Daktronics TN-2011, Руководство пользователя

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TNMC Maintenance
6-2
6.2 Maintenance and Troubleshooting Overview
Standard Daktronics outdoor LED scoreboards typically are front-accessible, but
some models may be ordered with rear service access. For that reason, Daktronics
team name message centers have been designed so that they may be accessed from
both the front
and rear for easy maintenance and repair of internal components.
This section provides the following TNMC information:
Signal Routing Summary: provides a basic explanation of signal travel
through the TNMC display.
Power Routing Summary: provides a basic explanation of power travel
through the display.
Service and Diagnostics: provides instructions for removing various
display components and explains the functions of circuit board connectors
as well as the meanings of diagnostic LEDs.
Maintenance: lists a number of steps to take to keep the team name
message centers in safe, working order.
Troubleshooting: lists possible display malfunctions and suggests a
number of causes and corrections for each malfunction.
Replacement Parts List: includes the part description and number of
display components that may have to be replaced during the life of this
display.
6.3 Signal Summary
Reference Drawings:
Schematic, Red TNMC, Gen IV .................................. Drawing A-252681
Schematic; Amber TNMC, Gen IV .............................. Drawing A-252645
Component Locations; 832/848
Red/Amb LED TNMC, G4..................................... Drawing A-257029
Refer to your schematic, A-252681 or A-252645 , for complete information on
TNMC signal routing. Drawing A-257029 indicates the locations of the internal
electronic components. From signal input from the All Sport controller, routing can
be summarized as follows:
•
Data from the display controller travels via cable harness into the
scoreboard.
•
The signal then travels through the driver/power enclosure to the J1
connector on the current loop interface card.