Daktronics Galaxy Series, Manual

Page: 47 / 90

Fiber Board
Reference Drawings:
Detail; AF-3160-8/16, Power/Control Corner............... Drawing A-178959
Detail; AF-3160-24/32/40/48, Power/Control Corner... Drawing A-178960
If a fiberboard is included with the display, it is located inside the display next to the
controller board. Refer to
Drawing A-178959 or A-178960 for fiberboard location.
1.
To replace a fiber optic board, first
disconnect the power and signal
connections (refer to
Figure 41
below for
disconnection of power).
Figure 41: Fiber Optic Board
2.
The fiber optic board is held in place
with four screws. Carefully remove them
using a 3/16” nut driver.
3.
Install the new fiberboard, replace the
screws and reconnect power and signal
cables.
The fiber module has three LEDs.
•
The power LED (DS1) should remain lit
while power is applied to the module.
•
The receive LED (DS2) will flash when
the display fiberboard is accepting signal
from the signal converter.
•
The transmit LED (DS3) will flash when
the display fiberboard is sending to the
signal converter.
In addition, the fiber module has two input fiber
connectors, which the computer or the previous display connects to, and two output
fiber connectors that connect to the next display. A straight through RJ45 cable (0A-
1229-0054) connects from J7 on the fiberboard to J3 on the controller board.
RS422 Surge Suppressor
Reference Drawings:
Detail; AF-3160-8/16, Power/Control Corner............... Drawing A-178959
Detail; AF-3160-24/32/40/48, Power/Control Corner... Drawing A-178960
The surge suppressor is an inline device that is used to filter the RS422 data line. It
suppresses surges down to a low voltage in order to protect the display controller’s
RS422 input. The surge suppressor must be firmly connected to the display chassis
in order to be effective. The mounting hardware used to secure the surge suppressor
is sufficient, if it is fastened properly.
If a surge board was included with the display, it is located inside the display next to
the controller board. Refer to
Drawing A-178959 or A-178960 for surge board
location.
Maintenance and Troubleshooting
4-11