Part replacement
P1509 21 x 125 Line Matrix
32
Front Access Full Matrix LED Sign Maintenance Manual (pn 1507610501 rev. A)
Sign controller board replacement
➩
To replace the controller #1 or #2 board
1.
Open the sign. See “Opening a sign” on page 28.
2.
Turn the sign breaker to the OFF position.
3.
Locate the controller board to be replaced.
4.
Set the DIP switches and jumpers on the replacement board to match the DIP switches and jumpers
on the board being replaced.
Figure 26.
Controller jumper locations and dip switch settings
WARNING!
Hazardous voltage. Contact with high voltage may cause serious injury or death. Always
disconnect power to unit prior to servicing.
Jumpers
Jumpers
Controller #2 DIP switches
#2 = ON
All others = OFF
Controller #1 DIP switches
#8 = ON
Set others based on serial address of the
controller. Refer to the table on page 34.
ON
