D-FS18
US Model
Canadian Model
SERVICE MANUAL
FM/AM PORTABLE CD PLAYER
Sony Corporation
Personal Audio Group
Published by Sony Engineering Corporation
9-873-122-12
2005G16-1
© 2005.07
Model Name Using Similar Mechanism
D-E770/EJ711/EJ715
CD Mechanism Type
CDM-3123EBA
Optical Pick-up Type
DAX-23E
-- Continued on next page --
SPECIFICATIONS
Ver. 1.1 2005.07
CD player
System
Compact disc digital audio system
Laser diode properties
Material: GaAlAs
Wavelength:
= 780 nm
Emission duration: Continuous
Laser output: Less than 44.6
µW
(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.)
D-A conversion
1-bit quartz time-axis control
Frequency response
40 - 20 000 Hz
+1
4 dB (measured by EIAJ CP-
307)
Output (at 4.5 V input level)
Headphones (stereo minijack)
Approx. 5 mW + Approx. 5 mW at 16
Radio
Frequency range (STEP switch)
9 kHz step:
FM: 87.5 - 108.0 MHz
AM: 531 - 1 710 kHz
10 kHz step:
FM: 87.5 - 108.0 MHz
AM: 530 - 1 710 kHz
Antenna
FM: Headphones cord antenna
AM: Built-in ferrite bar antenna
General
Power requirements
For the area code of the model you
purchased, check the upper left side of the
bar code on the package.
· Sony NH-WM2AA rechargeable batteries:
2.4 V DC
·Two LR6 (size AA) batteries: 3 V DC
·AC power adaptor (DC IN 4.5 V jack):
U2/U/CA2/E92/MX2/TW2/BR3 model:
120 V, 60 Hz
CED/CET/CEW/CEX/CE7/EE/EE1/E13/G5/
G6/G7/G8/BR1 model:
220 - 230 V, 50/60 Hz
CEK/3CE7 model: 230 - 240 V, 50 Hz
AU2 model: 240 V, 50 Hz
JE.W/E33/EA3 model: 100 - 240 V, 50/60 Hz
HK2 model: 220 V, 50/60 Hz
AR1/CNA model: 220 V, 50 Hz
· Sony DCC-E345 car battery cord for use on
car battery: 4.5 V DC
Battery life* (approx. hours)
(When you use the CD player on a flat and stable
surface.)
Playing time varies depending on how the CD
player is used.
When using
G-PROTECTION
Radio
on
off
on
NH-WM2AA
18
21
38
(charged for
about 5 hours**)
Two Sony alkaline 31
35
66
batteries LR6(SG)
*Measured value by the standard of EIAJ
(Electronic Industries Association of Japan).
** Charging time varies depending on how the
rechargeable battery is used.
Operating temperature
5
°C - 35°C (41°F - 95°F)
Dimensions (w/h/d) (excluding
projecting parts and controls)
Approx. 146
× 38 × 136 mm
(5 3/4
× 1 1/2 × 5 3/8 in.)
Mass (excluding accessories)
Approx. 363 g (12.9 oz.)
2
D-FS18
1. SERVICING NOTES ······················································· 3
2. GENERAL ·································································· 4
3. DISASSEMBLY
3-1. Cabinet (Lower) Sub ASSY,
Cabinet (Inner) Sub Assy, Main Board ································ 5
3-2. MD ASSY ············································································ 5
3-3. Motor ASSY, Turn Table (Spindle) (M902) ························ 6
3-4. Optical Pick-up (DAX-23E),
Motor Assy (Sled) (M901) ··········································· 6
3-5. "Lid, Upper", Switch Unit ··················································· 7
4. ELECTRICAL ADJUSTMENS ···································· 8
5. DIAGRAMS
5-1. BLOCK DIAGRAM CD SECTION ······························· 10
TUNER SECTION ···························································· 11
5-2. PRINTED WIRING BOARD
MAIN (SIDE A) SECTION ········································· 12
5-3. PRINTED WIRING BOARD
MAIN (SIDE B) SECTION ········································· 13
5-4. SCHEMATIC DIAGRAM TUNER SECTION ·············· 14
5-5. SCHEMATIC DIAGRAM CD SECTION (1/4) ············· 15
5-6. SCHEMATIC DIAGRAM CD SECTION (2/4) ············· 16
5-7. SCHEMATIC DIAGRAM CD SECTION (3/4) ············· 17
5-8. SCHEMATIC DIAGRAM CD SECTION (4/4) ············· 18
5-9. IC PIN FUNCTION DESCRIOTION ······························· 19
5-10. IC BLOCK DIAGRAMS ·················································· 23
6. EXPLODED VIEWS
6-1. CABINET SECTION ························································ 26
6-2. MECHANISM SECTION (CDM-3123EBA) ··················· 27
7. ELECTRICAL PARTS LIST ········································· 28
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 COMPOSANTS 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 PUBLISHED BY SONY.
Flexible Circuit Board Repairing
· Keep the temperature of the soldering iron around 270
°C during
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.
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.
TABLE OF CONTENTS
CAUTION
Use of controls or adjustments or performance of procedures other
than those specified herein may result in hazardous radiation
exposure.
DANGER
Invisible laser radiation when open and interlock failed or defeated.
Avoid direct exposure to beam.
Supplied accessories
For the area code of the location in which you
purchased the CD player, check the upper left side
of the bar code on the package.
AC power adaptor (1)
Headphones (1)
Hand strap (1)
For US customers
The AC power adaptor supplied is not intended to
be serviced. Should the AC power adaptor cease to
function in its intended manner, during the warranty
period, the adaptor should be returned to your
nearest Sony Service Center or Sony Authorized
Repair Center for replacement, or after warranty
period, it should be discarded.
Optional accessories
AC power adaptor
AC-E45HG
Active speaker system
SRS-Z500
SRS-T1
Car battery cord
DCC-E345
Car battery cord with car connecting pack
DCC-E34CP
Car connecting pack
CPA-9C
Connecting cord
RK-G129
RK-G136
Rechargeable battery
NH-WM2AA
Earphones
MDR-E848LP
MDR-EX70LP
Headphones
MDR-A44L
MDR-A110LP
Your dealer may not handle some of the
above listed accessories. Please ask the
dealer for detailed information about the
accessories in your country.
3
D-FS18
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 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 emission, observe from more than 30cm away
from the objective lens.
Before Replacing the Optical pick-up Block
Please be sure to check thoroughly the parameters as per the "Optical pick-
up Block Checking Procedure" (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 eg pin
When checking FOK, remove the lead wire to disc motor.
· RF signal P-to-P value : 0.4 to 0.5Vp-p
SECTION 1
SERVICING NOTES
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR
BASE UNIT
Fig.1 Method to push S801
MAIN board
S801
Precautions for Checking Emission of Laser Diode
Laser light of the equipment is focused by the object lens in the optical
pick-up so that the light focuses on the reflection surface of the disc.
Therefore, be sure to keep your eyes more then 30 cm apart from the object
lens when you check the emission of laser diode.
Laser Diode Checking Methods
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 two checking methods for the laser diode are oper-able.
· Method:
Emission of the laser diode is visually checked.
1. Open the upper lid.
2. With a disc not set, turn on the S801 with a screwdriver having a thin tip
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. Observing the objective lens, check that the laser diode emits light.
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 5 times along
with inward motion for the focus search.
4
D-FS18
SECTION 2
GENERAL
This section is extracted from
instruction manual.
CD player (front)
6 i (headphones)
jack
qf Display
5 VOL(volume)
control
qs HOLD switch
2 PLAY MODE·
TUNING + button
1 SOUND button
3 REPEAT/ENTER·
TUNING button
qd DC IN 4.5 V
(external power
input) jack
9
u (play/pause)
button
7 Buckle
4 RADIO ON·BAND
button
8 1-5buttons
q;
x (stop)/CHG (charge)·
RADIO OFF button
qa
./>
(AMS/search) ·
PRESET /+
buttons
5
D-FS18
SECTION 3
DISASSEMBLY
Note : Follow the disassembly procedure in the numerical order given.
z
The equipment can be removed using the following procedure.
1
Screw, step
2
Screw, tapping
8
Flexible board (CN801)
Lid, Upper
6
9
7
Claws
5
Five screws (B2)
Cabinet (Inner) sub assy
MAIN board
2
Screw, tapping
3
Screw, (B2)
4
Switching arm assy
MD ASSY
Main board
3
Optical pick-up flexible board
CN502 (Green)
2
CN503 (White)
1
4
3-1. CABINET (LOWER) SUB ASSY, CABINET (INNER) SUB ASSY, MAIN BOARD
3-2. MD ASSY
"Lid, Upper", Switch unit
Cabinet (lower) sub ASSY, Cabinet (inner) sub ASSY, Main board
MD ASSY
Motor ASSY, Turn table (Spindle) (M902),
Optical pick-up (DAX-23E), Motor ASSY (Sled) (M901)
Cabinet (front)
Set