Daktronics AF-3400-12-RGB - Manual (Page 39)

column of block) which share
the same power supply
assembly, fail to work. • Replace the power supply assembly.
Entire display fails to work. • Check for proper line voltage to the power J-box.
• Check for correct power at power termination panel.
• Check for correct power to modules (12 VDC).
• Check the breakers in the power termination panel.
• Check/replace the ribbon cable from the controller to the
modules.
• Check the voltage settings on the power supplies.
• Check the signal cable to the controller.
• Replace the controller.
• Verify proper use of the software in the operation manual on
the CD (ED-13530).
Temperature always reads –196F/-
127C degrees F/0 degrees C.
• Check temperature sensor cable connections at both
displays.
• Check for correct power on temperature sensor.
• Check that the temperature sensor address is set to 1.
• Replace the temperature sensor.
Display is stuck on bright or dim. • Check Manual/Auto dimming in Venus 1500 software.
• Check light detector cable/wiring.
• Check light detector for obstructions.
• Replace the light detector.
• Replace the controller.
6.4 Replacement Parts List
Daktronics displays are built for long life and require little maintenance. However, from time
to time, certain display components will need replacing. The Replacement Parts List
provides the names and numbers of components that may need to be ordered during the life
of the display. Information on the Daktronics Exchange and Repair & Return Programs is
located in Section 5. Refer to these instructions if any display component needs replacement
or repair.
Note: A collection of circuit boards working as a single unit may carry an assembly label.
Cables may also carry the assembly numbering format in certain circumstances. This is
especially true of ribbon cables.
Most circuit boards and components within this display carry a label that lists the part
number of the unit. If a circuit board or assembly is not listed in the Replacement Parts List,
use the label to order a replacement. A typical label is shown in Figure
24. The part number is in bold.
Figure 24: Typical Label
To prevent theft, Daktronics recommends purchasing a lockable cabinet
to store manuals and replacement/spare parts.
Maintenance and Troubleshooting 33