Daktronics AF-3180-64-R,A - Manual (Page 45)

CPU
LED Color Function Operation
DS1 Red CAN TxD Flashes when controller is transmitting CAN
information.
DS2 Red CAN RxD Flashes when controller is receiving CAN
information.
DS3 Red System Reset Off when controller is functioning properly. Flashes
at 1.5-second rate if the watchdog timer is not being
reset by controller.
DS4 Red Run A steady flash indicates the controller is running
properly. Normal flash rate is about once per second.
DS5 Red U15 Programmed On when U15 contains a valid logic program.
DS6 Red U7 Programmed On when U7 contains a valid logic program.
DS7 Red Link On when Ethernet interface is in the link-up
condition. Flashes when the Ethernet chip detects,
transmits, or receives activity.
DS8 Red Speed On when the Ethernet interface is at 100Mbps. Off
when the Ethernet interface is 10Mbps.
DS9 Red Duplex On when the Ethernet interface is at full duplex. Off
when the Ethernet interface detects a collision in
half-duplex.
DS10 Red Collision Flashes when the Ethernet interface detects a
collision in half-duplex.
DS11 Red +5V On when +5V power supply is functioning.
DS12 Red +3.3V On when +3.3V power supply is functioning.
DS13 Red +2.5V On when +2.5V power supply is functioning.
Product Board
LED Color Function Operation
DS1 Green +5V On when +5V power supply is functioning.
DS2 Green +3.3V On when +3.3V power supply is functioning.
DS3 Yellow COM1 TxD Flashes when transmitting serial information.
DS4 Yellow COM1 RxD Flashes when receiving serial information.
Temperature/Light Sensor
LED Color Function Operation
DS1 Green +5V On when +5V power supply is functioning.
DS2 Red Run A steady flash indicates the controller is
running correctly. Normal flash rate is about
once a second. Flashes faster when the
sensor is transmitting temperature or light
information.
Complete the following steps to remove the controller from the display:
1. Open the display as described in Section 4.5.
2. Disconnect power.
3. Remove all power and signal connections from the board. “Locked”
connectors are released by pushing apart the latches, and then carefully
pulling them from the jack. When replacing the board, it is helpful to have
the cables labeled as to which was removed from which connector.
4. Remove each of the six nuts holding the board in place.
5. Follow the previous steps in reverse order to install a new controller board.
Maintenance and Troubleshooting
4-7