protech NIPROS NC-400 Operating Instructions

For using NC-400.
Before operating your NC-400, please read this manual thoroughly and keep it for future reference.
NIPROS accept no liability whatever for incidental damages arising out of the use or inability to use
the product, including, but not limited to, damage to the camera, etc., corruption or loss of data, lost
business revenue or suspension of business operations.
NIPROS accept no liability whatever for damages arising from improper use not conforming to the
instructions in the instruction manuals.

■Features

The noise reduction with a transformer and the ground lift circuit enables clear sound recording .
Supports XLR 3P input and RCA pin jack input.
The output of the microphone level is enabled by an attenuator circuit.
The fine adjustment of the output level is enabled by the trim volume.
Two systems of the XLR 3P output and the XLR 5P output are equipped with. And enables 2 distribution output.

■Outsideview and Dimensions / Parts Names and Functions

Input Panel
Input Connectors L/R (XLR 3-pin) Connect audio signals, a line-leve (+4dB or -20dB) or microphone-level (-60dB).
Iuput Connectors L/R (RCA Pin-Jack) Connect audio signals of the RCA pin-plug.
Output Connectors L/R (XLR 3-pin) Used for the audio signal output.
Output Connector (XLR 5-pin) Used for the audio signal output. The output signal level is -60dB and can be adjusted finely
Input Level Select Switches [LINE(+4dB)/MIC(-60dB)LINE(-20dB)/RCA IN] Set to the appropriate position according to
Output Level Select Switches [-20dB/-60dB] Select the output signal level, -20dB or -60dB, when the line-level, +4dB,
Output Level Volume [LEVEL] Adjust the ouput signal level.
Output Signal Level Fixing Switch [LEVEL/FIX] When the FIX position, the output level volume is invalid to fix the level.
Earth Lift Select Switch [EARTH LIFT ON/OFF] Select the EARTH LIFT ON or OFF for each input and output on each
To minimize the noise caused by the equipment, wiring and power supply that are connected
to this unit and by the other environmental conditions of using this unit
Set each of EARTH LIFT switches on the input side and the output side to ON or OFF, respectively.
TM
Main Panel
(Operation Panel)
PROTECH
LINE(+4dB)
MIC(-60dB)/LINE(-20dB)
RCA IN
ON
EARTH LIFT
OFF
LINE(+4dB)
MIC(-60dB)/LINE(-20dB)
RCA IN
LINE(+4dB)
MIC(-60dB)
RCA IN
ON
EARTH LIFT
OFF
LINE(+4dB)
MIC(-60dB)
RCA IN
An input level select switch is provided for each channel.
The line-level(+4dB) input signal is adjusted to the output level of -20dB or -60dB
by the output level select switche
by the output level volume control
is input and the select switch is set to the LINE(+4dB) position.
The output signal can be adujusted by the LEVEL volume control.
channel.
NC-400
NOISE EATER
NC-400
N O I S E E A T E R
LEVEL EARTH LIFT
ON
-20dB
L
-60dB
OFF
FIX
THROUGH
-60dB
LEVEL EARTH LIFT
ON
-20dB
R
-60dB
OFF
FIX
THROUGH
-60dB
LEVEL
L
EARTH LIFT
ON
-60dB FIX
LEVEL
OFF
R
-60dB FIX
MADE IN JAPAN
NIPPON VIDEO SYSTEM CO.,LTD
134
and output level volume control
.
the input connec tor and the input signal level.
EARTH LIFT ON : floats the circuit from the ground.
EARTH LIFT OFF : grounds the circuit.
Operating
Instructions
Output Panel
35
.