PORTABLE CD PLAYER
Personal Audio Group
Published by Sony Engineering Corporation
Ver 1.4 2005.06
Model Name Using Similar Mechanism
CD Mechanism Type
Optical Pick-up Name
Compact disc digital audio system
Laser diode properties
= 780 nm
Emission duration: Continuous
Laser output: Less than 44.6
(This output is the value measured at a distance
of 200 mm from the objective lens surface on
the optical pick-up block with 7 mm aperture.)
1-bit quartz time-axis control
20 - 20 000 Hz
2 dB (measured by JEITA CP-
Output (at 4.5 V input level)
Headphones (stereo minijack)
Approx.5 mW + Approx. 5 mW at 16
Frequency range (9k/10k switch)
·9 kHz step:
TV: 2 - 13 ch
WB (weather band): 1 - 7 ch
FM: 87.5 - 108.0 MHz
AM: 531 - 1 710 kHz
·10 kHz step:
TV: 2 - 13 ch
WB (weather band): 1 - 7 ch
FM: 87.5 - 108.0 MHz
AM: 530 - 1 710 kHz
FM: Headphones/earphones cord antenna
AM: Built-in ferrite bar antenna
For the area code of the model you
purchased, check the upper left side of the
bar code on the package.
·Two LR6 (size AA) batteries: 1.5 V DC
·AC power adaptor (DC IN 4.5 V jack):
U, U2, CND, E92, MX and TW models:
120 V, 60 Hz
AEP, EE, EE1, E, E13
and E13/2 models: 220 - 230 V, 50/60 Hz
CEK model: 230 V, 50 Hz
AUS model: 240 V, 50 Hz
EU8, EU8/C, JE.W, E18, KR and EE8
models: 100 - 240 V, 50/60 Hz
HK model: 230 V, 50 Hz
Battery life*1 (approx. hours)
(When you use the CD player on a flat and stable
Playing time varies depending on how the CD
player is used.
When using two Sony alkaline batteries
LR6 (SG) (produced in Japan)
*1 Measured value by the standard of JEITA
(Japan Electronics and Information Technology
*2 When recorded at 48 kbps or 64 kbps
*3 When recorded at 128 kbps
°C - 35°C (41°F - 95°F)
Dimensions (w/h/d) (excluding
projecting parts and controls)
× 25.4 ×156.3 mm
× 1 × 6 1/4 in.)
Mass (excluding accessories)
Approx. 215 g (7.6 oz.)
Design and specifications are subject to change
Photo : D-NF610
AUS: Australian model
CND : Canadian model
: 220-230 V AC area in E model
: 120 V AC area in E model
: East European model
: Hong Kong model
: Korean model
: Mexican model
: Taiwan model
Flexible Circuit Board Repairing
·Keep the temperature of the soldering iron around 270 °C dur-
· 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
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.
This appliance is classified as a CLASS 1 LASER product.
The CLASS 1 LASER PRODUCT MARKING is located on
the rear exterior.
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous
Disconnect all power sources when the CD player is not used for a long time.
On AC power adaptor
· Use only the AC power adaptor supplied.
If your CD player is not supplied with the one, use the AC-E45HG AC
power adaptor. Do not use any other AC power adaptor. It may cause a
Polarity of the plug
· Do not touch the AC power adaptor with wet hands.
· Connect the AC power adaptor to an easily accessible AC outlet. Should
you notice an abnormality in the AC power adaptor, disconnect it from
the AC outlet immediately.
Notes on the power source
TABLE OF CONTENTS
1. SERVICING NOTE ·························································· 3
2. GENERAL ·········································································· 4
3. DISASSEMBLY ································································ 5
4. ELECTRICAL ADJUSTMENT ···································· 8
5. DIAGRAMS ······································································ 10
5-1. Block Diagram
MAIN Section ······················································· 11
TUNER Section ····················································· 12
5-2. Printed Wiring Board
MAIN Board (Side A)(1/2) ··································· 13
5-3. Printed Wiring Board
MAIN Board (Side A)(2/2) ··································· 14
5-4. Printed Wiring Board MAIN Board (Side B)(1/2) 15
5-5. Printed Wiring Board MAIN Board (Side B)(2/2) 16
5-6. Schematic Diagram MAIN Board (1/5) ··············· 17
5-7. Schematic Diagram MAIN Board (2/5) ··············· 18
5-8. Schematic Diagram MAIN Board (3/5) ··············· 19
5-9. Schematic Diagram MAIN Board (4/5) ··············· 20
5-10. Schematic Diagram MAIN Board (5/5) ··············· 21
5-11. IC Block Diagram ······················································· 22
5-12. IC Pin Function Descriptions ······································ 27
6. EXPLODED VIEWS ······················································ 32
7. ELECTRICAL PARTS LIST ······································· 35
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size.)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
· Unleaded solder melts at a temperature about 40
°C higher than
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
Caution: The printed pattern (copper foil) may peel away if the
heated tip is applied for too long, so be careful!
· Strong viscosity
Unleaded solder is more viscous (sticky, less prone to flow) than
ordinary solder so use caution not to let solder bridges occur such
as on IC pins, etc.
· Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
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
PUBLISHED BY SONY.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFÉS PAR UNE MARQUE 0 SUR LES
DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT
CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE
REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY
DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPÉMENTS PUBLIÉS PAR SONY.
The laser diode in the optical pick-up block may suffer electrostatic
breakdown because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic breakdown and also use
the procedure in the printed matter which is included in the repair
The flexible board is easily damaged and should be handled with
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 emission,
observe from more than 30 cm away from the objective lens.
BEFORE REPLACING THE OPTICAL PICK-UP BLOCK
Please be sure to check thoroughly the parameters as par the "Optical
Pick-Up Block Checking Procedures" (Part No.: 9-960-027-11)
issued separately before replacing the optical pick-up block.
Note and specifications required to check are given below.
· FOK output: IC601 yg pin
When checking FOK, remove the lead wire to disc motor.
· RF signal P-to-P value: 0.4 to 0.6 Vp-p
LASER DIODE AND FOCUS SEARCH OPERATION
During normal operation of the equipment, emission of the laser
diode is prohibited unless the upper lid is closed while turning ON
the S801. (push switch type)
The following checking method for the laser diode is operable.
Emission of the laser diode is visually checked.
1. Open the upper lid.
2. With a disc not set, turn on the S820 with a screwdriver having a
thin tip as shown in Fig.1.
3. Press the > B button.
4. Observing the objective lens, check that the laser diode emits
When the laser diode does not emit light, automatic power control
circuit or optical pickup is faulty.
In this operation, the objective lens will move up and down 4
times along with inward motion for the focus search.
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
Fig. 1 Method to push the S820
This section is extracted
from instruction manual.
CD player (front)
1 i (headphones)
(pages 11, 29)
6 DISPLAY button
(pages 23, 26, 27)
8 HOLD switch
3 OPEN button
qh JOG DIAL/
ENTER (pages 16, 20)
qs DC IN 4.5 V
qf u* (play/pause) button
(pages 11, 12, 16, 18, 19)
qd x (stop)·RADIO OFF
(pages 12, 21, 24, 28)
qg ./> (AMS/search)·
PRESET /+ buttons
(pages 12, 16, 19, 24, 25)
4 TUNE +/·
(pages 12, 21)
2 VOL (volume)
5 P MODE/
(pages 16 - 19, 22)
q; SOUND button
(pages 27, 28)
(pages 13, 16, 19 - 24, 26 - 28)
qa Strap holes
*The button has a tactile dot.
7 RADIO ON·BAND/
(pages 21 - 25)
CD player (inside)
ql Battery compartment
switch (page 26)
qk 9k/10k switch (page 25)
Exept European model .
LID (UPPER) ASSY
CABINET (FRONT) ASSY
CD MECHANISM (CDM-3325ER2)
TURN TABLE MOTOR ASSY
MOTOR ASSY (SLED) (M902),
OPTICAL PICK-UP (DAX-25E)
Disassemble the unit in the order as shown below.
Follow the disassembly procedure in the numerical order given.
3-1. Lid (Upper) Assy
lid (upper) assy
Remove the open spring (L) in
the direction of the arrow.
Remove the open spring (R) in
the direction of the arrow.