8.7 Troubleshooting
This section lists potential problems with the scoreboard and indicates possible
causes and corrective actions. This list does not include every possible problem, but
does represent some of the more common situations that may occur.
Symptom/Condition Possible Cause
Scoreboard will not light
Console not connected or
poor connection
No power to control console
No power to the scoreboard
Garbled display Internal driver logic
malfunction
Control console malfunction
Digit will not light Black wire to digit broken
Poor contact at driver
connection.
Driver malfunction
Scoreboard will not light
Console not connected or
poor connection
No power to control console
No power to the scoreboard
Digit will not light Black wire to digit broken
Poor contact at driver
connection.
Driver malfunction
Segment will not light Broken LED or connection
Driver shift register failure
Broken wire between driver
and digit
Poor contact at driver
connector
Segment stays lit Driver shift register failure
Short circuit on digit
Date appears in the wrong place
on the scoreboard
Incorrect address settings on
drivers (consult tables and
set correct addresses)
Scoreboard Maintenance 8-7
and Troubleshooting
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