33
UK
4 APPENDIX
4.1 TROUBLESHOOTING
PROBLEM
CAUSA
SOLUTION
the ON/OFF LED
(status indicator) does
not light up.
Power supply unit in
protection mode.
Check and eliminate the cause
of the short-circuit.
Replace the power supply unit.
No 27 Vdc on the BUS terminal
of the power supply unit.
Make sure there is 24 – 27 Vdc
at the OUTPUT of the A/V Node
to which it is connected. If the-
re is no voltage, eliminate the
short-circuit on the BUS (at the
OUT side of the A/V Node).
The Hi-Fi system is
not controlled via IR.
Errato cablaggio del
cavetto IR.
Check and correct wiring. the
cable with the IR transmitter
must be placed at a distance of
1 cm from the IR receiver of the
Hi-Fi system to be managed.
The ADJ LED stays off when
the Hi-Fi system is active.
Segnale audio non presente.
Check if there is an audio
signal.
Segnale audio molto basso.
Check the adjustment of the
level potentiometer or increase
the level of the signal given by
the external source.
Il led di livello è sempre rosso. Adjust the level potentiometer
correctly.
Il segnale riprodotto è distorto
anche a volumi bassi.
Make sure the level LED does
not turn red when playing
tracks. Adjust the potentiome-
ter of the active Hi-Fi system so
that the LED is always green (it
can only turn red for a very short
time, during musical peaks).
Summary of Contents for L4561N
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