Daktronics AF-3090-89-R,A User Manual
Page 31
Maintenance &
Troubleshooting
4-6
Six diagnostic LEDs are located on the controller; the table below tells what each LED denotes.
LED
Color
Function
Operation
Summary
TEMP
Red
Temperature
Level
Flashes
Flash rate is dependent upon the temperature.
Flashes faster in high temperature and slows as the
temperature decreases.
LGHT
Red
Photocell Light
Level
Flashes
Flash rate is dependent on the light level. Flashes
faster in bright light and slows as darkness descends.
RUN
Red
Controller
Steady
Flash
A steady flash indicates the controller is running
correctly. Normal flash rate is about once a second.
PWR
Green
Power
Always On
Power to the data input circuit when lit.
RX1
Yellow Com 1
Flashes
Turns on and flashes when receiving information.
Normal condition is off.
RX2
Yellow Com 2
Flashes
Turns on and flashes when receiving information,
typically used in custom applications. Normal
condition is off.
The controller contains two jumpers (W1 and W2) for use with a modem system. The jumpers
must jump both pins for a modem system.
Complete the following steps to remove the controller from the display.
1. Disconnect power from J2.
2. Remove all power and signal connections from the board. “Locked” connectors are released
by squeezing together the tabs, 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.
3. Remove each of the six screws holding the board in place.
4. Follow the previous steps in reverse order to install a new controller board.
Modem
If a modem was included with the display, it is located inside the display next to the controller
board.
1. To replace a modem, first disconnect the
power and signal connections (refer to Figure 22 for the
location of the power jack).
2. The modem is held in place with four screws.
Remove the screws and lift the modem out of the display
the display.
3. Attach the new modem using the same four
screws removed in step 2, above.
The modem module has two LEDs. The Power
LED should remain lit while power is applied to
the modem. The Active LED will light when the
modem is in the process of communicating.
A modem system requires jumpers to be set on the controller
board. Refer to the Controller section in 4.6 for the jumper
settings.
RS/232
OUT
J1 Phone
IN
Active
LED
Power
LED
Power
Connection
Figure 22: Modem Board