Daktronics 5000 Series, Руководство по обслуживанию

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Display Troubleshooting
9
Issue Issue Image Troubleshooting Steps
2 modules
out
1�
Check status indicators on the back of the
modules. If indicators are off, check the power
indicator on the power supply for affected
modules. If the power supply indicator is off and
there is power connected to the power supply,
replace the power supply.
2�
If there is power to the power supply and
the modules, check the SATA cables to the
modules. It is possible the SATA cables at the
beginning and end of the affected modules are
disconnected or bad.
3 or more
modules
out in a line
within the
same PLR
section
1�
Check the modules at the beginning and end
of the affected area. This issue can be caused
by disconnected or bad SATA cables on both of
those modules. If the module power indicator is
on, there is most likely a SATA cable issue. If the
module power indicator light is off, check the
power supplies for the modules at each end of
the issue are on. If not power or signal, it is most
likely a module issue.
2�
Measure the site power to verify it meets
Daktronics requirements. If this issue is only seen
with white or light-colored content, there is most
likely a power issue. If there is insufficient power,
work with an electrician to establish proper site
power.
Display too
bright
1�
Immediately call Daktronics help desk and have
them blank the display.
2�
Verify the Multi-Direction Light Sensor (MDLS) is
connected.
3�
Inspect the area for a light source shining on
the Multi-Direction Light Sensor (MDLS). This may
cause incorrect readings. If necessary, relocate
the MDLS to a different area.
4�
Verify the MDLS is mounted correctly. If not,
remount the MDLS.
5�
Have the help desk verify that the MDLS is set to
multi-direction and automatic.
Display too
dim
1�
Verify the MDLS is connected.
2�
Verify the MDLS is mounted correctly. If not,
remount the MDLS.
3�
Verify there is no debris or excessive dirt buildup
on the three MDLS windows.
4�
Have the help desk verify that the MDLS is set to
multi-direction and automatic.
5�
Have the help desk verify the display is not
experiencing thermal dimming due to excessive
heat.