Lehmannaudio Decade Bedienungsanleitung Seite 26

50 Decade
Signal on one The DIP switches are
EN channel only. unevenly set.
One connection lead
has a loose contact, is
not well plugged in or
defective.
The subsequent input
stage is defective.
Left and right
The channels were re-
channels are versed in the connection
reversed. lead.
Signal level is too Non-optimal matching
low. between pickup cartridge
and Decade.
The selected input im-
pedance on the Decade is
too low.
Signal is soft and An MC impedance has
muffled. been selected for an MM
system.
Check the positions of both
DIP switches. Make sure that
the settings are equal on both
channels.
Check the connection leads
for slack joints, loose pushfits
or defects and, if necessary,
replace them. Potential causes:
system cable (headshell),
tonearm cable from turntable
to Decade and line cable from
Decade to the following input.
Check by connecting to differ-
ent line inputs.
Check the connection leads and
swap the channels here, if nec-
essary. Potential causes: system
cable (headshell), tonearm cable
from turntable to Decade and
line cable from Decade to the
following input.
Increase the gain factor ac-
cording to this user manual
by means of the switches
located on the front panel of
the Decade.
Select a resistance value for the
input impedance which is at
least 10 times greater than the
pickup's system impedance.
Deactivate all MC impedances
via DIP switch. Also watch out
for a custom impedance that
may be plugged in.
Signal sounds The gain is set too high
distorted. on the Decade.
The output of the Dec-
ade is connected to the
subsequent phono input.
The signal sounds The pickup system has
hollow, without been connected phase-
a proper bass and
reversed.
localisation.
Audible hum. The tonearm ground is
not connected on the
Decade.
Several connected devices
create a ground loop.
There is an interference
caused by some other
power consumer.
The mains transformer of
a device placed nearby is
causing interference at
the input.
Decade 51
Lower the gain factor according
EN
to this user manual by means
of the switches located on the
front panel of the Decade.
Connect the output of the
Decade to a line input on the
following amp.
Connect the system cable
in-phase.
Connect the tonearm ground
on the Decade.
Make a correct grounding con-
nection. If required, consult an
electrician.
One by one, disconnect all
devices connected to the same
electric circuit and listen to the
effect. Keep the interfering
device turned off during music
listening or use a mains filter to
connect it to the electric circuit.
Make sure the distance
between your hifi chain and
interfering devices is sufficient.