Troubleshooting
5
Problem
Possible Cause
Solution/Items to Check
Display works, but one
section of digits does
not light
Bad multi-section
connection
Verify power/signal interconnects between
display sections are properly connected.
Refer to appropriate schematic drawings.
Bad power supply
Exchange the power supply with a working
one of the same part # to verify the
problem. Replace if necessary. See
Bad power supply circuit
board
Exchange the circuit board with a working
one of the same part # to verify the
problem. Replace if necessary. See
Speed of Pitch (SOP)
digits do not light
No signal from SOP
driver
Ensure that there is a separate signal
run connected to the SOP driver from a
dedicated All Sport console using code
5500
. Refer to schematic drawings and
ED-
12224
Component Locations & Access
Component location varies with each display model. Refer to the component location
drawings attached to the product specification sheets listed in
Appendix A
. For
component locations of Modular and Hybrid Football Scoreboards, refer to the tables in
Appendix A
.
All internal electronic components are reached by opening a digit panel or an access
door. Look for labels similar to those shown in
components. Note that the same labels are on both front and rear access panels.
SERVICING.
DISCONNECT POWER BEFORE
LOCATED BEHIND THIS PANEL.
CONTROL UNIT AND FUSES ARE
CAUTION
LL-1065 REV. 2
BEHIND THIS PANEL
DRIVER IS LOCATED
PRIMARY
THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES. OPERATION IS SUBJECT TO
THE FOLLOWING TWO CONDITIONS: (1) THIS DEVICE MAY NOT CAUSE HARMFUL
INTERFERENCE AND (2) THIS DEVICE MUST ACCEPT ANY INTERFERENCE RECEIVED,
INCLUDING INTERFERENCE THAT MAY CAUSE UNDESIRED OPERATION
BEHIND THIS PANEL
DRIVER IS LOCATED
Before July 2020:
After July 2020:
Primary Driver Location
(Power/Signal Termination)
Primary Driver Location
(Power/Signal Termination)
BEHIND THIS PANEL
DRIVER IS LOCATED
PRIMARY
THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES. OPERATION IS SUBJECT TO
THE FOLLOWING TWO CONDITIONS: (1) THIS DEVICE MAY NOT CAUSE HARMFUL
INTERFERENCE AND (2) THIS DEVICE MUST ACCEPT ANY INTERFERENCE RECEIVED,
INCLUDING INTERFERENCE THAT MAY CAUSE UNDESIRED OPERATION
Additional Drivers
or
Power Supplies
(for White Digits)
Additional Drivers
or
Power Supplies
(for White Digits)
BEHIND THIS PANEL
DRIVER IS LOCATED
Figure 4:
Component Location Labeling
