Daktronics Galaxy AF-3400 Series, Display Manual

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4.2 Signal Summary
The signal routing for the display can be summarized as follows:
1. Data from the control computer, which runs Venus
®
1500 software, travels
via RS232, RS422, modem, fiber optic cable, radio signal or Ethernet to the
signal termination enclosure at the primary display.
2. From the signal enclosure, signal is sent to the primary display via a quick
connect cable which connects to the quick connect input board.
3. From the quick connect input board, the signal is transferred to the display’s
controller via a 20-conductor ribbon cable.
4. From the controller, the signal then travels over one or more 20-conductor
ribbon cables (J11 through J18 provide signal out) to J1 input on the driver
of the first row of modules in the display.
5. Data exits at J2 output and is relayed to J1 of the next driver board and so
on traveling down the entire row of modules. The drivers use this display
data to control the LEDs.
6. On the primary display, in a Primary-Mirror (2V) configuration, the output
leaves the J2 output on the last column of modules via a 20-conductor
ribbon cable and connects to one or more 31-pin quick connect output
boards.
7. A quick connect interconnect cable transfers data from the primary to the
mirror display.
8. The 31-pin quick connect input board on the mirror display receives the
signal and transmits it to J1 on each row of the first column of modules via
a 20-conductor ribbon cable.
9. Data exits at J2 and is relayed to J1 of the next driver board and so on
traveling down the entire row on modules in the mirror face. This display
data is used to control the LEDs on this face.
10. The data displayed on the mirror face will be the same as that displayed on
the primary face.
11. Refer to Figure 21 for the signal summary in a primary display.
Figure 21: Primary Display Signal Summary (32-high Display)
Maintenance and Troubleshooting
4-2