Beyerdynamic SIR 800, Operating Instructions Manual, Page: 18 / 24

SIR Infrared System SIR 800
16
Troubleshooting
Error description Error cause Error solution
Switching on the system
produces no POWER ON
condition (green LAMP does not
light up). The main cable connector is not
properly connected to the
corresponding socket of the unit.
Connection cable possibly
defective.
The power switch is not in the
correct position.
Check if there is no connection to
the mains power.
Replace a new mains cable.
Turn on the POWER ON switch.
No clear IR signal at the SIR 320
receiver 2 or more channels switched to
the same frequency Check frequency setting on front
panel and control signal using the
test diodes