JVCKENWOOD VCB008 POWERED WOOFER CD SYSTEM User Manual RV NB90 J indd
JVC KENWOOD Corporation POWERED WOOFER CD SYSTEM RV NB90 J indd
Contents
- 1. User Manual 1
 - 2. User Manual 2
 
User Manual 1

POWERED WOOFER CD SYSTEM
RV-NB90B
LVT2347-002A
[J]
INSTRUCTIONS
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.
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2
Front view
Side view
Introduction
Auto power save function
When no operation is done in certain 
situations for 30 minutes, the System turns off 
automatically. This function is on at the initial 
setting. For details, refer to "Auto power save 
mode." (page 11)
In this manual…
The remote control buttons are used for • 
explaining the operations unless mentioned 
otherwise. However, if the System has 
buttons with the same or similar names, they 
can also be used for the operations.
In this manual, “iPod” means iPod, iPod touch • 
and iPhone device. When iPod touch or 
iPhone device is specifically referred to, “iPod 
touch” or “iPhone” is used.
In this manual, “file“ and “track“ are used • 
interchangeably.
Notes on using the System
•  Do not leave the front door open.
•  Do not press down on the front door 
when it is open as the System could fall 
and possibly cause an injury.
Notes on installation
Select a place which is level, dry and neither • 
too hot nor too cold—between 5˚C and 35˚C 
(41°F and 95 °F).
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 
indicated by the dimensions in the illustration 
below.
3 Bottom:
  Place on a level surface. Maintain an adequate air 
path for ventilation by placing on a stand with a 
height of 10 cm 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  Flancs/ Dessus/ Arrière: Aucun obstacle ne 
doit être placé dans les zones indiquées par les 
dimensions dans l’illustration.
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.
Rear of the 
System
15 cm
(5 15/16”)
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”)
10 cm
(3 15/16”)
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3
Contents
Introduction  ............................................... 2
Preparation  ................................................ 4
Accessories  .........................................................4
Inserting batteries  ...........................................4
Carrying this System  .......................................5
Index of parts and controls  ....................... 6
Front of the System  .........................................6
Rear of the System  ...........................................7
Display window  ................................................7
Remote control  .................................................8
Connections  ............................................... 9
Connecting a monitor display  ....................9
Connecting headphones  ..............................9
Connecting the power cord  .........................9
Basic operations  ....................................... 10
Turning on the System ................................. 10
Setting the Clock  ........................................... 10
Displaying the clock ...................................... 10
Getting started  .............................................. 10
FM .............................................................. 12
Listening to FM stations .............................. 12
Playing back a disc/USB device  .............. 13
Preparation  ..................................................... 13
Playback  ........................................................... 13
Program playback  ......................................... 14
Random playback  ......................................... 15
Repeat playback  ............................................ 15
iPod  ........................................................... 16
Connecting iPod  ........................................... 16
Playback  ........................................................... 17
Shuffle playback  ............................................ 17
Repeat playback  ............................................ 17
iPod menu operation  .................................. 17
Viewing video/picture of iPod .................. 17
External device  ......................................... 18
Listening to an external device  ............... 18
Metronome  ............................................... 19
Using the metronome function  ............... 19
Bluetooth  .................................................. 20
Registering a Bluetooth device for the 
first time  ........................................................... 20
Registering other Bluetooth devices  ..... 21
Connecting a microphone/guitar  ........... 22
Microphone/guitar mixing  ........................ 22
Adding a distortion effect  ......................... 22
Recording on a USB device ...................... 23
Recording discs  ............................................. 23
Recording other sources  ............................ 24
Deleting a track .............................................. 24
Using the timer  ........................................ 25
Setting the sleep timer  ............................... 25
Setting the daily timer  ................................ 25
Setting the recording timer  ...................... 26
Maintenance ............................................. 27
Trademarks ............................................... 27
About discs/files  ...................................... 28
Playable discs/files ........................................ 28
Important for USB mass storage class 
devices  .............................................................. 28
Checking the type of your iPod  ............... 29
About SCMS (Serial Copy Management 
System)  ............................................................. 29
Troubleshooting  ...................................... 30
Specifications  ........................................... 32
Precautions  .............................................. 34
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4
Accessories
Check that you have all the following items, 
which are supplied for the system.
Power cord (1)• 
Remote control (1)• 
Shoulder strap (1)• 
Buckle (2)• 
Stopper (2)• 
If any of these items are missing, contact your 
dealer immediately.
Inserting batteries
Main unit
Match the polarities (+ and –) of the batteries.
Remote control
Match the polarities (+ and –) of the batteries.
Preparation
•  If the range or effectiveness of the remote 
control decreases, replace the batteries.
NOTE
•  Store the battery in a place where children 
cannot reach. If a child accidentally 
swallows the battery, consult a doctor 
immediately.
•  The power will not be supplied through 
the batteries when the power is supplied 
through the AC outlet on the System.
•  The battery is consumed more quickly 
than usual when operating the System 
continuously or operating it in a cold place.
•  When the power is supplied using the 
batteries, the display will be blank and 
STANDBY indicator will turn off when the 
System is turned off (on standby).
CAUTION
To avoid battery leakage or explosion, handle 
batteries properly.
•  If you are not going to use this System 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 System, clean the 
System completely.
Battery compartment
R20 (SUM-1)/D (13D) x 10
(not supplied)
R6P (SUM-3)/AA (15F)
(not supplied)
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5
Carrying the System
Using the carrying handles
Be sure to hold both handles when you carry 
the System.
If you carry the System by only one handle, 
the other end may drag on the ground and be 
damaged.
NOTE
•  Remove a disc, USB device or iPod from the 
System.
•  Disconnect all the cords from the System.
•  The System is not waterproof or dust proof.
Using the shoulder strap
Attach the supplied shoulder strap (adjustable 
in length) to each end of the System as 
illustrated below.
Stopper
Stopper 
(supplied)
Shoulder strap
Shoulder strap
Buckle
Shoulder strap 
(supplied)
Buckle 
(supplied)
Front side
Carrying handle
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6
Index of parts and controls
~
~
@
@
$
$
%
%
!
!
#
#
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
0
0
-
-
=
=
^
^
&
&
1  TUNER/AUDIO IN button
2 USB 6 button
3  STANDBY  indicator
4 STANDBY/ON   button
5  Shoulder strap hook
6  SUPER WOOFER VOLUME +/−
  DISTORTION LEVEL +/−
7  Disc compartment door
8 iPod 6 button
9 VOLUME +/−
0  Shoulder strap hook
- CD 6 button
=  REC button/REC indicator
~ USB connector/cover
!  Bluetooth PAIRING button/Bluetooth 
indicator
@ METRONOME 6 button
#  Connector for iPod/Front door
$ 4/TEMPO − button
%  Remote control sensor
^ 7 button
& ¢/TEMPO + button
Front of the System
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7
HIGH
A.P.S.
1
1
1
1
2
2
2
2
3
3
3
3
4
4
4
4
5
5
5
5
6
6
6
6
7
7
7
7
8
8
8
8
9
9
9
9
0
0
-
-
=
=
1 Timer indicators
  (timer), PLAY, REC
2 SLEEP indicator
3  A.P.S. (auto power save) indicator
4 CLOCK indicator
5 iPod indicator
6  FM mode indicators
 STEREO, MONO
7 HIGH indicator
8 Repeat indicators
 ,  ALL,  GROUP
9 Main display
0  PRGM (program) indicator
- RANDOM indicator
=  Frequency unit indicator
1  AC IN jack
2  DC IN jack
3  AUDIO IN jack
4 PHONES jack
5  VIDEO OUT jack
6 LEVEL +/−
7 GUITAR/MIC switch
8 INPUT jack
9  FM telescopic antenna
Rear of the System
Display window
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8
Index of parts and controls
Remote control
1
1
2
2
3
3
4
4
5
5
6
7
8
9
9
0
-
=
~
!
@
#
$
%
^
&
*
(
1  Number buttons (pages 12, 13)
2  MENU button (page 17)
3  Multi control buttons (pages 12-21, 23-25)
 UP, DOWN • 
 •  4/1, SET, ¡/¢
4  Source buttons (pages 12-21, 23)
 TUNER, USB •  6, CD 6, iPod 6, 
AUDIO IN, METRONOME 6, 
Bluetooth 6
5  FM MODE button (page 12)
6  PLAY MODE button (pages 15, 17)
7  REC/DELETE button (pages 23, 24)
8  REC SPEED button (page 23)
9  DISTORTION LEVEL +/− buttons (page 22)
0 STANDBY/ON   button (page 10)
-  DISPLAY button (page 11)
=  SLEEP button (page 25)
~  A.P.S. (auto power saving) button 
(page 11)
!  CLOCK/TIMER button (pages 10, 25, 26)
@  CANCEL button (pages 10, 15, 25, 26)
# 7 button (pages 15, 21-23)
$  SOUND MODE button (page 11)
%  REPEAT button (pages 15, 17)
^  MUTING button (page 11)
&  REC MODE button (page 23)
*  VOLUME +/− buttons (page 10)
(  SUPER WOOFER VOLUME +/− buttons 
(page 10)
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9
Connections
Connecting a monitor display
In order to view picture/video from iPod on 
a monitor display, connect a monitor display 
using a composite video cord (page 17).
NOTE 
•  The power can also be supplied through the 
batteries (page 4).
•  When the System is turned off using the 
STANDBY/ON   button, the standby 
mode is activated and the STANDBY lamp 
lights in red.
•  A small amount of power is always 
consumed even while on standby.
CAUTION
•  Only use JVC power cord provided for this 
System to avoid malfunction or damage to 
the System. 
•  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 System 
is not in use for an extended period of time.
Unplug the AC power cord from the System 
to supply the power through the batteries 
in the battery compartment; otherwise, the 
System does not work.
Battery compartment
Power cord 
(supplied)
AC outlet
Connecting headphones
Be sure to turn down the volume before 
connecting or putting on the headphones.
•  Connecting the headphones deactivates the 
speakers.
NOTE 
If iPod is selected as the source, no sound is 
heard from headphones.
Headphones
(not supplied)
Stereo 
mini 
plug
Monitor
(not supplied)
Composite 
video cord
(not supplied)
Connecting the power cord
Connect the power cord to a wall outlet only 
after all other connections have been made.
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10
NOTE
•  About two hours after you disconnect the 
AC power cord, the set time will be reset.
•  When the power is supplied through the 
batteries, the clock does not appear on the 
display when the System is turned off.
Getting started
To adjust the volume
You can adjust the volume level between MIN, 
1 to 29, MAX.
To adjust the super woofer volume
You can adjust the super woofer volume level 
between BASS 1 and BASS 6.
NOTE
If you have adjusted the distortion effect 
before, press and hold 7 to change to super 
woofer volume adjustment (page 22).
Basic operations
Main unit
Remote control
Main unit
Remote control
Turning on the System
Press STANDBY/ON  .
The STANDBY lamp goes off.
Press the button again to turn off the System.
NOTE
When the power is supplied using the 
batteries, the System is turned on by pressing 
 or source buttons on the main unit. You 
cannot turn on the System using the remote 
control.
Setting the Clock
1.  Press CLOCK/TIMER repeatedly* to 
select the clock.
AM  12:00
CLOCK
When setting for the first time, press CLOCK/* 
TIMER once.
2.  Press UP or DOWN to adjust the hour.
•  When you press and hold the button, 
the hour digit changes continuously.
3. Press SET.
4.  Repeat 2 and 3 to adjust the minute.
•  To go back to the hour setting, press 
CANCEL.
Displaying the clock
Press DISPLAY.
•  Each time you press the button, the 
clock and normal indicator changes 
alternately.
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11
To turn o  the sound temporarily 
Press MUTING.
To restore the sound, press MUTING again or 
adjust the volume.
Sound mode
Sound modes can be selected to enhance the 
type of music being played.
Press SOUND MODE to select the sound 
mode.
Each time you press the button, the sound 
mode changes as follows:
BEAT:  Select this for music with a heavy 
beat, such as rock and dance music.
POP:  Select this for light music including 
popular and vocal music.
CLEAR: Select this for crisp and clear sounding 
music.
FLAT:  Select this to cancel the sound mode.
NOTE
The sound mode setting also affects the 
sound through the headphones.
Auto power save mode
Each time you press A.P.S., the auto power 
save function switches on and off.
This function is on at the initial setting.
A.P.S.
If no operation is performed for 30 minutes 
in the following situations, the System turns 
off automatically. Before the System turns off, 
“A.P.S.” blinks on the display.
The volume level is set to MIN or Muting is • 
activated.
CD, USB or METRONOME is selected as • 
the source, playback is stopped, and no 
microphone or guitar is connected.
iPod, Bluetooth or USB is selected as the • 
source, no device is connected, and no 
microphone or guitar is connected.
Display information
Each time you press the button, the display 
information switches depending on the 
source.
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12
Listening to FM stations
1.  Press TUNER repeatedly to select “FM.”
FM    875  
MHz
2.  Select the station.
•  Press and hold 4/1 or ¡/¢ to 
change the frequency continuously until 
a station of sufficient signal strength is 
tuned in.
Adjusting the antenna
Adjust the FM telescopic antenna’s length, 
angle and direction until the best reception is 
obtained.
To preset stations
You can preset up to 30 FM stations manually.
1.  Tune in to a station you want to preset.
2. Press SET.
FM     P-01
3.  Use the number buttons to select the 
preset number you want to store.
4.  Press SET to store the station.
Main unit
Remote control
FM
To tune in to a preset station
Each time you press the button, you can select 
a preset station.
You can select the preset station directly • 
using the number buttons.
To improve the FM reception
When an FM stereo (FM) broadcast is hard to 
receive or noisy, select the monaural reception 
(MONO) mode.
Press FM MODE.
•  To restore stereo reception, press FM MODE 
again.
(Press repeatedly)
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13
Playing back a disc/USB device
Preparation
Load a disc or connect a USB device.
Playback
Press CD 6 or USB 6.
          or          
Display during playback
  10   0:45
Disc
USB device
or
To stop playback
Press 7.
To pause
Press CD 6 or USB 6.
To cancel pause, press the button again. • 
Playback continues from the point where it 
was paused.
To select a track
Press 4/1 or ¡/¢ .
Press •  ¡/¢ once to skip to the beginning 
of the next track.
Press •  4/1 to skip to the beginning of 
the track being played.
Press 4/1 twice quickly to skip to the 
beginning of the previous track.
To select a track using the remote control
Examples:
To select number 5, press 5.• 
To select number 15, press +10 then 5.• 
To select number 20, press +10 once, then • 
10.
To select number 125, press +100, +10, +10 • 
then 5.
To fast forward/reverse
Press and hold 4/1 or ¡/¢ during 
playback.
Current track number Playback time
USB cord
(not supplied)
USB memory
(not 
supplied)
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14
To select a group (for MP3/WMA)
Press UP or DOWN.
Press UP to skip to the next group.• 
Press DOWN to skip to the previous group.• 
NOTE
•  When you have stopped playback of an 
MP3/WMA file by pressing 7, pressing 6 
will start playback from the beginning of 
the stopped file (Resume playback).
•  To cancel the Resume playback, press 7 
when playback is stopped.
•  Resume playback is canceled in the 
following situations:
 -  when program playback is activated
 -  when the disc compartment door is 
opened
 -  when another source is selected
Program playback
You can program up to 32 tracks from a disc 
or a USB device in any desired order including 
the same tracks.
NOTE
•  While making a program, you cannot 
specify a group number to select a track.
1. Press CD 6 or USB 6.
2. Press 7 to stop playback.
3.  Press PLAY MODE.
 ‒ ‒    P‒01
PRGM
4.  Press the number buttons to select the 
track to program.
5. Press SET.
6.  Repeat step 4 and 5 to select other 
tracks for the program.
7. Press CD 6 or USB 6.
Playback starts.
Playing back a disc/USB device
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15
To con rm the programmed tracks
While program playback is stopped, press  UP 
or DOWN repeatedly.
The tracks in the program will successively 
appears on the display in the programmed order.
To add a track to the end of the program, • 
press the number buttons to select the track 
and then press SET.
To delete tracks in the program
While 
program playback is
 stopped, press 
CANCEL.
Each time you press the button, the last track • 
in the program is erased.
The program is cleared in the following • 
situations:
- when the power is turned off
- when the disc compartment door is 
opened
- when the USB device is disconnected
- when another source is selected
- when program mode is exited
To exit from the program playback
While stopped, press PLAY MODE. 
The “PRGM” indicator goes off.
Random playback
You can play all the tracks, on the disc or USB 
device in random order.
Press PLAY MODE to select “RANDOM” 
during playback.
  10   0:45
RANDOM
•  During random playback, you cannot go 
back to the previous track even by pressing 
4/1 repeatedly.
To exit from the random mode
Press PLAY MODE during random playback.
The “RANDOM” indicator goes off.
Random playback is also canceled when you • 
stop playback.
Repeat playback
You can repeat a track or tracks on the disc or 
USB device as many times as you like.
Press REPEAT.
Each time you press the button, the play mode 
changes as follows:
NOTE
•  If pressed during random playback, random 
playback is canceled.
For CD:
 \ ALL \ canceled \ (back to the beginning)
• : Repeats the current track.
• ALL: Repeats all the tracks on the 
disc.
For MP3/WMA files:
 \  GROUP \  ALL \ 
canceled
 \ 
(back to 
the beginning)
• : Repeats the current track.
• GROUP: In normal play mode, 
repeats all the tracks in a 
group.
• ALL: Repeats all the tracks on 
the disc or USB device.
NOTE
•  During program playback, only   and  ALL 
can be selected.
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16
You can operate iPod through the System.
See page 29 for playable iPod devices.
NOTE
•  JVC is not responsible for any loss of or 
damage to iPod that might result from the 
use of this System.
•  Do not connect or disconnect iPod when 
the System is turned on.
•  Do not carry the System with iPod 
connected. It might cause damage to the 
dock or you might drop iPod.
•  iPod is charged through the dock when 
the System is turned on. (When the power 
is supplied through the batteries, iPod is 
charged only when iPod is selected as the 
source.)
•  Depending on the type of iPod, iPod may 
operate differently.
•  Depending on the type of iPod, you can 
operate the menu only on the screen of 
iPod.
•  Operate iPhone or iPod touch itself in the 
following cases:
–  When operating the home button.
–  When selecting application icons on the 
home screen.
–  When dragging the slider.
•  Sound distortion may occur when 
playing back audio sources with high 
recording levels. If distortion occurs, it is 
recommended to turn off the equalizer of 
iPod.
•  For information on operating iPod, see the 
instruction manual for iPod.
•  Take the protect case of iPod off before 
connecting.
•  Connect iPod firmly.
•  Keep iPod in a straight position while 
connecting/disconnecting it.
•  Do not touch or hit the terminal pins of 
iPod or connector pins in the dock for iPod 
directly. Doing so might cause damage to 
the connector pins.
•  You cannot send any data to iPod from the 
System.
Connecting iPod
NOTE
•  It is not necessary to use the dock adaptor 
for some iPod models (iPod nano 6th 
generation, etc.).
To detach the dock adaptor
Pull up the dock adaptor with your fingernail 
or a sharp pointed tool inserted to the slot.
•  Be careful not to injure your fingertips or 
damage the terminal of the dock.
Front door
Open the front door
Dock adaptor 
(supplied with iPod 
or sold by Apple 
Inc.)
iPod
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17
Playback
Press iPod 6.
Each time you press the button, playback is 
started/paused.
    iPod
iPod
To select a track
Press 4/1 or ¡/¢.
Press •  ¡/¢ once to skip to the beginning 
of the next track.
Press •  4/1 to skip to the beginning of 
the track being played.
Press 4/1 twice quickly to skip to the 
beginning of the previous track.
To fast forward/reverse
Press and hold 4/1 or ¡/¢ during 
playback.
Shuffle playback
You can play the tracks on iPod in random 
order.
Press PLAYMODE.
Each time you press the button, the shuffle 
mode turns on/off.
Repeat playback
Press REPEAT.
Each time you press the button, the repeat 
mode changes.
To exit from the repeat mode
Press REPEAT repeatedly until the repeat 
mode is cancelled.
iPod menu operation 
1.  Press MENU to display the menu.
Each time you press the button, the 
previous menu is displayed.
2.  Press UP or DOWN to select an item. 
3. Press SET.
Viewing video/picture of iPod
While the System is turned off...
Press and hold iPod 6.
VOUT OFF
Each time you press the button, the indicator 
changes alternately as follows:
VOUT ON: View video/picture from iPod on • 
the monitor.
VOUT OFF: View video/picture on iPod.• 
NOTE
•  You can change the setting only on the main 
unit.
•  You cannot change the setting when the 
power is supplied through the batteries.
Main unit
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18
Listening to an external device
1.  Set the volume level of the System to 
minimum.
2.  Connect the external device.
Refer also to the instruction manual for the 
external device.
3.  Press AUDIO IN to select ”AUDIO IN.”
4.  Start playback of the external device.
5.  Adjust the volume of the System and of 
the external device.
Adjusting the audio input level
Adjust the audio input level when the volume 
of the external device is too low compared to 
other sources.
When AUDIO IN is selected as the source, 
press SET. 
Each time you press the button, the input level 
changes as follows:
LEVEL1 \ LEVEL2 \ LEVEL3 \ (back to the 
beginning)
A higher number indicates a greater increase 
in input level.
The initial setting is "LEVEL 3."
Main unit
(Press repeatedly)
Remote control
External device
External 
device(not 
supplied)
Headphone 
jack, etc.
Stereo mini 
plug cord
(not 
supplied)
RV-NB90_J.indd   18RV-NB90_J.indd   18 12.3.30   2:21:39 PM12.3.30   2:21:39 PM

19
Using the metronome function
You can use the System as a metronome. You 
can set the tempo and rhythm separately for 
your guitar practice, etc.
1. Press METRONOME 6.
Rhythmical beeps are emitted from the 
speakers.
Each time you press the button, beeps are 
started/paused.
The beeps are also canceled when you 
press 7.
2. Press 4/1 or ¡/¢ to select the 
tempo.
•  You can select the tempo from 30 to 
250.
T120  B4
3.  Press UP or DOWN to select the rhythm.
•  You can select from 1 to 7 beat.
Metronome
tempo beat
RV-NB90_J.indd   19RV-NB90_J.indd   19 12.3.30   2:21:39 PM12.3.30   2:21:39 PM

20
You can listen to music from a Bluetooth 
device through the System.
NOTE
•  In order to use these functions, the device 
must be compatible with AVRCP and A2DP 
profiles.
•  Some Bluetooth devices may not be 
available to the System.
Registering a Bluetooth device for 
the first time
1.  Turn the System on.
2. Press Bluetooth 6.
PAIRING
CONNECT
BT  READY
• 
While "CONNECT" is blinking, you cannot 
perform any operations the System 
except for turning the System off.
3.  Perform the pairing operation on the 
target Bluetooth device.
For information on operating the target 
Bluetooth device, see the instruction manual 
for the Bluetooth device.
Select “RV-NB90” from the list.
When the target device requests the 
passkey during pairing operation, enter 
“0000.”
The pairing is completed and the target 
Bluetooth device is connected to the System 
automatically. The Bluetooth indicator lights.
    B  T
Main unit
Remote control
 (after 5 to10 seconds)
*
Bluetooth
4.  Start playback of the target Bluetooth 
device.
The sound from the Bluetooth device is 
emitted from the System.
Playback may start automatically with 
some Bluetooth devices.
NOTE
•  The pairing is necessary only when 
connecting for the first time.
* The Bluetooth device last used will be 
connected automatically by turning on 
the Bluetooth function of the device while 
"CONNECT" blinks on the display window. 
To re-connect another Bluetooth device, 
operate the device to connect while "BT 
READY" appears on the display window.
To control the Bluetooth device from 
the System
operation button
Play/Pause Press Bluetooth  6.
Each time you press 
the button, playback 
is started/paused.
Stop Press 7.
Skip Press 4/1 or 
¡/¢.
Fast Forward/Fast 
Rewind
Press and hold 
4/1 or ¡/¢.
RV-NB90_J.indd   20RV-NB90_J.indd   20 12.3.30   2:21:40 PM12.3.30   2:21:40 PM

21
Registering other Bluetooth devices
1.  Press and hold Bluetooth for more than 
2 seconds.
Canceling of connection starts.
DISCNECT
"BT READY" appears when the connection 
has been canceled.
2.   Perform the pairing operation on the 
target Bluetooth device.
For information on operating the 
Bluetooth device, see the instruction 
manual for the Bluetooth device.
Select “RV-NB90” from the list.
When the target device requests the 
passkey during pairing operation, enter 
“0000.”
The pairing is completed and the 
Bluetooth device is connected 
automatically. The Bluetooth indicator 
lights.
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22
Connecting a microphone/guitar
Microphone/guitar mixing
Using a microphone or a guitar, you can mix 
its sound with a source sound.
CAUTION
DO NOT connect a bass guitar to the MIC/
GUITAR INPUT jack, as it may damage the 
System.
1.  Make sure the MIC/GUITAR selector 
switch on the rear of the System is 
properly set.
2.  Turn the MIC/GUITAR LEVEL control 
fully counterclockwise.
3.  Connect a microphone or a guitar to the 
MIC/GUITAR INPUT jack on the rear of 
the System.
4.  Start playback of the source.
5.  Turn the MIC/GUITAR LEVEL control to 
adjust the volume.
Adding a distortion effect
You can add a distortion effect for a guitar.
You can select the level from 0 (OFF) to 8.
NOTE
When you increase the level, the amount 
of noise also increases. This is due use of an 
analog circuit, and is not malfunction.
Using the remote control
Press DISTORTION LEVEL + or DISTORTION 
LEVEL -.
D  LVL  1
Using the main unit
1.  Press and hold 7 to select "D LVL".
Each time you press and hold 7, the 
function changes between super woofer 
level ("SW VOL" appears on the display 
window) and distortion level ("D LVL" 
appears on the display window).
2. 
Guitar Microphone
(Turn)
Microphone or guitar
(not supplied)
φ 6.3 monaural cable
(not supplied)
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23
Recording on a USB device
You cannot record sound while the sleep timer 
(page 25) is activated.
Recording discs
You can record a CD to a USB device in two 
ways, digital recording and analog recording. 
Generally, you can obtain better sound quality 
by using digital recording than by using 
analog recording.
However, by using analog recording, you can 
record sound from a microphone or guitar 
connected to the System at the same time 
(mixing recording).
Before recording, connect the USB device to 
the System.
NOTE
Discs other than audio CD such as MP3/WMA • 
discs cannot be recorded. 
The volume setting and sound mode have • 
no effect on recording.
You can not activate random playback or • 
repeat playback during recording.
The file is stored in MP3 format (bitrate: 192 • 
kbps).
Do not shake the System during the • 
recording; otherwise the tracks might not be 
recorded properly.
To record an audio CD
1. Press CD 6.
2.   Press 7 to stop playback.
3.  Press REC SPEED to select the recording 
speed.
    HIGH
HIGH
Each time you press the button, the 
speed switches between normal speed 
(NORMAL) and double speed (HIGH).
If you want to listen to the music during 
recording, select normal speed.
•  When you perform analog recording, 
this step is not necessary. (The songs are 
recorded at normal speed.)
4. Press REC/DELETE. 
Digital recording starts from the first track 
to the last track. 
•  When you perform analog recording, 
press and hold REC/DELETE. "ANLG REC" 
blinks. While blinking, press REC/DELETE 
to start recording.
RECSTART
The REC indicator lights during the 
recording.
In the “CD” folder in the “MUSIC” folder, a • 
folder such as “CD001” is created where the 
music files are stored. 
Recording stops automatically when • 
playback stops.
To stop recording manually, press •  7.
Other recording
To record from the current track to the last • 
track, press 4/1 or ¡/¢ while 
stopped to select the track and then press 
REC/DELETE.
To record only the current track, press REC/• 
DELETE (for digital recording) or press and 
hold REC/DELETE (for analog recording) 
during playback.
To record tracks in the programmed order, • 
stop program playback (page 14) and then 
press REC/DELETE (for digital recording) 
or press and hold REC/DELETE (for analog 
recording).
Main unit
Remote control
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24
Recording other sources
You can record an FM broadcast, metronome  
or an external device.
You can divide a file according to the marking 
setting (see below).
You can record sound from a microphone or 
guitar connected to the System at the same 
time.
The music files are stored in the appropriate • 
folder ( “FM”, “AUDIO IN” and “METRONOME” 
folder) in the “MUSIC” folder.
Recording stops automatically when the file • 
size exceeds 2 GB (about 20 hours).
To select the marking setting
You can select the way files are divided.• 
Select the setting before recording.• 
Press REC MODE when TUNER (FM), AUDIO 
IN or METRONOME is selected as the 
source.
Each time you press the button, the setting 
changes.
MANUAL divides a file when you press SET.
TIME divides a file automatically every 
5 minutes.
To record FM stations
1.   Press TUNER.
2.   Tune into the station you want to 
record.
3.   Press REC/DELETE.
RECSTART
Recording starts.
The REC indicator lights while recording.
4.   Press 7 to stop recording.
To record an external device
1.  Press AUDIO IN.
Before recording, connect the external 
device to the System. 
2. Press REC/DELETE.
Recording starts.
3.  Start playback of the external device.
The REC indicator lights while recording.
4. Press 7 to stop recording.
To record the metronome
1.   Press METRONOME.
Adjust the tempo and rhythm if necessary 
(page 19).
2.   Press REC/DELETE.
Recording starts.
The REC indicator lights while recording.
3.   Press 7 to stop recording.
Deleting a track
You can delete a track recorded on a USB • 
device.
You can not restore deleted files.• 
1.  Start playback of the track you want to 
delete.
2. Press REC/DELETE.
PUSH  SET
3. Press SET.
“DELETE” appears on the display window, 
and deleting starts.
“FINISH” appears when deleting is 
complete.
Recording on a USB device
Main unit
Remote control
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25
Using the timer
Setting the sleep timer
Press SLEEP.
SLEEP  10
SLEEP
Each time you press the button, the shut-
off time (in minute) changes as follows:
10 \ 20 \ 30 \ 60 \ 90 \ 120 \ 150 
\ 180 \OFF \ (back to the beginning)
To check the remaining time until the 
System shuts off, press SLEEP once.
To cancel the sleep timer, press SLEEP 
repeatedly to select “OFF.”
Setting the daily timer
Using the daily timer (Playback timer), you can 
wake up with your favorite music.
NOTE
•  Set the clock before setting the daily timer 
(page 10).
•  Tune into an FM station, load a disc, or 
connect a USB device/iPod to the System, 
and make sure that the source works 
properly beforehand.
•  Preset the desired FM station before setting 
the daily timer (page 12).
•  Daily timer does not work when the power 
is supplied through the batteries. Supply 
the power through an AC outlet.
1.  Press CLOCK/TIMER repeatedly until 
the “PLAY TMR” appears on the display 
window.
PLAY  TMR
2.  Press CLOCK/TIMER again.
ONAM12:00
3.  Press UP or DOWN to adjust the hour of 
the starting time.
•  When you press and hold the button, 
the hour digit changes continuously.
4. Press SET.
5.  Repeat 3 and 4 to adjust the minute of 
the starting time, the hour and minute 
of the finish time, and select the source 
and the volume.
•  When FM tuner is selected as the source, 
select a preset number using UP or 
DOWN and then press SET.
•  When CD or USB is selected as the 
source, select a track number using UP 
or DOWN and then press SET.
6. Press   to turn off the System.
•  The daily timer works only when the 
System is turned off.
•  While the timer is set, the timer indicator 
 lights up.
•  While the timer is working,   
flashes.
•  Once set, the daily timer works every 
day.
•  You can not set the same time for the 
starting time and finish time.
To go back to the previous step, press 
CANCEL.
To cancel the daily timer, press CANCEL after 
performing step 1.
To set the daily timer with the same 
settings again after canceling, press SET 
after performing step 1.
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26
Setting the recording timer
You can set the recording timer for FM stations 
or an external device.
NOTE
•  Set the clock before setting the recording 
timer (page 10).
•  Check the reception of the FM station 
and the connection of the external device 
before setting the recording timer.
•  Preset the desired FM station before setting 
the recording timer (page 12).
•  Connect the USB device to the unit before 
setting the recording timer.
•  The recording timer does not work when 
the power is supplied through the batteries. 
Supply the power through an AC outlet.
1. Press CLOCK/TIMER. 
The “REC TMR” appears on the display 
window.
REC  TMR
2.  Press CLOCK/TIMER again.
ONAM12:00
3.  Press UP or DOWN to adjust the hour of 
the starting time.
•  When you press and hold the button, 
the hour digit changes continuously.
4. Press SET.
5.  Repeat 3 and 4 to adjust the minute of 
the starting time, the hour and minute 
of the finish time, and select the source 
and the volume.
•  When FM tuner is selected as the source, 
select a preset number using UP or 
DOWN and then press SET.
6. Press   to turn off the System.
•  The recording timer works only when 
the System is turned off.
•  While the timer is set, the timer indicator 
lights up.
•  While the timer is working,   
flashes.
•  The recording timer works only once. 
(However, the settings are stored on the 
System.)
•  You can not set the same time for the 
starting time and finish time.
To go back to the previous step, press 
CANCEL.
To cancel the recording timer, after 
performing step 1.
To set the recording timer using the same 
setting again, after performing step 1.
Using the timer
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27
Microsoft and Windows Media are either • 
registered trademarks or trademarks of 
Microsoft Corporation in the United States 
and/or other countries.
“Made for iPod” and “Made for iPhone” • 
mean that an electronic accessory has 
been designed to connect specifically 
to iPod or iPhone, respectively, 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. Please note that the use of this 
accessory with iPod or iPhone may affect 
wireless performance.
iPhone, iPod, iPod classic, iPod nano and • 
iPod touch are trademarks of Apple Inc., 
registered in the U.S. and other countries. 
The Bluetooth® word mark and logos are • 
registered trademarks owned by Bluetooth 
SIG, Inc. and any use of such marks by JVC 
KENWOOD Corporation is under license. 
Other trademarks and trade names are those 
of their respective owners.
Trademarks
To get the best performance of the System, 
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 System
•  Stains should be wiped off with a soft cloth. 
If the System 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 System 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 substances 
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.
Blower
Lens
Maintenance
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28
About Discs/Files
Playable discs/files
Discs AUDIO CD CD-R CD-RW
Files MP3/WMA
•  Some MP3/WMA files may not 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 system can play back MP3/WMA 
recorded at the following sampling 
frequency and bitrate.
Bitrate: MP3
WMA
32 kbps – 320 
kbps
32 kbps – 320 
kbps
Sampling frequency:
32 / 44.1 / 48 kHz
•  This System cannot play “packet write” discs.
•  This System cannot show the Tag data of 
MP3/WMA.
•  This System can recognize up to 99 folders 
and 999 files on a disc, and up to 300 folders 
and 999 files on a USB device.
Important for USB mass storage 
class devices
For connecting/disconnecting:
•  Disconnect the USB device after stopping 
playback. Disconnecting the USB device 
during recording/playback may cause some 
problem of the USB device and its files. 
•  When connecting with a USB cable, use a 
USB 2.0 cable less than 1 m in length.
•  You cannot connect a computer to the USB 
MEMORY terminal of the System.
•  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.
•  Deactivate the security function of the USB 
device before connecting.
For playing back:
•  The playing order of MP3/WMA files
–  Groups are played in creation order. In 
a group, tracks are played in recording 
order.
–  The playing order may change if you 
change a folder name or file name on the 
PC.
•  You cannot play back a file larger than 2 
Gigabytes. 
•  It is recommended to use USB mass storage 
class devices with 4 GB or less storage 
capacity.
•  If your USB device is partitioned, only the 
first partition is recognized.
•  Some USB devices may not be recognized or 
may not work properly.
•  Copyrighted tracks (WMA-DRM tracks) 
cannot be played back on the System.
•  Electrostatic shock at connecting a USB 
device may cause abnormal playback of 
the device. In this case, disconnect the USB 
device then reset this System and the USB 
device.
•  JVC bears no responsibility for any loss of 
data on the USB mass storage class device 
while using this System.
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29
Checking the type of your iPod
• Compatible iPod:
Made for Audio Video
iPod nano (6th generation)  *
iPod nano (5th generation)
iPod nano (4th generation)
iPod nano (3rd generation)
iPod nano (2nd generation) –
iPod touch (4th generation)
iPod touch (3rd generation)
iPod touch (2nd generation)
iPod touch*2
iPod classic
iPhone 4S
iPhone 4
iPhone 3GS
iPhone 3G
*  Only for still pictures
*2  Only for software version 2.0.0 or later
•  If iPod does not play correctly, update the 
software of iPod to the latest version.
•  For details about updating iPod, check on 
the Apple web site <http://www.apple.
com/>.
About SCMS (Serial Copy 
Management System)
The System uses the Serial Copy Management 
System which allows only first-generation 
digital copies to be made of premastered 
software such as regular CDs.
If you try to record from a duplicated CD-R or 
CD-RW onto a USB device, “SCMS ERR” appears 
on the display.
It should be noted that it may be unlawful 
to re-record pre-recorded tapes, records, or 
discs without the consent of the owner of 
copyright in the sound or video recording, 
broadcast or cable programme and any 
literary, dramatic, musical, or artistic work 
embodied therein.
1st generation 2nd generation
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30
Troubleshooting
If you are having a problem with your System, 
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.
The System turns off automatically.
\ Auto power save function is working. 
Adjustments or settings are suddenly 
canceled before you finish.
\ There is a time limit. Repeat the procedure.
While the power is supplied using the 
batteries, sound from the speakers is 
distorted or too quiet.
\ Batteries are exhausted. Change the 
batteries.
Unable to operate the System from the 
remote control.
\ The path between the remote control and 
the remote sensor on the System is blocked.
\ The batteries are exhausted.
No sound is heard.
\ Adjust the volume.
\ Headphones are connected.
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 facing up.
\ The disc is scratched or dirty.
\ 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.
MP3/WMA groups and tracks are not 
played back as you expect.
\ Playing order may change if you edit a file 
name on the PC.
The disc sound is discontinuous.
\ The disc is scratched or dirty.
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 
System.
iPod Operations
iPod does not play.
\Check the type of your iPod (page29).
\ The battery of iPod is low or exhausted. 
Charge the battery of iPod.
Radio Operations
Hard to listen to broadcasts because of 
noise.
\ The FM antenna is not properly extended 
and positioned.
Timer Operations
Daily timer does not start working.
\ The System is turned on when the on-time 
comes. Timer starts working only when the 
System is turned off.
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31
Bluetooth Operations
Unable to connect a Bluetooth device.
 \The device does not support A2DP.
  A2DP profile is necessary to stream music 
data. Refer to the instruction manual of 
the Bluetooth device.
Unable to operate a Bluetooth device.
\The device does not support AVRCP.
  AVRCP profile is necessary to control 
the device though the System. Refer to 
the instruction manual of the Bluetooth 
device.
If the System does not work correctly after 
these procedures… 
The System works using a built-in 
microprocessor. If buttons are not operative, 
disconnect the AC power cord from the wall 
outlet, wait for a while, then connect the 
cord again.
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32
Specifications
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: Telescopic antenna
Bluetooth
Bluetooth version: Bluetooth 2.1 + EDR 
certified
Output power: Bluetooth power 
class 2
Service area: max. 10 m (33 ft)*
* Communication range may vary 
depending on the environmental conditions.
Frequency band: 2.4 GHz (2.4000 GHz – 
2.4835 GHz)
Bluetooth profile: A2DP (Advanced 
Audio Distribution 
Profile), AVRCP 
(Audio/Video Remote 
Control Profile)
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:
7 Ω
Output power: 40 W 
Input terminal
•  USB MEMORY: Playable files: 
MP3, WMA
• Compatible with 
USB 2.0 Full-Speed.
• Compatible device: 
Mass storage class
• Compatible system: 
FAT16, FAT32
• Output power:
DC 5 V   500 mA
•  Dock for iPod:
• AUDIO IN:
Input Sensitivity / 
Impedance (1 kHz):
• MIC/GUITAR:
• DC IN:
DC 5 V   1 A
φ3.5
•  LEVEL 1: 500 mV / 
47 kΩ
•  LEVEL 2: 250 mV / 
47 kΩ
•  LEVEL 3: 125 mV / 
47 kΩ
Switchable
• MIC: 200 Ω - 2 kΩ 
(φ6.3)
•  GUITAR: 100 kΩ - 1 
MΩ (φ6.3)
DC 12 V, 2 A
Output terminal
• PHONES:
• VIDEO OUT
(For iPod):
φ3.5
32 Ω - 1 kΩ
15 mW / ch output 
into 32 Ω
Composite
Power supply
• AC:
• DC:
AC 120 V  , 60 Hz
DC 15 V (R20 (SUM-
1)/D (13D)-size 
batteries x 10)
External DC 12 V
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33
Power consumption: When using an AC 
outlet
  28 W (at operation)
Less than 0.50 W (on 
standby)
When using DC IN
  2 A (power on 
mode)
Dimensions: 666 mm (26 1/4”) x 
235 mm (9 5/16”) 
x 240 mm (9 1/2”) 
(W/H/D)
Mass: Approx. 7.2 kg (15.9 
lbs) (without batteries 
stored in the battery 
compartment)
Design and speci cations are subject to 
change without notice.
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34
This equipment complies with FCC/IC 
radiation exposure limits set forth for an 
uncontrolled environment and meets 
the FCC radio frequency (RF) Exposure 
Guidelines in Supplement C to OET65 and 
RSS-102 of the IC radio frequency (RF) 
Exposure rules. This equipment has very 
low levels of RF energy that it deemed 
to comply without maximum permissive 
exposure evaluation (MPE). But it is 
desirable that it should be installed and 
operated keeping the radiator at least 20cm 
or more away from person’s body (excluding 
extremities: hands, wrists, feet and ankles).
Cet équipement est conforme aux 
limites d’exposition aux rayonnements 
énoncées pour un environnement 
non contrôlé et respecte les règles les 
radioélectriques (RF) de la FCC lignes 
directrices d'exposition dans le Supplément 
C à OET65 et d'exposition aux fréquences 
radioélectriques (RF) CNR-102 de l'IC. Cet 
équipement émet une énergie RF trés faible 
qui est considérée conforme sans évaluation 
de l'exposition maximale autorisée. 
Cependant, cet équipement doit être 
installé et utilisé en gardant une distance de 
20 cm ou plus entre le dispositif rayonnant 
et le corps (à l'exception des extrémités : 
mains, poignets, pieds et chevilles).
(For Canada)
This device complies with Industry Canada 
license-exempt RSS standard(s). Operation 
is subject to the following two conditions: 
(1) this device may not cause interference, 
and (2) this device must accept any 
interference, including interference that 
may cause undesired operation of the 
device.
(Pour le Canada)
Le présent appareil est conforme aux CNR 
d'Industrie Canada applicables aux appareils 
radio exempts de licence. L'exploitation est 
autorisée aux deux conditions suivantes: (1) 
l'appareil ne doit pas produire de brouillage, 
et (2) l'utilisateur de l'appareil doit accepter 
tout brouillage radioélectrique subi, 
même si le brouillage est susceptible d'en 
compromettre le fonctionnement.
(For U.S.A.) (Pour les États-Unis)
This transmitter must not be co-located 
or operated in conjunction with any other 
antenna or transmitter.
Precautions
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35
MEMO
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© 2012 JVC KENWOOD Corporation 0412SKYMDWBET
EN
POWERED WOOFER CD SYSTEMRV-NB90B
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