up and test the scoreboard to see if
changing the digit segment has resolved
the problem.
Some white LED digit segments will be
connected to a breakout board (Figure 21).
If all the segments of an entire digit do not
work, it may be necessary to replace the
breakout board instead. Breakout boards are
replaced in the same manner as a digit segment.
5.6 Replacing Colons, Decimals & Indicators
Colons, decimals, and other indicators are replaced in the same manner as a digit segment.
Figure 20: Digit Segments & Panel
Figure 21: Digit Segments w/ Breakout Board
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