Naxa NPB-428 User manual

Portable MP3/CD/USB Player with
Stereo Radio & Cassette Recorder
NPB-428
Instruction Manual
Please read carefully before use and keep for future reference.

Page 2 Naxa Electronics
Table of Contents
Thank You ..................................................................... 3
In the Box ...................................................................... 3
Before You Start ........................................................... 4
At a Glance .................................................................... 5
Main Unit......................................................................................... 5
Remote Control............................................................................ 10
About the Speakers..................................................... 11
Attaching the Speakers................................................................ 11
Detaching the Speakers...............................................................12
Connecting the Speakers.............................................................12
Connect Power.............................................................13
AC Power.........................................................................................13
Battery Power................................................................................13
Basic Functions............................................................14
Turning the Unit On and Off ...................................................... 14
Adjusting the Volume.................................................................. 14
Bass Boost..................................................................................... 14
Using the Radio............................................................14
Using the CD/MP3 Player ............................................15
About Compact Discs...................................................................15
Loading a Disc................................................................................15
Playing a Disc.................................................................................16
Repeat, Random & Intro Playback ............................................17
Programming a Playlist ...............................................................18
Using the Cassette Player...........................................18
About the Cassette Keys .............................................................18
Playing a Cassette Tape ...............................................................18
Recording to Cassette Tapes.......................................................19
Record Protection........................................................................20
Caring for the Cassette Mechanism...........................................21
Using the AUX Input ................................................... 22
Warnings and Precautions......................................... 23
Specications ..............................................................27
Support ....................................................................... 28

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Thank You
We know you have many choices when it comes to
technology; thank you for choosing us here at Naxa
Electronics. Established in 2001 in Los Angeles, Califor-
nia, we are dedicated to delivering products that en-
tertain and delight.
We trust that you will be happy with your purchase.
Please read this manual carefully and save it for refer-
ence. You may also nd the latest FAQ, documentation,
and other product material at our website. Come visit
us on the web at www.naxa.com and see all that we
have to offer!
In the Box
Please take a moment to make sure that you have ev-
erything in the list below. Although we make every ef-
fort to ensure that each Naxa device is securely packed
and sealed, we know a lot can happen in between us
and you. If anything is missing, check back with your
local retailer to get immediate assistance. If they can-
not help you, please contact our Naxa Support team at
www.naxa.com/naxa_support.
•NPB-428 MP3/CD/USB player
•Remote control
•AC power cable
•User manual

Page 4 Naxa Electronics
Before You Start
Please take note of the following before you start.
•Do not block the ventilation openings or holes.
•Avoid installing the unit in locations described be-
low:
•Places exposed to direct sunlight or close to
heat radiating appliances (such as electric
heaters, or on top of other stereo equipment
that radiate heat).
•Places lacking ventilation or dusty places.
•Places subject to constant vibration.
•Places that are humid or moist.
•Operate turning controls and switches as instruct-
ed in manual.
• Before turning on the power for the rst time, make
sure that the power cord is properly installed.
•Store your tapes or CD in a cool area to avoid dam-
age from heat.
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,
DO DOT REMOVE COVER (OR BACK). NO USER SER-
VICEABLE PARTS INSIDE, REFER SERVICING TO QUALI-
FIED SERVICE PERSONNEL.
WARNING: Remove batteries if exhausted or if they will
not be used again for a long period. The incorrect use
of batteries can cause electrolyte leakage and will cor-
rode the compartment or cause the batteries to burst,
therefore:
•Do not mix battery types, e.g., alkaline with zinc
carbonate.
•When inserting new batteries, replace all batteries
at the same time.

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At a Glance
Main Unit
1 Antenna Extend the antenna fully and ad-
just its position to optimize radio
reception.
2 Handle Raise the handle to transport the
unit safely and easily.
3 CD compartment Load compact discs here. The label
side should face up.
4 CD door latch Press here to open/close the door of
the CD compartment [3].
Never open the compartment while
a CD is playing or spinning!
5 Speakers Full-range drivers deliver powerful
stereo sound.

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14
15
16
17
MAX.
MIN.
AUX/
MP3-IN
FM
AM FMST.
6
12
13
7
9
8
10
11
6 STANDBY key
(Power)
Press to turn the player on or off.
7Power
indicator
Lights up when power is on.
8FM ST.
indicator
Lights up when the radio is tuned to an
FM stereo signal.
9 USB port Load USB memory sticks here. The USB
port is designed for music playback from
ash memory devices. It is not designed
to charge high-power devices.
10 VOLUME dial Turn to adjust the volume level.
11 FUNCTION
switch
Set the switch to the position of the
desired function mode.
12 BAND switch Set the switch to the desired radio band.
13 AUX Input
jack
Play audio from a device that is con-
nected to this 3.5mm input jack.
14 Remote sensor Detects signals from the remote control.
15 LCD screen Displays player status information.
16 BBS key Press to enable/disable bass boost.
17 RADIO TUNING
dial
Turn the dial to tune to a radio station.

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MAX.
MIN.
AUX/
MP3-IN
FM
AM FMST.
18 21
23
22
24
20
19
18 FOLD+/
+10 key
FOLD+: Skip to the next folder (MP3 only).
+10: Press to skip 10 tracks forward.
19 PROG/
P-MODE key
Program: Create a custom CD/MP3/USB
playlist. Press to enter Program mode.
P-MODE: Play mode. Press to change the
CD/MP3/USB repeat/playback mode.
20 FOLD–/
–10 key
FOLD–: Skip to the previous folder (MP3
only).
–10: Press to skip 10 tracks back.
21 key Stop: Press to stop CD/MP3/USB playback.
22 / USB key Play/Pause: Press to start, pause, or re-
sume CD/MP3/USB playback.
USB: Press and hold to switch to USB
mode.
23 key
(Next/
Forward)
Next: Press to skip to the next track.
Forward: Press and hold to scan quickly
forward through the current track.
24 key
(Previous/
Reverse)
Previous: Press to skip to the previous track.
Reverse: Press and hold to scan quickly in
reverse through the current track.

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MAX.
MIN.
AUX/
MP3-IN
FM
AM FMST.
26 27 29 31 28 30
25
25 Cassette
compartment
Load cassette tapes for playback or
recording.
26 TAPE key Record: Press down together with the key
[27] to start recording.
27 TAPE key Play: Press play to start tape playback.
28 TAPE key Rewind: Press to rewind the tape when
playback is stopped.
29 TAPE key Fast-forward: Press to fast forward
through the tape when playback is
stopped.
30 TAPE key Stop: Press to stop tape playback.
Eject: When playback is stopped, press to
open the cassette compartment [25].
31 TAPE key Pause: Press to pause tape playback or
recording. Depress the key again to re-
sume playback or recording.

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32 35
36
37
33
34
32 AC power
socket
Connector for the included AC power
cable.
33 Speaker latch
(R)
Locks the right speaker in place when it is
connected to the main unit.
34 Battery
compartment
Load 8 UM-1 “D” size batteries into the
compartment for portable power.
35 Speaker input
(L)
Plug in the speaker cable from the left
speaker here.
36 Speaker input
(R)
Plug in the speaker cable from the right
speaker here.
37 AC Voltage
switch
Available only on models that support
dual-voltage. Make sure the switch is
correctly set to match your household
power supply.

Page 10 Naxa Electronics
Remote Control
PLAY/PAUSE Press to start, pause, or resume CD/MP3/
USB playback.
BACK Press to skip to the previous track.
NEXT Press to skip to the next track.
STOP Press to stop CD/MP3/USB playback.
CD/USB Press and hold to switch between CD/MP3
and USB mode.
+10/MP3 Press to skip 10 tracks forward.
Skipping 10 tracks will only work on media
that contain more than 10 MP3s (e.g.,
MP3-CDs, USB ash drives).
PROG./P-MODE While playback is stopped, press to enter
Program mode in order to create a custom
CD/MP3/USB playlist.
During playback, press to change the CD/
MP3/USB play mode (i.e., repeat, random,
intro).

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About the Speakers
The speakers can be installed attached to or detached
from the main unit.
•Attach the speakers when you want to travel with
the unit.
•Detach the speakers and position them as far away
from each other as possible in order to increase
stereo separation.
Attaching the Speakers
1. Position the speaker next to the main unit so that:
•The top of the speaker rises one inch above the
top of the main unit, and
• The four hooks on the main unit sit ush inside
the rectangular indent on the speaker.
2. Slowly slide the speaker down until the retaining tab
on the speaker clicks into the speaker latch [33] on
the main unit.

Page 12 Naxa Electronics
Detaching the Speakers
1. Press the retaining tab down towards the speaker.
2. Slide the speaker up and then away from the main
unit.
Connecting the Speakers
Plug the speaker cables running from the back of each
speaker to the left and right speaker inputs [35, 36]
found on the back of the unit.

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Connect Power
The unit can be powered by AC household power, or by
batteries.
AC Power
Make sure the AC voltage switch [37] is set to match
the voltage supplied in your region. Contact your local
power utility if you are not sure which type of power
you have.
The voltage switch is located inside the battery com-
partment [34] found on the back of the main unit. (Set
this switch to 110V in North America.)
1. Remove the battery compartment lid to reveal the
AC voltage switch.
2. Push gently on the switch with a at head screw-
driver to set it.
3. Replace the battery compartment lid.
4. Connect the AC power socket [32] to a household
power socket with the included power cord.
Battery Power
Install 8 UM-1 “D” size batteries to enjoy music wher-
ever you are.
1. Remove the lid from the battery compartment [34]
found on the back of the main unit.
2. Load eight “D” size batteries, taking care to match
the polarities marked on the inside of the com-
partment.
ѥѥRemove the batteries if they are exhausted
or will not be used for a long time.
Batteries contain chemicals that may be
regulated by your local government. Dis-
pose of them properly according to regula-
tions.

Page 14 Naxa Electronics
Basic Functions
Turning the Unit On and O
To turn the unit on, press the STANDBY (power) key [6].
The Power indicator [7] will light up.
To turn the unit off, press the STANDBY key [6] again.
Adjusting the Volume
Turn the VOLUME dial [10] clockwise or counter clockwise
to increase or decrease the volume level, respectively.
Bass Boost
Turn the Bass Boost adjustment on to emphasize low
frequency sound output.
Press the BBS key [16] to turn Bass Boost on and off.
ѥL Producing low frequencies at high volumes
can be demanding for audio equipment. If you
experience audio clipping when Bass Boost is
turned on, lower the volume gradually.
Using the Radio
Set the FUNCTION switch [11] to the RADIO position to
start using the radio.
1. Select a frequency band. Set the BAND switch [12]
to the AM, FM, or FM ST. position.
ѥL Select the FM band (mono) when tuning to
a station with a weak signal. Select the FM
ST. (stereo) band when the signal is strong.
The FM ST indicator [8] will light when the
tuner is locked in on a stereo signal.
2. Turn the RADIO TUNING dial [17] to tune to a radio
station; the current station can be seen on the LCD
screen [15].
3. Optimize radio reception:
• Fully extend the telescopic Antenna [1] and
adjust its orientation to optimize FM radio
reception.
•The AM antenna is built into the player. Adjust
the orientation and position of the player itself
to optimize AM radio reception.

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Using the CD/MP3
Player
Set the FUNCTION switch [11] to the CD/MP3/USB/AUX
position to start using the CD/MP3 player.
About Compact Discs
This player is compatible with all digital audio CDs,
digital audio CD-Recordable discs (CD-R) and CD-Re-
writable discs (CD-RW) that have been nalized, and
CD-DA format digital audio CDs.
This player is also compatible with MP3-CDs. These are
compact discs that contain MP3 audio les on them.
ѥL Only handle a CD by its edge. Avoid touch-
ing the label or the playable side with your
hands or any other object.
Loading a Disc
1. Open the CD compartment [3]. Press down on CD
door latch [4] to release the spring latch.
2. Load a compatible disc. Place the CD into the com-
partment [3] with its label facing up.
3. Close the CD compartment [3]. Lower the door and
push down on it at the CD door latch [4]. Make sure
that the spring latch catches and secures the door
in place.
4. The player will attempt to read the disc once the
door is closed.
•The LCD screen [15] will show the amount of
playable tracks on the disc.
•If the disc was loaded incorrectly, is incompat-
ible with the player, or is unreadable for some
other reason, the LCD screen [15] will read
“NOD” (i.e., No Disc).
ѥL To ensure good system performance, wait
until the player recognizes and reads the
disc before proceeding.

Page 16 Naxa Electronics
Playing a Disc
With a compatible disc in the CD compartment [3]:
•Press the / USB key [22] to start playback.
•Play will start from track 1.
•The Play [ ] indicator will appear on the LCD
screen [15].
•To pause playback, press the / USB key [22] while
a disc is playing.
•The Play [ ] indicator will ash on the LCD
screen [15].
•Press the / USB key [22] again to resume
playback.
•To stop playback, press the key [21].
•To select a track to play:
•Press the key [23] to skip to the next track.
•Press the key [24] to skip back to the previ-
ous track.
• Press the FOLD+/+10 key [18] to skip 10 tracks
forward. The LCD screen [15] will change tracks
accordingly.
• Press the FOLD–/–10 key [20] to skip 10 tracks
backward. The LCD screen [15] will change
tracks accordingly.
ѥL Skipping 10 tracks will only work on media
that contain more than 10 MP3s (e.g., MP3-
CDs, USB ash drives).
•To scan through a track at high speed:
•Press and hold the key [23] during playback.
Play will advance quickly through the current
track; release the key to resume playback at
normal speed.
•Press and hold the key [24] during playback.
Play will reverse quickly through the current
track; release the key to resume playback at
normal speed.
•To select a folder to play (MP3 only):
• Press and hold the FOLD+/+10 key [18] to skip
to the next folder. The player will skip to the
next folder and the LCD screen [15] will display
the current folder number.
• Press and hold the FOLD–/–10 key [20] to skip

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to the next folder. The player will skip to the
next folder and the LCD screen [15] will display
the current folder number.
ѥL Selecting a folder will only work on media
that contain MP3s organized within fold-
ers/directories (e.g., MP3-CDs, USB ash
drives).
Repeat, Random & Intro Playback
You can change the order in which the tracks of a CD
are played. Press the PROG/P-MODE key [19] during
music playback.
•To repeat a single track, press the PROG/
P-MODE key [19] until the “REPEAT” indicator
ashes on the LCD screen [15]. The current track
will play repeatedly until play is stopped.
•To repeat all tracks, press the PROG/
P-MODE key [19] until the “REPEAT” indicator ap-
pears steady on the LCD screen [15]. The player will
replay all tracks on the CD until play is stopped.
•To repeat all tracks in a folder, press the PROG/P-
MODE key [19] until the “REPEAT FOLDER” indica-
tor appears steady on the LCD screen [15].
ѥL This option will only work with media that
contain MP3s organized within folders/di-
rectories (e.g., MP3-CDs, USB ash drives).
This option will not work when playing a
regular audio CD.
•To randomize the track order during playback,
press the press the PROG/P-MODE key [19] until
“RANDOM” appears steady on the LCD screen [15].
•To play just the rst 10 seconds of each track,
press the PROG/P-MODE key [19] until “INTRO” ap-
pears steady on the LCD screen [15]. The player will
play the rst 10 seconds of a track and then skip to
the next one.
ѥL This option will only work with CDs. This op-
tion is not supported with USB ash drives.
•To return to normal playback, press the PROG/
P-MODE key [19] until all indicators disappear
from the LCD screen [15].

Page 18 Naxa Electronics
Programming a Playlist
When play is stopped, you can select up to 20 CD tracks
(or 99 MP3 tracks) to play in any order that you choose.
1. Press the key [21] to make sure that playback
has stopped.
2. Press the PROG/P-MODE key [19]. The current
playlist number “P01” will appear and the “PRO-
GRAM” indicator will ash on the LCD screen [15].
3. Use the or key [23, 24] to choose a track to
enter into the playlist.
4. Press the PROG/P-MODE key [19] to save the track
into the playlist. The next playlist track number
will appear on the LCD screen [15] (e.g., “P02”).
5. Repeat steps 3 and 4 until your playlist is complete,
then press the PROG/P-MODE key [19] to nish the
playlist.
6. Press the / USB key [22]. Play will start from the
rst track in the playlist.
7. Press the key [21] to stop the programmed play-
list. Open the CD compartment [3] to delete the
program and return to normal playback.
Using the Cassette
Player
Set the FUNCTION switch [11] to the TAPE position to
start using the cassette tape player.
About the Cassette Keys
The cassette keys are located below the cassette com-
partment [25]. They are numbered 26 to 31 in the sec-
tion “At a Glance” and throughout this manual.
You can learn more about their functions in the section
“At a Glance.”
Playing a Cassette Tape
ѥѥDo not use C120 cassettes or other special-
ized cassettes with this player.
1. Open the Cassette compartment [25]. Press the
TAPE key [30] while playback is stopped.

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2. Load the cassette into the compartment with its
exposed magnetic tape facing down.
ѥL The tape will spool from the left to right
reel. If the cassette you are loading is
wound to the beginning, the full reel should
be on the left.
ѥѥTake up any slack in the tape before load-
ing the cassette into the compartment.
Turn the cassette reel with your nger or a
pencil until the tape is taut.
3. Close the cassette compartment [25]. Push the
door of the compartment into the body of the
player until it is securely closed.
4. Cue the tape (optional). Press the TAPE or TAPE
key [29, 28] to the part of the tape that you want
to play.
5. Start playback. Press the TAPE key [27].
6. Adjust the volume. Turn the VOLUME dial [10] to
adjust the volume to a comfortable level.
7. To stop playback, press the TAPE key [30].
ѥL Your player is equipped with Auto Stop.
When the end of the tape is reached, the
player will automatically stop the tape and
all keys will be deactivated.
Recording to Cassette Tapes
You can record from different sources to cassette tape.
Record with quality cassettes only (e.g., IEC type 1).
ѥѥDo not use C120 cassettes or other special-
ized cassettes with this player.
1. Choose the source of the recording you want to
make. Set the FUNCTION switch [11] to:
•CD/MP3/USB/AUX to record from the CD or
USB player, or from an audio source connected
to the AUX input jack [13].
•RADIO to record from the radio.
2. Get the source ready. For CD/MP3/USB/AUX, cue
playback to the point that you want to record. For

Page 20 Naxa Electronics
the Radio, tune to the station that you want to re-
cord.
3. Get the target ready. Load a blank cassette tape into
the Cassette compartment [25]. Optionally, cue the
tape to the point that you want to record to with the
TAPE or TAPE keys [29, 28].
ѥL The exposed magnetic tape of the cassette
should face down.
ѥѥTake up any slack in the tape before load-
ing the cassette into the compartment.
Turn the cassette reel with your nger or a
pencil until the tape is taut.
4. Start recording. When you are ready to record,
press the TAPE key [26] together with the TAPE
key [27]. (For CD/MP3/USB/AUX, start playback).
ѥѥDo not force the TAPE key down if you
detect resistance! If you cannot press the
TAPE key down, the cassette tape may
be record-protected. Refer to the section
“Record Protection” to learn more.
5. Stop recording. Press the TAPE key [30] to stop
recording.
ѥL You may also pause recording by pressing
the TAPE [31] key. Depress the TAPE key
again to resume recording.
Record Protection
Protect your cassette tape from accidental erasure
with the Record Protection tab.
1. Locate the tab on your cassette tape. It can be found
on the long side of the cassette, opposite the side
with the exposed tape (see the illustration below).
Record Protect Tab for Side “A”