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SERVICE MANUAL
(US model only)
POWER OUTPUT AND TOTAL HARMONIC
DISTORTION
With 3.2-ohm loads, both channels driven from
150 - 10,000 Hz; rated 1.8 W per channel-
minimum RMS power, with no more than 10 %
total harmonic distortion in AC operation.
Other Specifications
CD player section
System
Compact disc digital audio system
Laser diode properties
Material: GaAlAs
Wave length: 780 nm
Emission duration: Continuous
Laser output: Less than 44.6
µW
(This output is the value measured at a distance of about
200 mm from the objective lens surface on the optical
pick-up block with 7 mm aperture.)
Spindle speed
200 r/min (rpm) to 500 r/min (rpm) (CLV)
Number of channels
2
Frequency response
20 - 20 000 Hz +1/­2 dB
Wow and flutter
Below measurable limit
Radio section
Frequency range
FM: 87.5 - 108 MHz
AM: 530 - 1 710 kHz (US, Canadian models)
Antennas
FM: Telescopic antenna
AM: Built-in ferrite bar antenna
Battery life
For CD playback:
Sony R20P: approx. 7.5 h
Sony alkaline LR20: approx. 14 h
Dimensions
Approx. 430
× 172 × 287.5 mm (w/h/d)
(17
× 6 7/8 × 11 3/8 inches) (incl. projecting parts)
Mass
Approx. 4.6 kg (7 lb. 11 oz) (incl. batteries)
Supplied accessories
AC power adaptor (1)
Design and specifications are subject to change without
notice.
AUDIO POWER SPECIFICATIONS
General
Speaker
Full range: 10 cm (4 in.) dia.,
3.2
, cone type (2)
Outputs
Headphones jack (stereo minijack)
For 16 - 68
impedance headphones
Power output
2.3 W + 2.3 W (at 3.2
, 10 % harmonic
distortion)
Power requirements
DC IN 9V jack accepts:
Supplied AC power adaptor for use with 120 V AC,
60 Hz (US, Canadian models)
9 V DC, 6 size D (R20) batteries
MW:531 - 1 611 kHz (9 kHz step) (Except US, Canadian models)
530 - 1 610 kHz (10 kHz step) (Except US, Canadian models)
LW: 153 - 279 kHz (Except US, Canadian models)
IF
FM: 10.7 MHz (Except US, Canadian models)
MW/LW: 450 kHz (Except US, Canadian models)
Supplied AC power adaptor for use with 230 V AC,
50 Hz (Except US, Canadian models)
PERSONAL AUDIO SYSTEM
US Model
Canadian Model
AEP Model
UK Model
SPECIFICATIONS
ZS-X3CP
Ver 1.2 2002.10
9-873-537-03
Sony Corporation
2002J0500-1
Personal Audio Company
C
2002.10
Published by Sony Engineering Corporation
Model Name Using Similar Mechanism
NEW
CD Mechanism Type
KSM-900AAA
Optical Pick-up Name
KSS-900A


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ZS-X3CP
TABLE OF CONTENTS
1.
SERVICING NOTES ..............................................
4
2.
GENERAL ..................................................................
5
3.
DISASSEMBLY
3-1. Disassembly Flow ...........................................................
7
3-2. Cabinet Lower, Telescopic Antenna (ANT1) .................
8
3-3. Main Chassis Section ......................................................
9
3-4. AUDIO Board, BATTERY Board ..................................
9
3-5. TUNER Board, CONTROL Board ................................. 10
3-6. CDMP3 Board ................................................................. 11
3-7. Optical Pick-up Section .................................................. 11
3-8. Sled Motor Assy (780CP) (M702) .................................. 12
3-9. Optical Pick-up (KSS-900A) .......................................... 12
3-10. Cabinet Front Section ..................................................... 13
3-11. Speaker (10cm) (L) (SP1), Speaker (10cm) (R) (SP2) .. 13
3-12. Lid CD ............................................................................. 14
4.
ELECTRICAL ADJUSTMENTS
Tuner Section ................................................................. 15
CD Section ..................................................................... 17
5.
DIAGRAMS
5-1. Block Diagram ­ CD Section ­ .................................... 18
5-2. Block Diagram ­ TUNER Section ­ ............................ 19
5-3. Block Diagram ­ MAIN Section ­ ............................... 20
5-4. Note for Printed Wiring Boards and
Schematic Diagrams ....................................................... 21
5-5. Printed Wiring Boards ­ CD Section ­ ........................ 23
5-6. Schematic Diagram ­ CD Section (1/2) ­ .................... 24
5-7. Schematic Diagram ­ CD Section (2/2) ­ .................... 25
5-8. Printed Wiring Board
­ TUNER Section (US, Canadian Models) ­ ................ 26
5-9. Schematic Diagram
­ TUNER Section (US, Canadian Models) ­ ................ 27
5-10. Printed Wiring Board
­ TUNER Section (Except US, Canadian Models) ­ ... 28
5-11. Schematic Diagram
­ TUNER Section (Except US, Canadian Models) ­ ... 29
5-12. Printed Wiring Boards ­ CONTROL Section ­ ........... 30
5-13. Schematic Diagram ­ CONTROL Section ­ ................ 31
5-14. Printed Wiring Boards
­ AUDIO/POWER Section ­ ......................................... 32
5-15. Schematic Diagram ­ AUDIO/POWER Section ­ ....... 33
5-16. IC Pin Function Description .......................................... 35
6.
EXPLODED VIEWS
6-1. Cabinet Lower Section .................................................... 39
6-2. Cabinet Front Section ..................................................... 40
6-3. Cabinet Upper Section-1 ................................................. 41
6-4. Cabinet Upper Section-2 ................................................. 42
6-5. Cabinet Upper Section-3 ................................................. 43
6-6. Main Chassis Section ...................................................... 44
6-7. Optical Pick-up Section (KSM-900AAA) ..................... 45
7.
ELECTRICAL PARTS LIST .............................. 46
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous ra-
diation exposure.
Ver 1.1
This Compact Disc player is classified as a
CLASS 1 LASER product.
The CLASS 1 LASER PRODUCT label is located
at the bottom.


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ZS-X3CP
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE 0
SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE
DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ
DE FONCTIONNEMENT. NE REMPLACER CES COM-
POSANTS QUE PAR DES PIÈCES SONY DONT LES
NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED
LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS
AND IN THE PARTS LIST ARE CRITICAL TO SAFE
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY.
Notes on chip component replacement
·Never reuse a disconnected chip component.
· Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
Flexible Circuit Board Repairing
·Keep the temperature of the soldering iron around 270 °C dur-
ing repairing.
· Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
· Be careful not to apply force on the conductor when soldering
or unsoldering.
SAFETY CHECK-OUT
After correcting the original service problem, perform the follow-
ing safety check before releasing the set to the customer:
Check the antenna terminals, metal trim, "metallized" knobs,
screws, and all other exposed metal parts for AC leakage.
Check leakage as described below.
LEAKAGE TEST
The AC leakage from any exposed metal part to earth ground and
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microamperes).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers' instructions to use these
instruments.
2. A battery-operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of a
VOM or battery-operated AC voltmeter. The "limit" indica-
tion is 0.75 V, so analog meters must have an accurate low-
voltage scale. The Simpson 250 and Sanwa SH-63Trd are ex-
amples of a passive VOM that is suitable. Nearly all battery
operated digital multimeters that have a 2 V AC range are suit-
able. (See Fig. A)
Fig. A.
Using an AC voltmeter to check AC leakage.
1.5 k
0.15 µF
AC
voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Earth Ground
About CD-Rs/CD-RWs and MP3 files
This player can play CD-Rs/CD-RWs recorded in the CD-
DA format* and MP3 files recorded in the CD-ROM
format, but playback capability may vary depending on the
quality of the disc and the condition of the recording
device.
* CD-DA is the abbreviation for Compact Disc Digital Audio. It is
a recording standard used for Audio CDs.


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ZS-X3CP
SECTION 1
SERVICING NOTES
The laser diode in the optical pick-up block may suffer electro-
static break-down because of the potential difference generated
by the charged electrostatic load, etc. on clothing and the human
body.
During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
repair parts.
The flexible board is easily damaged and should be handled with
care.
NOTES ON LASER DIODE EMISSION CHECK
The laser beam on this model is concentrated so as to be focused
on the disc reflective surface by the objective lens in the optical
pick-up block. Therefore, when checking the laser diode emis-
sion, observe from more than 30 cm away from the objective lens.
LASER DIODE AND FOCUS SEARCH OPERATION
CHECK
During normal operation of the equipment, emission of the laser
diode is prohibited unless the upper lid is closed while turning ON
the S701. (push switch type)
The following checking method for the laser diode is operable.
· Method
Emission of the laser diode is visually checked.
1. Open the upper lid.
2. Push the S701 as shown in Fig.1.
Note: Do not push the detection lever strongly, or it may be bent or dam-
aged.
3. Press the u button.
4. Check the object lens for confirming normal emission of the
laser diode. If not emitting, there is a trouble in the automatic
power control circuit or the optical pick-up.
In this operation, the object lens will move up and down 2
times along with inward motion for the focus search.
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
S701
Fig.1 Method to push the S701


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5
ZS-X3CP
SECTION 2
GENERAL
4
Playing an audio CD or MP3 files
Connect the supplied AC power adaptor (see page 18).
1
Press POWER (US, Canadian models) or OPERATE
to turn on the player.
2
Press Z PUSH down to open the CD
compartment and place the CD on
the CD compartment until it clicks
into place.
3
Close the lid of the CD compartment.
With the label side up
1
4
2, 3
Basic Operations
(Except US, Canadian models)
Basic
Operations
5
Display
Playing
time
Track
number
To
Do this
adjust the volume
Press VOLUME +*, ­.
stop playback
Press x.
pause playback
Press u*.
Press the button again to
resume play after pause.
go to the next track
Push jog lever toward >.
go back to the previous track
Push jog lever toward ..
remove the CD**
Press Z PUSH.
turn on/off the player
Press POWER.
* The button has a tactile dot.
**Once you open the CD compartment, the track to start play will
change to the beginning of the first track.
Tip
Playback starts from the
track you last stopped
playing (Resume play).
During stop, the track
number to be played are
displayed.
To cancel the resume play
to start play from the
beginning of the first track,
press x in stop mode.
u
POWER (US, Canadian models)
OPERATE
(Except US, Canadian models)
VOLUME +, ­
x
Z PUSH
continued
4
Press u.
The player plays all the tracks once.
To play a CD with MP3 files, see
page 6.
Jog lever
Use these buttons for additional operations
(US, Canadian models)
Press OPERATE.
(Except US, Canadian models)
6
Note
Before playing a file, this
player reads all file and
folder information on the
CD. Depending on the
file structure, it may take
more than a minute to
read them. During this
time, "Reading" is
displayed.
Tip
You can use the buttons
mentioned in the table on
page 5 for additional
operations in the same
way as when playing an
audio CD.
Playing a CD with MP3 files
1 Press POWER (US, Canadian models) or ORERATE
to turn on the player.
2 Press Z PUSH to open the CD compartment and place
the CD on the CD compartment (see page 4) .
3 Close the lid of the CD compartment.
4 Press u.
The player plays all MP3 files on the CD.
When you play a CD with MP3 files, the MP3
indicator lights up.
To select a folder
Push the jog lever toward FLDR + to go forward and
FLDR ­ to go backward.
To select a file
Push the jog lever toward > to go forward and . to
go backward.
Track number
Folder name
u
Jog lever
MP3 indicator
POWER (US, Canadian models)
OPERATE
(Except US, Canadian models)
File name
Playing time
Z PUSH
Playing an audio CD or MP3 files (continued)
(Except US, Canadian models)
Basic
Operations
7
CD-R
CD-RW
3
2
1
2
4
5
3
6
7
8
4
9
5
0
6
1
Example of folder structure and playing
order
The playing order of the folders and files is as follows:
MP3 file
Notes
¥ A folder that does not
include an MP3 file is
skipped.
¥ Maximum number of
folders: 255
Maximum number of files:
255
¥ Folder names and file
names can be displayed
with up to 64 characters.
¥ The characters A - Z, a - z,
0 - 9, and _ can be
displayed on this player.
Other characters are
displayed as * .
¥ This player conforms to
Version 1.1 of the ID3 tag
format. If the file has the
ID3 tag information, song
title , artist name and
album name can be
displayed.
Folder
Ver 1.1
This section is extracted from
instruction manual.