Daktronics BA-1018-11, Installation, Maintenance, And Specifications Manual

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9.3 Signal Summary
Reference Drawing:
Control Layout; Outdoor LED TNMC ...................................................... Drawing B-107507
Refer to drawing B-107507 for complete information on TNMC signal routing. From signal input from
the All Sport controller, routing can be summarized as follows:
1. Data from the display controller travels via cable harness into the display.
2. The signal then travels through the power and signal entrance enclosure (power and signal
termination panel) to the J1 connector on the current loop interface card.
3. Data exits at J3 and is relayed to the J1 connector on the multipurpose display controller
(MDC). The signal then exits the MDC and enters the first module of the TNMC.
4. Signal is relayed from module to module until it reaches the last module on the message center.
Refer to
Drawing B-107507 .
9.4 Power Summary
Reference Drawing:
Control Layout; Outdoor LED TNMC ...................................................... Drawing B-107507
Refer to
Drawing B-107507 . Power routing for the display can be summarized as follows:
1. Incoming power terminates at the power and signal entrance enclosure. It is then routed to the
power supply within the TNMC.
2. From the power supply, power from the power supply is relayed to the MDC, the current loop
interface (CLI) card, and to each module.
9.5 Service and Diagnostics
Reference Drawings:
Control Layout; Outdoor LED TNMC. ..................................................... Drawing B-107507
Exploded Front, Module.......................................................................... Drawing B-126111
Exploded Rear, Module .......................................................................... Drawing B-126112
F. Assy; 832 LED TNMC......................................................................... Drawing A-143808
F. Assy; 848 LED TNMC......................................................................... Drawing A-144323
Component Layout; 832/848 LED TNMC............................................... Drawing A-145045
Schematic; Red LED TNMC ................................................................... Drawing A-145620
The following subsections address servicing of the following display components:
l
TNMC Interface Card
l
TNMC Controller
l
Modules and Drivers
l
Power Supplies
9-2 TNMC Maintenance