VIDEO SWITCHERS CONTROLLING (continuation)
VPP404 / VPA404 / VPA408
6
YOUR TROUBLE
THE CAUSE AND ITS SOLUTION
After connecting the sup-
ply voltage device does
not work.
The power supply is not connected.
Check the supply connector and the polarity of power supply.
Switch on the power breaker.
The supply adapter is not dimensioned sufficiently.
Check if the adapter power output and voltage agree with the
video switchers requirements.
After connecting the sup-
ply voltage the LEDs are
on, but the device does
not work.
The supply adapter is not dimensioned sufficiently.
Check if the adapter power output and voltage agree with the
video switchers requirements.
Automatic switching se-
quence cannot be
switched on.
Cameras listed in the switching sequence are off from the switch-
ing.
Correct the sequence and check the sequence period (page 6).
Device does not react to
alarm inputs.
The alarm processing is switched off in the main menu.
Set up the alarm with the function of ALARM (page 6).
The connection of the alarm signals is disconnected.
Check the connection of the alarm connector.
There is no picture on the
monitor.
The video switchers and monitor patchcord is defective.
Check the patchcord carefully.
