TNMCs and Electronic Captions
21
Display signal routing can be summarized as follows:
1�
Data from the All Sport console (or DakTennis software) travels via cable harness into
the scoreboard.
2�
The signal travels to the driver/power enclosure through the
J1
connector on the
signal surge card.
3�
Data exits at
J42
via current loop harness and connects with
P43
at the driver
assembly. A power/signal interconnect (ribbon cable) carries the signal from
J17
on
the display driver to the first module, and the signal relays from module to module, in
daisy-chain style, until it reaches the last module on the message center.
4�
Electronic captions use multiple J42-P43 connections between drivers to relay the
signal to every display. Refer to the schematic drawings in
Appendix A
for precise
connections of a scoreboard.
Display power routing can be summarized as follows:
1�
Incoming power terminates at the terminal block in the scoreboard driver enclosure.
Using the same harness and
J42-P43
connections as signal, power is routed to the
display driver where it then travels to the power supply assembly.
2�
From the power supply, power is relayed to the first module, and then from module to
module.
3�
The modules and display driver draw their power directly from the power supply
assemblies (3-12.5 VDC). The power supply voltage is set by a resistor loaded on the
module (via
J4
).
Component Locations and Access
Reference Drawings:
Component Loc.: 34mm Red/Amb/Wht LED TNMC G4 ................................
DWG-975100
Component Loc.: 46mm Red/Amb/Wht LED TNMC G4 ................................
DWG-975635
Schematic; OD; 3500 TNMC, 16x80 34mm, R/A/W .......................................
DWG-1092559
illustrates the component locations of an 8x48-34mm display with all modules
removed. This layout will be similar for 8x32-34mm cabinets as well. Note that 8x48-34mm
cabinets with white LEDs require an additional power supply behind the fourth module.
Also, 8x64-34mm cabinets of all colors require an additional power supply behind the
sixth module. Refer to
DWG-975100
in
Appendix B
.
Display
Driver
Ground
Terminal
Block
Power Supply
(All LED Colors)
Power Supply
(While LED Only)
Figure 16:
8x48-34mm Display with Modules Removed
