Diagnostics, Driver leds, Power on self-test – Daktronics DF-2100 User Manual
Page 22: Figure 14: driver diagnostics, 2 diagnostics
4.2 Diagnostics
Driver LEDs
Figure 13: Driver
Diagnostics
The driver inside the display contains three LEDs that provide information
about the working of the display. Refer to Figure 13 for their location. These
LEDs can help pinpoint problems with driver set-up or operation.
The LEDs give the following information:
LED
Color
Status
DS1
Green
Continuous light when driver has power.
DS2
Red
Blinks when driver receives signal.
DS3
Amber
Blinks when driver is running.
Power On Self-Test
A useful troubleshooting tool is the power on self-test performed by the host
driver every time the display powers up: The display should show the
information listed in the left column. Every “X” in the chart refers to a
number.
Information shown
on display
Meaning of information
rNN
Revision number of software
XLY
X = sign #; L is constant, Y = line #
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Diagnostics and Troubleshooting