Troubleshooting - Lehmannaudio Linear Bedienungsanleitung

58 Linear

Troubleshooting

EN
Fault Cause
LED indicator is Power supply or power
not on cord is not connected to
a power outlet.
Device is not turned on.
Fuse is defective.
No headphone Device receives no sound
signal signal.
Volume control is set to
minimum.
Headphone is not
plugged into the socket.
No signal at the
Headphone is plugged
line output
into the left headphone
output.
Solution
Connect the power supply
or power cord resp. with the
power outlet.
Turn on the device with the
mains switch located on the
rear side of the unit.
First make sure that the two
points mentioned above can be
excluded as error causes. Then
check the fuse: It the wire is
broken, replace the fuse. If
the fuse fails several times in
a row, the device is probably
faulty. In this case take the
device to the dealer where you
purchased it.
Make sure the signal source
provides a signal to the device.
Set the volume control to the
desired volume level.
Plug the headphone into the
headphone socket.
Pull the headphone connector
out of the device or plug it into
the right headphone socket.
No signal at the Device receives no sound
line output signal.
Volume control is at
minimum.
Signal is too soft Volume control is not
turned up high enough.
Signal source is too weak.
Gain factor is too low.
One or more of the pos-
sible PC internal controls
is not set to maximum
(only USB versions!).
Headphone signal The cable coming from
does not respond the signal source has
to the volume
been plugged into the
control output sockets.
Signal only on one DIP switches have been
channel set unequally.
Connection cable
between source and
headphone amplifier
has a loose contact, has
not been fully inserted
into the sockets or is
defective.
Linear 59
Make sure the signal source
EN
provides a signal to the device.
Turn the volume control to the
desired volume level.
Turn up the volume control
higher.
Select another signal source or
raise its level, if possible.
Increase the gain factor
according to the user manual
and adjust the DIP switch
accordingly.
Check the PC internal controls
and, if required, turn them up
to maximum.
Plug the cable coming from
the signal source into the input
sockets.
Check the settings of both DIP
switches and, if applicable,
correct them according to this
user manual.
Check the connection cable for
a faulty contact, loose pushfit
and defects and replace it
when necessary.