P
ART
REPLACEMENT
G
ROUND
CONTROLLER
(C
ONTROLLER
#3)
BOARD
REPLACEMENT
AlphaXpress 8731 Sign Installation and Maintenance Manual (pn 1508610601 rev. A)
39
Ground controller (Controller #3) board replacement
Î
To replace the ground controller #3 board
1.
Remove power from the ground controller panel.
2.
Locate the controller board to be replaced.
3.
Set the DIP switches and jumpers on the replacement board to match the DIP switches and jumpers
on the board being replaced. At least one dip switch must be on for the controller to function. See
Figure 32.
Figure 32.
DIP switch settings for the ground controller.
4.
Disconnect all the cables from the ground controller board.
WARNING!
Hazardous voltage. Contact with high voltage may cause serious injury or death. Always
disconnect power to unit prior to servicing.
Switches #1 to #8 = address
DIP switches
#1 through #8 = address
ON
DIP switch addressing
Dipswitch
Address
1
1
2
2
3
4
4
8
5
16
6
32
7
64
8
128