Daktronics ColorSmart BB-3115, Руководство по обслуживанию, Страница: 9 / 34

Troubleshooting
5
Component Locations and Access
All internal electronic components and digits are reached by opening a digit panel on
the front of the display.
Digit panels are typically held in place on the
display face by screws. To remove a digit,
simply unfasten the screws and carefully lift it
from the cabinet. The power/signal plug can
then be removed from the connector on the
back of the digit to completely free the digit
and access internal components.
Component location varies with each model, but drivers and power and signal
components are typically mounted inside the cabinet behind a digit panel. To locate
the driver(s), look for a warning label similar to that shown in Figure 4 .
Replacing Digits
LEDs are embedded in a circuit board that is mounted to the back of the digit panel.
Do not attempt to remove individual LEDs. In the case of a malfunctioning LED or digit
segment, replace the entire digit circuit board. To replace a digit circuit board ( Figure 5 ):
Stud Standoff
Digit Panel
Digit Circuit
Board
Light Diffuser
Assembly
Power/
Signal IN
Nut
Figure 5: UniView Digit Assembly
1� Open the digit panel as described in Component Locations and Access (p�5) .
2� Disconnect the 9-pin plug from the back of the digit by squeezing the locking tabs
together and pulling the connector free.
3� Use a 9/32" nut driver to remove the nuts securing the digits to the aluminum
standoffs, and then lift the digit off the standoff/diffuser assembly.
4� Position a new digit over the standoffs, and then tighten the nuts. It may be necessary
to also tighten the standoffs if they became loose while removing the nuts.
5� Reconnect the 9-pin plug. This is a keyed connector and it will attach in one way
only. Do not force the connection.
6� Secure the digit panel to the display face with the four screws, and then power up
and test the display to verify the issue has been resolved.
BEHIND THIS PANEL
DRIVER IS LOCATED
PRIMARY
Figure 4: Power Warning Label