Daktronics BA-2000 Series, Display Manual

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TNMC Troubleshooting & Maintenance
– Model BA-2018
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Section 7: TNMC Troubleshooting & Maintenance
– Model BA-2018
IMPORTANT NOTES:
1. Always disconnect scoreboard power before doing any repair/maintenance work on the
message centers.
2. Permit only qualified service personnel to access internal display electronics.
3. Disconnect power when not using the scoreboard.
7.1 Team Name Message Center System Overview
Team name message centers (TNMCs) use amber or red LEDs to display team names (home
and guest) in place of vinyl captions (
Figure 38 ). TNMCs for BA-2018 scoreboards are
available with 8x48 pixel dimensions. Characters are shown on one line using single- or
double-stroke fonts up to 20" (508 mm) high.
Matrix Size
# of
modules
Pixel Spacing Active Display Area Weight*
8x48 6 64 mm (2.5") 20" x 120" (508 mm x 3048 mm) 100 lb (45 kg)
* TNMCs are typically installed in pairs; double this value to find the total added weight.
7.2 Initialization Information at Startup
Every time the display is powered up and there is no All Sport
®
signal present, the display
will run through an initialization process, during which it will test all LEDs and addresses.
First, the message center will display the proper address number.
If the entire TNMC display fails at startup, power may not be properly connected, or the
address setting may not be correct on the TNMC driver. Check both in the event of a failure.
Figure 38: Team Name Message Centers