Daktronics DF-4000 - Manual (Page 19)

Maintenance and 4-1
Troubleshooting
Section 4: Display Maintenance
and Troubleshooting
IMPORTANT NOTES:
1. Disconnect power before doing any repair or maintenance
work on the display!
2. Allow only qualified service personnel access to internal
display electronics.
3. Disconnect power when not using the display.
4.1 Cabinet Specifications
Cabinets for the Daktronics outdoor LED digit displays are constructed of heavy-
gauge aluminum. Exact dimensions and weights for each model are listed in the
chart in Section 2. Hinged panels for servicing digits and indicators and for
component access are detailed in each model's mechanical specifications drawing.
4.2 Component Location and Access
For the front-access modules in this series, all internal electronic components and
digits can be reached by opening the hinged access door on the front of the display.
The door swings left when the two latches on the front edge are opened, as shown in
Figure 5. For front and opened views of the displays, refer to your model's Shop
drawings, listed in Sections 2.1.
Figure 5: DF-4000, Front view with face panels open