Notice for customers: the following
information is only applicable to
equipment sold in countries applying EU
directives.
Unit
Notes on playing multisession discs
Getting Started
If the first session on the disc is a CD-DA session, the other sessions
on the disc cannot be recognized regardless of the session format;
only CD-DA tracks in the first session can be played back.
If the session format for the first session is CD-ROM and the
following sessions are recorded in the same format, the system will
continue to play back MP3 files accordingly in multiple sessions
until the system encounters another session recorded in a different
format.
The manufacturer of this product is Sony Corporation,
1-7-1 Konan Minato-ku, Tokyo, 108-0075 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)
Important Safety Instructions
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
opening of the apparatus with newspapers, tablecloths,
curtains, etc. Do not place the naked flame sources such
as lighted candles on the apparatus.
To reduce the risk of fire or electric shock, do not expose
this apparatus to dripping or splashing, and do not place
objects filled with liquids, such as vases, on the apparatus.
Do not install the appliance in a confined space, such as a
bookcase or built-in cabinet.
As the main plug is used to disconnect the unit from the
mains, 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 expose batteries or apparatus with batteryinstalled to excessive heat such as sunshine, fire or the
like.
The unit is not disconnected from the mains as long as it
is connected to the AC outlet, even if the unit itself has
been turned off.
CAUTION
The use of optical instruments with this product will
increase eye hazard.
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.
Notice for the customers in the U.S.A. and
Canada
This symbol is intended to alert the
user to the presence of uninsulated
“dangerous voltage” within the
product’s enclosure that may be of
sufficient magnitude to constitute a risk
of electric shock to persons.
This symbol is intended to alert the
user to the presence of important
operating and maintenance (servicing)
instructions in the literature
accompanying the appliance.
Owner’s Record
The model and serial numbers are located on the rear of
the unit. Record these numbers in the space provided
below. Refer to them whenever you call upon your Sony
dealer regarding this product.
Model No.
Serial No.
1)
2)
3)
4)
5)
6)
7)
Read these instructions.
Keep these instructions.
Heed all warnings.
Follow all instructions.
Do not use this apparatus near water.
Clean only with dry cloth.
Do not block any ventilation openings. Install in
accordance with the manufacturer’s instructions.
8) Do not install near any heat sources such as radiators,
heat registers, stoves, or other apparatus (including
amplifiers) that produce heat.
9) Do not defeat the safety purpose of the polarized or
grounding-type plug. A polarized plug has two blades
with one wider than the other. A grounding type
plug has two blades and a third grounding prong.
The wide blade or the third prong are provided for
your safety. If the provided plug does not fit into your
outlet, consult an electrician for replacement of the
obsolete outlet.
10)Protect the power cord from being walked on
or pinched particularly at plugs, convenience
receptacles, and the point where they exit from the
apparatus.
11)Only use attachments/accessories specified by the
manufacturer.
12)Use only with the cart, stand, tripod,
bracket, or table specified by the
manufacturer, or sold with the apparatus.
When a cart is used, use caution when
moving the cart/apparatus combination to
avoid injury from tip-over.
13)Unplug this apparatus during lightning storms or
when unused for long periods of time.
14)Refer all servicing to qualified service personnel.
Servicing is required when the apparatus has been
damaged in any way, such as power-supply cord or
plug is damaged, liquid has been spilled or objects
have fallen into the apparatus, the apparatus has
been exposed to rain or moisture, does not operate
normally, or has been dropped.
The following FCC statement applies only
to the version of this model manufactured
for sale in the U.S.A. Other versions may
not comply with FCC technical regulations.
NOTE:
This equipment has been tested and found to comply
with the limits for a Class B digital device, pursuant
to Part 15 of the FCC Rules. These limits are designed
to provide reasonable protection against harmful
interference in a residential installation. This equipment
generates, uses and can radiate radio frequency energy
and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio
communications. However, there is no guarantee that
interference will not occur in a particular installation.
If this equipment does cause harmful interference to
radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged
to try to correct the interference by one or more of the
following measures:
 Reorient or relocate the receiving antenna.
 Increase the separation between the equipment and
receiver.
 Connect the equipment into an outlet on a circuit
different from that to which the receiver is connected.
 Consult the dealer or an experienced radio/TV
technician for help.
CAUTION
You are cautioned that any changes or modifications
not expressly approved in this manual could void your
authority to operate this equipment.
This symbol on the battery or on the packaging indicates
that the battery provided with this product shall not be
treated as household waste.
On certain batteries this symbol might be used in
combination with a chemical symbol. The chemical
symbols for mercury (Hg) or lead (Pb) are added if the
battery contains more than 0.0005% mercury or 0.004%
lead.
By ensuring these batteries are disposed of correctly,
you will help prevent potentially negative consequences
for the environment and human health which could
otherwise be caused by inappropriate waste handling of
the battery. The recycling of the materials will help to
conserve natural resources.
In case of products that for safety, performance or data
integrity reasons require a permanent connection with an
incorporated battery, this battery should be replaced by
qualified service staff only. To ensure that the battery will
be treated properly, hand over the product at end-of-life
to the applicable collection point for the recycling of
electrical and electronic equipment.
For all other batteries, please view the section on how
to remove the battery from the product safely. Hand the
battery over to the applicable collection point for the
recycling of waste batteries.
For more detailed information about recycling of this
product or battery, please contact your local Civic Office,
your household waste disposal service or the shop where
you purchased the product.
Listening to the radio
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
License and Trademark Notice
iPod is a trademark of Apple Inc., registered in the U.S.
and other countries.
iPhone is a trademark of Apple Inc.
MPEG Layer-3 audio coding technology and patents
licensed from Fraunhofer IIS and Thomson.
Windows Media is either a registered trademark or
trademark of Microsoft Corporation in the United
States and/or other countries.
This product is protected by certain intellectual
property rights of Microsoft Corporation. Use or
distribution of such technology outside of this product
is prohibited without a license from Microsoft or an
authorized Microsoft subsidiary.
All other trademarks and registered trademarks are of
their respective holders. In this manual, and marks
are not specified.
™
®
1 Select “DAB” or “FM.”
Remote
Press FUNCTION +/  repeatedly.
2 Perform tuning.
or
For automatic scanning
or
 FM/DAB lead antenna (Extend it horizontally.)
 White side for North American model
 Brown side for other countries/regions
 To wall outlet
 Connect white side.
 To DAB external antenna (not supplied)
 75-ohm coaxial cable with F male type connector (not supplied)
 To left speaker
 To right speaker
 FM antenna
To attach the speaker pads
Find a location and an orientation that provide good
reception, and then set up the antenna.
Keep the antennas away from the speaker cords and the
power cord to avoid picking up noise.
Attach the supplied speaker pads to the bottom of the
speakers to prevent slipping.
 Power
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.
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.
Connect the power cord to a wall outlet.
The demonstration appears in the display. When
you press  , the system turns on and the
demonstration automatically ends.
If the plug does not fit the wall outlet, detach the supplied
plug adaptor (only for models equipped with an adaptor).
 DAB antenna (CMT-MX550i only)
With a DAB external antenna (not supplied), you can
obtain higher DAB/DAB+ broadcast sound quality. We
recommend that you use the supplied FM/DAB lead
antenna only temporarily until you install a DAB external
antenna.
 Speakers
Notes on using the remote
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.
Notes on DAB/DAB+ stations
To use the iPod/iPhone
Open the panel where it says “PULL OPEN” , and
insert a Dock Adapter into the Dock before use. When
using an iPod model, use the Dock Adapter supplied
with your iPod. When using an iPhone model, use the
Dock Adapter supplied with the system. For details on
the supplied Dock Adapters, refer to the instructions
supplied with the Dock Adapters.
Dock Adapter
iPod/iPhone Connector
Red ()
1 Remove a disc to protect the CD mechanism.
2 Press FUNCTION  repeatedly to select the CD
3 While holding down TOOL MENU , hold down
 (power)  until “STANDBY” appears.
To set the clock
1 Press   to turn on the system.
2 Press TIMER MENU  to select the clock set mode.
If “PLAY SET?” flashes, press /  repeatedly to
select “CLOCK SET?,” and then press
(enter) .
.
4 Use the same procedure to set the minutes.
Note
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.
Reception of DAB/DAB+ radio station
(CMT-MX550i only)
When you turn on the system for the first time after
you purchase the system, DAB Automatic Scan starts
automatically and creates a list of available services.
During the DAB Automatic Scan, “
” appears.
Do not press any button on the unit or the remote
during DAB Automatic Scan. Scanning is interrupted
and service list may not be created properly. To run the
DAB Automatic Scan manually, perform the procedure
of “Running the DAB Automatic Scan manually” in
“Listening to the radio.” If you have moved to another
area, perform the DAB Automatic Scan manually and
re-register the contents of broadcasts.
Tip
To reduce static noise on a weak FM stereo station, press FM MODE
 repeatedly until “MONO” appears to turn off stereo reception.
Running the DAB Automatic Scan manually
1 Press FUNCTION +/  repeatedly to select “DAB.”
2 Press TOOL MENU  to start the DAB Automatic
Scan.
“Init Scan?” and “Push ENTER” appear.
 to perform scanning.
Scanning begins. The scanning progress is indicated
by advancing squares (
). Depending on the
DAB/DAB+ services available in your area, scanning
may take a few minutes.
To remove the Dock Adapter, pull it up with your
fingernail or a flat object using the slot inside the adapter.
To close the panel, slide the release lever  to the
UNLOCK position, and then close the panel.
function.
When tuning in a DAB/DAB+ station, it may take a few seconds
before you hear any sound.
Primary service is automatically received when secondary service
ends.
This tuner does not support data services.
3 Press
Insert only the stripped portion
of the speaker cords.
Use buttons on the unit.
If “TUNED” does not light up and the scanning
for an FM station does not stop, press   to stop
scanning, then perform manual tuning (below).
When you tune in a DAB/DAB+ station or an FM
station that provides RDS services, the service name
or station name appears on the display.
Press TUNING MODE  repeatedly until “AUTO”
and “PRESET” disappear, and then press +/ 
repeatedly to tune in the desired station.
Except for North American model, connect the other end
of the speaker cords to the terminals on the speakers as
shown below.
When carrying this system
Press TUNING MODE  repeatedly until “AUTO”
appears, and then press +/ . Scanning stops
automatically when a station is tuned in, and
“TUNED” and “STEREO” (for stereo programs only)
light up in the display.
For manual tuning (FM band only)
Connect the speaker cords to the SPEAKERS jacks on
the unit.
3 Press /  repeatedly to set the hour, then press
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.
Note that the reception of RDS services is only available
for European model, and the DAB/DAB+ tuning is only
available for CMT-MX550i.
or
4 After “LOCK” appears, unplug the power cord.
Note on DualDiscs
1 Select the iPod function.
Press FUNCTION +/  repeatedly.
2 Place the iPod/iPhone.
3 Start playback.
Press  .
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
Disposal of waste batteries
(applicable in the European
Union and other European
countries with separate
collection systems)
Playing the iPod/iPhone
When scanning is complete, a list of available services
is created.
Notes
If your country or region does not support DAB/DAB+ broadcast,
“No Service” appears.
This procedure clears all previously stored presets.
Before unplugging the DAB/FM antenna, make sure the system is
turned off to preserve your own DAB/DAB+ settings.
Operations
Playing a CD/MP3 disc
1 Select the CD function.
Press FUNCTION +/  repeatedly.
2 Place a disc.
Press  (open)  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.
3 Start playback.
Press  (play) .
Other operations
To
Pause playback
Stop playback
Select a folder on
an MP3 disc
Select a track or
file
Find a point in a
track or file
Select Repeat Play
Press
 (pause) . To resume play, press
the button again.
 (stop) .
(select folder) +/ 
repeatedly.
 (go back)/ (go forward)
.
Hold down  (rewind)/ (fast
forward)  during playback, and
release the button at the desired
point.
REPEAT  repeatedly 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*” for folder shuffle), or program play
(“PGM”).
*When playing a CD-DA (audio) disc,
same operation as normal (SHUF) Play.
(SHUF) Play performs the
Presetting radio stations
1 Tune in the desired station.
2 Press TUNER MEMORY  to select the tuner
memory mode.
Note on shuffle play mode
When you turn off the system, the selected shuffle play mode (“SHUF”
or “
SHUF”) is cleared and the play mode returns to normal play
mode (“
”).
Notes on playing MP3 discs
Do not save other types of tracks or 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”.
Even when file name has the “.mp3” file extension, if the actual
file differs, playing this file may generate a loud noise which could
damage the speaker system and the system 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.
To
Pause playback
Scroll up/down
the iPod menus
Select a track
or chapter of
audiobook/
podcast
Choose the
selected item
Find a point in a
track or chapter
of audiobook/
podcast
Return to the
previous menu or
select a menu
Press
 / .
/ .
/ . To fast-forward or
fast-rewind, hold down the button.
 /
.
Hold down /  during
playback, and release the button at
the desired point.
 /TOOL MENU /RETURN
 (return) .
To use the system as a battery charger
You can use the system as a battery charger for the iPod/
iPhone when the system is on.
The charging begins when the iPod/iPhone is placed on
the iPod/iPhone connector . The charge status appears
in the iPod/iPhone display. For details, see the user’s
guide of your iPod/iPhone.
To stop charging the iPod/iPhone
Remove the iPod/iPhone. Turning off the system also
stops charging the iPod/iPhone.
Notes
When placing or removing the iPod/iPhone, handle the iPod/iPhone
in the same angle as that of the iPod/iPhone connector on the unit
and do not twist or sway the iPod/iPhone to prevent connector
damage.
Do not carry the unit with an iPod/iPhone set on the connector.
Doing so may cause a malfunction.
When placing or removing the iPod/iPhone, brace the unit with one
hand and take care not to press the controls of the iPod/iPhone by
mistake.
Before disconnecting the iPod/iPhone, pause playback.
Hold down /  to fast-forward (fast-rewind) while
playing video if /  does not function.
When the iPhone is connected to the system and you receive a call
during playback, playback will pause and you can take an incoming
call.
To change the volume level, use VOLUME +/ . The volume level
does not change even if adjusted on the iPod/iPhone.
This system is designed for iPod/iPhone only. You cannot connect
any other portable audio players.
To use an iPod/iPhone, refer to the user’s guide of your iPod/iPhone.
Sony cannot accept responsibility in the event that data recorded to
iPod/iPhone is lost or damaged when using an iPod/iPhone with this
unit.
Playing a file of the USB device
(except for North American model)
The audio format that can be played back on this system
is MP3*/WMA*/AAC*.
* Files with DRM (Digital Rights Management) copyright protection
cannot be played back on this system.
Files downloaded from an online music store may not be played
back on this system.
Check the websites below for the information about
compatible USB devices.
For customers in Europe:
<http://support.sony-europe.com/>
For customers in Asia and Oceania:
<http://www.sony-asia.com/support>
1 Select the USB function.
Press FUNCTION +/  repeatedly.
2 Connect the USB device to the
3 Start playback.
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
playback.
To control the iPod/iPhone
3 Press +/  repeatedly to select the desired preset
number.
If another station is already assigned to the selected
preset number, the station is replaced by the new
station.
4 Press  to store the station.
5 Repeat steps 1 through 4 to store other stations.
You can preset up to 20 DAB/DAB+ and 20 FM
stations.
Press  .
Other operations
To
Pause playback
Stop playback
Select a folder
6 To call up a preset radio station, press TUNING
Select a file
Find a point in
a file
Note on presetting DAB/DAB+ stations
Select Repeat Play
MODE  repeatedly until “PRESET” appears, and
then press +/  repeatedly to select the desired
preset number.
You can preset a DAB/DAB+ service only when it can be received.
(USB) port .
Remove the USB
device
Press
 . To resume play, press the
button again.
 . To resume play, press 
*. To cancel resume play, press 
 again.
+/  repeatedly.
/ .
Hold down /  during
playback, and release the button at
the desired point.
REPEAT  repeatedly until “REP”
or “REP1” appears.
Hold down   on the unit until
“No Device” appears, then remove
the USB device.
*When playing a VBR MP3/WMA 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 USB device), shuffle play (“SHUF” or
“
SHUF”), or program play (“PGM”).
Note on Repeat Play
“REP” indicates that all audio files on a USB device are repeated until
you stop playback.
Note on shuffle play mode
When you turn off the system, the selected shuffle play mode (“SHUF”
or “
SHUF”) is cleared and the play mode returns to normal play
mode (“
”).
To select a memory on the USB device
If the USB device has more than one memory (for
example, internal memory and a memory card), you can
select which memory to use and then start playback.
You cannot select a memory during playback. Make sure
to select a memory before starting playback.
Use buttons on the unit to select a memory on the USB
device.
1 Press FUNCTION  repeatedly to select the USB
function.
Using optional audio components
1 Prepare the sound source.
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  .
3 Select the AUDIO IN function.
Press FUNCTION +/  repeatedly.
4 Start playback.
Start playback of the connected component and adjust
the volume.
2 Connect the USB device to the (USB) port .
3 Press TOOL MENU , and then press ENTER .
4 Press /  repeatedly to select a memory
Note
5 Press ENTER .
Adjusting the sound
number.
Proceed to step 5 if only one memory can be selected.
To cancel this operation, press  .
Notes
When USB cable connection is necessary, connect the USB cable
supplied with the USB device to be connected. See the operation
manual supplied with the USB device to be connected for details on
the operation method.
It may take about 10 seconds before “Reading” appears depending
on the type of USB device connected.
Do not connect the system and the USB device through a USB hub.
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.
With some connected USB devices, after an operation is performed,
there may be a delay before it is performed by this system.
Compatibility with all encoding/writing software cannot be
guaranteed. If audio files on the USB device were originally encoded
with incompatible software, those files may produce noise or
interrupted audio, or may not play at all.
This system cannot play audio files on the USB device in the
following cases;
when the number of audio files in a folder exceeds 999.
when the total number of audio files on a USB device exceeds 999.
when the number of folders on a USB device exceeds 999
(including the “ROOT” folder and empty folders).
These numbers may vary depending on the file and folder structure.
Do not save other types of files or unnecessary folders on a USB
device that has audio files.
The system can play back to a depth of 8 folders only.
This system does not necessarily support all the functions provided
in a connected USB device.
Resume play is cancelled when you turn off the system.
Folders that have no audio files are skipped.
The audio formats that you can listen to with this system are as
follows:
MP3: file extension “.mp3”
WMA: file extension “.wma”
AAC: file extension “.m4a”
Note that even when file name has the correct file extension, if the
actual file differs, the system may produce noise or may malfunction.
To use the system as a battery charger
You can use the system as a battery charger for USB
devices that have a rechargeable function when the
system is on.
The charging begins when the USB device is connected
to the
(USB) port . The charge status appears in
the USB device display. For details, see the user’s guide of
your USB device.
Creating your own program
(Program Play)
Note that the USB features are not available for North
American model.
1 Select the CD or USB function.
Press FUNCTION +/  repeatedly.
2 Select the play mode.
Press PLAY MODE  repeatedly until “PGM”
appears while the player is stopped.
3 Select the desired track or file number.
Press /  repeatedly until the desired track
or file number appears.
When programming audio files, press
+/ 
repeatedly to select the desired folder, and then select
the desired file.
Selected track or file number
Total playing time of the selected
track or file
4 Program the selected track or file.
Press
 to enter the selected track or file.
The system may enter standby mode automatically if the volume
level of the connected component is too low. Adjust the component’s
volume accordingly. See “To turn off the automatic standby function.”
To
Adjust the volume
Generate a more
dynamic sound
(Dynamic Sound
Generator X-tra)
Set the sound
effect
Press
VOLUME +/ .
DSGX  on the unit.
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 player is stopped.
To delete the last track or file of the program
Press CLEAR  while the player is stopped.
To view program information
Press DISPLAY  repeatedly.
Press TIMER MENU .
3 Set the play timer.
Press /  repeatedly to select “PLAY SET?,” then
.
press
4 Set the time to start playback.
Press /  repeatedly to set the hour, then press
. Use the procedure above to set the minutes.
5 Use the same procedure as in step 4 to set the time
to stop playback.
6 Select the sound source.
Press /  repeatedly until the desired sound
.
source appears, then press
7 Turn off the system.
Press  . The system automatically turns on
before the preset time.
If the system is on at the preset time, the Play Timer
will not play. Do not operate the system from the time
the system turns on until the playback starts.
To check the setting
EQ  repeatedly to select “BASS”
or “TREBLE,” and then press /
 to adjust the level.
To
Change
information on
the display1)
Change Display
mode (see below.)
Press
DISPLAY  repeatedly when the
system is on.
DISPLAY  repeatedly when the
system is off.2)
For example, you can view CD/MP3 disc information or the USB
device information (except for North American model), such as;
track or file number during normal play.
track or file name (“ ”) during normal play.
artist name (“ ”) during normal play.
album or folder name (“
”) during normal play.
total playing time and total number of tracks on the CD-DA
disc (only when normal play mode is selected and the player is
stopped).
total number of folders (albums) on the MP3 disc or the USB
device (only when normal play mode is selected and the player is
stopped).
volume label if it exists on the MP3 disc or the USB device (only
when normal play mode is selected and the player or USB device
is stopped).
You can also view DAB/DAB+ station information (CMT-MX550i
only) such as the service name, channel label, preset number,
frequency, DLS (Dynamic Label Segment), or ensemble label.
2)
The STANDBY indicator  on the unit lights up when the system is off.
Display mode
Demonstration
Power Saving
Mode2)
Clock3)
When the system is off1),
The demonstration is turned on.
The display is turned off to conserve
power. The timer and clock continue
to operate.
The clock is displayed.
The STANDBY indicator  on the unit lights up when the system is off.
You cannot set the clock in Power Saving Mode.
3)
The clock display automatically turns to Power Saving Mode after 8
seconds.
1)
2)
Notes on the display information
Characters that cannot be displayed appear as “_”.
The following are not displayed;
total playing time for an MP3 disc and a USB device (except for
North American model).
remaining playing time for an MP3 file.
The following are not displayed correctly;
elapsed playing time of an MP3 file encoded using VBR (variable
bit rate).
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;
remaining playing time for a track.
ID3 tag information for MP3 files when ID3 version 1 and
version 2 tags are used (ID3 version 2 tag information display has
priority when both ID3 version 1 and version 2 tags are used for a
single MP3 file).
Note on the DAB/DAB+ display information (CMT-MX550i
only)
The following is also displayed;
up to 8 characters of service name, up to 128 characters of DLS
(Dynamic Label Segment) and up to 16 characters of ensemble
label.
Using the timers
The system offers two timer functions. If you use both
timers, 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. If you select “AUTO,” the
system automatically turns off after the current disc or
USB device stops, or within 100 minutes.
Play Timer:
You can wake up to CD, FM reception, DAB/DAB+
reception (CMT-MX550i only), iPod/iPhone or USB
device (except for North American model) at a preset
time. 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 CD track or audio file, create
your own program.
The STANDBY indicator  remains lit after
unplugging the power cord.
The STANDBY indicator  may not turn off
immediately after unplugging the power cord. The
indicator will turn off after about 40 seconds. This is not
a malfunction.
.
To cancel the timer
Repeat the same procedure as above until “TIMER OFF?”
.
appears in step 3, and then press
Start over from step 1.
Notes for the iPod/iPhone user
Make sure the iPod/iPhone is not playing when using the Play
Timer.
The Play Timer may not be activated depending on the status of the
connected iPod/iPhone.
Tip
The Play Timer setting remains as long as the setting is not cancelled
manually.
Troubleshooting
1 Make sure the power cord and speaker cords are
correctly and firmly connected.
2 Find your problem in the checklist below, and take
the indicated corrective action.
If the issue persists, contact your nearest Sony dealer.
If the STANDBY indicator flashes
Immediately unplug the power cord, and check the
following items.
Are the + and  speaker cords short-circuited?
Is anything blocking the ventilation holes of the
system?
Is the iPod/iPhone connector  short-circuited?
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
The demonstration appears in the display after
plugging in the power cord even though the
system is not turned on.
Press DISPLAY  once while the system is off. The
demonstration disappears.
The system does not turn on.
Is the power cord plugged in?
The system has entered standby mode
unexpectedly.
This is not a malfunction. The system enters standby
mode automatically in about 30 minutes when there is
no operation or audio signal output. See “To turn off
the automatic standby function.”
The clock setting or the Play Timer operation
has been cancelled unexpectedly.
If about a minute elapses with no operation, the clock
setting or Play Timer setting is cancelled automatically.
Perform the operation again from the beginning.
There is no sound.
Are the + and  speaker cords short-circuited?
Are you using only the supplied speakers?
Is anything blocking the ventilation holes of the system?
The specified station may have temporarily stopped
broadcast.
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.
Connect the system to a different wall outlet.
Install a noise filter (available separately) to the power
cord.
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.
Erroneous display
CD/MP3 player
The sound skips, or the disc will not play.
The USB device is not recognized.
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.
3 Press /  repeatedly to select “PLAY SEL?,” and
.
“Reading” is displayed for an extended time, or
it takes a long time before playback starts.
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 alphabets only. Other
characters are not displayed correctly.
Starting playback takes more time than usual.
then press
1)
The system offers the following display modes.
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.
1 Press TIMER MENU .
2 Press /  repeatedly to select “TIMER SEL?,” and
To change the setting
Changing the display
The remote does not function.
Play does not start from the first track.
then press
5 Repeat steps 3 through 4 to program additional
tracks or files, up to a total of 25 tracks or files.
2 Select the timer set mode.
Return to Normal Play by pressing PLAY MODE 
repeatedly until both “PGM” and “SHUF” disappear.
The following discs can increase the time it takes 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.
iPod/iPhone
There is no sound.
Make sure the iPod/iPhone is connected securely.
Make sure the iPod/iPhone is playing music.
Adjust the volume.
The sound is distorted.
Make sure the iPod/iPhone is connected securely.
Turn down the volume.
Set the “EQ” setting of the iPod/iPhone to “Off ” or
“Flat.”
The iPod/iPhone does not function.
Make sure the iPod/iPhone is connected securely.
Make sure the iPod/iPhone is updated with the latest
software. If not, update the iPod/iPhone before using
with the system.
Because the operation of the system and the iPod/
iPhone are different, you may not operate the iPod/
iPhone using buttons on the remote or unit. In this
case, use the control buttons on the iPod/iPhone.
The iPod/iPhone cannot be charged.
Make sure the iPod/iPhone is connected securely.
You can use the system as a battery charger for iPod/
iPhone only when the system is on.
The ring volume of the iPhone does not
change.
Adjust the ring volume on the iPhone.
USB device (except for North American
model)
The connected iPod/iPhone or USB device is
not being charged, when both are connected at
the same time.
You cannot charge an iPod/iPhone and the USB device
at the same time.
Are you using a supported USB device?
If you connect an unsupported USB device, the
following problems may occur. Check the information
on the websites about compatible USB devices with
URLs listed under “Playing a file of the USB device.”
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.
“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 no sound.
The USB device is not connected correctly. Turn off the
system, then reconnect the USB device.
There is noise, skipping, or distorted sound.
Turn off the system, then reconnect the USB device.
The music data itself contains noise, or the sound is
distorted. Noise may have been entered when creating
music data due to the conditions of the computer.
Create the music data again.
The bit rate used when encoding the files was low. Send
files encoded with higher bit rates to the USB device.
Turn off the system and reconnect the USB device, then
turn on the system.
Check the information on the websites about
compatible USB devices with URLs listed under
“Playing a file of the USB device.”
The USB device does not work properly. Refer to the
USB device operation manual for how to deal with this
problem.
Play does not start.
Turn off the system and reconnect the USB device, then
turn on the system.
Check the information on the websites about
compatible USB devices with URLs listed under
“Playing a file of the USB device.”
Press   to start playback.
Play does not start from the first track.
Set the play mode to Normal Play mode.
Files cannot be played back.
The audio file does not have the extension “.mp3,”
“.wma” or “.m4a”.
The data is not stored in MP3/WMA/AAC format.
USB storage devices formatted with file systems other
than FAT16 or FAT32 are unsupported.*
If you use a partitioned USB storage device, only files
on the first partition can be played.
Files that are encrypted or protected by passwords, etc.
cannot be played back.
* This system supports FAT16 and FAT32, but some USB storage
devices may not support all of these FAT. For details, see the
operation manual of each USB storage device or contact the
manufacturer.
Tuner
Severe hum or noise, or stations cannot be
received. (“TUNED” or “STEREO” 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 and the
power cord to avoid picking up noise.
Turn off nearby electrical equipment.
DAB/DAB+ radio station is not received
properly (CMT-MX550i only).
Check all antenna connections, then perform the DAB
Automatic Scan procedure (see “Reception of DAB/
DAB+ radio station”).
The current DAB/DAB+ service may not be available.
Press +/  to select a different service.
If you have moved to another area, some services/
frequencies may have changed and you may not be able
to tune into your usual broadcast. Perform the DAB
Automatic Scan procedure to re-register the contents
of broadcasts. (Performing this procedure clears all
previously stored presets.)
To improve tuner reception
Turn off CD player power by using the system’s power
management function. By default, CD player power is
turned on.
Use buttons on the unit to turn off the CD player power.
1 Press FUNCTION  repeatedly to select the CD
function.
2 Press   to turn off the system.
3 After “STANDBY” stops flashing, press DISPLAY 
to display the clock, and then press   while
holding down
+ , until “CD POWER OFF”
appears.
With CD player power turned off, 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 unit to its factory
default settings.
1 Disconnect and reconnect the power cord, and then
turn on the system.
2 While holding down ENTER , hold down  
until “RESET” appears.
All user-configured settings, such as preset radio
stations, timer, and the clock, are deleted.
To turn off the automatic standby function
This system is equipped with an automatic standby
function. With this function, the system enters standby
mode automatically in about 30 minutes when there is no
operation or audio signal output.
By default, the automatic standby function is turned on.
Use buttons on the unit to turn off the automatic standby
function.
Hold down   while the system is on, until
“AUTO STBY OFF” appears.
To turn on the function, repeat the procedure until
“AUTO STBY ON” appears.
Notes
“AUTO STBY” appears in the display for 2 minutes before the
system enters standby mode.
The automatic standby function is invalid for the tuner function
(FM/DAB), even when you have enabled it.
The system may not enter standby mode automatically in the
following cases;
while an audio signal is being detected.
during playback of audio tracks or files.
while the preset Play Timer or Sleep Timer is in process.
Messages
CD Over : You have reached the end of the disc while
pressing   during playback or pause.
Data Error : You tried to play an unplayable file on the
USB device.
Error : The USB device could not be recognized or an
unknown device is connected.
LOCKED : The disc tray does not open. Contact your
nearest Sony dealer.
No Device : No USB device is connected or the
connected USB device has been stopped.
No Disc : There is no disc in the player, or you have
loaded a disc that cannot be played.
No Memory : The memory media which you have
selected as playback source is not inserted in the USB
device.
No Preset (DAB/DAB+ only) : There is no stored preset
station.
No Service (DAB/DAB+ only) : There is no supported
DAB/DAB+ broadcast in your country or region.
No Step : All of the programmed tracks have been
erased.
No Text (DAB/DAB+ only) : There is no text information
in the received service.
No Track : Playable file on the USB device is not loaded
in the system.
Not in Use : You tried to perform a specific operation
under conditions where that operation is prohibited.
Not Supported : An unsupported USB device is
connected.
Push STOP! : You pressed PLAY MODE  during
playback.
Step Full! : You tried to program more than 25 tracks or
files (steps).
TIME NG! : The Play Timer start and end times are set to
the same time.
Precautions
On safety
iPod/iPhone section
Completely disconnect the power cord (mains lead)
from the wall outlet (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.
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 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.
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.
Cleaning the cabinet
Clean this system with a soft cloth slightly moistened
with a mild detergent solution. Do not use any type of
abrasive pads, scouring powder, or solvents, such as
thinner, benzine, or alcohol.
Specifications
Main unit
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC DISTORTION:
(The United States model only)
With 6 ohm loads, both channels driven, from 120  10,000 Hz; rated 30 watts
per channel minimum RMS power, with no more than 10% total harmonic
distortion from 250 milliwatts to rated output.
Amplifier section
European model:
DIN power output (rated): 25 watts + 25 watts (6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference): 30 watts + 30 watts (6 ohms at
1 kHz, 10% THD)
Music power output (reference): 30 watts + 30 watts (6 ohms at 1 kHz, 10%
THD)
Other models:
DIN power output (rated): 25 watts + 25 watts (6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference): 30 watts + 30 watts (6 ohms at
1 kHz, 10% THD)
Input
AUDIO IN (stereo mini jack): Sensitivity 700 mV, impedance 47 kilohms
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
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/CD-RW recorded with an incompatible
recording device
CD-R/CD-RW which is finalized incorrectly
Discs containing files other than MPEG 1 Audio Layer3 (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 antistatic 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.
Outputs
SPEAKERS: Accepts impedance of 6 ohms
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 tuner section:
FM stereo, FM superheterodyne tuner
Tuning range:
North American model: 87.5 MHz  108.0 MHz (100 kHz step)
Other models: 87.5 MHz  108.0 MHz (50 kHz step)
Antenna: FM lead antenna
Antenna terminals: 75 ohms unbalanced
Intermediate frequency: 10.7 MHz
DAB/DAB+ tuner section (CMT-MX550i only):
FM stereo, DAB/FM superheterodyne tuner
Frequency range*
Band-III: 174.928 (5A) MHz  239.200 (13F) MHz
* For details, see “DAB/DAB+ frequency table” below.
Antenna: DAB/FM lead antenna
Antenna terminal: 75 ohms, F female
DAB/DAB+ frequency table (Band-III)
Frequency
Label
Frequency
Label
174.928 MHz
5A
209.936 MHz
10A
176.640 MHz
5B
211.648 MHz
10B
178.352 MHz
5C
213.360 MHz
10C
180.064 MHz
5D
215.072 MHz
10D
181.936 MHz
6A
216.928 MHz
11A
183.648 MHz
6B
218.640 MHz
11B
185.360 MHz
6C
220.352 MHz
11C
187.072 MHz
6D
222.064 MHz
11D
188.928 MHz
7A
223.936 MHz
12A
190.640 MHz
7B
225.648 MHz
12B
192.352 MHz
7C
227.360 MHz
12C
194.064 MHz
7D
229.072 MHz
12D
195.936 MHz
8A
230.784 MHz
13A
197.648 MHz
8B
232.496 MHz
13B
199.360 MHz
8C
234.208 MHz
13C
201.072 MHz
8D
235.776 MHz
13D
202.928 MHz
9A
237.488 MHz
13E
204.640 MHz
9B
239.200 MHz
13F
206.352 MHz
9C
208.064 MHz
9D
*Frequencies are displayed to two decimal places on this system.
Compatible iPod/iPhone models:
iPod touch 2nd generation
iPod touch 1st generation
iPod classic 120 GB, 160 GB (2009)
iPod classic 160 GB (2007)
iPod classic 80 GB
iPod nano 5th generation (video camera)
iPod nano 4th generation (video)
iPod nano 3rd generation (video)
iPod nano 2nd generation (aluminum)
iPod nano 1st generation
iPod 5th generation (video)
iPod 4th generation (color display)
iPod 4th generation
iPod mini
iPhone
iPhone 3G
iPhone 3GS
USB section (except for North American model)
Supported bit rate:
MP3 (MPEG 1 Audio Layer-3): 32 kbps  320 kbps, VBR
WMA: 48 kbps  192 kbps, VBR
AAC: 48 kbps  320 kbps
Sampling frequencies:
MP3 (MPEG 1 Audio Layer-3): 32/44.1/48 kHz
WMA: 44.1 kHz
AAC: 44.1 kHz
(USB) port: Type A, maximum current 500 mA
Speaker
Speaker system: 2 way speaker system, Bass reflex
Speaker units:
Woofer 100 mm, cone type
Tweeter 40 mm, cone type
Rated impedance: 6 ohms
Dimensions (W/H/D):
North American model: Approx. 140 mm × 240 mm × 200 mm
Other models: Approx. 150 mm × 240 mm × 220 mm
Mass: Approx. 2.0 kg net per speaker
General
Power requirements:
North American model: AC 120 V, 60 Hz
Other models: AC 220 V  240 V, 50/60 Hz
Power consumption: 33 watts
Dimensions (W/H/D) (excl. speakers):
Approx. 309 mm × 122 mm × 247 mm
Mass (excl. speakers): Approx. 2.9 kg
Supplied accessories: Remote Commander (1), R6 (Size AA) batteries (2), FM
lead antenna (1) (CMT-MX500i), DAB/FM lead antenna (2) (CMT-MX550i),
Speaker cords (2) (except for North American model), Speaker pads (8), Dock
Adapters for iPhone models (1 set)
Design and specifications are subject to change without notice.
Standby power consumption: 0.5 W
Halogenated flame retardants are not used in the certain printed
wiring boards.