Daktronics BA-515 - Manual (Page 33)

Section 8: Digit Maintenance
and Troubleshooting
IMPORTANT NOTES:
Digit Maintenance 8-1
1. Disconnect power before doing any repair or maintenance work on
the scoreboard!
2. Allow only qualified service personnel access to internal display
electronics.
3. Disconnect power when not using the scoreboard.
For assistance in the maintenance of the optional message center, refer to
the manual that accompanies the message center or to Section 9 in this
manual.
8.1 Component Access
Lamp Driver Access
Refer to the Component Locations drawings listed in Section 4 for the location of the lamp
drivers. To access a lamp driver:
1. Open the access panel by turning the 1 /
4
-turn screws. The door will swing open.
2. Remove the driver enclosure cover.
3. Disconnect the plugs.
4. Remove the wing nuts securing the lamp driver to the enclosure.
5. Carefully pull out the lamp driver and set it on a clean, flat surface.
Important: When the lamp drivers are replaced, plugs P25 and P26 (if present) must be
removed from the old driver and plugged into the new driver.
Digit Access
Reference Drawing:
Digit Service ................................................................................ Drawing A-27674
Use the following instructions to remove a digit from the front of the scoreboard.
Note: The digit does not need to be removed to change the lamps.
1. Remove the screws securing the screen (refer to Drawing A-27674).
2. Carefully pull the digit out part way so that the ground wire can be unscrewed and the
harness unplugged.
3. Place the digit on a clean level surface.
and Troubleshooting