NORDEN -
Multi-channel Media Player
User Manual 6
Model NVS-50010508EV NVS-50020508EV
Rated output power 500W 100V
Input
sensitivity
Emergency mic 5mV 600 ——
sensitivity Line 1000mV 10k
Harmonic
distortion
Emergency mic <1% 1kHz ——
distortion Line <1% 1kHz
Freq.
response
Emergency mic 80Hz-15kHz ±3dB ——
response Line 50Hz-18kHz ±3dB
Signal to
noise ratio
Emergency mic >75dB A weighting ——
noise ratio Line >80dB A weighting
Line output
Output voltage 1000mV ——
Line output Frequency range 80Hz-15kHz ±3dB
Harmonic distortion <1% 1kHz ——
System
connection
control
contact
output/input
System fault relay output Short circuit, no voltage
System
connection
Emergency mode relay output Short circuit, no voltage
connection
control
Fire reset input Short circuit, t 0.5S, no voltage
control
contact
8 channel dry contact output Short circuit, no voltage
contact
output/input
8 dry
cont act input
Short circuit mode Short circuit input, no voltage
output/input
cont act input
Level mode 3.3V~24V
Voice
message
Data format WAV ——
Voice
message
Storage form SD card ——
message Storage time >10 years ——
Working
power
AC AC 220-240V/50-60Hz
power DC DC 24V/30A
Package size (L*W*H) 550×510×215mm
Machine size (L*W*H) 483×420×132mm
G.W. 14kg 13.3kg
N.W. 12.05kg 11.75kg
This specification is subject to change without notice.
IV. INSTRUCTIONS
This device can play CD, VCD, MP3 and other audio sources. As for this device, the audio
source is provided by CD, VCD, MP3, SD card, USB flash drive, Bluetooth device and radio
station.
1.
Audio playback mode switching: press “FUNCTION” button, the digital screen will display DISC-
FM / AM-BT in sequence; in the DISC state, the CD, SD card and USB interface audio source can be
played. If the device has a sound source connected to a CD, SD card or USB interface, press the
“FUNCTION” button, the digital screen will display CD, SD or USB instead of DISC; in the radio state, the
device can perform AM/FM band radio operation; and in the BT state, the device is in Bluetooth mode.
2.
CD/USB/SD card source priority: in the DISC playback state, CD, SD card and USB interface audio
source can be played, and the audio source will have priority: CD>USB>SD card; whether the interface
has access to the audio source device, the device will read the CD, USB and SD card in the order of the
audio source priority from high to low and play automatically in the DISC playback mode. If the CD has
no audio source, it will continue to read the USB audio source, and so on; to prioritize USB audio
source, you must ensure that the CD player has no audio source device; to prioritize SD card audio
source, you must ensure that the CD player and USB interface have no audio source device (Note:
when playing a USB source, the access CD source will not be read; when playing the SD card source, the
access CD or USB source will not be read).
3.
Bluetooth mode: press the “FUNCTION” button to display the BT text on the digital screen. Please
turn on the Bluetooth device switch of the mobile phone and computer to search the Bluetooth device,
find the “NVS-40020111PL” device name for pairing, and play the sound source of the mobile phone
and computer when the pairing is successful (“Connected!” will be displayed on the digital screen after
the device is successfully paired with the mobile phone and the computer), with excellent wireless
transmission function less than10m.
4.
Play/Pause: when the device is in DISC / BT / audio playback state, press the “ ” button to
play/pause the playback, and the screen displays “PLAYING / PAUSE”. In the radio mode, this button is
invalid.
5.
Stop Platback: in Disc/BT/Radio mode press the button during playback to stop playing screen will
display “Stop” press again and the audio will start playing from the beginning in the radio mode the
radio station will be muted.
6.
Song selection: Press “” or “” button to play the previous or next song.
7.
Playback mode: the device has the following settings for several playback modes:
Press the REP button in the playback state to set the playback mode. The playback mode switching
sequence is order playback, single loop, loop playback, and single playback.
8.
Station selection: this machine provides two ways of station selection: direct station selection and
storage number invocation.
Direct station selection: press the BAND button to select the received band; press the UP or
DOWN button to search for the radio channel from low frequency to high frequency or from
high frequency to low frequency. Each time you press the button, the receiving frequency
will be increased by one step. (one step for FM is 0.1kHz, for AM 9kHz). The radio frequency
range of the local FM band is 87.00MHz-108.00MHz, and the radio frequency range of the
AM band is 522kHz-1620kHz. If the UP or DOWN button is pressed for more than 1 second,
it will enter the automatic search state, and the receiving frequency will increase or
decrease continuously. If the automatic search has continued for one week (referred to the
frequency value reached is the same as the one when the search is started) without a
station searched, it will stop searching.
Storage number invocation: first press the BAND button to select the received band; press
the MEMO storage button, the screen will display the “CH0 0” character, and the “ ”
button, the screen will display the “CH0 1” character and press this button continuously to
increment and invoke the storage station from 1 to 40, and press the “ ” button, the
screen will display the “CH40” character and press this button continuously to diminish and
invoke storage station from 40 to 1. If the stored station has a signal, it will play
automatically.
9.
Station storage: press the UP or DOWN button to search the radio channel from low frequency to
high frequency or from high frequency to low frequency. When the device receives the radio signal,
press the MEMO storage button, the screen will display “CH0 0” character, and press the “ ”
button screen will display “CH0 1” character, and press this button continuously to increase the
storage number from 1 to 40, and press “ ” button, the screen will display “CH40” character, and
press this button continuously to decrease the number from 40 to 1. After selecting the station
storage number, press the “MEMO” button again to store the currently displayed radio channel, and
the screen will display the “CH” character to indicate that the storage is successful, and the same
station takes the last storage operation as valid storage.
