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Orion XC Installation and Operations Manual
99
Blank Screen
Figure 85. Troubleshooting Blank Screen
Problem
Possible Reason
Solution
Monitors remain dark after
switching operation
Switching to a CPU port with no
active source (computer, CPU)
Switch to a CPU Port with an
active source (computer, CPU).
LED
1
on or LED
2
off
Connections between 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