Troubleshooting
2014-04-15
205
9.7
Blank Screen
1
1
1
2
3
3
Rear View
Front View
Diagnosis
Possible Reason
Measure
Monitors
remains dark
after switching
operation
Switching to a CPU Port
without active Source
(computer, CPU).
Switching to a CPU Port with an
active source (computer, CPU).
LED
1
on or
LED
2
off
Connections CON Unit,
matrix and CPU Unit.
Check connecting cables and
connectors. (No cable, cable
break, CPU/CON Unit offline,
CPU/CON Unit connected to the
wrong port)
LED
3
off
Power supply
Check power supply units and
the connection to the power
network.
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