Instruction manual

Orion XC Installation and Operations Manual
117
Blank Screen
Figure 111. Troubleshooting Blank Screen
Problem Possible Reason Solution
Monitors remain blank 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