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Electro-Mech Scoreboard Co. • 120 Industrial Parkway • Wrightsville, GA 31096
Phone: (800) 445-7846 • Fax (478) 864-0212 • Email: score@electro-mech.com
LED Driver Module Replacement
Electrical connections to the LDM12 LED DRIVER MODULE are made with ribbon
cable polarized IDC sockets and locking ramp crimp terminal housings that mate with
jacks on the module. The module is secured inside the scoreboard with six machine
screws.
1. Unplug the electrical connections from the module. Do not cut the plastic tie wraps
around the ribbon cables.
2. Remove the six screws.
3. Remove the module from the scoreboard.
4. Insert the replacement module in the scoreboard.
5. Secure the module with the six screws.
6. Insert the plugs into the jacks on the module.
To avoid damage to the module, always turn off the power to the scoreboard when
removing or replacing it.
LPS5 LED POWER SUPPLY MODULE FUNCTIONS
20 VDC OUTPUT TO LED DRIVER MODULE
SERIAL DATA INPUT / OUTPUT
A relay inside the LPS5 Power Supply Module isolates the LDM12 LED Driver Module
from the control cable when the scoreboard is shut down. Connecting the control console
to J5 with the 10 ft. extension cable bypasses this relay. Figure 18 shows the location of
the fuses in the LPS5 LED Power Supply Module. The table following the figure lists the
fuse ratings, functions, and part numbers.
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