User manual

Specifications
2014-04-15 159
8.3 Blank Screen
1112
3
1
2
3
3
Rear View Front View
Diagnosis
Possible Reason Measure
Switching to a CPU Port
without active Source
(computer, CPU).
 Switching to a CPU Port with an
active source (computer, CPU).
Monitors
remains dark
after switching
operation
Connection of a console
with a CON port or
connection of a CPU to a
CPU port not established
correctly.
 Check connections regarding
CON and CPU ports at the
matrix.
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)
CPU unit LED 3
green
Connection between
CON unit, matrix and
CPU unit
 Establish a connection between
CON unit and CPU unit via
matrix