Daktronics BA-515 - Manual (Page 39)

Section 9: Team Name Message Centers
Maintenance and Troubleshooting
IMPORTANT NOTES:
1. Turn power off before doing any repair or maintenance work on the
display!
2. Permit only qualified service personnel to access internal display
electronics.
3. Do not operate the display with the back sheets removed! The cabinet is positively
pressurized, directing adequate airflow around the lamps and out through the lenses.
Display operation without the back sheets in place and fans running could cause damage
to the display and will void the warranty. Make certain the back sheets are fastened
securely into place.
4. Dirt and contaminants may enter the display if it is operated without the fan filters
in place or with dirty fan filters. These contaminants may cause premature failure of
the electronic components. Operating the display with dirty fan filters or without fan filters
will void the warranty.
5. Daktronics product managers or engineering staff must approve any changes that
may affect the weather-tightness of the display. This is to include, but is not limited to,
border shrouding, back sheets, cooling fans, fan filter and filler panels. If ANY
modifications are made to the weather-tightness of the display, detailed drawings MUST
be submitted to our engineering staff for evaluation and approval, or the warranty will be
null and void.
6. Turning the power off when the display is not in use extends the life of some
components.
The team name message centers for standard (not modified for an individual customer) scoreboards
are FRONT-ACCESSIBLE for service. Custom scoreboards may be accessed from the front or rear.
This manual applies to team name message centers used in standard scoreboards.
9.1 TNMC Schematics
Reference Drawings:
Schematic, 832-12 TNMC..................................................................... Drawing A-125214
Schematic, 848-12 TNMC..................................................................... Drawing A-125216
Refer to the team name message center schematic Drawings A-125214 and A-125216 listed in
Section 5.
TNMC Maintenance 9-1
and Troubleshooting