Section 4:
Maintenance and
Troubleshooting
Important Notes:
Disconnect power before doing any repair or maintenance work on the
display.
Allow only qualified service personnel access to internal display
electronics.
Disconnect power when not using the display.
Daktronics displays are built for long life and require little maintenance. However, at times,
displays may not work correctly. Use this section to pinpoint the problems and find solutions.
4.1 Component Location and Access
Two methods are available to access the components of these displays, depending on
the tasks that need to be accomplished. Refer to
•
Back panel removal:
The back panel may be taken off if the digits or
driver need to be removed or if the transformer must be accessed. To do
this, open the six latches by turning the latch access screws counter-
clockwise.
•
Access panel removal:
If the driver needs to be accessed but not removed,
the access panel may be opened. Remove the two screws holding it in place.
Note: Disconnect power before servicing the display.
Disconnect power, also,
when the display is not in use. Prolonged power-on may shorten the life of some
electronic components.
Figure 10: Back Access Options
Maintenance and Troubleshooting
4-1
