moon 350P Owner's Manual page 11

Owner's Manual
There are three (3) types of settings available on the
optional phono section of the Nēo 350P; Capacitance
loading, Resistance loading, and Gain level. Each setting
is adjustable through the use of jumpers. For each type
of setting, there are 2 banks of jumpers – one each for
the left and right channels. This is the result of the
phono section's genuine mirror-image circuit design
which yields exceptional stereo separation.
Always disconnect all audio connections and the AC
power cord of your Nēo350P prior to changing any of
the following input settings.
There are six (6) screws, located on the top of the
chassis, that you must remove using a phillips head
screw driver. Once these screws are removed, carefully
lift off the chassis cover. Once the cover is removed, you
are ready to make all of the necessary internal
adjustments to the 350P phono module to achieve
optimal sonic performance.
Resistance Loading:
There are two (2) different settings available for setting
the resistive load; 100Ω and 47kΩ which are
represented by jumper sockets R12 for the left channel
and jumper socket R29 for the right channel (refer to
figure 2 – section labeled "LOADING"). The factory
default setting is 47kΩ, therefore both jumpers will be
found in each of the two left most sockets.
For moving magnet (MM) cartridges, it is recommended
that you leave the jumpers inserted in the factory
default setting of 47kΩ. Conversely, if you're using a
moving coil (MC) cartridge, you should use the 100Ω
jumper settings by simply inserting the supplied
jumpers into each of the two right-most sockets of
jumpers R12 and R29.
Capacitance Loading:
There are two (2) different settings available for the
capacitive load; 0pF and 100pF which are represented
by jumper sockets C9 for the left channel and jumper
sockets C17 for the right channel (refer to figure 2 –
section labeled "LOADING"). The factory default setting
is 100pF for a moving magnet cartridge, therefore both
jumpers will be found in each of the two right most
sockets.
For MM cartridges, it is recommended that you leave
the jumpers inserted in the factory default setting of
100pF. Conversely, if you're using a MC cartridge, you
should use the 0pF jumper settings by simply inserting
the supplied jumpers into each of the two left-most
sockets of jumpers C9 and C17.
Gain Level:
There are two (2) different settings available for gain
level. They are 40dB for MM cartridges and 60dB for MC
cartridges, which are represented by jumper socket J18
for the left channel and jumper socket J24 for the right
channel (refer to figure 2 – section labeled "GAIN"). The
factory default setting is for a MM cartridge , therefore
both jumpers will be found in each of the two right
most sockets labeled MM; It is highly recommended
that you do not use the jumpers labeled MC for an MM
cartridge as this will overload the 350P. When using a
MC cartridge, you should insert the supplied jumpers
into each of the two left-most sockets labeled MC.
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