Apacer Technology AUDIO STENO AU351 User manual

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For your Safety
Warning
zTo prevent electric shock or other injury, please do not disassemble or repackage
this product.
zTo prevent a fire, electric shock, or device malfunction, please do not use this
product in a wet environment such as a bathroom.
If the product gets wet, do not turn it on. Contact a Service Center.
zDo not leave the player in areas above 40oC (104oF). Such as inside a sauna or
parked car.
zThis product is an electronic device; please avoid dropping it or subjecting it to
other severe shock.
zFor your safety and the safety of others, do not use headphones while driving,
cycling or conducting any other similar activities.
zPlease do not overcharge the battery as it may cause damage.
zAvoid using your player at high volume levels, as it may result in permanent
hearing damage. If you experience ringing in your ears while using the earphones,
remove the earphones immediately and lower the volume.
Notice
zDo not dismantle the player personally or use alcohol, thinner or benzene to clean
the surface of the player.
zDo not disconnect the player while formatting, uploading or downloading,
otherwise it may cause a program error
zWhen transferring files, do not turn the power off or restart this device. No
responsibility is provided for any damage to or loss of any program, data, or other
information stored on any media or any part of this device serviced hereunder.
zBattery service life may vary according to actual using conditions, manufacturer
and manufacturing date.
zWe suggest you to charge the battery through NB/ PC USB port.
zThe player begins recharging once it is connected to the USB port of a standard
computer, whether it is powered on or not.
zPlease recharge the device when:
A. Battery electricity icon displays no electricity.
B. Player refuses to power on.
C. Player functions normally, but it quickly powers off automatically.
D. There is no response when pressing the keys.

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Table of contents
For your Safety
Chapter 1. Introduction.......................................................................................4
Chapter 2. Product Features..............................................................................4
Chapter 3. Diagram of the player.......................................................................5
Chapter 4. Package Contents ............................................................................5
Chapter 5. Basic Functions................................................................................5
Power On/ Off.................................................................................................5
Hold Function.................................................................................................5
Charging the Battery .....................................................................................6
Connect to Computer and Data File Transmission.....................................6
A-B Replay Function .....................................................................................6
Volume Control..............................................................................................7
Chapter 6. System Menu ....................................................................................7
Main menu setup ...........................................................................................7
Music Mode....................................................................................................7
FM Tuner Mode..............................................................................................7
Voice Mode.....................................................................................................7
Setting Mode..................................................................................................7
Delete Files.....................................................................................................8
Language setting...........................................................................................8
System Info. ...................................................................................................8
Exit..................................................................................................................8
Chapter 7. Listen to Music .................................................................................8
Music Playing/ Stop.......................................................................................8
Music Settings ...............................................................................................9
Play mode setting........................................................................................10
Chapter 8. Listen to FM Radio..........................................................................10
Listen to FM Radio.......................................................................................10
FM Channel Setting.....................................................................................10
FM recording................................................................................................10
Review Stored Station.................................................................................11
Chapter 9. Setting mode...................................................................................11
Equalizer setting..........................................................................................11
Play Mode.....................................................................................................11
Power saving Mode .....................................................................................11
Backlight Setting .........................................................................................12
Record Quality.............................................................................................12
Exit................................................................................................................12
Chapter 10. Troubleshooting ...........................................................................13
Chapter 11. Service and Support.....................................................................14
Chapter 12. Product specifications.................................................................14

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We also make no representation for the data or music files lost of the player.
Microsoft Windows Media and Windows are trademarks of Microsoft Corporation.
Trademarks of other products mentioned in this user's manual are owned by their
respective companies
or organizations.
Chapter 1. Introduction
Thanks for your purchase of the Apacer Audio Steno MP3 Player.
Before operating the unit, please read this manual thoroughly and keep it for future
reference. This manual will help you learn to use many of the exciting features of
this device and make your experience more enjoyable.
This manual contains important safety measurements and operational information,
so please read all the information carefully before you use the device in order to
avoid any unexpected accidents.
Chapter 2. Product Features
z Slim and small for easy carrying (width 7cm, height 2.9cm)
z Exquisite front panel and push button design with a taste of elegance
z Neodymium magnet earphone speaker brings high-definition sound effects
z Independent EQ hotkey for rapid switching of EQ mode
z Digital FM tuner, support frequency range from 87.5 to 108MHz
z Built-in high-performance Li-battery for continuous playing up to 12 hours

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Chapter 3. Diagram of the player
1. Key
2. key
3. key
4. key
5. key
6. key
7. key
8. key
9. key
Chapter 4. Package Contents
z Audio Steno AU351 MP3 Player x 1
z Earphones x 1
z Installation CD x 1
z Quick Start Guide x 1
z USB Cable x 1
Chapter 5. Basic Functions
zPower On/ Off
Power on: Press and hold the button for 3 seconds. Power is turned on.
Power off: Press and hold the button for 3 seconds. Power is turned off.
zHold Function
Follow the below steps to enable Hold function to avoid the accidental operation.
Hold on: push the key to direction to lock all key.
Hold off: push the key to the reverse direction of .
Note: Once the Hold function is enabled, it will prompt LOCKED signal when any
key is pressed.

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zCharging the Battery
1. Connect the USB cable to your MP3 player, then connect the other end of
USB cable to the USB port on your PC.
2. The battery icon will display the impulse, after the charging, the battery
electricity will shows full grids.
3. It takes about 4 hours to fully charging the battery. Excessive charging or
discharging may shorten the battery’s life.
Note:
Fully charge the rechargeable battery before using the player for the first time or
when it has not been used for a while.
The player can not perform Music playing function when charging the battery.
zConnect to Computer and Data File Transmission
1. Connect the USB cable to your MP3 player, then connect the other end of
USB cable to the USB port on your PC.
2. Select and organize files and folders in preparation for transfer to your MP3
player.
zA-B Replay Function
1. Play a file of your choice
2. Press the key at the beginning of the section you want to repeat. The
starting point is set and “A-” in the icon will appear in the screen display
window.
3. Press the key again to set the ending of the section you want to
repeat. “A-B” will appear in the screen and the specified section starts to
play repeatedly.
4. Press the key again during section to cancel the section repetition.

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zVolume Control
In the Music playing mode, short press the or key to increase or
decrease the volume. Hold the key to keep increasing or decreasing the volume.
Chapter 6. System Menu
zMain menu setup
1. Press the key to enter the main menu under standby or playing mode.
2. Press the or key to select: Music; Voice; FM Tuner; Settings; Delete
Files; Language; System Info; Exit.
3. Press the key to enter into the following setting:
zMusic Mode
See Listen to Music section.
zFM Tuner Mode
See Listen to FM Radio section.
zVoice Mode
Voice Recording
1. Select “Voice” option in the Main menu, press the key to enter.
2. Press the key to start recording, the LCD screen will show as below.
3. Press the key to pause recording, the pause symbol “ ” appears in
the screen. Press the key again to continue.
4. Press the or key to stop the recording and save the voice
automatically and names it as ‘Vxxx.WAV’.
zSettings Mode
See Settings section.

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zDelete Files
1. Select “Delete Files” option in the Main menu, press the
key to enter.
2. Press the or key to select: Music Files, Voice Files
or Exit, press the key to confirm your selection.
3. There will have four prompts: NO, Yes, Exit, press the key to confirm
your selection.
4. Press the or key to select the file you want to delete, press the
key to confirm your selection.
Note: Read-only files can only be deleted via your computer. It is not possible to
delete them directly from the player using the Delete Files option.
zLanguage setting
1. Select “Language” option in the Main menu, press the
key to enter.
2. Press the or key to select the desired language.
3. Press the key to confirm your selection.
zSystem Info.
1. Select “System Info.” option in the Main menu, press the
key to enter.
2. You can see total memory, free memory & firmware
version.
3. Press the key again to exit and return to the Main menu.
zExit
Select “Exit” option in the Main menu to exit.
Chapter 7. Listen to Music
zMusic Playing/ Stop
1. Press and hold the key for 3 seconds. Power is turned on.
2. Select “Music” option in the Main menu, press the
key to enter.

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3. Press the key to playing MP3 file, Press the key again to pause.
Play Pause
4. While playing or pausing a track, press the key for 2 seconds to stop.
5. In playing mode, press the or key to select previous or next track.
6. In playing mode, keep press the or key to fast rewind or fast forward
in this track.
zMusic Settings
1. In Music mode, press the key twice to enter into the music submenu.
The screen displays last used playing mode.
2. Press the or key to select Direct Play, Select by Folder or Exit option.
Press key to confirm.
3. Choosing Select by Folder option, press the or key to switch
tracks. Press the key to change the folders and to exit.

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zPlay mode setting
Select “Settings” option in the Main menu, press the key to enter.
1. Press the or key to select Play Mode, press the key to enter.
2. Press the or key to select: Normal, Repeat Track, Repeat All, Shuffle
& Repeat Shuffle options.
3. Press key to select and save.
Note: The data storage capacity is limited to the capacity of the MP3 player;
however during the selecting of the songs, it only can play first 415 songs in
Direct Play mode or play the first 4 folders (Max . 99 songs per folder) in Select
by Folder mode.
Chapter 8. Listen to FM Radio
The frequency range from 87.5 to 108MHz;
zListen to FM Radio
1. Select “FM Tuner” option in the Main menu, press the key to enter.
2. Press the or key to manually select frequency channels.
3. Hold the or key to search frequency automatically, and system will stop
when detecting one channel from a strong power station.
zFM Channel Setting
1.
In “FM Tuner” mode, press or key to select one desired channel.
2. Press key enters into ‘Station Preset’ mode and LCD
displays like following example:
3. Press or key to select desired save channel number from P01 to P20.
4. Press key again to enter into ‘Station Memory’ mode,
and player displays MEMORY:
Press Previous key or Next key key to select one desired frequency.
5. Press key to confirm, and the station had been saved as your selected
channel. Here you can press key twice to exit, and player will return back
FM Tuner mode.
zFM recording
1. In FM broadcasting status, press key to enter into
FM radio program record screen directly .

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2. During FM recording, press key to pause or resume.
3. To stop recording, press or key. System stores the voice
automatically and names it as ‘Fxxx.WAV’.
zReview Stored Station
Supporse you have stored some stations on the player.
To review saved station, do the following:
1. Enter into FM Fine Tune mode, then press key once directly without any
other operation. Then the player enters into Station Preset mode, and
screen displays like following example:
2. The first stored station will display, then press or key to find the other
stored stations.
Chapter 9. Setting mode
1. In the Main menu, press the or key to select “Settings” option, press
the key to enter.
2. Press the or key to select: Equalizer, Play Mode, Power saving,
Backlight Setting, Record Quality & Exit, press the key to enter.
zEqualizer setting
1. Select “Equalizer “ option in the Settings Mode menu,
press key to enter:
2. Press the or key to select: Normal, Rock, Jazz,
Classic, Pop, Bass & Treble.
3. Press key to select and save.
zPlay Mode
See Listen to Music section.
zPower Saving Mode
1. Select “Power Saving“ option in the Setting Mode menu,
press key to enter:
2. Press the or key to select: OFF, 1 Min, 2 Min, 5
Min & 10 Min option.
3. Press key to select and save.

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zBacklight Setting
1. Select “Backlight Set “ option in the Setting Mode menu,
press key to enter:
2. Press the or key to select: 5s, 10s, 20s & ON.
3. Press key to select and save.
zRecord Quality
1. Select “Record Quality“ option in the Setting Mode
menu, press key to enter:
2. Press the or key to select: EP, LP & SP.
3. Press key to select and save.
zExit
Select “Exit“ option in the Setting Mode menu to return
Main menu.

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Chapter 10. Troubleshooting
If a malfunction is experienced, check the following.
Problem Causes
zPower will not turn on Power will not turn on if the battery is fully
discharged. Recharge the battery and turn the
power on again.
zPower automatically turs off The power is automatically turned off when the
batter is fully discharged. Recharge the battery.
zThe screen will not turn on z The screen may not be visible under direct
sunlight.
z Check if you have selected the “Power Save”
setting.
zPlaying is disabled z Check if the desired file has been saved in the
memory.
z Check if the music file is correct or the format is
not supported.
z Check if there is enough battery power.
zNo music or sound z Check if the volume is not reduced to the 0 level.
z Check that the earphones are connected well
and keep the earphones clean.
z Corrupted music files may result in unplayability,
please confirm the integrity of the files. Re-
format the disk.
zConnection to PC is disabled z Insert the USB cable well after the power is
turned on, or plug in the player again via USB
cable.
z Correctly reinstall the driver again.
zAbnormal Play Time
Displayed while playing
Check if that the file is in VBR (Variable Bit Rate)
format
zActual memory capacity is
different from what is listed
on package
Small discrepancies are due to different file formats
and algorithms used by various operating systems.
zAbnormal wording or file
name display
Make sure that you have selected the correct
language.
zThe product is hot Heat may be generated during recharging. This has
no effect on product life or functions.

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Chapter 11. Service and Support
Please contact our local distributor or our customer service center, if you have any
technical problems.
Customer Service Center: http://www.apacer.com
Chapter 12. Product specifications
USB interface USB 2.0
Built-in Memory capacity 1GB/ 2GB
Display 128x64 LCM (Negative blue backlight)
User interface 12 languages (ID3 display supported)
MP3 file supported format MP3: MP3 64Kbs~320Kbps,
WMA: 64Kbs (class1) ~ 192Kbps
EQ modes Normal, Rock, POP, Classic, Bass, Jazz, Treble
S/N ratio > 85 dB
FM frequency 87.5MHz~108MHz
Power source Built-in rechargeable 330mA Li-Polymer battery
Earphone output (L) 10mW + (R ) 10mW (32 Ohm)
Battery life Maximum of 12 hours music playback time*
Certification CE, FCC, BSMI
Dimensions / Weight (L)76 x (W)26 x (H)12.8mm / 30g
Operating temperature -10°C ~ 40°C (14°F ~ 104°F)
Operating humidity 10 % ~ 75%
Support O/S Windows 98(SE)/ ME/ 2000/ XP/ Vista
Supported file system FAT, FAT32
Accessories Earphones, USB Cable, Quick Start Guide,
Installation CD (Win98 driver & User Manual
inside)
z Note : Battery life will vary depending on temperature and usage.
The contents of this Manual are subject to change without prior notice for further improvement.

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