Controller
Reference Drawings:
CNTRLR II, Galaxy, 8 Conn, J1087 ............................
Drawing B-204771
The controller sends data to the modules. Refer to the signal summary in
for more information and for the possible location of the controller board.
illustrates a typical controller.
Figure 23: Controller Component Layout
Complete the following steps to remove the controller from the display:
Tools required:
1
/
8
" hex wrench and
3
/
16
" nut driver
1.
Turn off power to the display
2.
Remove the modules A203 and A204 that are positioned directly in front of
the controller of the primary display
3.
Disconnect power plug from J5
4.
Remove all power and signal connections from the board (pushing apart the
latches and carefully pulling them from the jack will release the “Locked”
connectors) – when replacing the board, it is helpful to have the cables
labeled as to which was removed from which connector
5.
Remove the six screws holding the board in place using a
3
/
16
" nut driver
6.
Take note of the address of the controller and ensure the address on the
replacement board is the same
Follow the previous steps in reverse order to install a new controller board.
Maintenance and Troubleshooting
4-6
