Daktronics ST-2373 Series, Manual

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Maintenance & Troubleshooting
12
4 Maintenance & Troubleshooting
Turn off power before performing any repair or maintenance work. Only qualified service
personnel may access internal electronics� Disconnect power when not using the display�
Problem Possible Cause Solution/Items to Check
Display does not light No power to the display
Check that the main circuit breaker for the
display is on.
Check that the display is receiving 120
VAC power.
Light strips do not light
No power to the control
console
Ensure the console is plugged into a
convenience outlet or 120 V power supply.
Exchange the console with a working
console and enter the correct sport code
to test. Replace console if necessary.
No wired signal from the
console
Ensure a 1/4" phone signal cable is
connected between J1 , J2 , or J3 on
the control console and the signal jack
located behind the right rear access door.
Improper connection
between tables
Ensure 3-pin XLR cables are connected
between all tables with light strips. The
XLR input and output jacks are located
behind the right and left rear access doors,
respectively.
Incorrect sport code
Ensure the correct sport code is being
used. Refer to the console operation
manual in Light Strip Controllers (p�3) .
No signal to driver
Check that the red DS1 LED on the
light strip driver lights up when sending
commands from the control console. See
LED Drivers (p�14) .
No power to driver
Check that the green DS2 LED on the light
strip driver remains lit up when the display is
powered on. See LED Drivers (p�14) .
Incorrect driver address
or function
Check that the light strip driver is set to the
correct address or function. See LED Drivers
(p�14) .
Backlit LEDs flicker
Under- or overloaded
Adjust loads on power supplies to be within
recommended limits.
Malfunctioning power
supply
Replace power supply. See Replacing a
Power Supply (p�17) .
Entire backlit display is
not lighting
Bad wire connections Restore connection.
Malfunctioning power
supply
Check power supply and replace as
needed. See Replacing a Power Supply
(p�17) .
Short
Search wiring for a short circuit between
the red and blue wires. Replace bad wiring
or use electrical tape to insulate the wires.
Overloaded
Adjust loads on power supplies to be within
recommended limits.
One backlit LED module
is not lighting
Malfunctioning module
Replace the module. See Replacing an
LED Module in a String (p�16)