Sony CDX-7520 User's Manual

3-752-147-21 (1)
SONY
SC
DIGITAL AUDIO
FM/AM Compact Disc Player
CDX-7520
Operating Instructions Page 2
Before operating the unit, please read this manual thoroughly and retain it for
future reference.
Mode d'emploi page 23
Avant la mise en service de cet appareil, prière de lire attentivement ce mode
d'emploi que l'on conservera pour toute référence ultérieure.
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M. SCAN +
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INTRO | REPEAT | SHUF
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MUTE SELE LOUD | [a [MANU] 5) | [10e | SEEK | >
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For installation and connection, see the supplied installation/connections
manual.
En ce qui conceme l'installation et les connexions, se reporter au manuel
d’installation/Connexions, fourni.
© 1990 by Sony Corporation
mb bil
For the Customers in the United States
Owner’s Record
The model and serial numbers are located at
the bottom of the unit. Record the serial
number in the space provided below. Refer to
these numbers whenever you call upon your
Sony dealer regarding this product.
Model No. CDX-7520 Serial No.
CAUTION
The use of optical instruments with this
product will increase eye hazard.
INFORMATION
This equipment generates and uses radio
frequency energy and if not installed and used
property, that is, in strict accordance with the
manufacturer's instructions, may cause
interference to radio and television reception. It
has been type tested and found to comply with
the limits for a Class B computing device in
accordance with the specifications in Subpart J
of Part 15 of FCC Rules, which are designed to
provide reasonable protection against such
interference in a residential installation. However,
there is no guarantee that interference will not
occur in a particular installation. H this
equipment does cause interference to radio or
television reception, which can be determined
by tuming the equipment off and on, the user
is encouraged to try to correct the interference
by one or more of the following measures:
Reorient the receiving antenna.
Relocate the equipment with respect to the
receiver.
Move the equipment away from the receiver.
Plug the equipment into a different outisi so
that equipment and receiver are on different
branch circuits.
If necessary, the user should consult the dealer
or an experienced radiofttelevision technician for
additional suggestions. The user may find the
following booklet prepared by the Federal
Communications Commission helpful: “How to
identify and Resolve Radio-TV Interference
Problems”. This booklet is available from the
US. Government Printing Office, Washington,
DC 20402, Stock No. 004-000-00345-4.
Table of Contents
Features ..........11111111101 0111000 3
Precautions ........ ......... ..... . . .. 4
location of controls ........... ...... ... 6
Adjusting a sound ........ ....... 9
Playing a disc ............... 10
Enjoying the variety of CD playing modes .. 12
Memorizing stations automatically ........ 13
Memorizing only desired stations manually . 14
Tuning in automatically ................. 15
Tuning in manually .................... 17
Specifications ............ 18
Fuse replacement ............. aaa 19
Troubleshooting guide ........ ..... ... .. 20
Features
DIN-sized mobile CD player and FM/AM tuner
CD section
* Provided with 8 times over-sampling digital
filter for dynamic sound reproduction
* Quick-recovery mechanism against sound
skipping.
When strong vibration causes sound skipping,
the player quickly relocate the point where the
play was interrupted.
* À 3inch (8 cm) CD can be played without an
adaptor.
Tuner section
* Automatic memory function stores a total of
24 stations (18 FM and 6 AM stations) in
memory.
* Easy and quick tuning with preset buttons
while driving
Others
* Fader control for adjusting the volume of the
front and rear speakers in 4-speaker system
* Line outputs and auxiliary inputs for
connecting an optional power amplifier,
equalizer and a cassette player
* Two color variation (amber or green) for
illumination
Precautions
* Before operating the unit for the first time
or after replacing the battery, press the
reset button (page 6) with a ballpoint
pen, etc., then start operating the unit.
e If your car was parked in direct sunlight and
there was a considerable rise in temperature
inside the car, allow the unit to cool off before
operating.
se If no power is being supplied to the unit,
check the connections first. If everything is in
order, check the fuse.
s If no sound comes from the speakers of a
2-speaker system, set the fader control to the
center position.
* As the laser beam used in this compact disc
player is harmful to the eyes, do not attempt
to disassemble the cabinet. Refer servicing to
qualified personnel only.
Notes on moisture condensation
On a rainy day or in a very damp area,
moisture may condense on the lenses inside
the unit.
Should this occur, the unit will not operate. In
this case, remove the disc and wait for about
an hour until the moisture evaporates.
If you have any question or problem conceming
your unit that is not covered in this manual,
please consult your nearest Sony dealer.
Notes on discs
Handle the disc by its edge, and to keep the
disc clean, do not touch the surface.
This way
Do not stick paper or tape.
Not this way
Do not expose the disc to direct sunlight or
heat sources such as hot air ducts, or leave it
in a car parked in direct sunlight where there
can be a considerable rise in the temperature.
Cleaning discs
Before playing, clean the disc with an optional
cleaning cloth.
Wipe the disc in the direction of the arrows.
Do not use solvents such as benzine, thinner,
commercially available cleaners or antistatic
spray intended for analog discs.
Location of Controls — refer to the pages indicated in e.
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[1] OFF (power off) button @
[2] Reset button 6, O
[3] Display window
[4] SELECT (volume/balance/bass/treble/
fader select) button ©
[5] Disc insertion slot
& (eject) button @
ILL (illumination color change) button
Press to change the color of illumination.
Two colors, green and amber, are available.
MUTE button
Press to momentarily mute the sound.
Press again to restore the same level as
before.
[9] -/+ buttons O
LOUD (loudness) button
Press to reinforce bass and treble especially
when listening at low volume. To disengage
the button, press it again.
[11] SENS button €
(12) M.SCAN (memory scan) button €
A.MEM (automatic memory) @
A. MEM
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Number | During disc play During radio reception
1 vs (skipping to the top) button @
2 —
3 — Preset number buttons @
4 INTRO button @
5 REPEAT button @ |
| 6 | SHUF (shutfie) button @
MANU <</»> (manual search) button @ | MANU +/- (manual tuning) button @
[15]| AMS*re</>>ibutton @ SEEK +/— (automatic tuning) button ©
CD » n (disc play/pause) button @, ©
AM (tuner on/band select) button @
[18] FM (tuner on/band select) button ®
* Automatic Music Sensor
Location of Controls
If your car ignition key does not have the accessory position
—]
The illumination on the front panel is tactory-set to be tumed on
even when not playing the unit. However, this setting may cause
the car battery to run down when the unit is used in the car
which has no accessory position. To avoid this when using the
unit in such a car, sel the selector located on the bottom to
OFF, then press the reset button. You can make the illamination
tumed off when nat playing the unit
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ora
Change the position with a ball-
poini pen or similar objects.
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Adjusting a Sound
Controlling the volume/balance/bass/treble/fader
7 > —/+ button normally functions as
SONY == — - (=) the volume control. Adjust the
° = level within three seconds after
o | . Of eut te | 2e | 30 | FM selecting the desired control
| sens | go | 5e | Go | am mode with the SELECT button.
Otherwise, the mode goes back
= + = SEEK 3 CD ,
AHORA Loup | E ео Е (а) ет / to the volume control mode.
i
-/+ SELECT Display window
| — ‹ —_—
‘ Display | Contro we
| window mode (7) button | (+) button
Each time the SELECT E. с
button is pressed, the 21 NE O
display indication will AH 9 Bass For less bass For more bass
change as tollows.
>| > U
à i L Treble For less treble For more treble
La | : - e To decrease To decrease
#5, | Balance | the right-speaker | the left-speaker
— Ms volume volume
- и п To decrease the | To decrease the
rn Ц | Fader rear-speaker front-speaker
i a volume volume
>|, Mu
y LIL Volume | For less volume For more volume
нотной
Playing a Disc
=== &)
Do | 30 | FM
Bo | Ge | AM
sut
|
1
The disc is loaded ino the unit and
play will stan from the beginning of the disc.
When a disc is already inserted
Track number Elapsed
of the playing time
selection of the selection
| 2 | Adjust the volume.
en)
10
Notes
+ Do not insert a disc with the
label surface down. Doing so
may damage the unit.
* Do nat try to insert another
disc when one has been
already inserted. Doing so
may damage the unit.
At the end of the disc
The track number retums to 1
and play will be repeated from
the beginning of the disc.
Important
Since the CD system offers a
wide dynamic range, the peaks
of the high level inputs are
recorded with high fidelity, and
the noise level is very low. Do
not tum up the volume while
listening to a portion with no
audio signals or very low level
inputs. If you do, the speakers
may be damaged when a peak
level portion is played.
To stop the disc play | Press OFF
| o о To restart playing from the same point,
press » №.
To pause the disc “| Press > m.
play 7. | The display when you press the = №
A button is as follows: a
f Slapsed playing time
A L
NY
Ed бана Blinking
) Track number J
| To restart the play from the same point,
{ press p= №.
+ | Press &
“| Even if you set the ignition key to the off
+4 position, you can remove the disc by
“| pressing 4.
Locating a Particular Selection
Locating a selection in sequence (Automatic Music Sensor)
You can locate the beginning of a desired selection during play.
ection | Press »»1 once.
ocale previous selectons or selecions ahead:
Locating a Particular Point in a Selection
Locating a point in sequence (Manual Search)
You can locate a particular point in a selection during play by
monitoring the high-speed sound.
| Keep »» pressed.
Press | 4% |.
You can quickly locate the beginning of the disc being played.
Note on a 3-inch (8 cm) CD
You can play a 3-inch (8 cm)
CD without an adaptor.
if you press the FM or AM
button during the disc play
The disc play will stop auto-
matically and the radic sound
will be heard.
Note on a 12 cm disc
if you leave the disc putting
into the slot aiter pressing the
æ button, the disc will be
inserted automatically in fifteen
seconds to protect the disc.
if you press the e» a button
within the fifteen seconds, the
disc will bo inserted and the
disc play start from the
beginning of the disc.
Keeping the »» button
pressed
The time counter displays *- -"
when you have passed the end
of the disc. To return to a
normal display, press pee Of
<< button.
11
! CD Operation |
Enjoying the Variety of CD Playing Modes
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INTRO E u SHUF
Playing the First Portions of Selections |
You can play the first ten seconds of
NTR each selection in order.
4° If you find a desired selection, press the
button to cancel the mode. The play
continues.
Playing Repeatedly —Repeat Play
You can repeat a single selection
"Bo. To cancel
Press the button again.
Playing in Random Order —shufñe Play
You can play the selections in
SHUF random order.
6 To cancel
Press the button again.
12
if you press the INTRO button
during the shuffle play, the first
ten seconds of all selections
will be played in random order.
Memorizing the Stations Automatically Memory Function)
> You can memorize a total of 24
SONY | ) stations—6 stations on each band
Co) 0 === = > ===! (=) (FM1, FM2, FM3* or AM), one
o | 1° | 2° | 3° || FM :
| | A 4e 3 on each preset button
Eco Be || aw
sE [fea] 1000 fe) e oka
2 1
nn In what order are stations
1 ыы memorized?
4= 1 The unit scans the band from
FM the lowest frequency to the
Press to select a desired band. highest frequency twice. Al the
first cycle, the unit scans only
The tuner turns on at the same time. the stations with considerably
strong signals. At the next
AM cycle, the minimum level of the
signal strength that can be
tuned will be lowered.
or
* Frequency range of the FM1,
FM2 and FM3 bands is
Press for more than two seconds. same.
M. SCAN The unit starts scanning the selected band
A. MEM and memorizes the tuned stations on the
preset buttons 1 to 6 automatically.
Surveying What is Being Broadcasted on
the Preset Stations
Each memorized station will be scanned for
M. SCAN five seconds in order. (When the broadcast
LA. MEN of the memorized station is too weak, it
Press lightly. cannot be received.)
12
[Radio Reception |
Memorizing Only Desired Stations Manually
SONY [ \ , ‘|
Use this method to memorize
| OFF |
(9) © Бе = — bd stations not memorized by the
"1 1e | 20 | 30 | ru automatic memroy function.
MTRO | REPEAT| SHUF
1 6 q a AM
митЕ |(- >) (+) re AN ar:
— important
| | Press to select a desired band. Each preset bulion has only
RB ‚ one memory for a band. The
у The tuner turns оп а the same time. previously memorized station
will be erased when you enter
a new station of the same
band on the same preset
FM AM number button.
2 | Press to tune in a desired station.
(page 15 or 17).
Com) (|
— Ex. To memorize on the preset button 1
The number of the pressed preset bution
will be displayed and the station will be
memorized.
Receiving the Preset Station
1 Select a desired band.
2 Press a desired preset button lightly.
14
Tuning in Automatically
SONY {
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===
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SENS | 40 Bo ge | an
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MUTE LOUD |[Le |
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Use this method when you do
not know the frequency of
desired stations.
4 | Press to select a desired band.
or
В The tuner turns on at the same time.
Press to start scanning
For lower frequencies
The scanning automatically stops when a
station is tuned in. Repeat this step until a
==
For higher frequencies
desired station is tuned in.
| Press to adjust the volu
ea)
me.
15
Tuning in Automatically
When there are too many stations and the
scanning stops too frequently during
automatic tuning
N
Press sens | so that the LOCAL indicator
appears on the display window.
ВОН ТЕР Aes
я
signals can be tuned in.
When the FM stereo program is too weak
and noisy
Press | SENS so that the MONO indicator
appears on the display window.
The noise will be reduced. The sound will
be monaural instead.
When an FM stereo program of sufficient signal strength is
- tuned in
The STEREO indicator appears and the
program is automatically received in stereo.
16
The SENS button functions
as follows
When receiving an FM station
} Press SENS.
Press SENS again.
Tuning in Manually
``
—1 =]
2° | Ze FM
REPEAT | SHUF
5¢ 6° AM
be Nom Lobo)! de |
— For your safety while driving
“| Press to select a desired band. Keep your eyes on the road
4 | i and use the automatic tuning
The tuner tums on at the same time. or the memory preset tuning!
FM AM
or
Press to select a desired station.
FD] (Goma)
For lower frequencies For higher frequencies
To change the frequency rapidly, keep the
button pressed.
Press to adjust the volume.
en)
Specifications
CD player section
System Compact disc digital audio
system
Frequency responsa 10-— 20,000 Hz +3 dB
SignaHo-noise ratio 90 dB
Wow and flutter Below measurable mit
Laser Diode Properties
Material
GaAlAs
Wavelength
780 nm
Emission Duration
Continuous
Laser out-put Power
Less than 446 .W*
* This output is the value measured
at à distance of 200 mm from the
objective lens surface on the
Optical Pick-up Block.
General
Power requirements 12 V DC car battery (negative
ground)
Current drain 800 mA (CD )
2 A (during disc loading or eject)
Operating temperature
— 10% to 50°C (15% to 120°F)
Dimensions Approx. 180 x 50 x 146 mm (wd)
(7"/a x 2 x 53/4 in.)
Weight Approx. 1.7 kg (3 1202)
Tone controls Bass +10 dB (00 Hz)
Treble +10 dB (10 kHz)
Supplied accessories
Mounting hardware (1 set)
Optional accessories
Mounting kit
Cleaning cloth XP-CD1
Tuner section
FM AM
Tuning range 879-1079 MHz 530 — 1,710 kHz
Antenna terminal FM/AM external antenna connector
intermediate frequency 10.7 MHz 450 kHz
Usable sensitivity | 12 dBf (1.1 ,V/75 ohms) 35 uv
Selectivity 75 dB at +400 kHz —
. ; . 70 dB (monaural)
Signal-to-noise ratio 65 dB (stereo) 55 dB
; 03% (monaural)
Harmonic distortion at 1 kHz 05% (stereo) 03%
Stereo separation 35 dB
Frequency response 30 Hz- 15,000 Hz +3 dB a
Design and specifications subject to change without notice.
18
Fuse Replacement
[ the fuse blows, check the power connection
ind replace the fuse. If the fuse blows again
fter replacement, there may be internal
nalfunction. In this case, consult your nearest
sony dealer.
Naming
Jse the specified ampere fuse only.
Jse of a higher amperage fuse may cause
serious damage.
19
Troubleshooting Guide
The following checks will assist in the correction of most problems
which you may encounter with your unit.
Before going through the check list below, first refer back to the
connection and operating procedures.
О и
CD player section
: LE AC
Play does nat begin.
ii e. O Ra ee TL AAN 5 roche dede APE ES a
* The unit is in the pause mode = Press »
me.
* Dusty or defective disc.
The ambient temperature is more than 50°C (120°F)
Disc cannot be loaded or the disc is
automatically ejected.
* Á disc is already loaded.
* The disc is inserted with the label surface downwards.
The operation buttons do nol work.
The built-in microprocessor malfunctions. =» Press the
reset button.
The sound skips due to vibration
* The unit is instalied at an angle of more than 20°
* The unit is not installed on the sturdy part of a car.
* Dusty or defective disc.
Tuner section
Preset tuning is not possibie.
e The broadcast is weak. =» Use manual tuning.
Automatic tuning is not possible.
The broadcast is weak. = Use manual tuning.
The STEREO indicator flickers.
* Tune in precisely.
* The broadcast is weak. > Press the SENS button to
display the MONO indicator.
About the error code
The following codes flicker for about five seconds.
"ини —
E-04 The disc is dirty or inserted upside-down. (In this case, the | * Clean the disc.
disc will be ejected automatically.) * Insert the disc correctly.
E-66 A CD-ROM disc is inserted. Remove the disc.
been activated.
E-77 The temperature is too high and the protection circuit has; Wait until the unit cools
off.
20