Daktronics SW-2001, Руководство пользователя

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Troubleshooting
19
Component Locations & Access
All internal electronic components and digits are reached by opening a digit/access
panel on the front of the display. Component location varies with each model, but
drivers and power and signal components are typically mounted behind the second
panel from the left in the module. Refer to the electrical specification drawings listed in
Appendix B for precise component locations.
Digit/access panels are held in place on the display face by screws. To remove a panel,
simply unfasten the screws and carefully lift it from the cabinet.
Note: If the panel is not held in place when the screws are removed, it could drop and
possibly damage LEDs or the digit harness.
When closing a digit/access panel, make sure all screws are holding it firmly in place to
prevent excessive moisture and debris from entering the display.
Replacing Digits
Digits consist of a circuit board with embedded LEDs mounted to a black polycarbonate
tray and encased in protective gel as shown in Figure 9 . One or more digits may be
secured to a single face panel. Do not attempt to remove individual LEDs; in the case of
a malfunctioning LED or digit segment, replace the entire digit.
Stud
Digit Panel Digit
Power/
Signal IN
Nut
Figure 9: Weather-Sealed Digit Panel Assembly