JVC BoomBlaster RV-NB50 User's Manual

JVC MP3 Player User's Manual - BoomBlaster RV-NB50.
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Inserting batteries

Main unit

PREPARATION

NOTE

•  The power will not be supplied through the batteries when the power is 

supplied through the AC outlet on the unit.

•  The battery is consumed more quickly than usual when operating the unit 

continuously or operating it in a cold place.

•  When the power is supplied using the batteries, the display will be blank 

when the unit is turned off (at standby).

•  When the power is supplied using the batteries, the unit is turned on by 

pressing 

 or source buttons on the main unit.

CAUTION

To avoid battery leakage or explosion, handle batteries properly.
•  If you are not going to use this unit for a month or more, remove the 

batteries from the battery compartment.

•  Dispose of batteries in the proper manner, according to federal, state, and 

local regulations. 

•  Do not mix with batteries of different types or with new and old ones.
•  Do not attempt to charge any batteries other than rechargeable ones.
•  Discard leaky batteries immediately. Battery leakage can cause skin burns 

or other personal injuries.

•  If chemicals leak onto the unit, clean the unit completely.

Match the polarities (+ and –) of the batteries.

Remote control

•  If the range or effectiveness of the remote control decreases, replace the 

batteries.

Connecting the power cord

Battery compartment

Discs

CDs with one of the marks below on 
the surface.

Files

Files in audio CD format, MP3/WMA 
files on a finalized CD-R or CD-RW. 
MP3/WMA files in a USB device can 
also be played.

Playable discs/files

Hierarchy
Level 1

Level 2

Level 3

Level 4

Level 5

Folder with its play order

MP3/WMA track with its play order

MP3/WMA folders/tracks configuration

•  MP3/WMA discs require a longer readout 

time than regular CDs. (It depends on the 
complexity of the folder/file configuration.)

•  Some MP3/WMA files cannot be played back 

and will be skipped. This results from their 
recording processes and conditions.

•  When making MP3/WMA discs, use ISO 9660 

Level 1 for the disc format.

•  This unit can play back MP3/WMA files with 

the extension code <.mp3> or <.wma> 
(regardless of the letter case upper/lower).

•  It is recommended that you make each MP3 

file at a sampling rate of 44.1 kHz and at a bit 
rate of 128 kbps. Similarly each WMA file at a 
sampling rate of 44.1 kHz and at a bit rate of 
96 kbps.

•  Playback order of MP3/ WMA files may be 

different from the one you have intended 
when recording. If a folder does not contain 
MP3/ WMA files, it is ignored.

•  This unit cannot play “packet write” discs.
•  If a CD-RW has been recorded in a different 

format, erase all data on the CD-RW 
completely before recording on it.

•  This unit can recognize up to a total of 511 

tracks and folders on a disc, and 65536 files 
in up to 200 groups (maximum 500 files in a 
single group) on a USB device.

For connecting/disconnecting:
•  USB Memory and DAPs compatible with the USB 

mass storage class specifications are connectable.

•  Always set the volume to the minimum level when 

connecting or disconnecting a USB device.

•  When connecting with a USB cable, use the USB 2.0 

cable less than 1 m (3.28 ft) in length.

•  You cannot connect a computer to the USB 

MEMORY terminal of the unit.

•  Connect one USB device to the unit at a time. Do 

not use a USB hub.

•  When the power is supplied through the AC outlet 

and USB is selected as the source, the USB device 
is charged through the USB MEMORY terminal, 
however some USB devices may not be charged.

For playing back:
•  When connecting a USB device, refer also to its 

manual.

•  You can play back MP3/WMA files on a USB device 

(maximum data transfer rate: 2 Mbps). This unit may 
not play back some files even though their formats 
are listed above.

•  While playing back a file in a USB device, do 

not disconnect the USB device. It may cause 
malfunction of both this unit and the device.

•  This unit is compatible with USB 2.0 Full Speed.
•  You cannot play back a file larger than 2 Gigabytes.
•  When playing a file of a large transfer rate, sounds 

may be dropped during playback.

•  This unit cannot recognize a USB mass storage class 

device whose rating exceeds 5V/500 mA.

•  You cannot send any data to your USB device from 

this unit.

•  Some USB devices may not be recognized or may 

not work properly.

•  Some DAPs are not compatible with the unit.
•  Copyrighted tracks (WMA-DRM* tracks) cannot be 

played back on the unit.

•  Coded or encrypted tracks in a special method 

cannot be played on the unit.

•  Electrostatic shock at connecting a USB device may 

cause abnormal playback of the device. In this case, 
disconnect the USB device then reset this unit and 
the USB device.

•  JVC bears no responsibility for any loss of data in 

the USB mass storage class device while using this 
unit.
* DRM (Digital Rights Management): Any of several 

technical methods used to control or restrict the 
use of digital media content on electronic devices 
with such technologies installed.

• Compatible iPod:

iPod model

iPod nano

iPod nano (2nd Generation)

iPod nano (3rd Generation)

iPod nano (4th Generation)

iPod mini

iPod mini (2nd Generation)

iPod (4th Generation)

iPod classic

iPod photo (4th Generation)

iPod video (5th Generation)

iPod touch

iPod touch (2nd Generation)

•  Sound distortion may occur when playing back 

audio sources with high recording levels. When 
distortion occurs, it is recommended to turn 
off the equalizer of iPod. For information on 
operating iPod, see the iPod instruction manual.

Important for USB mass storage class 
device

NOTE 

•  The power can also be supplied through the batteries (see the instruction 

below).

•  A small amount of power is always consumed even while on standby.

CAUTION

•  Only use JVC power cord provided for this unit to avoid malfunction or 

damage to the unit. 

•  Remove all the batteries when using the power cord.
•  Be sure to unplug the power cord from the outlet when going out or when 

the unit is not in use for an extended period of time.

Unplug the AC power cord from the unit to supply the power through the 
batteries in the battery compartment; otherwise, the unit does not work.

Maintenance

Troubleshooting

Display

1 Timer 

indicators

• 

 (timer), ON

2 SLEEP 

indicator

3 CLOCK 

indicator

4 iPod 

indicator

5  FM mode indicators
  STEREO, 

MONO

6 Repeat 

indicators

   

 

ALL, 

 

GROUP

7 Main 

display

8  PRGM (program) indicator
9 RANDOM 

indicator

0  Frequency unit indicators

iPod is a trademark of Apple Inc., registered in 
the U.S. and other countries.
“Made for iPod” means that an electronic 
accessory has been designed to connect 
specifically to iPod and has been certified by 
the developer to meet Apple performance 
standards.
Apple is not responsible for the operation of 
this device or its compliance with safety and 
regulatory standards.

Important for iPod devices

Disc player

CD capacity:

1CD

Signal-to-noise ratio:

85 dB

Dynamic range:

90 dB

Tuner

FM tuning range:

87.5 MHz – 
108.0 MHz

Antenna:

FM telescopic 
antenna

General

Speakers:
• Full range:

• Super woofer:

8 cm (3 3/16”)
cone x 2
Speaker impedance:
16 

Ω

13 cm (5 1/8”)
cone x 2
Speaker impedance:

Ω

Output power:

40 W 

Input terminal:
• USB:

•  Dock for iPod:
• DC IN:

Playable files: 
MP3, WMA
• Compatible device: 

Mass storage class

• Output power:

DC 5 V 

 500 mA

DC 5 V 

 500 mA

DC 12 V, 2 A

Output terminal:

PHONES (

φ3.5) x 1

SPECIFICATIONS

Power supply:

AC 120 V 

, 60 Hz

DC 15 V (R20 (SUM-1)/D 
(13D)-size batteries x 10)
External DC 12 V

Power 
consumption:

AC 120 V 

, 60 Hz:

 28 W (at operation)

1 W (on standby)

External DC 12 V
  2 A (power on mode)

Dimensions:

666 mm (26 1/4”) x 
231 mm (9 1/8”) x 240 mm
(9 1/2”) (W/H/D)

Mass:

Approx. 6.8 kg (15.0 lbs) 
(without batteries stored in 
the battery compartment)

Accessories 
provided:

Power cord x 1
Remote control x 1
Shoulder belt x 1
Buckle x 2
Stopper x 2

Design and specifi cations are subject to change 
without notice.

Microsoft and Windows Media are either 
registered trademarks or trademarks of 
Microsoft Corporation in the United States 
and/or other countries.

MP3/WMA groups and tracks are not played 
back as you expect.
\ Playing order is determined when the groups 

and tracks were recorded. It depends on the 
writing application.

The disc/USB device sound is discontinuous.
\ The disc is scratched or dirty.

\ MP3/WMA files have not been properly copied 

onto the USB device.

Sounds from USB device are interrupted.
\ Noise and static electricity may stop the sound. 

In this case, disconnect and connect the USB 
device again after turning off the unit.

iPod Operations

iPod does not play, but “CONNECT” appears on 
the display.
\ The iPod battery is low or exhausted. Charge the 

iPod battery.

Radio Operations

Hard to listen to broadcasts because of noise.
\ The FM antenna is not properly extended and 

positioned.

\ Electrostatic discharge from your body may 

cause noise. If this happens, turn off and on the 
unit again.

Timer Operations

Daily Timer does not work.
\ The unit has been turned on when the on-time 

comes. Timer starts working only when the unit 
is turned off.

If you are having a problem with your unit, check this 
list for a possible solution before calling for service.

General

Power does not come on.
\ No power is supplied. Check the power cord 

connection or change the batteries.

Adjustments or settings are suddenly canceled 
before you finish.
\ There is a time limit. Repeat the procedure again.
Unable to operate the unit or the unit does not 
work properly.
\ The built-in microprocessor may malfunction due 

to external electrical interference.
Unplug the power cord, then plug it back in.

\ Batteries are exhausted. Change the batteries.
Unable to operate the unit from the remote 
control.
\ The path between the remote control and the 

remote sensor on the unit is blocked.

\ The batteries are exhausted.
No sound is heard.
\ Headphones are connected.
While the power is supplied using the batteries, 
sound from the speakers is distorted or too quiet.
\ Batteries are exhausted. Change the batteries.

Disc/USB Mass Storage Class Device 
Operations

The disc/USB device does not play.
\ The disc is placed upside down. Place the disc with 

the label side up.

\ The disc is recorded with the “packet writing (UDF 

file unit).” It cannot be played. Check the files you 
want to play back.

\ The USB device is not connected properly.

To get the best performance of the unit, keep 
your discs and mechanism clean.

Handling discs
•  Remove the disc from its case by holding it 

at the edge while pressing the center hole 
lightly.

•  Do not touch the shiny surface of the disc, or 

bend the disc.

•  Put the disc back in its case after use.
•  Be careful not to scratch the surface of the 

disc when placing it back in its case.

•  Avoid exposure to direct sunlight, 

temperature extremes, and moisture.

Cleaning discs
•  Wipe the disc with a soft cloth in a straight 

line from center to edge.

Cleaning the unit
•  Stains should be wiped off with a soft cloth. If 

the unit is heavily stained, wipe it with a cloth 
soaked in water-diluted neutral detergent 
and wrung well, then wipe clean with a dry 
cloth.

•  Since the unit may deteriorate in quality, 

become damaged or get its paint peeled off, 
be careful about the following:

  –  DO NOT wipe it hard.
  –  DO NOT wipe it with thinner or benzine.
  –  DO NOT apply any volatile substance such 

as insecticides to it.

  –  DO NOT allow any rubber or plastic to 

remain in contact for a long time.

Cleaning the CD pickup lens
•  Keep the CD pickup lens clean, or the sound 

may be degraded. Use a blower (available at a 
camera store, etc.) to blow dust off the lens.

ABOUT DISC/FILE/iPod/DISPLAY

•  The reflection factor of CD-RW is lower than that of 

other CDs, possibly causing CD-RW to take longer 
time to read.

•  In this manual, “file” and “track” are interchangeably 

used for MP3/WMA operations.

POWERED WOOFER CD SYSTEM
RV-NB52B/RV-NB50

Front view/Face

Side view/Côté

15 cm
(5 15/16”)

10 cm
(3 15/16”)

Caution: Proper Ventilation
To avoid risk of electric shock and fire, and to prevent 
damage, locate the apparatus as follows:
1 Front:
  No obstructions and open spacing.
2  Sides/ Top/ Back:
  No obstructions should be placed in the areas shown by 

the dimensions below.

3 Bottom:
  Place on the level surface. Maintain an adequate air path 

for ventilation by placing on a stand with a height of 
10 cm (3 15/16”) or more.

Attention: Aération correcte
Pour prévenir tout risque de décharge électrique ou 
d’incendie et éviter toute détérioration, installez l’appareil 
de la manière suivante:
1 Avant:
  Bien dégagé de tout objet.
2 Côtés/dessus/dessous:
  Assurez-vous que rien ne bloque les espaces indiqués sur 

le schéma ci-dessous.

3 Dessous:
  Posez l’appareil sur une surface plane et horizontale. 

Veillez à ce que sa ventilation correcte puisse se faire en 
le plaçant sur un support d’au moins dix centimètres de 
hauteur.

Thank you for purchasing a JVC product.

Before operation, please read the instructions carefully.

15 cm
(5 15/16”)

15 cm
(5 15/16”)

15 cm
(5 15/16”)

15 cm
(5 15/16”)

10 cm
(3 15/16”)

INSTRUCTIONS

LVT2062-001C[J/C]
0110YOMMDWBET

EN

©2009 Victor Company of Japan, Limited

For customer use:
Enter below the Model No. and Serial No. which are 
located either on the rear, bottom or side of the 
cabinet. Retain this information for future reference.

Model No.

Serial No.

REFERENCES

Blower

Lens

Battery compartment

R20 (SUM-1)/D(13D)
(not supplied)

Power cord 

(supplied)

AC outlet

R6(SUM-3)/AA(15F) 
(not supplied)

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7

8

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3

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9

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2

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