3-095-505-11(1)
Micro HI-FI
Component System
Operating Instructions
CMT-BX4R
CMT-BX3R
© 2007 Sony Corporation
WARNING
To reduce the risk of fire or
electric shock, do not expose
this apparatus to rain or
moisture.
To reduce the risk of fire, do not cover
the ventilation of the apparatus with
newspapers, tablecloths, curtains, etc.
And do not place lighted candles on the
apparatus.
To reduce the risk of fire or electric shock,
do not place objects filled with liquids,
such as vases, on the apparatus.
Connect the unit to an easily accessible AC
outlet. Should you notice an abnormality
in the unit, disconnect the main plug from
the AC outlet immediately.
Do not install the appliance in a confined
space, such as a bookcase or built-in
cabinet.
Do not expose the battery to excessive heat
such as direct sunlight, fire or the like.
Latin American models only except
for the Argentine model
The nameplate is located on the bottom
exterior.
Except for customers in the U.S.A.
and Canada
This appliance is classified as a CLASS 1
LASER product. This marking is located
on the rear exterior.
GB
Notice for the customer in the
countries applying EU Directives
The manufacturer of this product is Sony
Corporation, 1-7-1 Konan, Minato-ku,
Tokyo, Japan.
The Authorized Representative for EMC
and product safety is Sony Deutschland
GmbH, Hedelfinger Strasse 61, 70327
Stuttgart, Germany.
For any service or guarantee matters please
refer to the addresses given in separate
service or guarantee documents.
Disposal of Old Electrical
& Electronic Equipment
(Applicable in the
European Union and
other European countries
with separate collection
systems)
This symbol on the product or on its
packaging indicates that this product
shall not be treated as household waste.
Instead it shall be handed over to the
applicable collection point for the
recycling of electrical and electronic
equipment. By ensuring this product
is disposed of correctly, you will help
prevent potential negative consequences
for the environment and human health,
which could otherwise be caused by
inappropriate waste handling of this
product. The recycling of materials will
help to conserve natural resources. For
more detailed information about recycling
of this product, please contact your
local Civic Office, your household waste
disposal service or the shop where you
purchased the product.
Applicable accessories: Remote
commander
Note on DualDiscs
A DualDisc is a two sided disc product
which mates DVD recorded material on
one side with digital audio material on
the other side. However, since the audio
material side does not conform to the
Compact Disc (CD) standard, playback on
this product is not guaranteed.
Music discs encoded with copyright
protection technologies
This product is designed to playback
discs that conform to the Compact Disc
(CD) standard. Recently, various music
discs encoded with copyright protection
technologies are marketed by some
record companies. Please be aware that
among those discs, there are some that
do not conform to the CD standard and
may not be playable by this product.
The recorded music is limited to private
use only. Use of the music beyond
this limit requires permission of the
copyright holders.
“WALKMAN” and “WALKMAN”
logo are registered trademarks of Sony
Corporation.
MICROVAULT is a trademark of Sony
Corporation.
MPEG Layer-3 audio coding
technology and patents licensed from
Fraunhofer IIS and Thomson.
GB
Table of Contents
Guide to parts and controls.............. 5
Information on the display................ 9
Getting Started
Hooking up the system
securely...................................................10
Setting the clock.................................11
Basic Operations
Playing a CD/MP3 disc......................12
Listening to the radio........................13
Recording from a disc onto an USB
device......................................................14
Listening to music of an USB
device......................................................16
Using optional audio
components..........................................18
Adjusting the sound..........................18
Changing the display........................19
Other Operations
Creating your own program
(Program Play)......................................20
Presetting radio stations..................21
Using the Timers..................................22
GB
Others
Troubleshooting..................................23
Messages................................................27
Precautions............................................28
Specifications.......................................30
Playable/Recordable USB
devices....................................................31
This manual mainly explains operations using the remote, but the same operations can
also be performed using the buttons on the unit having the same or similar names.
Unit
Front panel
Guide to parts and controls
Guide to parts and controls
Top panel
Continued

GB
Remote

USB MEMORY indicator
Lights up when an optional USB device
(Digital music player or USB storage
media) is connected.

AUDIO IN jack (page 18)
Connect to an optional audio
component.

PHONES jack
Connect the headphones.

(USB) port (page 14, 16, 31)
Connect to an optional USB device
(Digital music player or USB storage
media).


/ (power) button (page 11, 22,
26)
Press to turn on the system.

STANDBY indicator (page 19, 23)
Lights up when the system is turned off.

Press to select the USB function.
Press to start or pause playback of an
optional USB device (Digital music
player or USB storage media).
Remote: USB button (page 15, 16)
Press to select the USB function.
Remote sensor (page 23)
Unit: CD  (play/pause)
button (page 12)

Press to select the CD function.
Press to start or pause playback of a disc.
 (open/close) button (page 12)
Press to open or close the disc tray.
GB
Playback buttons and function
buttons
Unit: USB  (play/pause)
button (page 16)
Remote: CD button (page 12)
Press to select the CD function.
Press to start or pause playback.
TUNER/BAND button (page 13)

ENTER button (page 11, 14, 15,
20, 21, 22)
Press to enter the settings.
Press to select the TUNER function.
Press to select FM or AM reception
mode.

Unit: AUDIO IN button (page 18)
Press to select a track or file.
Press to select the AUDIO IN function.
Unit: TUNE +/ (tuning) button
(page 13)
Remote: +/ (tuning) button
(page 13, 21)
Remote: FUNCTION button
Press to select the function.

CD-USB SYNC/REC1 button (page
14, 15)
Press to record from a disc onto the
connected optional USB device (Digital
music player or USB storage media).

/ (go back/go forward)
button (page 12, 15, 17, 20)
Press to tune in the desired station.
+/ (select folder) button
(page 12, 15, 17, 20)
Press to select a folder.
/ (rewind/fast forward)
button (page 12, 17)
ERASE button (page 15)
Press to find a point in a track or file.
Press to erase MP3 files and folders
from the connected optional USB device
(Digital music player or USB storage
media).


Sound buttons (page 18)
Unit: DSGX button
Remote: EQ button
Press to select the sound effect.

Unit: /CANCEL (stop/cancel)
button (page 12, 13, 15, 17)
Remote:  (stop) button (page
12, 13, 15, 17)
Guide to parts and controls
Remote:  (play) button,
 (pause) button
Unit: VOL +/ button (page 12,
13, 16, 18)
Remote: VOLUME +/ button
(page 12, 13, 16, 18)
Press to adjust the volume.

CLOCK/TIMER SELECT button
(page 22)
CLOCK/TIMER SET button (page
11, 22)
Press to set the clock and the Play Timer.
Press to stop playback.
Continued

GB

REPEAT/FM MODE button (page
12, 13, 17)
Press to listen to a disc, an USB device, a
single track or file repeatedly.
Press to select the FM reception mode
(monaural or stereo).

Battery compartment lid
(page 11)

CLEAR button (page 20)
Press to delete a pre-programmed track
or file.

TUNER MEMORY button (page
21)
Press to preset the radio station.

PLAY MODE/TUNING MODE
button (page 12, 13, 14, 17, 20,
21)
Press to select the play mode of a CD,
MP3 disc or an optional USB device
(Digital music player or USB storage
media).
Press to select the tuning mode.

DISPLAY button (page 19)
Press to change the information on the
display.

SLEEP button (page 22)
Press to set the Sleep Timer.
GB


Function
Timer (page 22)


Audio format
Play mode (page 12, 17)


DSGX (page 18)
Tuner reception mode (page 13)


Tuner reception (page 13)
CD-USB Recording (page 14)


Text information
Play/Pause
Guide to parts and controls
Information on the display
GB
Getting Started
Hooking up the system securely
Left speaker
Right speaker
or
Wall socket
 Speaker cord (Red/)
 Speaker cord (Black/)
 AM loop antenna
 FM lead antenna (Extend it horizontally.)
 Brown side for other regions
 White side for North American model
10GB
 Speakers
Insert only the stripped portion of the
speaker cords into the SPEAKER jacks.
 Antennas
Find a location and an orientation that
provide good reception, and then set up
the antenna.
Keep the antennas away from the speaker
cords, the power cord and the USB cable
to avoid picking up noise.
 Power
When carrying this system
1 Remove a disc to protect the CD
mechanism.
2 Press CD  to select the CD
function.
3 Hold down TUNER/BAND  and
DSGX  on the unit, and press  
on the unit until “STANDBY” appears.
4 After “LOCK” appears, unplug the
power cord.
To use the remote
Slide and remove the battery
compartment lid , and insert the two
supplied R6 (size AA) batteries,  side
first, matching the polarities shown
below.
Setting the clock
Use buttons on the remote to set the
clock.
1 Press /  to turn on the
system.
2 Press CLOCK/TIMER SET .
If the current mode appears on
the display, press / 
repeatedly to select “CLOCK SET”
and then press ENTER .
Getting Started
For models with a voltage selector, set
VOLTAGE SELECTOR to the local
power line voltage.
Connect the power cord to a wall socket.
If the plug does not fit the wall socket,
detach the supplied plug adaptor (only
for models equipped with an adaptor).
3 Press /  repeatedly
to set the hour, and then press
ENTER .
4 Use the same procedure to set
the minutes.
The clock settings are lost when you
disconnect the power cord or if a
power failure occurs.
To display the clock when the system
is off
Press DISPLAY . The clock is displayed
for about 8 seconds.
Notes
With normal use, the batteries should last for
about six months.
Do not mix an old battery with a new one or
mix different types of batteries.
If you do not use the remote for a long period
of time, remove the batteries to avoid damage
from battery leakage and corrosion.
11GB
Basic Operations
Playing a CD/MP3 disc
1 Select the CD function.
Press CD .
2 Place a disc.
Press   on the unit, and place
a disc with the label side up on the
disc tray.
To close the disc tray, press   on
the unit again.
Do not force the disc tray closed with
your finger, as this may damage the
unit.
3 Start playback.
Press  (or CD  on the unit)
.
4 Adjust the volume.
Press VOLUME +/ (or VOL +/ on
the unit) .
12GB
Other operation
To
Press
Pause playback  (or CD  on the
unit) . To resume
play, press the button
again.
Stop playback  .
Select a folder
+/ .
on an MP3
disc
Select a track / .
or file
Find a point in Hold down /
a track or file  during playback, and
release the button at the
desired point.
Select Repeat REPEAT  repeatedly
Play
until “REP” or “REP1”
appears.
To change the play mode
Press PLAY MODE  repeatedly while
the player is stopped. You can select
normal play (“ *” for all MP3 files
in the folder on the disc), shuffle play
(“SHUF” or “
SHUF*”), or program
play (“PGM”).
* When playing a CD-DA disc,
(SHUF)
Play performs the same operation as normal
(shuffle) play.
Notes on Repeat Play
All tracks or files on a disc are played
repeatedly up to five times.
“REP1” indicates that a single track or file is
repeated until you stop it.
Notes on playing MP3 discs
Notes on playing multisession discs
If the disc begins with a CD-DA (or MP3)
session, it is recognized as a CD-DA (or
MP3) disc, and other sessions are not played
back.
A disc with a mixed CD format is recognized
as a CD-DA (audio) disc.
Press TUNER/BAND  repeatedly.
2 Select the tuning mode.
Press TUNING MODE  repeatedly
until “AUTO” appears.
3 Tune in the desired station.
Press +/ (or TUNE +/ on
the unit) . Scanning stops
automatically when a station is tuned
in, and then “TUNED” and “ST” (for
stereo programs only) appear.
Basic Operations
Do not save other types of files or
unnecessary folders on a disc that has MP3
files.
Folders that have no MP3 files are skipped.
MP3 files are played back in the order that
they are recorded onto the disc.
The system can only play MP3 files that have
a file extension of “.MP3”.
If there are files on the disc that have the
“.MP3” file extension, but that are not MP3
files, the unit may produce noise or may
malfunction.
The maximum number of:
 folders is 255 (including the root folder).
 MP3 files is 511.
 MP3 files and folders that can be
contained on a single disc is 512.
 folder levels (the tree structure of files) is
8.
Compatibility with all MP3 encoding/writing
software, recording device, and recording
media cannot be guaranteed. Incompatible
MP3 discs may produce noise or interrupted
audio or may not play at all.
Listening to the radio
1 Select “FM” or “AM.”
4 Adjust the volume.
Press VOLUME +/ (or VOL +/ on
the unit) .
To stop automatic scanning
Press  .
To tune in a station with a weak signal
If “TUNED” does not appear and the
scanning does not stop, press TUNING
MODE  repeatedly until “AUTO” and
“PRESET” disappear, and then press
+/ (or TUNE +/ on the unit) 
repeatedly to tune in the desired station.
To reduce static noise on a weak FM
stereo station
Press FM MODE  repeatedly until
“MONO” appears to turn off stereo
reception.
13GB
Recording from a disc
onto an USB device
You can connect an optional USB device
(Digital music player or USB storage
media) to the
(USB) port  on the
unit and record music from a disc to the
USB device.
You can record from a CD-DA disc or
MP3 disc only.
The audio format of files recorded by this
system is MP3.
The approximate size of the recording is
about 1 MB per minute of recording time
from a CD. The size may be larger when
recording from an MP3 disc.
See “Playable/Recordable USB devices”
(page 31) for a list of USB devices that
can be connected to this system.
See the operation manual supplied
with the USB device to be connected
for details on the operation method.
2 Select the CD function, then
load the disc you want to
record.
3 Press PLAY MODE  repeatedly
to select the play mode when
the CD player is stopped.
The play mode automatically changes
to normal play mode, if you start
recording in shuffle play mode, repeat
play mode or in program play mode
(when no tracks or MP3 files are
programmed).
For details about the play mode, see
“To change the play mode” (page 12).
4 Press CD-USB SYNC/REC1  on
the unit.
Synchro Recording
You can easily record an entire disc onto
an USB device.
1 Connect a recordable USB
device to the (USB) port 
as shown below.
“REC” flashes, and the display cycles
through “CD SYNC,” “FREExxxMB”
(remaining space on the USB device)
and “PUSH ENTR.”
The USB device stands by for
recording and the CD player pauses
for play.
5 Press ENTER .
Recording starts. When the recording
is completed, the CD player and the
USB device stop automatically.
Recording a single track or MP3
file during playback (REC1)
USB device (Digital music
player or USB storage
media)
14GB
When USB cable connection is
necessary, connect the USB cable
supplied with the USB device to be
connected.
You can easily record the track or MP3
file that is currently being played back
onto an USB device.
1 Connect a recordable USB
device to the
(USB) port .
2 Select the CD function, then
load the disc you want to
record.
3 Select the track or MP3 file you
3 Press /  or
+/ 
repeatedly to select the MP3 file or
folder you want to erase.
4 Press ERASE  on the unit.
4 Press CD-USB SYNC/REC1  on
the unit while the selected track
or MP3 file is being played back.
“REC” flashes, and the display cycles
through “REC 1,” “FREExxxMB”
(remaining space on the USB device)
and “PUSH ENTR.”
The USB device stands by for
recording and the CD player pauses
for play.
5 Press ENTER .
Recording starts. When the recording
is completed, the CD player continues
to play.
To stop recording
Press  .
To remove the USB device
1 Select the USB function.
Press USB .
5 Press ENTER .
The selected MP3 file or folder is
erased.
Folder and file generation rules
When first recording to an USB device,
a “MUSIC” folder is created directly
below the “ROOT.” Folders and files are
generated within this “MUSIC” folder
as follows according to the recording
method.
Synchro Recording1)
Recording
source
MP3
CD-DA
3 Remove the USB device.
To erase MP3 files or folders from the
USB device
You can erase MP3 files or folders from
the USB device.
1 Connect a recordable USB device to
the
(USB) port .
2 Select the USB function.
Press USB .
File name
Same as the recording source2)
“FLDR001”3)
“TRACK001”4)
REC1 recording
Recording
source
Folder name
File name
MP3
2 Hold down   on the unit in stop
mode until “NO DEVICE“ appears.
Folder name
Basic Operations
“TRACK ERASE?” or “FOLDER
ERASE?” appears in the display.
To cancel the erase operation, press
 .
want to record, then start play.
“REC1-001”
5)
CD-DA
Same as the
recording
source2)
“TRACK001”4)
In Program Play mode, the folder name is
“FLDRxxx,” and the file name depends on the
recording source (CD-DA disc or MP3 disc).
2)
Up to 32 characters of the name are assigned.
3)
Folder numbers are assigned serially
thereafter up to the maximum 999 (including
the “ROOT” and “MUSIC” folders).
4)
File numbers are assigned serially thereafter.
5)
A new file is recorded in the “REC1001” folder each time REC1 recording is
performed.
1)
Continued

15GB
Notes
Do not remove the USB device during
recording or erase operations. Doing so
may corrupt the data on the USB device or
damage the USB device itself.
Do not connect the system and the USB
device through an USB hub.
When recording from a CD, the tracks
are recorded as 128 kbps MP3 files. When
recording from an MP3 disc, MP3 files
are recorded with the same bit rate as the
original MP3 files.
While recording from an MP3 disc, no sound
is output and “HI-SPEED” appears.
CD text information is not recorded in the
created MP3 files.
If you cancel the recording partway, an
MP3 file is created up to the point when the
recording was stopped.
Recording stops automatically if:
 the USB device runs out of space during
recording.
 the number of MP3 files on the USB
device reaches the limit for the number
that the system can recognize.
The maximum number of MP3 files and
folders that can be contained on a single USB
device is 999 (including the “ROOT” and
“MUSIC” folders).
The maximum number of MP3 files and
folders may vary depending on the MP3 file
and folder structure.
You cannot erase MP3 files and folders in
shuffle play mode or program play mode.
If the folder to be erased contains non-MP3
format files or sub folders, these are not
erased.
If a folder or file that you are trying to record
already exists on the USB device with the
same name, a sequential number is added
after the name without overwriting the
original folder or file.
Listening to music of
an USB device
You can listen to music stored in the USB
device.
The audio format that can be played back
by this system is MP3* only.
See “Playable/Recordable USB devices”
(page 31) for a list of USB devices that
can be connected to this system.
* Files with copyright protection (Digital
Rights Management) cannot be played by
this system.
1 Select the USB function.
Press USB .
2 Connect an optional USB device
to the
unit.
(USB) port  on the
When the USB device is connected,
the display changes as follows:
“READING”  “STORAGE
DRIVE*”
* When connecting USB storage media,
the volume label is displayed next if
recorded.
Note
It may take about 10 seconds before
“READING” appears depending on the
type of USB device connected.
3 Start playback.
Press  (or USB  on the unit)
.
4 Adjust the volume.
Press VOLUME +/ (or VOL +/ on
the unit) .
16GB
Other operation
Select a file
/ .
Find a point in Hold down /
 during playback,
a file
and release the button
at the desired point.
Select Repeat REPEAT  repeatedly
Play
until “REP” or “REP1”
appears.
Remove the
Hold down   on
USB device
the unit in stop mode
until “NO DEVICE”
appears, then remove
the USB device.
* When playing a VBR MP3 file, the system
may resume playback from a different point.
To change the play mode
Press PLAY MODE  repeatedly while
the USB device is stopped. You can
select normal play (“ ” for all files in
the folder on the digital music player),
shuffle play (“SHUF” or “
SHUF”), or
program play (“PGM”).
Notes on the USB device
You cannot change the play mode during
playback.
Some time may be needed to start playback
when:
 the folder structure is complex.
 the memory capacity is excessive.
Basic Operations
To
Press
Pause playback  (or USB  on
the unit) . To resume
play, press the button
again.
Stop playback  . To resume play,
press  (or USB
 on the unit) *.
To cancel resume play,
press   again.
Select a folder
+/ .
When the USB device is inserted, the system
reads all the files on the USB device. If there
are many folders or files on the USB device,
it may take a long time to finish reading the
USB device.
Do not connect the system and the USB
device through an USB hub.
With some connected USB devices, after an
operation is performed, there may be a delay
before it is performed by this system.
This system does not necessarily support all
the functions provided in a connected USB
device.
Files recorded by this system are played back
in the order of folder creation. Files recorded
by a device other than this system such as
a computer may not be played back in the
order in which they were recorded.
The playback order for the system may differ
from the playback order of the connected
USB device.
Always hold down   and make sure that
“NO DEVICE” appears before removing the
USB device. Removing the USB device while
“NO DEVICE” is not displayed may corrupt
the data on it or damage the USB device
itself.
Do not save other types of files or
unnecessary folders on an USB device that
has MP3 files.
Folders that have no MP3 files are skipped.
The system can only play MP3 files that have
a file extension of “.MP3”.
If there are files on the USB device that have
the “.MP3” file extension, but that are not
MP3 files, the unit may produce noise or may
malfunction.
The maximum number of MP3 files and
folders that can be contained on a single USB
device is 999 (including the “ROOT” and
“MUSIC” folders).
The maximum number of MP3 files and
folders may vary depending on the file and
folder structure.
Compatibility with all MP3 encoding/writing
softwares, recording devices, and recording
media cannot be guaranteed. Incompatible
USB device may produce noise or interrupted
audio or may not play at all.
17GB
Using optional audio
components
1 Connect additional audio
component to the AUDIO
IN jack  on the unit using
an audio analog cord (not
supplied).
2 Turn down the volume.
Press VOLUME  (or VOL  on the
unit) .
3 Select the AUDIO IN function.
Press AUDIO IN  on the unit.
4 Start playing the connected
component.
5 Adjust the volume.
Press VOLUME +/ (or VOL +/ on
the unit) .
18GB
Adjusting the sound
To add a sound effect
To
Generate a
more dynamic
sound
(Dynamic
Sound
Generator
X-tra)
Set the sound
effect
Press
DSGX  on the unit.
EQ  repeatedly
to select “BASS”
or “TREBLE,” and
then press +/ 
repeatedly to adjust the
level.
Changing the display
Press
DISPLAY  repeatedly
when the system is on.
DISPLAY  when
the system is off2). The
clock is displayed for 8
seconds.
For example, you can view CD/MP3 disc
information or the USB device information,
such as the track or file number or folder
name during normal play, or the total
playing time while the player is stopped.
2)
The STANDBY indicator  on the unit
lights up when the system is off.
1)
Basic Operations
To
Change
information on
the display1)
Check the
clock when the
system is off
Notes on the display information
Characters that cannot be displayed appear
as “_”.
The following are not displayed:
 total playing time for a CD-DA disc
depending on the play mode.
 total playing time and remaining playing
time for an MP3 disc and USB device.
The following are not displayed correctly:
 folder and file names that do not follow
either the ISO9660 Level 1, Level 2 or
Joliet in the expansion format.
The following are displayed:
 ID3 tag information for MP3 files when
ID3 version 1 and version 2 tags are used
(up to 62 characters for an MP3 disc).
 The Russian model can display
information in Russian characters, but the
characters may not be displayed correctly
for discs created with some encoding/
writing software and some recording
device.
19GB
Other Operations
Creating your own
program
(Program Play)
Use buttons on the remote to create your
own program.
1 Select the desired function.
CD
Press CD  to select the CD
function.
USB
Press USB  to select the USB
function.
2 Press PLAY MODE  repeatedly
until “PGM” appears while the
system is stopped.
3 Press /  repeatedly
until the desired track or file
number appears.
When programming files, press
+/  repeatedly to select the
desired folder, and then select the
desired file.
Example: When programming tracks
on a CD
Selected track or file number
20GB
Total playing time of
program (including
selected track or file)
4 Press ENTER  to add the track
or file to the program.
CD
“ . ” appears when the total
program time exceeds 100 minutes
for a CD, or when you select a CD
track whose number is 21 or over, or
when you select an MP3 file.
USB
The total program time cannot be
displayed, so “ . ” appears.
5 Repeat steps 3 through 4 to
program additional tracks or
files, up to a total of 25 tracks or
files.
6 To play your program of tracks
or files, press  .
The program remains available until
you open the disc tray or remove
the USB device. To play the same
program again, press  .
To cancel Program Play
Press PLAY MODE  repeatedly until
“PGM” disappears while the system is
stopped.
To delete the last track or file of the
program
Press CLEAR  while the system is
stopped.
6 To call up a preset radio
Presetting radio
stations
You can preset your favorite radio
stations and tune them in instantly
by selecting the corresponding preset
number.
Use buttons on the remote to preset
stations.
“Listening to the radio” (page
13)).
2 Press TUNER MEMORY .
Other Operations
1 Tune in the desired station (see
station, press TUNING MODE
 repeatedly until “PRESET”
appears, and then press +/ 
repeatedly to select the desired
preset number.
Preset number
3 Press +/  repeatedly to
select your desired preset
number.
If another station is already assigned
to the selected preset number,
the station is replaced by the new
stations.
4 Press ENTER .
5 Repeat steps 1 through 4 to
store other stations.
You can preset up to 20 FM and 10
AM stations. The preset stations are
retained for about half a day even if
you disconnect the power cord or if a
power failure occurs.
21GB
Using the Timers
The system offers two timer functions.
If you use the Play Timer with the Sleep
Timer, the Sleep Timer has priority.
Sleep Timer:
You can fall asleep to music. This
function works even if the clock is not
set.
Press SLEEP  repeatedly.
5 Use the same procedure as in
step 4 to set the time to stop
playing.
6 Select the sound source.
Press /  repeatedly until
the desired sound source appears, and
then press ENTER . The display
shows the timer settings.
7 Press /  to turn off the
system.
If you select “AUTO,” the system
automatically turns off after the current
disc or USB device stops or in 100
minutes.
Play Timer:
You can wake up to CD, tuner or optional
USB device at a preset time.
Use buttons on the remote to control the
Play Timer. Make sure you have set the
clock.
1 Prepare the sound source.
Prepare the sound source, and then
press VOLUME +/  to adjust the
volume.
To start from a specific track or file,
create your own program (page 20).
2 Press CLOCK/TIMER SET .
3 Press /  repeatedly
to select “PLAY SET,” and then
press ENTER .
“ON” appears, and the hour
indication flashes.
4 Set the time to start playing.
Press /  repeatedly to set
the hour, and then press ENTER .
The minute indication flashes. Use the
procedure above to set the minutes.
22GB
The system turns on 15 seconds
before the preset time. If the system is
on at the preset time, the Play Timer
will not play.
To activate or check the timer again
Press CLOCK/TIMER SELECT , press
/  repeatedly until “PLAY
SEL” appears, and then press ENTER .
To cancel the timer
Repeat the same procedure as above until
“TIMER OFF” appears, and then press
ENTER .
To change the setting
Start over from step 1.
Tip
The Play Timer setting remains as long as the
setting is not canceled manually.
Others
Troubleshooting
1 Make sure the power cord and
speaker cords are correctly and firmly
connected.
2 Find your problem in the checklist
If the STANDBY indicator flashes
Immediately unplug the power cord,
and check the following items.
If your system has a voltage
selector, is the voltage selector set to
the correct voltage?
Are you using only the supplied
speakers?
Is anything blocking the ventilation
holes on the top or back of the
system?
After the STANDBY indicator 
stops flashing, reconnect the power
cord, and turn on the system. If the
issue persists, contact your nearest
Sony dealer.
General
Sound comes from one channel,
or the left and right volumes are
unbalanced.
Place the speakers as symmetrically as
possible.
Connect only the supplied speakers.
Severe hum or noise.
Move the system away from sources of
noise.
The remote does not function.
Remove any obstacles between the
remote and the remote sensor  on
the unit, and position the unit away
from fluorescent lights.
Point the remote at the system’s sensor.
Move the remote closer to the system.
CD/MP3 player
The sound skips, or the disc will not
play.
Wipe the disc clean, and replace it.
Move the system to a location away
from vibration (for example, on top of
a stable stand).
Move the speakers away from the
system, or place them on separate
stands. At high volume, speaker
vibration may cause the sound to skip.
Others
below, and take the indicated
corrective action.
If the issue persists, contact your
nearest Sony dealer.
Connect the system to a different wall
socket.
Install a noise filter (available
separately) to the power cord.
Play does not start from the first
track.
Press PLAY MODE  repeatedly until
both “PGM” and “SHUF” disappear to
return to normal play.
Starting playback takes more time
than usual.
The following discs take a longer time
to start playback.
a disc recorded with a complicated
tree structure.
a disc recorded in multisession
mode.
a disc that has not been finalized (a
disc to which data can be added).
a disc that has many folders.
Continued

23GB
USB device
You cannot start recording to an USB
device.
The following problems may have
occurred.
The USB device is full.
The number of MP3 files and folders
on the USB device has reached the
upper limit.
The USB device is write-protected.
Recording is stopped before it is
finished.
You are using an unsupported USB
device. See “Playable/Recordable USB
devices” (page 31) for the supported
device types.
The USB device is not formatted
correctly. Refer to the USB device
operation manual for how to format.
Turn off the system and remove the
USB device. If the USB device has a
power switch, turn the USB device
off and then on again after removing
it from the system. Then perform
recording again.
If the recording and erase operations
are repeated multiple times, the file
structure within the USB device
becomes complex. Refer to the USB
device operation manual for how to
deal with this problem. If the problem
persists, contact your nearest Sony
dealer.
Recording to an USB device results in
an error.
You are using an unsupported USB
device. See “Playable/Recordable USB
devices” (page 31) for the supported
device types.
24GB
Turn off the system and remove the
USB device. If the USB device has a
power switch, turn the USB device
off and then on again after removing
it from the system. Then perform
recording again.
The USB device was disconnected
or the power was turned off during
recording. Delete the partiallyrecorded file, and record again. If this
does not fix the problem, the USB
device may be broken. Refer to the
USB device operation manual for
how to deal with this problem. If the
problem persists, contact your nearest
Sony dealer.
MP3 files or folders on the USB
device cannot be erased.
Check if the USB device is writeprotected.
The USB device was disconnected
or the power was turned off during
the erase operation. Delete the
partially-erased file. If this does not
fix the problem, the USB device may
be broken. Refer to the USB device
operation manual for how to deal with
this problem. If the problem persists,
contact your nearest Sony dealer.
Are you using a supported USB
device?
If you connect an unsupported USB
device, the following problems may
occur. See “Playable/Recordable USB
devices” (page 31) for the supported
device types.
The USB device is not recognized.
File or folder names are not
displayed on this system.
Playback is not possible.
The sound skips.
There is noise.
A distorted sound is output.
Recording stops before it is finished.
“OVER CURRENT” appears.
A problem has been detected with the
level of electrical current from the
(USB) port . Turn off the system and
remove the USB device from the
(USB) port . Make sure there is no
problem with the USB device. If this
display pattern persists, contact your
nearest Sony dealer.
There is noise, skipping, or distorted
sound.
Turn off the system and reconnect the
USB device, then turn on the system.
The music data itself contains noise, or
the sound is distorted. Noise may have
entered during the recording process.
Delete the file, and try recording again.
The USB device cannot be connected
into the
(USB) port .
The USB device is being connected
backwards. Connect the USB device in
the correct orientation.
“READING” is displayed for an
extended time, or it takes a long time
before playback starts.
The reading process can take a long
time in the following cases.
There are many folders or files on the
USB device.
The file structure is extremely
complex.
The memory capacity is excessive.
The internal memory is fragmented.
Thus, we recommend following these
guidelines.
Total folders on USB device: 100 or
less
Total files per folder: 100 or less
The USB device is not recognized.
Turn off the system and reconnect the
USB device, then turn on the system.
Connect the supported USB device
(page 31).
The USB device does not work
properly. Refer to the USB device
operation manual for how to deal with
this problem. If the problem persists,
contact your nearest Sony dealer.
Others
There is no sound.
The USB device is not connected
correctly. Turn off the system and
reconnect the USB device, then turn
on the system and check if the USB
MEMORY indicator  lights up.
Erroneous display
Send the music data to the USB device
again, as the data stored in the USB
device may have been corrupted.
The character codes that can be
displayed by this system are numbers
and alphabet only. Other characters are
not displayed correctly.
Play does not start.
Turn off the system and reconnect the
USB device, then turn on the system.
Connect the supported USB device
(page 31).
Press  (or USB  on the unit)
 to start play.
Play does not start from the first
track.
Set the play mode to Normal Play
mode.
MP3 file cannot be played back.
The MP3 file does not have the
extension “.MP3”.
The data is not stored in MP3 format.
USB storage media formatted with file
systems other than FAT16 or FAT32
are unsupported.*
If you use partitioned USB storage
media, only MP3 files on the first
partition can be played.
Playback is possible up to 8 levels.
Continued

25GB
The number of folders has exceeded
999.
The number of files has exceeded 999.
Files that are encrypted or protected by
passwords, etc. cannot be played back.
* This system supports FAT16 and FAT32, but
some USB storage media may not support all
of these FAT. For details, see the operation
manual of each USB storage media or
contact the manufacturer.
Tuner
Severe hum or noise, or stations
cannot be received. (“TUNED” or “ST”
flashes on the display.)
Connect the antenna properly.
Find a location and an orientation that
provide good reception, and then set
up the antenna again.
Keep the antennas away from the
speaker cords, the power cord and the
USB cable to avoid picking up noise.
Connect a commercially available
external antenna.
Consult your nearest Sony dealer if the
supplied AM antenna has come off the
plastic stand.
Turn off nearby electrical equipment.
To change the AM tuning interval
The AM tuning interval is factory-preset
to 9 kHz (or 10 kHz, for some areas; this
function is not available on the Russian
model).
Use buttons on the unit to change the
AM tuning interval.
1 Tune in any AM station, and then
turn off the system.
2 While holding down TUNER/BAND
, press / .
All the AM preset stations are erased.
To reset the interval to the factory
preset, repeat the procedure.
26GB
To improve tuner reception
Turn off CD player power by using the
CD power management function. By
default, CD power is turned on.
1 Press FUNCTION  repeatedly to
select the CD function, and then turn
off the system.
2 After “STANDBY” stops flashing, press
/  on the unit while holding
down /CANCEL  on the unit.
“CD POWER OFF” appears. With CD
player power turned off, disc access
time is increased. To turn on CD
player power, repeat the procedure
until “CD POWER ON” appears.
To reset the system to factory settings
If the system still does not operate
properly, reset the system to factory
settings.
Use buttons on the unit to reset the
system to its factory default settings.
1 Disconnect and reconnect the power
cord, and then turn on the system.
2 Press
  , /CANCEL  and
/  at the same time.
All user-configured settings, such as
preset radio stations, timer, and the
clock, are deleted.
Messages
CD/MP3 player, Tuner
COMPLETE: The MP3 file or folder on
the USB device has been erased.
DEVICE FULL: The USB device is full.
ERASE ERROR: Erase of MP3 files or
folders on the USB device failed.
ERROR: The USB device could not be
recognized or an unknown device is
connected (page 25).
FATAL ERROR: The USB device was
disconnected while recording to or
erasing MP3 files or folders on the USB
device.
FLDR FULL: The number of folders
on the USB device has reached the
maximum.
INVALID: You have made an invalid or
currently prohibited operation.
NO DEVICE: No USB device is connected
or the connected USB device has been
stopped.
NO STEP: All of the programmed tracks
or files have been erased.
NO TRACK: No playable file is loaded in
the system.
NOT SUPPORTED: An unsupported
USB device is connected.
PLEASE WAIT: The system is readying
for usage of an USB device.
PROTECTED: You tried to record or
erase a write-protected USB device.
READING: The system is recognizing the
USB device.
REC ERROR: Recording did not start,
stopped partway, or otherwise could
not be performed (page 24).
REMOVED: The USB device has been
removed.
STEP FULL: You tried to program more
than 26 tracks or files (steps).
STORAGE DRIVE: USB storage media is
connected.
TRK FULL: The number of files on the
USB device has reached the maximum.
Continued

Others
CD OVER: You have reached the end of
the disc while pressing   during
playback or pause.
COMPLETE: The preset operation ended
normally.
INVALID: You pressed an invalid button.
LOCKED: The disc tray does not open.
Contact your nearest Sony dealer.
NO DISC: There is no disc in the system,
or you have loaded a disc that cannot
be played.
NO STEP: All of the programmed tracks
or files have been erased.
PUSH SELECT: You tried to set the clock
or timer during timer operation.
PUSH STOP: You pressed PLAY MODE
 during playback.
READING: The system is reading
information of the disc. Some buttons
are not available.
SET CLOCK: You tried to select the timer
when the clock is not set.
SET TIMER: You tried to select the timer
when the Play Timer is not set.
STEP FULL: You tried to program more
than 26 tracks or files (steps).
TIME NG: The Play Timer start and end
times are set to the same time.
USB device
27GB
Display examples
Display
indicates
2 (two)
5 (five)
6 (six)
8 (eight)
0 (zero)
A
B
D
G
H
K
M
O
Q
R
S
Z
|
”
$
%
,
.
?
@
^
28GB
Precautions
Discs that this system CAN play
Audio CD
CD-R/CD-RW (audio data/MP3 files)
Discs that this system CANNOT play
CD-ROM
CD-R/CD-RW other than those
recorded in music CD format or MP3
format conforming to ISO9660 Level
1/Level 2, Joliet or multisession
CD-R/CD-RW recorded in
multisession that have not ended by
“closing the session”
CD-R/CD-RW of poor recording
quality, CD-R/CD-RW that have
scratches or are dirty, or CD-R/CDRW recorded with an incompatible
recording device
CD-R/CD-RW which is finalized
incorrectly
Discs containing files other than
MPEG 1 Audio Layer-3 (MP3) files
Discs of non-standard shape (for
example, heart, square, star)
Discs that have adhesive tape, paper, or
sticker attached to them
Rental or used discs with attached seals
where the glue extends beyond the seal
Discs that have labels printed using ink
that feels tacky when touched
Notes on discs
Before playing, wipe the disc with a
cleaning cloth from the center out to
the edge.
Do not clean discs with solvents, such
as benzine, thinner, or commercially
available cleaners or anti-static spray
intended for vinyl LPs.
Do not expose discs to direct sunlight
or heat sources such as hot air ducts,
nor leave it in a car parked in direct
sunlight.
On safety
Completely disconnect the power
cord (mains lead) from the wall socket
(mains) if it is not going to be used
for an extended period of time. When
unplugging the unit, always grip the
plug. Never pull the cord itself.
Should any solid object or liquid get
into the system, unplug the system, and
have it checked by qualified personnel
before operating it again.
The AC power cord can be changed
only by a qualified service facility.
Cleaning the cabinet
Clean this system with a soft cloth
slightly moistened with a mild detergent
solution. Do not use any type of abrasive
pad, scouring powder, or solvent, such as
thinner, benzine, or alcohol.
Others
On placement
Do not place the system in an inclined
position or in locations that are
extremely hot, cold, dusty, dirty, or
humid or lacking adequate ventilation,
or subject to vibration, direct sunlight
or a bright light.
Be careful when placing the unit
or speakers on surfaces that have
been specially treated (for example,
with wax, oil, polish) as staining or
discoloration of the surface may result.
If the system is brought directly
from a cold to a warm location or is
placed in a very damp room, moisture
may condense on the lens inside the
CD player, and cause the system to
malfunction. In this situation, remove
the disc, and leave the system turned
on for about an hour until the moisture
evaporates.
On the speaker system
This speaker system is not magnetically
shielded, and the picture on nearby TV
sets may become magnetically distorted.
In this situation, turn off the TV, wait
15 to 30 minutes, and turn it back on.
If there is no improvement, move the
speakers far away from the TV.
On heat buildup
Heat buildup on the unit during
operation is normal and is not cause
for alarm.
Do not touch the cabinet if it has been
used continuously at a high volume
because the cabinet may have become
hot.
Do not obstruct the ventilation holes.
29GB
Specifications
Main unit
Amplifier section
Russian model:
DIN power output (rated):
18 + 18 watts (6 ohms at 1 kHz, DIN)
Continuous RMS power output
(reference): 25 + 25 watts (6 ohms at
1 kHz, 10% THD)
Music power output (reference):
38 + 38 watts (6 ohms at 1 kHz, 10%
THD)
Other models:
DIN power output (rated):
18 + 18 watts (6 ohms at 1 kHz, DIN)
Continuous RMS power output
(reference): 25 + 25 watts (6 ohms at
1 kHz, 10% THD)
Inputs:
AUDIO IN (stereo mini jack):
voltage 250 mV, impedance
47 kilohms
(USB) port: Type A, maximum
current 500 mA
Outputs:
PHONES (stereo mini jack): accepts
headphones of 8 ohms or more
SPEAKER: accepts impedance of 6 to
16 ohms
USB section
Supported bit rate
MP3 (MPEG 1 Audio Layer-3):
32  320 kbps, VBR
Sampling frequencies
MP3 (MPEG 1 Audio Layer-3):
32/44.1/48 kHz
(USB) port
USB-A (Full Speed)
30GB
CD player section
System: Compact disc and digital audio
system
Laser Diode Properties
Emission duration: continuous
Laser Output*: Less than 44.6µW
*This output is the value measurement
at a distance of 200mm from the
objective lens surface on the Optical
Pick-up Block with 7mm aperture.
Frequency response: 20 Hz  20 kHz
Signal-to-noise ratio: More than 90 dB
Dynamic range: More than 90 dB
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section:
Tuning range:
87.5  108.0 MHz (50 kHz step)
Antenna: FM lead antenna
Antenna terminals: 75 ohms unbalanced
Intermediate frequency: 10.7 MHz
AM tuner section:
Tuning range
Russian model:
531  1,602 kHz (with 9 kHz tuning
interval)
Other models:
530  1,710 kHz (with 10 kHz tuning
interval)
531  1,710 kHz (with 9 kHz tuning
interval)
Antenna: AM loop antenna, external
antenna terminal
Intermediate frequency: 450 kHz
Speaker
Speaker system: Full Range 10 cm, cone
type
Nominal impedance: 6 ohms
Dimensions (w/h/d): Approx. 140 × 245 ×
210 mm
Mass: Approx. 1.9 kg net per speaker
General
Standby power consumption:
0.5 W
Halogenated flame retardants
are not used in the certain
printed wiring boards.
Halogenated flame retardants
are not used in cabinets.
Playable/Recordable
USB devices
You can use the following Sony USB
devices on this system. Other USB
devices are not playable/recordable on
this system.
Verified Sony digital music player (as
of April 2007)
Product name Model name
NWD-B103 / B103F /
Walkman
B105 / B105F
®
Others
Power requirements
Russian model: 230 V AC, 50/60 Hz
Mexican model: 120 V AC, 60 Hz
Argentine model: 220 V AC, 50/60 Hz
Other models: 120 V, 220 V, 230 
240 V AC, 50/60 Hz, adjustable with
voltage selector
Power consumption: 65 watts
Dimensions (w/h/d) (excl. speakers):
Approx. 200 × 132 × 298 mm
Mass (excl. speakers): Approx. 3.7 kg
Supplied accessories: Remote Commander
(1), R6 (Size AA) batteries (2), AM loop
antenna (1), FM lead antenna (1)
Design and specifications are subject to
change without notice.
Verified Sony USB storage media (as of
April 2007)
Product name Model name
MICROVAULT USM512EX / 1GEX /
2GEX
USM128J / 256J / 512J /
1GJ / 2GJ / 4GJ
USM512JX / 1GJX /
2GJX / 4GJX
USM256H / 512H /
1GH / 2GH / 4GH
Continued

31GB
Check the websites below for the latest
information about compatible devices.
For customers in Europe:
<http://sonydigital-link.com/dna>
For customers in Latin America:
<http://www.sony-latin.com/pa/info>
For customers in Asia and Oceania:
<http://www.css.ap.sony.com/>
Notes
When formatting the above models, be
sure to format using the model itself or the
dedicated formatting software for that model.
Otherwise, you may be unable to record the
USB device properly on this system.
Do not use USB devices other than these
USB devices. Operation of models not listed
here is not guaranteed.
Operation may not always be ensured even
when using these USB devices.
Some of these USB devices may not be
available for purchase in certain areas.
Printed in China