Sony Stereo System 3 287 077 142 User Manual
3-287-077-14(2)  
Mini Hi-Fi  
Component  
System  
Operating Instructions  
MHC-GT555 / GT444  
MHC-GT222 / GT111  
LBT-ZT4  
©2008 Sony Corporation  
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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.  
6) Clean only with dry cloth.  
7) 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.  
WARNING  
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  
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.  
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:  
12) Use only with the cart, stand, tripod,  
bracket, or table specified by the  
– Reorient or relocate the receiving antenna.  
– Increase the separation between the  
equipment and receiver.  
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.  
– 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  
modification not expressly approved in this  
manual could void your authority to operate  
this equipment.  
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.  
Important Safety  
Instructions  
1) Read these instructions.  
2) Keep these instructions.  
3) Heed all warnings.  
4) Follow all instructions.  
5) Do not use this apparatus near water.  
Continued  
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Notice for the customer in the  
Disposalofwaste  
batteries  
(applicable in the  
European Union  
and other  
European  
countries with  
separate  
countries applying EU Directives  
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  
collection  
systems)  
documents.  
This symbol on the battery or on the  
packaging indicates that the battery provided  
with this product shall not be treated as  
household waste.  
Disposal of Old  
Electrical &  
Electronic  
Equipment  
(Applicable in the  
European Union  
and other  
European  
countries with  
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.  
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.  
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.  
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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.  
About this manual  
The instructions in this manual are for  
models MHC-GT555, MHC-GT444,  
MHC-GT222, MHC-GT111 and  
LBT-ZT4. In this manual, the  
MHC-GT555 is used for illustration  
purposes unless stated otherwise.  
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 MHC-GT555 consists of:  
– Unit  
HCD-GT555  
– Speaker System  
• Front speakers  
• Subwoofer  
SS-GT555M  
SS-WG555M  
The MHC-GT444 consists of:  
– Unit  
HCD-GT444  
– Speaker System  
European model except United  
Kingdom and Russian only  
• Front speakers  
• Subwoofer  
SS-GT444M  
SS-WG444M  
Other models  
• Front speakers  
• Subwoofer  
•
“WALKMAN” and “WALKMAN” logo  
are registered trademarks of Sony  
Corporation.  
SS-GT444  
SS-WG444  
•
•
MICROVAULT is a trademark of Sony  
Corporation.  
MPEG Layer-3 audio coding technology  
and patents licensed from Fraunhofer IIS  
and Thomson.  
Windows Media is a registered trademark  
of Microsoft Corporation in the United  
States and/or other countries.  
The MHC-GT222 consists of:  
– Unit  
HCD-GT222  
– Speaker System  
European model only  
• Front speakers  
Other models  
SS-GT444M  
SS-GT444  
•
• Front speakers  
The MHC-GT111 consists of:  
– Unit  
HCD-GT111  
– Speaker System  
European model only  
• Front speakers  
Asian model only  
• Front speakers  
Other models  
SS-GT111M  
SS-GT111S  
SS-GT111  
• Front speakers  
The LBT-ZT4 consists of:  
– Unit  
HCD-ZT4  
– Speaker System  
• Front speakers  
• Subwoofer  
SS-ZT4  
SS-WG4  
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Table of Contents  
About this manual ....................... 5  
Guide to parts and controls.......... 7  
Other Operations  
Creating your own program.......27  
— Program Play  
Presetting radio stations.............28  
Using the Radio Data System  
(RDS).....................................28  
(European model only)  
Getting Started  
Hooking up the system  
securely.................................. 13  
Setting the clock ........................ 15  
Recording onto a tape................29  
— CD-TAPE Synchro  
Recording/Manual Recording/  
Sound Mixing  
Creating your own sound  
effect ......................................30  
Enjoying karaoke.......................30  
Using the Timers .......................31  
Basic Operations  
Playing an AUDIO CD/MP3  
disc......................................... 16  
Listening to the radio................. 17  
Transferring onto an USB  
device..................................... 18  
Listening to music of an USB  
device..................................... 21  
Playing a tape ............................ 23  
Using optional audio  
components............................ 24  
Using the DIGITAL MEDIA  
PORT adapter ........................ 24  
(LBT-ZT4 only)  
Adjusting the sound................... 25  
Changing the display................. 25  
Others  
Troubleshooting.........................33  
Messages....................................37  
Precautions.................................38  
Specifications.............................40  
Compatible USB devices with  
this system..............................44  
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Guide to parts and controls  
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 view  
wg  
1
2
3
5
7
wf  
7
4
6
LBT-ZT4 only  
AUDIO  
CD  
AUDIO  
TUNER/  
BAND  
DMPORT  
8
8
TAPE  
USB  
USB  
wd  
ws  
wa  
*9  
qa  
q;  
w;  
ql  
qk  
qs  
qd  
qf qg  
qh qj  
LBT-ZT4 only  
AUDIO INPUT  
* MHC-GT555, MHC-GT444 and LBT-ZT4 only  
Top view  
wh  
wj  
Continued  
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1
./> (go back/go forward)  
(pages 16, 22, 27)  
"/1 (on/standby) (pages 14, 33, 37)  
Press to select a track or file.  
Press to turn on the system.  
The STANDBY indicator lights up when  
the system is turned off.  
H
CD (pages 14, 16, 29)  
Press to select the CD function.  
B
DISPLAY (pages 26, 28, 33)  
TUNER/BAND (page 17)  
Press to select the TUNER function.  
Press to select the FM or AM band.  
Press to change the information on the  
display.  
C
METER MODE (page 26)  
Press to select the preset meter display.  
TAPE (page 23)  
Press to select the TAPE function.  
D
AUDIO (page 24)  
Press to select the AUDIO function.  
OPTIONS (pages 19, 25)  
Press to change the display, USB and  
MP3 BOOSTER+ settings.  
USB  
(pages 20, 21)  
Press to select the USB function.  
E
ERASE (page 22)  
LBT-ZT4 only  
DMPORT (page 24)  
Press to select the DMPORT function.  
Press to erase audio files and folders from  
the connected optional USB device.  
I
F
MHC-GT555, MHC-GT444 and  
LBT-ZT4 only  
SUBWOOFER (page 25)  
Remote sensor (page 33)  
G
+/– (select folder) (pages 16, 22,  
Press to turn on and off the subwoofer.  
The SUBWOOFER indicator lights up  
when the subwoofer is turned on.  
27)  
Press to select a folder.  
J
m/M (rewind/fast forward)  
(pages 16, 22)  
Press to find a point in a track.  
REC TIMER (page 32)  
Press to set the Recording Timer.  
K
RETURN (pages 16, 22)  
NX (play/pause) (pages 16, 21, 35)  
Press to start or pause playback.  
Press to return to the parent folder.  
Press to exit search mode.  
x (stop) (pages 22, 37)  
Press to stop playback.  
L
ENTER (pages 16, 20, 22, 25, 32, 37)  
Press to enter the settings.  
TUNING +/– (page 17)  
Press to tune in the station you want.  
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M
U
DISC SKIP/EX-CHANGE (pages 14,  
DISC 1 – 3 (page 16)  
16, 27, 29)  
Press to select a disc. Press to exchange a  
disc while playing.  
Press to select a disc. Press to switch to the  
CD function from other function.  
V
N
MASTER VOLUME (pages 16, 17,  
21, 23, 24)  
Turn to adjust the volume.  
PHONES jack  
Connect the headphones.  
O
W
LBT-ZT4 only  
OPERATION DIAL (pages 16, 19, 22,  
AUDIO INPUT jack (page 24)  
25, 30, 32)  
Turn to select a setting in the OPTIONS  
menu.  
Turn to select a track, file or folder.  
Other models  
AUDIO INPUT L/R jacks (page 24)  
Connect to an audio component  
(Portable audio player, etc.).  
X
PRESET EQ (pages 25, 30),  
GROOVE (pages 25, 30),  
SURROUND (page 25)  
Press to select a sound effect.  
P
(USB) indicator  
Lights up in red when transferring to the  
connected optional USB device or when  
erasing audio files or folders.  
EQ BAND (page 30)  
Press to select the frequency band.  
(USB) port (pages 18, 19, 21, 35)  
Connect an optional USB device.  
Y
Display (page 25)  
Q
Z
MIC jack (page 30)  
Connect an optional microphone.  
Tape deck (pages 23, 29)  
wj  
MIC LEVEL (page 30)  
z (record) (page 29)  
Press to record onto a tape.  
Turn to adjust the microphone volume.  
R
B (play) (pages 23, 29)  
Press to start tape playback.  
* The B button has a tactile dot. Use the tactile  
Disc tray (pages 16, 37)  
S
Z OPEN/CLOSE (page 16)  
Press to insert or eject a disc.  
dot as a reference when operating the system.  
m/M (rewind/fast forward)  
(page 23)  
Press to rewind/fast forward a tape.  
T
USB  
REC TO  
(pages 18, 19)  
Press to transfer onto the connected  
optional USB device.  
Continued  
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x Z (stop/eject) (pages 23, 29)  
Press to stop tape playback.  
Press to insert or eject a tape.  
D
TIMER MENU (pages 15, 31, 32)  
Press to set the clock and the timers.  
X (pause) (pages 23, 29)  
E
Press to pause tape playback.  
V/v/b/B (pages 15, 31)  
Press to select the settings.  
Remote RM-AMU008  
(LBT-ZT4 only)  
(pages 15, 27, 31)  
Press to enter the selection.  
F
qg  
TOOL MENU  
1
qf  
qs  
qa  
Press to select the menu of the component  
connected to the DIGITAL MEDIA  
PORT adapter.  
qd  
2
3
4
G
5
6
./> (go back/go forward)  
(pages 16, 22, 27)  
Press to select a track or file.  
q;  
7
8
+/– (select folder) (pages 16, 22,  
27)  
Press to select a folder.  
9
+/– (tuning) (page 17)  
Press to tune in the station you want.  
m/M (rewind/fast forward)  
(pages 16, 22)  
Press to find a point in a track or file.  
1
N (play) (pages 16, 21, 35)  
Press to start playback.  
"/1 (on/standby) (pages 15, 32)  
Press to turn on the system.  
DISC SKIP (pages 16, 27, 29)  
Press to select a disc.  
B
CLEAR (page 27)  
Press to delete the last step from the  
program list.  
X (pause) (pages 16, 22)  
Press to pause playback.  
C
x (stop) (pages 16, 17, 19, 22)  
Press to stop playback.  
EQ (page 25)  
Press to select a sound effect.  
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H
Remote RM-AMU006  
(Other models)  
FUNCTION +/– (pages 16, 17, 21, 23,  
24)  
Press to select a function.  
qg  
qf  
1
2
I
VOLUME +/–* (pages 16, 17, 21, 23,  
24)  
Press to adjust the volume.  
* The VOLUME + button has a tactile dot. Use  
the tactile dot as a reference when operating  
the system.  
qd  
qs  
3
4
5
J
O RETURN (pages 16, 22)  
qa  
q;  
8
6
7
8
Press to return to the parent folder.  
Press to exit search mode.  
K
TUNER MEMORY (page 28)  
Press to preset the radio station.  
9
L
PLAY MODE/TUNING MODE  
(pages 17, 22, 27, 28, 33)  
Press to select the play mode of an  
AUDIO CD, MP3 disc or an optional  
USB device.  
1
"/1 (on/standby) (pages 15, 32)  
Press to turn on the system.  
Press to select the tuning mode.  
B
M
CLOCK/TIMER SELECT (pages 32,  
37)  
CLOCK/TIMER SET (pages 15, 31)  
Press to set the clock and the timers.  
REPEAT/FM MODE (pages 16, 17,  
22)  
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).  
C
REPEAT/FM MODE (pages 16, 17,  
22)  
N
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).  
SLEEP (page 31)  
Press to set the Sleep Timer.  
O
DISPLAY (pages 15, 28, 33)  
Press to change the information on the  
display.  
Continued  
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D
H
USB (page 21)  
+/– (select folder) (pages 16, 22,  
Press to select the USB function.  
27)  
Press to select a folder.  
CD (pages 16, 29)  
Press to select the CD function.  
I
VOLUME +/–* (pages 16, 17, 21, 23)  
Press to adjust the volume.  
TUNER/BAND (page 17)  
* The VOLUME + button has a tactile dot. Use  
the tactile dot as a reference when operating  
the system.  
Press to select the TUNER function.  
Press to select the FM or AM band.  
J
FUNCTION (pages 23, 24)  
Press to select a function.  
EQ (page 25)  
Press to select a sound effect.  
E
./> (go back/go forward)  
(pages 15, 16, 22, 27, 31)  
Press to select a track or file.  
K
CLEAR (page 27)  
Press to delete the last step from the  
program list.  
m/M (rewind/fast forward)  
(pages 16, 22)  
Press to find a point in a track or file.  
L
TUNER MEMORY (page 28)  
Press to preset the radio station.  
+/– (tuning) (page 17)  
M
Press to tune in the station you want.  
PLAY MODE/TUNING MODE  
(pages 17, 22, 27, 28, 33)  
Press to select the play mode of an  
AUDIO CD, MP3 disc or an optional  
USB device.  
N (play) (pages 16, 21, 35)  
Press to start playback.  
X (pause) (pages 16, 22)  
Press to pause playback.  
Press to select the tuning mode.  
N
x (stop) (pages 16, 17, 19, 22)  
DISPLAY (pages 15, 28, 33)  
Press to stop playback.  
Press to change the information on the  
display.  
F
O
ENTER (pages 15, 27, 31)  
Press to enter the settings.  
SLEEP (page 31)  
Press to set the Sleep Timer.  
G
DISC SKIP (pages 16, 27, 29)  
Press to select a disc.  
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Getting Started  
Hooking up the system securely  
1
2
ANTENNA  
a)A  
DMPORT  
b)B  
F
3
SUBWOOFER  
c)C  
VOLTAGE  
SELECTOR  
4
Ed)  
FRONT SPEAKER  
D
5
6
a)  
1 To FM lead antenna  
The FM 75 Ω COAXIAL jack varies according to  
models.  
2 To AM loop antenna  
3 To DIGITAL MEDIA PORT adapter  
4 To subwoofer  
b)  
c)  
d)  
LBT-ZT4 only.  
MHC-GT555, MHC-GT444 and LBT-ZT4 only.  
The VOLTAGE SELECTOR varies according to  
models.  
5 To front speaker (left)  
6 To front speaker (right)  
Continued  
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A Antennas  
Find a location and an orientation that  
provide good reception, and then set up  
the antennas.  
C Subwoofer (MHC-GT555,  
MHC-GT444 and LBT-ZT4 only)  
Be sure to insert the connector straight  
into the terminals.  
UBWOOFER  
S
Purple  
D Front speakers  
Be sure to insert the connector straight  
into the terminals.  
AM loop antenna  
Extend the FM lead  
antenna horizontally  
Keep the antennas away from the speaker  
cords, the power cord and the USB cable  
to avoid picking up noise.  
PEAKER  
S
FRONT  
White  
L
R
Ω
6
E
S
U
N
A
ED  
P
IM  
B DMPORT (DIGITAL MEDIA PORT)  
(LBT-ZT4 only)  
Connect the DIGITAL MEDIA PORT  
adapter. You need to connect the  
DIGITAL MEDIA PORT adapter to an  
optional audio device (portable audio  
player, etc.).  
E VOLTAGE SELECTOR  
For models with a voltage selector, set  
VOLTAGE SELECTOR to the local  
power line voltage.  
Notes  
F Power  
• The DIGITAL MEDIA PORT adapters are  
available for purchase depending on the area.  
• Do not connect an adapter other than the  
DIGITAL MEDIA PORT adapter.  
• When connecting the DIGITAL MEDIA  
PORT adapter, be sure the connector is  
inserted with the arrow mark facing towards  
the arrow mark on the DMPORT jack.  
• Do not connect or disconnect the DIGITAL  
MEDIA PORT adapter to/from the DMPORT  
jack while the system is turned on.  
Connect the power cord to a wall socket.  
The demonstration appears in the display.  
If the plug does not fit the wall socket,  
detach the supplied plug adaptor (only for  
models equipped with an adaptor).  
When carrying this system  
Use the buttons on the unit for this  
operation.  
• When using a DIGITAL MEDIA PORT  
adapter that has video output function,  
connect the video output of the adapter  
directly to the TV.  
1 Remove all discs to protect the CD  
mechanism.  
2 Press CD to select the CD function.  
3 Hold down DISC SKIP/  
EX-CHANGE, and press "/1 until  
“STANDBY” appears.  
4 After “MECHA LOCK” appears,  
unplug the power cord.  
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Speaker pads  
Attach the supplied speaker pads to the  
bottom of the front speakers and  
subwoofer to prevent slipping.  
Setting the clock  
You cannot set the clock in Power Saving  
Mode.  
Front speakers:  
4 pads for each speaker  
Use the buttons on the remote for this  
operation.  
Subwoofer:  
4 pads (MHC-GT555, MHC-GT444 and  
LBT-ZT4 only)  
1
2
Press "/1 to turn on the system.  
Press CLOCK/TIMER SET  
(RM-AMU006) or TIMER MENU  
(RM-AMU008).  
If “PLAY SET” appears on the  
display, press ./>  
(RM-AMU006) or V/v  
(RM-AMU008) repeatedly to select  
“CLOCK SET” and then press  
ENTER (RM-AMU006) or  
(RM-AMU008).  
To use the remote  
Slide and remove the battery  
compartment lid, then, insert the two  
supplied R6 (size AA) batteries, E side  
first, matching the polarities shown  
below.  
3
4
Press ./> (RM-AMU006) or  
V/v(RM-AMU008) repeatedly to  
set the hour, and then press  
ENTER (RM-AMU006) or  
(RM-AMU008).  
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 turned off  
Press DISPLAY repeatedly until the clock  
is displayed. 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.  
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Other operations  
To  
Press  
Basic Operations  
Pause playback  
X (or NX on the unit).  
Toresume play, press the  
button again.  
Playing an AUDIO CD/  
MP3 disc  
Stop playback  
x.  
Select a folder on  
an MP3 disc  
+/–.  
1
Select the CD function.  
Press CD (RM-AMU006) or press  
FUNCTION +/– (RM-AMU008)  
Select a track or ./>.  
file  
2 repeatedly (or press CD on the unit).  
Place a disc.  
Find a point in a Hold down m/M on  
track or file  
the remote during  
playback, and release the  
button at the point you  
want.  
Press Z OPEN/CLOSE on the unit,  
and place a disc with the label side up  
on the disc tray.  
Select Repeat  
Play  
REPEAT repeatedly  
until “REP” or “REP1”  
lights up in the display.  
Select a disc  
DISC SKIP (or  
DISC 1 – 3 on the unit) in  
stop mode.  
Search for an MP3 Use the controls on the  
file by its folder unit for this operation.  
To place additional discs, slide the disc  
tray with your finger as shown above.  
To close the disc tray, press Z OPEN/  
CLOSE on the unit again.  
Do not forcibly push the disc tray to  
close it as this may damage the unit.  
name and file  
name and start  
Turn OPERATION  
DIAL to select the folder  
playback the MP3 you want, then press  
file (TRACK  
SEARCH)*  
ENTER.  
Turn OPERATION  
DIAL to select the file  
you want, then press  
ENTER.  
3
4
Start playback.  
Press N (or NX on the unit).  
Adjust the volume.  
To return to the parent  
folder, press RETURN.  
Press VOLUME +/– (or turn  
MASTER VOLUME on the unit).  
Switch to CD  
function from  
other function  
DISC 1 – 3 on the unit  
(Automatically Source  
Selection).  
Exchange other EX-CHANGE on the  
discs while  
playing  
unit.  
* When using an AUDIO CD, you can use the  
same operation to select a track.  
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To change the play mode  
Press PLAY MODE repeatedly in stop  
mode. You can select normal play (“ALL  
DISCS” for all discs or “1 DISC” for a  
Listening to the radio  
1
Select “FM” or “AM”.  
disc or “  
*” for all MP3 files in the  
Press TUNER/BAND (RM-AMU006)  
or press FUNCTION +/–  
folder on the disc), shuffle play (“ALL  
DISCS SHUF” or “1 DISC SHUF” or  
(RM-AMU008) (or press TUNER/  
BAND on the unit) repeatedly.  
“
SHUF*”), or program play  
(“PGM”).  
* When playing an AUDIO CD,  
(SHUF)  
2
3
Select the tuning mode.  
Press TUNING MODE repeatedly  
until “AUTO” lights up in the display.  
Play performs the same operation as 1 DISC  
(SHUF) Play and performs the same  
operation as 1 DISC Play.  
Tune in the station you want.  
Press +/– (or TUNING +/– on the  
unit). Scanning stops automatically  
when a station is tuned in, and then  
“TUNED” and “ST” (for stereo  
programs only) light up in the display.  
Notes on Repeat Play  
• “REP” indicates 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.  
• You cannot select “REP” and “ALL DISCS  
SHUF” at the same time.  
GROOVE  
REC  
1
2
3
ST  
Notes on playing MP3 discs  
• Do not save other types of files or unnecessary  
folders on an MP3 disc.  
AUTO TUNED  
MHz  
• Folders that have no MP3 files are skipped.  
• The system can only play MP3 files that have  
a file extension of “.mp3”.  
4
Adjust the volume.  
Press VOLUME +/– (or turn  
• 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.  
MASTER VOLUME on the unit).  
To stop automatic scanning  
Press x.  
• The system can recognize up to  
– 256 folders (including root folder).  
– 511 MP3 files.  
To tune in a station with a weak  
signal  
– 512 MP3 files and folders on a single disc.  
– 8 folder levels (tree structure of files).  
• 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.  
If the scanning does not stop, press  
TUNING MODE repeatedly until  
“AUTO” and “PRESET” light off in the  
display, and then press +/– (or TUNING  
+/– on the unit) repeatedly to tune in the  
station you want.  
Notes on playing multisession discs  
When you play back Multi Session discs with  
different formats for each session, the format of  
the first session is recognized as the disc type.  
Tracks or files in the second and subsequent  
sessions are played back if they are the same  
formats as the first session.  
To reduce static noise on a weak  
FM stereo station  
Press FM MODE repeatedly until  
“MONO” lights up in the display to turn  
off stereo reception.  
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Refer to the operation manual supplied  
with the USB device to be connected  
for details on the operation method.  
Transferring onto an  
USB device  
2
3
Select the CD function, then load  
the disc you want to transfer.  
You can connect an optional USB device  
to the  
(USB) port on the unit and  
Press PLAY MODE repeatedly in  
stop mode to select the play  
mode.  
transfer music from a sound source  
(including connected audio components)  
to the USB device.  
The play mode automatically changes  
to normal play mode, if you start  
transferring in shuffle play mode,  
repeat play mode or in program play  
mode (when no tracks or MP3 files are  
programmed).  
The audio format of files transferred by  
this system is MP3.  
The approximate size of the transferring is  
about 1 MB per minute of transferring  
time from an AUDIO CD, tape, tuner,  
optional audio component or component  
connected to the DIGITAL MEDIA  
PORT adapter. When transferring from an  
MP3 disc, the file size is the same as the  
original file.  
For details about the play mode, see  
“To change the play mode” (page 17).  
USB  
on the unit.  
4
Press REC TO  
“USB”, “SYNC” and “REC” light up  
in the display. Then, transferring starts  
when “DON’T REMOVE” appears in  
the display. When the transferring is  
completed, the disc and the USB  
device stop automatically.  
See “Compatible USB devices with this  
system” (page 44) for a list of USB  
devices that can be connected to this  
system.  
CD-USB Synchronized Transfer  
Transferring a single track or  
MP3 file during playback  
(REC1 Transferring)  
You can easily transfer an entire disc onto  
an USB device.  
1
Connect a transferable USB  
You can easily transfer the track or MP3  
file that is currently being played back  
onto an USB device.  
device to the  
(USB) port  
as shown below.  
1
Connect a transferable USB  
device to the  
the unit.  
(USB) port on  
2
3
Select the CD function, then load  
the disc you want to transfer.  
USB device  
Select the track or MP3 file you  
want to transfer, then start play.  
When the USB cable connection is  
necessary, connect the USB cable  
supplied with the USB device to be  
connected.  
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USB  
4
Press REC TO  
on the unit  
To create a new MP3 file  
while the selected track or MP3  
file is being played back.  
USB  
Press REC TO  
on the unit.  
“NEW TRACK” appears in the display.  
USB  
If you press REC TO  
again after a  
“USB” and “REC” light up in the  
display. Then, transferring starts from  
the beginning of the track or file when  
“DON’T REMOVE” appears in the  
display. When the transferring is  
completed, the disc continues to play.  
few seconds, “NOT IN USE” appears in  
the display and a new MP3 file cannot be  
created.  
To transfer sound from a  
microphone  
Transferring from a sound  
source other than disc  
(Analog Transferring)  
1 Press FUNCTION (RM-AMU006)  
or FUNCTION +/– (RM-AMU008)  
repeatedly (or press TAPE on the  
unit) to select the TAPE function,  
and do not start playing any tape.  
You can easily transfer from a tape, tuner,  
optional audio component or component  
connected to the DIGITAL MEDIA  
PORT adapter onto an USB device.  
USB  
2 Press REC TO  
on the unit.  
3 Start singing or speaking into the  
microphone.  
1
Connect a transferable USB  
device to the  
the unit.  
(USB) port on  
To select the playback source  
or transferring destination on  
a Sony Ericsson mobile phone  
2
Select the source you want to  
transfer.  
For tape, insert a tape. For tuner, tune  
in the station you want to transfer.  
When listening to music from a Sony  
Ericsson mobile phone or when  
transferring music from this system to the  
mobile phone, you can select the playback  
source or transferring destination as  
follows:  
– internal memory of the mobile phone.  
– external memory (such as Memory  
Stick, etc.).  
3
4
Start play back the source.  
USB  
Press REC TO  
on the unit.  
“USB” and “REC” light up in the  
display. Then, transferring starts when  
“DON’T REMOVE” appears in the  
display.  
Tips  
1
2
3
Connect the mobile phone to the  
(USB) port on the unit.  
• A new MP3 file is created automatically after  
approximately 1 hour of transferring.  
• Transferring stops automatically when you  
change the function or tuner band.  
Press OPTIONS on the unit in  
stop mode.  
Turn OPERATION DIAL on the  
unit to select “USB SELECT”.  
To stop transferring  
Press x.  
Continued  
l
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REC1 Transferring  
4
5
Press ENTER on the unit.  
The drive name of the mobile phone  
appears in the display but varies  
depending on the specification of the  
mobile phone.  
Transfer-  
Folder name File name  
ring source  
MP3  
Same as the  
transferring  
source  
5)  
“REC1”  
2)  
Turn OPERATION DIAL on the  
unit to select the drive you want.  
4)  
AUDIO CD  
“TRACK001”  
Analog Transferring  
6
7
Press ENTER on the unit.  
Transfer-  
Folder name File name  
Start playback of the audio files  
in the selected drive of the  
mobile phone or start  
transferring.  
ring source  
3)  
4)  
FM  
“TUFM001” “TRACK001”  
3)  
AM  
“TUAM001”  
3)  
TAPE  
AUDIO  
DMPORT  
“TAPE001”  
3)  
“EXAU001”  
To remove the USB device  
Use the buttons on the unit for this  
operation.  
3)  
“EXDP001”  
1)  
In Program Play mode, the folder name is  
“PGM_xxx”, and the file name depends on  
the transferring source (AUDIO CD or MP3  
disc).  
Up to 32 characters of the name are assigned.  
Folder numbers are assigned serially  
thereafter.  
File numbers are assigned serially thereafter.  
A new file is transferred in the “REC1” folder  
each time REC1 Transferring is performed.  
USB  
1 Press  
to select the USB  
function.  
2 Hold down x in stop mode until  
2)  
3)  
“NO DEVICE” appears.  
3 Remove the USB device.  
4)  
5)  
Folder and file generation rules  
When transferring 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 transferring  
method and source.  
1)  
CD-USB Synchronized Transfer  
Transfer-  
Folder name File name  
ring source  
MP3  
Same as the transferring  
source  
2)  
3)  
4)  
AUDIO CD “CDDA001” “TRACK001”  
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Notes  
• Do not connect the system and the USB  
device through an USB hub.  
Listening to music of  
an USB device  
You can listen to music stored in the USB  
device.  
• When transferring from an AUDIO CD, the  
tracks are transferred as 128 kbps MP3 files.  
When transferring from an MP3 disc, MP3  
files are transferred with the same bit rate as  
the original MP3 files.  
• When transferring from a source other than  
disc, the files are transferred as 128 kbps MP3  
files.  
• While transferring from an MP3 disc, no  
sound is output.  
• CD-TEXT information is not transferred in  
the created MP3 files.  
• If you cancel the transferring partway, an  
MP3 file is created up to the point when the  
transferring was stopped.  
The audio formats that can be played back  
by this system are MP3, AAC and WMA  
only.*  
See “Compatible USB devices with this  
system” (page 44) 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. Files downloaded from an online  
music store may not be played on this system.  
• Transferring stops automatically if:  
– the USB device runs out of space during  
transferring.  
– the number of audio files on the USB device  
reaches the limit for the number that the  
system can recognize.  
– the function or tuner band is changed.  
• Up to 999 audio files or 997 folders can be  
transferred on a single USB device.  
The maximum number of audio files and  
folders may vary depending on the audio file  
and folder structure.  
1
2
Select the USB function.  
Press USB (RM-AMU006) or press  
FUNCTION +/– (RM-AMU008)  
USB  
repeatedly (or press  
Connect an optional USB device  
to the (USB) port on the unit.  
on the unit).  
• If a folder or file that you are trying to transfer  
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.  
• Do not remove the USB device during  
transferring or erase operations. Doing so may  
corrupt the data on the USB device or damage  
the USB device itself.  
When the USB device is connected,  
the display changes as follows:  
“USB READING” t Volume label*  
* “STORAGE DRIVE” appears when there  
is no volume label assigned to the USB  
device. “WALKMAN” appears if the  
USB device is the supported Sony digital  
music player.  
• You cannot eject the disc, select another disc,  
track or file, pause playback or find a point in  
the track or file during CD-USB  
Note  
It may take some time before “USB  
READING” appears depending on the type  
Synchronized Transfer or REC1 Transferring.  
3 of USB device connected.  
Start playback.  
Press N (or NX on the unit).  
The files are played in alphabetical  
order.  
4
Adjust the volume.  
Press VOLUME +/– (or turn  
MASTER VOLUME on the unit).  
Continued  
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To remove the USB device  
To  
Press  
+/–.  
Use the buttons on the unit for this  
operation.  
Select a folder  
Select a file  
./>.  
USB  
1 Press  
to select the USB  
Search for an  
audio file by its  
Use the controls on the  
unit for this operation.  
function.  
2 Hold down x in stop mode until  
folder name and Turn OPERATION  
file name and start DIAL toselect thefolder  
playback the audio you want, then press  
“NO DEVICE” appears.  
3 Remove the USB device.  
file (TRACK  
SEARCH)  
ENTER.  
Turn OPERATION  
DIAL to select the file  
you want, then press  
ENTER.  
To erase audio files or folders from  
the USB device  
You can erase audio files or folders from  
the USB device.  
To return to the parent  
folder, press RETURN.  
1 Connect a transferable USB device  
Find a point in a Hold down m/M  
to the  
(USB) port on the unit.  
file  
on the remote during  
playback, and release  
the button at the point  
you want.  
2 Select the USB function.  
3 Press ./> or  
+/–  
repeatedly to select the audio file or  
folder you want to erase.  
Select Repeat  
Play  
REPEAT repeatedly  
until “REP” or “REP1”  
lights up in the display.  
4 Press ERASE on the unit.  
“TRACK ERASE” or “FOLDER  
ERASE”, and “PUSH ENTER” appear  
alternately in the display.  
1)  
When playing an VBR (variable bit rate)  
audio file, the system may resume playback  
from a different point.  
To cancel the erase operation, press x.  
To change the play mode  
5 Press ENTER.  
The selected audio file or folder is  
erased.  
Press PLAY MODE repeatedly while the  
USB device is stopped.  
You can select  
– Normal play (all files in the folder on  
Other operations  
the USB device) (“  
” lights up).  
– Normal play (all files on the USB  
To  
Press  
device) (“  
light off).  
”, “SHUF” and “PGM”  
Pause playback  
X(or NX on the unit).  
To resume play, press  
the button again.  
– Shuffle play (“SHUF” or “  
lights up).  
SHUF”  
Stop playback  
x. To resume play,  
press N(or press NX  
on the unit). To cancel  
– Program play (“PGM” lights up).  
1)  
Notes on the USB device  
resume play, press the  
button twice and check  
that “RESUME”  
disappears from the  
display.  
• 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.  
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• 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.  
Playing a tape  
Use the controls on the tape deck for this  
operation.  
• 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.  
• If the system is turned off during Resume Play  
mode, when the system is turned on again  
playback starts from the beginning of the  
audio file.  
• This system does not necessarily support all  
the functions provided in a connected USB  
device.  
• The playback order for the system may differ  
from the playback order of the connected  
digital music player.  
• Do not save other types of files or unnecessary  
folders on an USB device.  
• Folders that have no audio files are skipped.  
• The maximum number of audio files and  
folders on an USB device that can be  
recognized by this system is 999 (including  
“ROOT” and “MUSIC” folder). The  
maximum number of audio files and folders  
may vary depending on the file and folder  
structure.  
1
2
Select the TAPE function.  
Press FUNCTION (RM-AMU006) or  
FUNCTION +/– (RM-AMU008)  
repeatedly (or press TAPE on the unit).  
Insert a tape.  
Press x Z, and insert a TYPE I  
(normal) tape into the tape holder with  
the side you want to play facing up.  
Make sure there is no slack in the tape  
to avoid damaging the tape or the tape  
deck. Press the tape deck lid on the unit  
to close the tape holder.  
• The system can play the following format of  
audio files:  
– MP3 with file extension “.mp3”.  
– AAC with file extension “.m4a”.  
– Windows Media Audio (WMA) with file  
extension “.wma”.  
If the audio files have the above file extension  
but are not the respective formats, the system  
may produce noise or may malfunction.  
• Compatibility with all MP3, AAC or WMA  
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.  
3
Start playback.  
4 Press B.  
Adjust the volume.  
Press VOLUME +/– (or turn  
MASTER VOLUME on the unit).  
Other operations  
To  
Press  
• You cannot erase audio files and folders in  
shuffle play mode or program play mode.  
• If the folder to be erased does not contain  
MP3/AAC/WMA files or contains sub  
folders, these are not erased.  
Pause playback X. To resume play, press  
the button again.  
Stop playback  
x Z.  
Rewind or fast m/M.  
forward  
• The Program Play setting is erased when the  
erase operation is performed.  
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Using optional audio  
components  
Using the DIGITAL  
MEDIA PORT adapter  
(LBT-ZT4 only)  
1
Connect an optional audio  
component to the unit.  
1
2
Select the DMPORT function.  
LBT-ZT4 only:  
Connect to the AUDIO INPUT jack on  
the unit using a stereo mini-plug cord  
(not supplied).  
Press FUNCTION +/– repeatedly  
(or press DMPORT on the unit).  
Start playing the component  
connected to the DIGITAL  
MEDIA PORT adapter.  
Other models:  
Connect to the AUDIO INPUT L/R  
jacks on the unit using an audio cord  
(not supplied).  
The sound from the connected  
component is played on the system.  
For operation details, refer to the  
operating instructions of the DIGITAL  
MEDIA PORT adapter.  
2
3
Turn down the volume.  
Press VOLUME – (or turn MASTER  
VOLUME on the unit counter  
clockwise).  
Notes  
• Depending on the type of DIGITAL MEDIA  
PORT adapter, you may be able to operate the  
connected component using the buttons on the  
remote or the unit.  
• You can use the system to charge the battery  
of the audio device connected to the  
DIGITAL MEDIA PORT adapter while the  
system is turned on.  
Select the AUDIO function.  
Press FUNCTION (RM-AMU006) or  
FUNCTION +/– (RM-AMU008)  
repeatedly (or press AUDIO on the  
unit).  
4
5
Start playing the connected  
component.  
Adjust the volume.  
Press VOLUME +/– (or turn  
MASTER VOLUME on the unit).  
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Adjusting the sound  
Use the controls on the unit for this  
operation.  
Changing the display  
Use the controls on the unit for this  
operation.  
To add a sound effect  
1
2
Press OPTIONS.  
To  
Press  
Turn OPERATION DIAL to select  
the item you want.  
Reinforce the  
GROOVE repeatedly  
bass and create until “GROOVE”* or  
a more powerful “Z-GROOVE”* lights up  
ILLUM  
sound  
in the display.  
Change the power illuminator pattern  
around MASTER VOLUME.  
Select the  
SURROUND repeatedly  
surround effect until “SURROUND”  
lights up in the display.  
M-BACKLIGHT (Meter backlight)  
Select a preset PRESET EQ (or EQ on  
Change the Meter Backlight pattern.  
sound effect  
the remote) repeatedly. To  
cancel, press PRESET EQ  
(or EQ on the remote)  
repeatedly until “FLAT”  
appears.  
MTR POINTER (Meter pointer)  
Change the Meter Pointer pattern.  
DISPLAY (Front panel display)  
Change the front panel display pattern.  
Enhance the  
OPTIONS and turn  
sound quality of OPERATION DIAL to  
the audio file  
select “MP3  
BOOSTER+”, then press  
ENTER. Turn  
OPERATION DIAL to  
select“AUTO”,thenpress  
ENTER.**  
3
4
Press ENTER.  
Turn OPERATION DIAL to select  
the setting you want, then press  
ENTER.  
5
Repeat steps 2 through 4 to  
make other settings.  
* The volume switches to power mode and the  
equalizer curve changes.  
**“BOOSTER” lights up in the display when  
the MP3 BOOSTER+ effect is activated.  
To exit the OPTIONS menu  
Press OPTIONS again.  
To turn on the subwoofer  
(MHC-GT555, MHC-GT444 and  
LBT-ZT4 only)  
To return to the previous display  
Press RETURN.  
Press SUBWOOFER repeatedly until the  
SUBWOOFER indicator on the unit lights  
up. If you later disconnect the subwoofer,  
repeat the procedure until the  
SUBWOOFER indicator on the unit lights  
off. The volume of the subwoofer is  
linked to the front speakers.  
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Notes on the display information  
• Characters that cannot be displayed appear as  
“_”.  
Changing the display mode  
• The following are not display correctly:  
– elapsed playing time of an audio file  
encoded using a 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 ID3 tag information for MP3 files is  
displayed 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).  
Press DISPLAY repeatedly while  
the system is turned off.  
Demonstration  
The display changes and the indicator  
flashes even when the system is turned  
off.  
No display (Power Saving mode)  
The display is turned off to conserve  
power. The timer and clock continue to  
operate. You cannot turn on the system by  
pressing the function buttons.  
Using the Meter Display  
Clock  
The clock is display.  
The clock display automatically turns to  
Power Save Mode after 8 seconds.  
You can easily view the information  
through the meter display such as the  
music source level.  
Press METER MODE repeatedly to  
select a preset display pattern.  
The power illuminator, meter backlight  
display, meter pointer display and front  
panel display will change according to the  
preset display pattern you have selected.  
Changing information in the  
display  
Press DISPLAY repeatedly when  
the system is turned on.  
You can view the elapsed playing time  
and remaining playing time during  
playback and total playing time during  
stop mode for AUDIO CD.  
For audio files, you can view the elapsed  
playing time, the file and folder names.  
You can also view the title, artist and  
album information that is stored in the  
files.  
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Disc tray Selected track or file  
number number  
Other Operations  
Z-GROOVE  
1
2
3
PGM  
DISC  
CD  
Creating your own  
program  
Total playing time of program  
(including selected track or file)  
— Program Play  
5
Press ENTER (RM-AMU006) or  
(RM-AMU008) to add the track  
or file to the program.  
1
Select the function you want.  
CD function  
Press CD (RM-AMU006) or press  
FUNCTION +/– (RM-AMU008)  
repeatedly to select the CD function.  
CD function  
“– –.– –” appears when the total  
program time exceeds 100 minutes for  
an AUDIO CD or when you select an  
MP3 file.  
USB function  
Press USB (RM-AMU006) or press  
FUNCTION +/– (RM-AMU008)  
repeatedly to select the USB function.  
USB function  
The total program time cannot be  
displayed, so “– –.– –” appears.  
2
3
Press PLAY MODE repeatedly in  
stop mode until “PGM” lights up  
in the display.  
6
7
Repeat steps 3 through 5 to  
program additional tracks, files,  
folders or discs up to a total of  
25 steps.  
For CD function, press DISC  
SKIP repeatedly (or press  
DISC 1 – 3 on the unit) to select  
a disc.  
To play your program of tracks  
or files, press N.  
To program all the tracks on a disc at  
once, proceed to step 5 while “ALL”  
appears in the display.  
The program remains available until  
you open the disc tray or remove the  
USB device. To play the same  
program again, press N.  
To program all the MP3 files on a  
folder at once, press  
+/–  
repeatedly until the folder you want  
appears in the display, then proceed to  
step 5.  
To cancel Program Play  
Press PLAY MODE repeatedly in stop  
mode until “PGM” lights off in the  
display.  
4
Press ./> repeatedly until  
the track or file number you want  
appears.  
To delete the last step of the  
program  
When programming audio files, press  
+/– repeatedly to select the folder  
you want, and then select the file you  
want.  
Press CLEAR in stop mode.  
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Presetting radio  
stations  
Using the Radio Data  
System (RDS)  
You can preset your favorite radio  
stations and tune them in instantly by  
selecting the corresponding preset  
number.  
Use the buttons on the remote for this  
operation.  
(European model only)  
What is the Radio Data System?  
Radio Data System (RDS) is a  
broadcasting service that allows radio  
stations to send additional information  
along with the regular program signal.  
This tuner offers convenient RDS features  
such as station name. RDS is available  
only on FM stations.*  
1
2
Tune in the station you want  
(see “Listening to the radio”  
(page 17)).  
Press TUNER MEMORY.  
Note  
RDS may not work properly if the station you  
are tuned in is not transmitting the RDS signal  
properly or if the signal is weak.  
Preset number  
GROOVE  
REC  
1
2
3
ST  
AUTTUNED  
* Not all FM stations provide RDS service, nor  
do they provide the same type of services. If  
you are not familiar with the RDS system,  
check with your local radio stations for details  
on RDS services in your area.  
MHz  
3
Press +/– repeatedly to select  
the preset number you want.  
If another station is already assigned to  
the selected preset number, the station  
is replaced by the new station.  
Receiving RDS broadcasts  
Simply select a station from the FM  
band.  
When you tune in a station that provides  
RDS services, the station name appears in  
the display.  
4
5
Press ENTER.  
Repeat steps 1 through 4 to  
store other stations.  
To check the RDS information  
While receiving an RDS station,  
press DISPLAY repeatedly.  
You can preset up to 20 FM and 10  
AM stations.  
6
To call up a preset radio station,  
press TUNING MODE repeatedly  
until “PRESET” lights up in the  
display, and then press +/–  
repeatedly to select the preset  
number you want.  
RDS information appears on the display.  
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Manual Recording and Sound  
Mixing  
Recording onto a tape  
— CD-TAPE Synchro  
Recording/Manual  
To record sound from a microphone,  
press CD (RM-AMU006) or press  
FUNCTION +/– (RM-AMU008)  
repeatedly (or press CD on the unit) to  
select the CD function, and do not start  
playing any disc in step 3.  
Recording/Sound Mixing  
You can record on a TYPE I (normal) tape  
in three ways:  
3
Start recording.  
Press z and B on the tape deck at the  
same time.  
CD-TAPE Synchro Recording:  
You can record an entire disc onto a tape.  
CD-TAPE Synchro Recording  
The disc starts playing automatically  
after 10 seconds.  
Manual Recording:  
You can record just the portions you like  
from a sound source, including connected  
audio components.  
Manual Recording and Sound  
Mixing  
Sound Mixing:  
Start playing the recording source.  
If there is noise while recording from  
the tuner, reposition the antenna to  
reduce the noise.  
While recording, you cannot listen to  
other sources. Otherwise, recording  
stops.  
You can “mix” sounds by playing one of  
the components and singing or speaking  
into a microphone (not supplied). The  
mixed sound can be recorded onto a tape.  
1
2
Load a recordable tape into the  
tape deck with the side you want  
to record facing up.  
To stop recording  
Press x Z on the tape deck.  
Prepare the recording source.  
Select the source you want to record.  
Notes  
CD-TAPE Synchro Recording  
Press CD (RM-AMU006) or press  
FUNCTION +/– (RM-AMU008)  
repeatedly (or press CD on the unit) to  
select the CD function. Load the disc  
you want to record, and press DISC  
SKIP repeatedly to select the disc.  
To select the play mode, press PLAY  
MODE repeatedly in stop mode (see  
“To change the play mode” (page 17)).  
To record your favorite CD tracks or  
MP3 files in the order you want,  
perform steps 2 to 6 of “Creating your  
own program” (page 27).  
• We recommend that you press X on the tape  
deck first, then press x Z on the tape deck to  
avoid noise being recorded when you stop  
recording.  
• You cannot eject the disc, select another disc,  
track or file, pause playback or find a point in  
the track or file during CD-TAPE Synchro  
Recording.  
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Creating your own  
sound effect  
You can raise or lower the levels of  
specific frequency ranges or select the  
surround effect, and then store the setting  
as “USER EQ” in the memory.  
Use the buttons on the unit for this  
operation.  
Enjoying karaoke  
You can sing along by connecting an  
optional microphone.  
1
Turn MIC LEVEL on the unit to  
MIN to turn down the  
microphone volume level.  
2
Connectanoptionalmicrophone  
to the MIC jack on the unit.  
1
Press PRESET EQ or GROOVE  
repeatedly to select the audio  
emphasis you want for your  
basic sound.  
3
4
Start playing the music.  
Turn MIC LEVEL on the unit to  
adjust the microphone volume.  
2
Press EQ BAND repeatedly to  
select a frequency band or  
surround effect setting, and then  
turn OPERATION DIAL to adjust  
the equalizer level or select the  
surround effect you want.  
Repeat this for each band you  
want to adjust.  
If acoustic feedback (howling) occurs,  
reduce the volume, move the  
microphone away from the speakers,  
or change the direction of the  
microphone.  
After you have finished, disconnect the  
microphone from the MIC jack on the  
unit.  
Frequency band  
Equalizer level  
GROOVE  
REC  
ST  
1
2
3
AUTO TUNED  
MHz  
3
Press ENTER.  
“USER EQ” appears and the setting is  
stored in the memory.  
To call up the personal sound effect  
Press PRESET EQ repeatedly until  
“USER EQ” appears.  
To cancel the sound effect  
Press PRESET EQ repeatedly until  
“FLAT” appears.  
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1
Prepare the sound source.  
Using the Timers  
Play Timer  
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 27).  
The system offers three timer functions.  
You cannot activate both the Play Timer  
and the Recording Timer at the same time.  
If you use either with the Sleep Timer, the  
Sleep Timer has priority.  
Recording Timer  
Tune in the preset radio station  
(page 28).  
Sleep Timer  
You can fall asleep to music. This  
function works even if the clock is not set.  
2
3
Press CLOCK/TIMER SET  
(RM-AMU006) or TIMER MENU  
(RM-AMU008).  
Press SLEEP repeatedly.  
Press ./> (RM-AMU006)  
or v/V(RM-AMU008) repeatedly  
to select “PLAY SET” or  
“REC SET”, and then press  
ENTER (RM-AMU006) or  
(RM-AMU008).  
If you select “AUTO”, the system  
automatically turns off  
– after the disc stops or after 100 minutes  
in CD function.  
– after the USB device stops or after 100  
minutes in USB function.  
– after 100 minutes in other functions.  
Do not select “AUTO” during CD-TAPE  
Synchro Recording, CD-USB  
Synchronized Transfer, or during the  
erase operation.  
“ON” appears, and the hour indication  
flashes.  
4
5
Set the time to start playing or  
recording.  
Press ./> (RM-AMU006)  
or v/V (RM-AMU008) repeatedly  
to set the hour, and then press  
ENTER (RM-AMU006) or  
(RM-AMU008). The minute  
indication flashes. Use the procedure  
above to set the minutes.  
Tip  
The system will not turn off automatically at the  
preset time when you  
– perform the erase operation in USB function.  
– play a tape.  
– record onto a tape.  
Play Timer/Recording Timer  
Use the same procedure as in  
step 4 to set the time to stop  
playing or recording.  
Make sure you have set the clock.  
Play Timer:  
You can wake up to disc, tuner or optional  
USB device at a preset time.  
Recording Timer:  
You can transfer music from a preset radio  
station into an USB device at a specified  
time.  
Continued  
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6
7
Select the sound source or  
prepare the USB device.  
To activate or check the timer again  
RM-AMU006:  
Play Timer  
Press CLOCK/TIMER SELECT, press  
./> repeatedly until “PLAY  
SELECT” or “REC SELECT” appears,  
and then press ENTER.  
Press ./> (RM-AMU006)  
or v/V (RM-AMU008) repeatedly  
until the sound source you want  
appears, and then press ENTER  
(RM-AMU006) or  
RM-AMU008:  
Press TIMER MENU to select “TIMER  
SELECT”, then press . Press v/V  
repeatedly until “PLAY SELECT” or  
“REC SELECT” appears, and then  
(RM-AMU008). The display shows  
the timer settings.  
Recording Timer  
Connect a transferable USB device to  
press  
.
the  
(USB) port on the unit. The  
Unit:  
display shows the timer settings.  
Press REC TIMER, turn OPERATION  
DIAL until “REC SELECT” appears, and  
then press ENTER.  
Press "/1 to turn off the system.  
To set the Recording Timer using the  
controls on the unit (REC TIMER)  
To cancel the timer  
Repeat the same procedure as above until  
“TIMER OFF” appears, and then press  
ENTER (RM-AMU006 or on the unit) or  
(RM-AMU008).  
1 Tune in the preset station  
(page 28).  
2 Press REC TIMER.  
“ON” appears, and the hour indication  
flashes.  
To change the setting  
Start over from step 1.  
3 Turn OPERATION DIAL to set the  
hour, then press ENTER.  
Tips  
• The system turns on before the preset time. If  
the system is turned on at the preset time or if  
“STANDBY” flashes in the display, the Play  
Timer and the Recording Timer will not play  
or record.  
• The Play Timer setting remains as long as the  
setting is not canceled manually.  
• The volume is reduced to minimum during the  
Recording Timer.  
The minute indication flashes. Use the  
procedure above to set the minutes.  
4 Use the same procedure as in step  
3 to set the time to stop recording.  
The display shows the timer settings.  
5 Connect a transferable USB device  
to the  
(USB) port on the unit.  
• The Recording Timer is canceled  
automatically after the Recording Timer has  
been activated.  
6 Press "/1 to turn off the system.  
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Sound comes from one channel,  
or the left and right volumes are  
unbalanced.  
• Place the speakers as symmetrically as  
possible.  
Others  
Troubleshooting  
1 Make sure the power cord and  
speaker cords are correctly and  
firmly connected.  
• Connect only the supplied speakers.  
Severe hum or noise.  
• Move the system away from sources of  
noise.  
• Connect the system to a different wall  
socket.  
• Install a noise filter (available  
separately) to the power cord.  
• Turn off the surrounding electrical  
equipment.  
2 Find your problem in the checklist  
below, and take the indicated  
corrective action.  
If the problem persists, contact your  
nearest Sony dealer.  
Note that if service personnel changes  
some parts during repair, these parts  
may be retained.  
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.  
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?  
• Point the remote at the system’s sensor.  
• Move the remote closer to the system.  
CD/MP3 player  
• Are you using only the supplied  
speakers?  
The sound skips, or the disc will not  
play.  
• Is anything blocking the ventilation  
holes on the back of the unit?  
After checking the above items and  
fixing any problems, plug in the power  
cord again and turn on the system. If  
the STANDBY indicator still flashes,  
or if the cause of the problem cannot  
be found even after checking all the  
above items, consult your nearest  
Sony dealer.  
• Wipe the disc clean.  
• Move the system to a location away  
from vibration (for example, on top of a  
stable stand).  
• Move the speakers away from the unit,  
or place them on separate stands. At  
high volume, speaker vibration may  
cause the sound to skip.  
Play does not start from the first  
track.  
• Press PLAY MODE repeatedly until  
both “PGM” and “SHUF” light off in  
the display to return to normal play.  
General  
The display starts flashing as soon as  
you plug in the power cord even  
though you have not turned on the  
system.  
• Press DISPLAY once while the system  
is turned off. The demonstration  
disappears.  
Continued  
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Starting playback takes more time  
than usual.  
Transferring to an USB device results  
in an error.  
• The following MP3 discs take a longer  
time to start playback.  
– a disc recorded with a complicated  
tree structure.  
• You are using an unsupported USB  
device. See “Compatible USB devices  
with this system” (page 44) for the  
supported device types.  
– 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.  
• The USB device was disconnected or  
the power was turned off during  
transferring. Delete the partially-  
transferred file, and transfer again. If  
this does not fix the problem, the USB  
device may be broken. Refer to the USB  
device operation manual on how to deal  
with this problem.  
• 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 transferring  
again.  
USB device  
You cannot start transferring to an  
USB device.  
• The following problems may have  
occurred.  
– The USB device is full.  
– The number of audio files and folders  
on the USB device has reached the  
upper limit.  
Audio files or folders on the USB  
device cannot be erased.  
– The USB device is write-protected.  
• Check if the USB device is write-  
protected.  
Transferring is stopped before it is  
finished.  
• You are using an unsupported USB  
device. See “Compatible USB devices  
with this system” (page 44) for the  
supported device types.  
• The USB device is not formatted  
correctly. Refer to the USB device  
operation manual on 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 transferring  
again.  
• If the transferring and erase operations  
are repeated multiple times, the file  
structure within the USB device  
becomes complex. Refer to the USB  
device operation manual on how to deal  
with this problem.  
• 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 on how to deal with  
this problem.  
Are you using a supported USB  
device?  
• If you connect an unsupported USB  
device, the following problems may  
occur. See “Compatible USB devices  
with this system” (page 44) 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.  
– Transferring stops before it is finished.  
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“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.  
Erroneous display.  
• Send the audio files to the USB device  
again, as the audio files 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.  
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 44).  
• The USB device does not work  
properly. Refer to the USB device  
operation manual on how to deal with  
this problem.  
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 “USB  
MEMORY” lights up in the display.  
There is noise, skipping, or distorted  
sound.  
Play does not start.  
• 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 transferring process.  
Delete the file, and try transferring  
again.  
• Turn off the system and reconnect the  
USB device, then turn on the system.  
• Connect the supported USB device  
(page 44).  
• Press N (or NX on the unit) to start  
play.  
Play does not start from the first file.  
The USB device cannot be connected  
• Set the play mode to normal play mode.  
into the  
(USB) port.  
• The USB device is being connected  
backwards. Connect the USB device in  
the correct orientation.  
Audio file cannot be played back.  
• MP3 files in MP3 PRO format cannot be  
played back.  
• Some AAC files may not be played back  
correctly.  
• WMA files in Windows Media Audio  
Lossless and Professional format cannot  
be played back.  
• USB device formatted with file systems  
other than FAT16 or FAT32 (Cluster  
size 512 byte – 32 kbyte) are  
unsupported.*  
• If you use partitioned USB device, only  
audio files on the first partition can be  
played.  
“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  
• Playback is possible up to 8 levels.  
• The number of folders has exceeded  
997.  
– Total files per folder: 100 or less  
Continued  
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• The number of files in a folder has  
exceeded 999.  
Meter  
• Files that are encrypted or protected by  
passwords, etc. cannot be played back.  
Meter pointer does not move.  
• “MTR POINTER” is set to “OFF” in the  
OPTIONS menu. Select other settings.  
• Meter mode is set to “METER OFF”.  
Press METER MODE on the unit  
repeatedly to select other modes.  
• The headphones are connected to the  
PHONES jack. Disconnect the  
headphones.  
* This system supports FAT16 and FAT32, but  
some USB device may not support all of these  
FAT. For details, refer to the operation  
manual of each USB device or contact the  
manufacturer.  
Tuner  
Meter display is turned off.  
• “MTR POINTER” and  
“M-BACKLIGHT” are set to “OFF” in  
the OPTIONS menu. Select other  
settings.  
• Meter mode is set to “METER OFF”.  
Press METER MODE on the unit  
repeatedly to select other modes.  
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.  
Meter display is flashing.  
• “MTR POINTER” and  
“M-BACKLIGHT” are set to “FLASH”  
in the OPTIONS menu. Select other  
settings.  
• Meter mode is set to “EXCITE 1” or  
“EXCITE 2”. Press METER MODE on  
the unit repeatedly to select other  
modes.  
• Consult your nearest Sony dealer if the  
supplied AM antenna has come off the  
plastic stand.  
• Turn off nearby electrical equipment.  
Tape deck  
The sound exhibits excessive wow or  
flutter or dropout.  
• Clean the capstans and pinch rollers.  
Also, clean and demagnetize the tape  
heads. See “Precautions” for details  
(page 38).  
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To change the AM tuning interval  
(except for European and Russian  
models)  
The AM tuning interval is factory-preset  
to 9 kHz (or 10 kHz, for some areas). You  
cannot change the AM tuning interval in  
Power Saving Mode.  
Messages  
CD/MP3 player, Tuner, Tape  
LOCKED: The disc tray does not open.  
Contact your nearest Sony dealer.  
NO DISC: There is no disc on the disc  
tray.  
Use the buttons on the unit for this  
operation.  
NO STEP: All of the programmed steps  
have been erased.  
1 Select the AM band, and then turn  
off the system.  
NOT IN USE: You pressed an invalid  
button.  
2 While holding down ENTER, press  
"/1.  
The system turns on automatically and  
“AM 9K STEP” or “AM 10K STEP”  
appears.  
All the AM preset stations are erased.  
To reset the interval to the factory  
preset, repeat the procedure.  
OFF TIME NG: The Play Timer or  
Recording Timer start and stop times  
are set to the same time.  
OVER: You have reached the end of the  
disc while pressing M during  
playback or pause.  
PUSH SELECT: You tried to set the  
clock or timer during timer operation.  
To reset the system to factory  
settings  
PUSH STOP: Stop playback, then select  
the play mode.  
If the system still does not operate  
properly, reset the system to factory  
settings. You cannot reset the system to  
factory settings in Power Saving Mode.  
Use the buttons on the unit for this  
operation.  
READING: The system is reading  
information of the disc. Some buttons  
are not available.  
SET CLOCK: You pressed CLOCK/  
TIMER SELECT (RM-AMU006)  
before the clock is set.  
1 Disconnect and reconnect the  
power cord, and then turn on the  
system.  
SET TIMER: You pressed CLOCK/  
TIMER SELECT (RM-AMU006)  
before the Play Timer or Recording  
Timer is set.  
2 Press x, ENTER, and "/1 at the  
same time.  
“COLD RESET” appears in the  
display.  
All user-configured settings, such as  
preset radio stations, timer, and the  
clock, are reset to factory setting.  
STEP FULL: You tried to program more  
than 25 steps.  
USB device  
DATA ERROR: You tried to play a file  
that is not playable.  
DEVICE ERROR: The USB device  
could not be recognized or an unknown  
device is connected (page 34).  
Continued  
l
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DEVICE FULL: The memory of the USB  
device is full.  
Precautions  
FATAL ERROR: The USB device was  
removed during transferring or erase  
operation, and may have been damaged.  
Discs that this system CAN play  
• AUDIO CD  
• CD-R/CD-RW (audio data/MP3 files)  
FOLDER FULL: You cannot transfer  
onto the USB device because the  
number of folders have reached its  
maximum.  
Discs that this system CANNOT play  
• CD-ROM  
• CD-R/CD-RW other than those recorded in  
AUDIO CD format or MP3 format  
conforming to ISO 9660 Level 1/Level 2,  
Joliet in the expansion format  
• 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 Layer-3 (MP3) files  
• Discs of non-standard shape (for example,  
heart, square, star)  
NO STEP: All of the programmed steps  
have been erased.  
NO TRACK: No playable file is 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, or the USB  
device is connected to this system  
through a hub.  
OVER CURRENT: An over current was  
detected.  
• Discs that have adhesive tape, paper, or  
sticker attached to them  
PROTECTED: The USB device is write-  
• 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  
protected.  
PUSH STOP: You tried to perform an  
operation that can be performed only  
when the system is stopped.  
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.  
REC ERROR: Transferring did not start,  
stopped partway, or otherwise could not  
be performed (page 34).  
REMOVED: The USB device has been  
removed.  
• 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.  
STEP FULL: You tried to program more  
than 25 steps.  
TRACK FULL: You cannot transfer onto  
the USB device because the number of  
files have reached its maximum.  
USB READING: The system is reading  
information of the USB device. Some  
buttons are not available.  
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On safety  
Cleaning the cabinet  
• 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.  
• 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.  
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.  
To prevent a tape from being  
accidentally recorded over  
• Should any solid object or liquid get into the  
system, unplug the system, and have it  
checked by qualified personnel before  
operating it again.  
Break off the tape’s overwrite protection tab  
from side A or B as illustrated.  
• AC power cord must be changed only at the  
qualified service shop.  
Break  
off the  
tape tab  
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.  
To later reuse the tape for recording, cover the  
broken tab with adhesive tape.  
• 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 unit, 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.  
About a tape longer than 90 minutes  
The use of the tape with more than 90 minutes  
of play time is not recommended except for  
long, continuous recording or playback.  
Cleaning the tape heads  
Use a dry- or wet-type cleaning tape (available  
separately) after every 10 hours of use, before  
you start an important recording, or after  
playing an old tape. Failure to clean the tape  
heads can cause degraded sound quality or an  
inability of the unit to record or play tapes. For  
details, refer to the instructions of the cleaning  
tape.  
On heat buildup  
• Heat buildup on the unit during operation is  
normal and is not a 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.  
Demagnetizing the tape heads  
Use a demagnetizing tape (available separately)  
after every 20 to 30 hours of use. Failure to  
demagnetize the tape heads can cause an  
increase in noise, a loss of high frequency  
sound, and an inability to completely erase  
tapes. For details, refer to the instructions of the  
demagnetizing tape.  
• 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.  
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MHC-GT444  
Brazilian model only  
The following are measured at AC 127 or  
220 V 50/60 Hz  
Specifications  
AUDIO POWER SPECIFICATION  
POWER OUTPUT AND TOTAL  
HARMONIC DISTORTION:  
(LBT-ZT4 only)  
Front speaker  
RMS output power (reference):  
125 W + 125 W (at 6 Ω, 1 kHz,  
10% THD)  
With 6 ohm loads, both channels driven,  
from 120 Hz – 10 kHz; rated 110 watts per  
channel minimum RMS power, with no  
more than 0.7% total harmonic distortion  
from 250 miliwatts to rated output.  
Subwoofer  
RMS output power (reference): 150 W  
(at 6 Ω, 100 Hz, 10% THD)  
Other models  
The following are measured at AC 120, 127,  
220, 230 – 240 V 50/60 Hz  
Front speaker  
Amplifier section  
MHC-GT555  
Power output (rated): 90 W + 90 W  
(at 6 Ω, 1 kHz, 1% THD)  
RMS output power (reference):  
150 W + 150 W (per channel at 6 Ω,  
1 kHz, 10% THD)  
Brazilian model only  
The following are measured at AC 127 or  
220 V 50/60 Hz  
Front speaker  
RMS output power (reference):  
150 W + 150 W (at 6 Ω, 1 kHz,  
10% THD)  
Subwoofer  
RMS output power (reference): 150 W  
(at 6 Ω, 100 Hz, 10% THD)  
Subwoofer  
RMS output power (reference): 190 W  
(at 6 Ω, 100 Hz, 10% THD)  
MHC-GT222  
Brazilian model only  
The following are measured at AC 127 or  
220 V 50/60 Hz  
Other models  
The following are measured at AC 120, 127,  
220, 230 – 240 V 50/60 Hz  
Front speaker  
RMS output power (reference):  
150 W + 150 W (at 6 Ω, 1 kHz,  
10% THD)  
Power output (rated): 110 W + 110 W  
(at 6 Ω, 1 kHz, 1% THD)  
RMS output power (reference):  
200W + 200 W (per channel at 6 Ω,  
1 kHz, 10% THD)  
Other model  
The following are measured at AC 120, 127,  
220, 230 – 240V 50/60 Hz  
Power output (rated): 110 W + 110 W  
(at 6 Ω, 1 kHz, 1% THD)  
RMS output power (reference):  
200 W + 200 W (per channel at 6 Ω,  
1 kHz, 10% THD)  
Subwoofer  
RMS output power (reference): 190 W  
(at 6 Ω, 100 Hz, 10% THD)  
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MHC-GT111  
USB section  
Supported bit rate  
Brazilian model only  
The following are measured at AC 127 or  
220 V 50/60 Hz  
MP3 (MPEG 1 Audio Layer-3):  
32 – 320 kbps, VBR  
RMS output power (reference):  
100 W + 100 W (at 6 Ω, 1 kHz,  
10% THD)  
WMA: 32 – 192 kbps, VBR  
AAC: 48 – 320 kbps  
Sampling frequencies  
MP3 (MPEG 1 Audio Layer-3):  
32/44.1/48 kHz  
WMA: 44.1 kHz  
Other models  
The following are measured at AC 120, 127,  
220, 230 – 240V 50/60 Hz  
Power output (rated): 60 W + 60 W  
(at 6 Ω, 1 kHz, 1% THD)  
AAC: 44.1 kHz  
Transfer speed  
Full-Speed  
Supported USB device  
Mass Storage Class  
Maximum current  
500 mA  
RMS output power (reference):  
100 W + 100 W (per channel at 6 Ω,  
1 kHz, 10% THD)  
LBT-ZT4  
The following are measured at AC 120 V  
60 Hz  
CD player section  
System: Compact disc and digital audio  
Front speaker  
system  
Laser Diode Properties  
RMS output power (reference):  
180 W + 180 W (per channel at 6 Ω,  
1 kHz, 10% THD)  
Emission Duration: Continuous  
Laser Output*: Less than 44.6 µW  
* This output is the value measurement  
at a distance of 200 mm from the  
objective lens surface on the Optical  
Pick-up Block with 7 mm aperture.  
Frequency response: 20 Hz – 20 kHz  
Signal-to-noise ratio: More than 90 dB  
Dynamic range: More than 88 dB  
Subwoofer  
RMS output power (reference): 180 W  
(at 6 Ω, 100 Hz, 10% THD)  
Inputs  
AUDIO INPUT (LBT-ZT4 only): sensitivity  
800 mV, impedance 47 kilohms  
AUDIO INPUT L/R (other models): voltage  
250 mV, impedance 47 kilohms  
MIC: sensitivity 1 mV, impedance  
10 kilohms  
Tape deck section  
Recording system: 4-track 2-channel, stereo  
(USB) port: Type A  
Tuner section  
DMPORT (LBT-ZT4 only)  
FM stereo, FM/AM superheterodyne tuner  
Outputs  
FM tuner section  
Tuning range:  
PHONES: accepts headphones of 8 Ω or  
more  
North American and Brazilian models:  
87.5 – 108.0 MHz (100 kHz step)  
Other models:  
FRONT SPEAKER: accepts impedance of  
6 Ω  
SUBWOOFER (MHC-GT555/  
MHC-GT444/LBT-ZT4 only): accepts  
impedance of 6 Ω  
87.5 – 108.0 MHz (50 kHz step)  
Antenna: FM lead antenna  
Antenna terminals: 75 ohms unbalanced  
Intermediate frequency: 10.7 MHz  
Continued  
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AM tuner section  
MHC-GT444  
Tuning range  
• Front speaker (European model except  
United Kingdom and Russian only)  
(SS-GT444M)  
Front speaker (Other models)  
(SS-GT444)  
Pan American and Oceanian models:  
530 – 1,710 kHz (with 10 kHz tuning  
interval)  
531 – 1,710 kHz (with 9 kHz tuning  
interval)  
European and Russian models:  
531 – 1,602 kHz (with 9 kHz tuning  
interval)  
Other models:  
530 – 1,610 kHz (with 10 kHz tuning  
interval)  
531 – 1,602 kHz (with 9 kHz tuning  
interval)  
Speaker system: 3-way, 3-unit, bass  
reflex  
Speaker unit:  
Subwoofer: 130 mm, cone type  
Woofer: 130 mm, cone type  
Tweeter: 40 mm, horn type  
Rated impedance: 6 ohms  
Dimensions (w/h/d) (Approx.):  
238 × 361 × 238 mm  
Mass (Approx.): 3.9 kg per speaker  
Antenna: AM loop antenna, external antenna  
terminal  
Intermediate frequency: 450 kHz  
• Subwoofer (European model except  
United Kingdom and Russian only)  
(SS-WG444M)  
Subwoofer (Other models)  
(SS-WG444)  
Speakers  
MHC-GT555  
Speaker system: 1-unit, bass reflex  
• Front speaker (SS-GT555M)  
Speaker system: 3-way, 3-unit, bass  
reflex  
Speaker unit:  
Woofer: 200 mm, cone type  
Rated impedance: 6 ohms  
Dimensions (w/h/d) (Approx.):  
266 × 361 × 320 mm  
Speaker unit:  
Subwoofer: 150 mm, cone type  
Woofer: 150 mm, cone type  
Tweeter: 40 mm, horn type  
Rated impedance: 6 ohms  
Dimensions (w/h/d) (Approx.):  
250 × 391 × 282 mm  
Mass (Approx.): 6.3 kg  
MHC-GT222  
• Front speaker (European model only)  
(SS-GT444M)  
Front speaker (Other models)  
(SS-GT444)  
Mass (Approx.): 5.1 kg per speaker  
• Subwoofer (SS-WG555M)  
Speaker system: 1-unit, bass reflex  
Speaker unit:  
Speaker system: 3-way, 3-unit, bass  
reflex  
Speaker unit:  
Subwoofer: 130 mm, cone type  
Woofer: 130 mm, cone type  
Tweeter: 40 mm, horn type  
Rated impedance: 6 ohms  
Dimensions (w/h/d) (Approx.):  
238 × 361 × 238 mm  
Woofer: 250 mm, cone type  
Rated impedance: 6 ohms  
Dimensions (w/h/d) (Approx.):  
319 × 391 × 326 mm  
Mass (Approx.): 7.8 kg  
Mass (Approx.): 3.9 kg per speaker  
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MHC-GT111  
• Front speaker (European model only)  
(SS-GT111M)  
Front speaker (Asian model only)  
(SS-GT111S)  
Front speaker (Other models)  
(SS-GT111)  
Oceanian model: AC 230 – 240 V,  
50/60 Hz  
Mexican model: AC 127 V, 60 Hz  
Argentine model: AC 220 V, 50/60 Hz  
Other models: AC 120, 220 or 230 –  
240 V, 50/60 Hz, Adjustable with  
voltage selector  
Speaker system: 2-way, 2-unit, bass  
reflex  
Speaker unit:  
Power consumption  
MHC-GT555: 216 W  
MHC-GT444: 286 W  
Woofer: 160 mm, cone type  
Tweeter: 40 mm, horn type  
Rated impedance: 6 ohms  
Dimensions (w/h/d) (Approx.):  
216 × 361 × 208 mm  
MHC-GT222: 163 W  
MHC-GT111 (Brazilian model):  
185 W  
MHC-GT111 (Other models): 150 W  
LBT-ZT4 (American model): 225 W  
LBT-ZT4 (Canadian model): 285 VA  
Dimensions (w/h/d) (excl. speakers)  
Approx. 231 × 361 × 437.5 mm  
(9 1/8 × 14 1/4 × 17 1/4 inch)  
Mass (excl. speakers)  
Mass (Approx.): 2.7 kg per speaker  
LBT-ZT4  
• Front speaker (SS-ZT4)  
Speaker system: 3-way, 3-unit, bass  
reflex  
HCD-GT555/GT444/GT222,  
HCD-ZT4: 10.0 kg (22 lb 1 oz)  
HCD-GT222 (European model):  
9.6 kg  
Speaker unit:  
Subwoofer: 5 inch (130 mm), cone  
type  
Woofer: 5 inch (130 mm), cone type  
Tweeter: 1 1/2 inch (40 mm), horn type  
Rated impedance: 6 ohms  
Dimensions (w/h/d) (Approx.):  
9 3/8 × 14 1/4 × 9 3/8 inch (238 ×  
361 × 238 mm)  
HCD-GT111: 8.0 kg  
Supplied accessories:  
Remote Commander (1), R6 (Size AA)  
batteries (2), AM loop antenna (1), FM lead  
antenna (1), Speaker pads MHC-GT555/  
MHC-GT444/LBT-ZT4 (12), MHC-GT222/  
MHC-GT111 (8), TDM-iP10 (M)  
(LBT-ZT4 only) (1)  
Mass (Approx.): 8 lb 10 oz (3.9 kg) per  
speaker  
• Subwoofer (SS-WG4)  
Speaker system: 1-unit, bass reflex  
Speaker unit:  
Design and specifications are subject to  
change without notice.  
Woofer: 8 inch (200 mm), cone type  
Rated impedance: 6 ohms  
Dimensions (w/h/d) (Approx.):  
10 1/2 × 14 1/4 × 12 5/8 inch (266 ×  
361 × 320 mm)  
• Standby power  
consumption: 0.5 W  
• Halogenated flame  
retardants are not used in the  
certain printed wiring  
boards.  
Mass (Approx.): 13 lb 15 oz (6.3 kg)  
General  
Power requirements  
North American model: AC 120 V,  
60 Hz  
European and Russian models:  
AC 230 V, 50/60 Hz  
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<Latin America>  
http://www.sony-latin.com/pa/info  
<Asia and Oceania>  
http://www.css.ap.sony.com/  
Compatible USB  
devices with this  
system  
You can use the following Sony USB  
devices and Sony Ericsson mobile phone  
on this system.  
Notes  
• 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.  
• When formatting USB device, be sure to  
format using the device itself or the dedicated  
formatting software for that device.  
Verified Sony USB device  
(as of March 2008)  
Product name Model name  
®
Walkman  
NWD-B103 / B103F /  
B105 / B105F  
Otherwise, you may be unable to transfer the  
USB device properly on this system.  
NWZ-A815 / A816 / A818  
Notes on using the Sony Ericsson  
mobile phone  
NWZ-S515 / S516 /  
• When connecting to this system, set the data  
transfer mode of your mobile phone to File  
Transfer (Mass Storage).  
For details, refer to the operation manual  
supplied with the mobile phone.  
• Use the USB cable supplied with the mobile  
phone when connecting to the system.  
• Some audio files supported by the mobile  
phone are not supported by this system.  
• In the case that the song which is registered as  
the playlist in the mobile phone is erased by  
this system, the playlist registration is not  
deleted.  
S615F / S616F / S618F  
IC Recorder  
ICD-SX57 / SX67 / SX77  
ICD-U50 / U60 / U70  
ICD-SX68 / SX78 / SX88  
MICROVAULT USM512JX / 1GJX /  
2GJX / 4GJX  
Verified Sony Ericsson mobile phone  
(as of March 2008)  
Product name Model name  
®
®
Walkman  
phone  
W880i / W850i / W710i /  
W660i / W580i  
Notes on Walkman  
• Some audio files supported by the Sony  
digital music player are not supported by this  
system.  
W910i  
• When the Sony digital music player is  
connected to this system, wait until the  
display of “Creating Library” or “Creating  
Database” disappears.  
• When transferring music data from the Sony  
digital music player by using “Media  
Manager for WALKMAN”, transfer in MP3  
format.  
Check the websites below for the latest  
information about compatible devices.  
<U.S.A.>  
http://www.sony.com/shelfsupport  
<Canada>  
(English)  
http://www.sony.ca/ElectronicsSupport/  
(French)  
http://fr.sony.ca/ElectronicsSupport/  
<Europe>  
• MP4 format file (AAC or VIDEO) cannot be  
displayed by this system.  
http://sonydigital-link.com/dna  
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(2)  
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