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© 2001 Sony Corporation
Operating Instructions
US
CDX-L550X
3-226-678-11 (1)
FM/AM
Compact Disc
Player
For installation and connections, see the supplied installation/connections
manual.
Owner's Record
The model and serial numbers are located on the bottom of the unit.
Record these numbers in the space provided below.
Refer to these numbers whenever you call upon your Sony dealer regarding this
product.
Model No. CDX-L550X Serial No.


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Welcome !
Thank you for purchasing this Sony Compact
Disc Player. You can enjoy its various features
even more with:
·CD TEXT information (displayed when a CD
TEXT disc* is played).
·Optional controller accessories
Rotary commander RM-X4S
Card remote commander RM-X114
* A CD TEXT disc is an audio CD that includes
information such as the disc name, artist name,
and track names. This information is recorded on
the disc.
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 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.
You are cautioned that any changes or
modifications not expressly approved in this
manual could void your authority to operate
this equipment.
CAUTION
The use of optical instruments with this
product will increase eye hazard.


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Table of Contents
Location of controls .................................................. 4
Precautions ................................................................ 6
Notes on discs ........................................................... 6
Getting Started
Resetting the unit ................................................. 7
Detaching the front panel ................................... 8
Setting the clock ................................................... 9
CD Player
Playing a disc ........................................................ 9
Display items ...................................................... 10
Playing tracks repeatedly
-- Repeat Play ............................................... 10
Playing tracks in random order
-- Shuffle Play ............................................... 10
Radio
Storing stations automatically
-- Best Tuning Memory (BTM) ................... 11
Receiving the stored stations ............................ 11
Storing only the desired stations ..................... 12
Storing station names
-- Station Memo ........................................... 12
Locating a station by name
-- List-up ....................................................... 13
Other Functions
Using the rotary commander ........................... 14
Adjusting the sound characteristics ................ 15
Quickly attenuating the sound ........................ 15
Changing the sound and display settings
-- Menu .......................................................... 16
Selecting the sound position
-- "My Best sound Position (MBP)" .......... 17
Setting the equalizer .......................................... 17
Additional Information
Maintenance ........................................................ 18
Removing the unit ............................................. 19
Specifications ...................................................... 20
Troubleshooting .................................................. 21
Error displays/Messages .................................. 22


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Location of controls
1 MBP (My Best sound Position) button 17
2 Z (eject) button (located on the front side
of the unit, behind the front panel) 9
3 MENU button 9, 11, 12, 13, 16, 18
4 Volume control dial
5 LIST button 13
6 Receptor for the card remote
commander
7 Display window
8 OPEN button 8, 9
9 EQ7 button 17
0 RESET button (located on the front side of
the unit, behind the front panel) 7
qa OFF (Stop/Power off) button* 8, 9
qs SOUND button 15, 17
qd SOURCE (Power on/Radio/CD) button
8, 9, 11, 12, 17
CDX-L550X
Refer to the pages listed for details.
: During Playback
: During radio reception
: During menu mode
MENU
qf ENTER button
13
9, 11, 12, 13, 16, 18
qg MODE button 11, 12
qh DSPL (display mode change) button
10, 13
qj Number buttons
(1) REP 10
(2) SHUF 10
11, 12
* Warning when installing in a car
without an ACC (accessory) position
on the ignition key switch
Be sure to press (OFF) on the unit for 2
seconds to turn off the clock display after
turning off the engine.
Otherwise, the clock display does not turn
off and this causes battery drain.
CD
RADIO
CD
RADIO
RADIO
MENU


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(SEEK)
(­): to select
leftwards/
.
Card remote commander
RM-X114 (optional)
The corresponding buttons of the card
remote commander control the same
functions as those on this unit.
1 DSPL button
2 MENU button
3 SOURCE button
4 SEEK (</,) buttons
5 SOUND button
6 OFF button
7 VOL (+/­) buttons
8 MODE button
9 LIST button
0 PRESET (M/m) buttons
qa ENTER button
qs ATT button
Note
If the unit is turned off by pressing (OFF) for 2
seconds, it cannot be operated with the card
remote commander unless (SOURCE) on the unit is
pressed, or a disc is inserted to activate the unit
first.
Tip
Refer to "Replacing the lithium battery" for details
on how to replace the batteries (page 19).
(SEEK)
(+):to select
rightwards
/>
(PRESET)
(+): to select upwards
(PRESET)
(­): to select downwards
qk PRESET buttons (+/­)
11, 13
9, 11, 12, 13, 16, 18
ql SEEK buttons (­/+) 15
9
11, 12
9, 12, 16, 18
RADIO
RADIO
CD
DISC ­
ATT
OFF
DSPL
MODE
SOURCE
DISC +
VOL
+
­
PRESET +
SEEK+
SEEK­
PRESET ­
SOUN
D
ENTER
MEN
U
LIST
In menu mode, the currently selectable
button (s) of these four are indicated with a
"M" in the display.
MENU
MENU