Component Access & Digit Replacement - Daktronics BB-2140 Display Manual

Problem
Display digits light, but
not in the correct order
Digits light, console
works, but nothing
displays
Display works, but some
LEDs always stay on
Display works, but some
LEDs do not light or they
blink
Display works, but some
digits do not light
Display works, but one
section of digits does
not light
Component Access & Digit Replacement
Reference Drawings:
Component Access; BB-2140 & BB-2141 .......................................................... DWG-236432
Component Access; BB-2150 & BB-2151 ........................................................ DWG-1060251
Refer to DWG-236432 and DWG-1060251 for instructions on how to open the shot clock
cabinet and replace the digit panels.
Possible Cause
Incorrect sport code
Incorrect driver address
No wired signal from
control console
No radio signal from
control console
Bad/damaged field
wiring
Short in digit circuit
Bad connection
Bad digit or driver
Bad digit or driver
Incorrect sport code
Incorrect driver address
Wrong console
controlling the display
Radio Interference
Bad transformer
Troubleshooting
7
Solution/Items to Check
Ensure the correct sport code is being
used for the display model. Refer to the
appropriate console operation manual in
Control Console (p�2).
Ensure all drivers are set to the correct
address. See Setting the Driver Address
(p�9).
(see solution on previous page)
(see solution on previous page)
Check that the red DS3 LED on the driver
lights up when sending commands from
the controller. See LED Drivers (p�8).
Exchange the digit with a working one
of the same part # to verify the problem.
Replace if necessary. See Component
Access & Digit Replacement (p�7).
Verify the connector on the back of the
digit circuit board is secure.
Exchange the digit or driver with a
working one of the same part # to verify
the problem. Replace if necessary. See
Component Access & Digit Replacement
(p�7) or LED Drivers (p�8).
(see solution above)
(see solution above)
(see solution above)
Another console's radio signal may be
transmitting to the display.
There may be other radio transmissions in
the area that overpower the console.
If it is not possible to disable the interfering
device, it may be necessary to run a wired
signal connection instead.
Exchange the transformer with a working
one of the same part # to verify the
problem. Replace if necessary.