Sony d fj 737 service manual

Page 1

D-FJ737

SERVICE MANUAL EMode/

Chinese Model
Ver 1.0 2001.09

Model Name Using Similar Mechanism D-EJ725
CD Mechanism Type CDM-3123EBA
Optical Pick-up Type DAX-23E

SPECIFICATIONS

System Frequency range (tuner-remotecontrol)

Compact disc digital audio system FM: 37.5 - 103.0 MHZ
AM: 531 - l 602 kHz

Laser diode properties

Material: GaAlAs Power requirements

Wavelength: )t = 780 nm For the area code of the model you
Emission duration: Continuous purchased, check the upper left side of the
Laser output: Less than 44.6 pW bar code on the package.

(This output is the value measured at a CD player:

distance of 200 mm from the objective ' Two Sony NC-WMAA rechargeable
lens surface on the optical pick-up block batteries: 2.4 V DC

Sony NH-WMZAA rechargeable batteries:
2.4 V DC

Two LRfi (size AA) batteries: 3 V DC
AC power adaptor (DC IN 4.5 V jack):

with 7 mm aperture.)

D-A conversion
l-bit quartz time-axis Control

E13 model:
Frequency response 220 - 230 V, 50/60 Hz
20 - 20 000 Hz 3 dB (measured by IEITA CP-307) Korean model: 100 - 240 V, 50/60 Hz
Hong Kong model: 220 V, 50/60 Hz
Output (at 4.5 V input level) Chinese model: 220 V, 50 Hz
Line output (stereo minijack) Tuner-remote control (when used separately):

Output level 0.7 V ms at 47 M2 One R03 (size AAA) battery: 15 V DC

Recommended load impedance over 10 k9
Headphones (stereo mirtijack)
Approx. 5 mW + Approx. 5 mW at 16 0
Optical digital output (optical output
connector)
Output level: -21 - -15 dBm

Wavelength: 630 - 690 nm at peak level _ Continued on page 2 _

9-873-293-01 Sony Corporation
2001i0200-1 Personal Audio Company
© 2001.9 Shinagawa Tec Service Manual Production Group ®

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D-FJ737

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 function

on otf
Two N C-WMAA 8 10
(charged for
about 3 hours**)
NH-WMZAA 20 22
(charged for
about 5 hours**)
Two Sony alkaline 35 38
batteries LR6(SG)
Four Sony alkaline 82 86
batteries LR6(SG)
Two rechargeable 44 50
batteries NC-WMAA and
two Sony alkaline
batteries LR6(SG)
Rechargeable batteries 54 64
NH-WMZAA and
two Sony alkaline
batteries LR6(SG)

Tuner-remote control

Sony alkaline 25
battery LR03 (56)

Sony manganese 10
battery R03 (SB)

* Measured value by the standard of JEITA (Japan
Electronics and Information Technology
Industries Association).

** 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 proiecting parts and controls)
CD player:

Approx. 131.6 x 25.5 x 140.9 mm

Tuner-remote control:

Approx 53 x 60 x 22.5 mm

MESS

CD player (excluding rechargeable batteries):
Approx. 193 g

Tuner-remote control (excluding a battery):
Approx 30 g

Design and specifications are subject to change without notice.

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/earphones with tuner-remote
control ( 1)
Remote control cord (1)
Strap for the tuner-remote control (1)
Rechargeable batteries (2)
Battery carrying case (1)
Carrying pouch (1)
External battery Case (1)

- Abbreviation
HK : Hong Kong
CH : Chinese
KR : Korean

2

TABLE OF CONTENTS

Specifications ............................................................................ 1

1.

2.

SERVICING NOTES ................................................... 3

GENERAL
Locating the Controls ......................................................... 4

DISASSEMBLY
3-11 Cabinet (Rear), Cabinet (Front) .................................. 6
3-21 MD ASSY, Main board iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
3-31 Motor ASSY, Tum Table (Spindle) (M901)
3-41 Motor ASSY (Sled) (M902),

Optical Pick-up (BAX-23E) 1
3-51 Lid, Upper, Switch Unit ..

ELECTRICAL ADJUSTMENTS ............................. 8

DIAG RAMS

5-11 Explanation of IC Terminals
5-21 Block Diagram

5-31 Printed Wiring Boards 4 Main Section (Side A) ~
5-41 Printed Wiring Boards 4 Main Section (Side B) A
5-51 Schematic Diagram 4 Main Section (1/2) -
5-61 Schematic Diagram 4 Main Section (2/2) -

EXPLODED VIEWS
6-11 Cabinet Section ......................................................... 18
6-21 Optical pick-up Section (CDM-3123EBA)
6-31 Tuner Control Section .............................

ELECTRICAL PARTS LIST ................................... 21

DANG E R
Invisible laser radiation when open and interlock failed or defeated
Avoid direct exposure to beami

CAUTION

Use of controls or adjustments or performance of procedures other
than those specified herein may result in hazardous radiation
exposure

Flexible Circuit Board Repairing

0 Keep the temperature of the soldering iron around 270°C during
repairing.

0 Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).

0 Be careful not to apply force on the conductor when soldering or
unsoldering.

Notes on chip component replacement

0 Never reuse a disconnected chip component.

0 Notice that the minus side of a tantalum capacitor may be darn-
aged by heat

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY MARK A OR DOTTED LINE
WITH MARK A ON THE SCHEMATIC DIAGRAMS AND IN THE
PARTS LIST ARE CRITICALTO SAFE OPERATION.

REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN
SUPPLEMENTS PUBLISHED BY SONY.