SONY DNS707F - Service Manual Immediate Download

SERVICE MANUAL

Sony Corporation

Personal Audio Company

Published by Sony Engineering Corporation

US Model

Canadian Model

PORTABLE CD PLAYER

9-877-798-01

2004D1679-1

Ver 1.0 2004.04

SPECIFICATIONS

D-NS707F

Manufactured under license from Dolby

Laboratories Licensing Corporation.

CD player

System

Compact disc digital audio system

Laser diode properties

Material: GaAlAs

Wavelength:

= 770 - 800 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

20 - 20 000 Hz +1

2 dB (measured by JEITA)

Output (at 4.5 V input level)

Headphones (stereo minijack)

Approx. 5 mW + Approx. 5 mW at 16

Operating temperature

°C - 35°C (41°F - 95°F)

Dimensions (w/h/d) (excluding projecting parts

and controls)

Approx. 136

30.5 136 mm (53/

11/

53/

8 in.)

Mass (excluding accessories)

Approx. 276 g (9.8 oz.)

Radio

Frequency range

· 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

Antenna

FM: Headphones/earphones cord antenna

AM: Built-in ferrite bar antenna

General

Power requirements

· LR6 (size AA) batteries: 1.5 V DC

· AC power adaptor (DC IN 4.5 V jack):

120 V, 60 Hz

Supplied accessories

Design and specifications are subject to change

without notice.

Headphones

CD-ROM (SonicStage)

Operating Instructions

SonicStage Installation/Operating Guide

Model Name Using Similar Mechanism

D-NE10

CD Mechanism Type

CDM-3325ERV2

Optical Pick-up Name

DAX-25EV

D-NS707F

TABLE OF CONTENTS

SERVICE POSITION .......................................... 3

GENERAL ............................................................ 5

DISASSEMBLY

3-1.

Upper (Lid) Section .........................................................

3-2.

Cabinet (Middle) Section ................................................

3-3.

MAIN PWB Assy ............................................................

3-4.

MAIN Board, CD Mechanism Deck

(CDM-3325ERV2) ..........................................................

3-5.

Turn Table Motor Assy (M901), Sled Motor Assy (M902),

Optical Pick-up (DAX-25EV) .........................................

ELECTRICAL CHECKING ................................ 9

DIAGRAMS

5-1.

Block Diagram MAIN Section (1/2) ......................... 12

Block Diagram MAIN Section (2/2) ......................... 13

Block Diagram TUNER Section ............................... 14

Block Diagram POWER Section ............................... 15

5-2.

Printed Wiring Board MAIN Board (Side A) ............ 16

5-3.

Printed Wiring Board MAIN Board (Side B) ............ 17

5-4.

Schematic Diagrams MAIN Board (1/5) ................... 18

5-5.

Schematic Diagrams MAIN Board (2/5) ................... 19

5-6.

Schematic Diagrams MAIN Board (3/5) ................... 20

5-7.

Schematic Diagrams MAIN Board (4/5) ................... 21

5-8.

Schematic Diagrams MAIN Board (5/5) ................... 22

5-9.

IC Pin Function Descriptions .......................................... 27

EXPLODED VIEWS

6-1.

Cabinet Upper .................................................................. 34

6-2.

Cabinet Lower ................................................................. 35

6-3.

Strap Front ....................................................................... 36

6-4.

MAIN PWB Assy ............................................................ 37

6-5.

CD Mechanism Deck Section (CDM-3325ERV2) .......... 38

ELECTRICAL PARTS LIST ............................... 39

Unleaded solder

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 solder.

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

about 350

°C.

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.

This appliance is classified as a CLASS 1 LASER product. The

CLASS 1 LASER PRODUCT MARKING is located on the rear

exterior.

Flexible Circuit Board Repairing

·Keep the temperature of 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

damaged by heat.

CAUTION

Use of controls or adjustments or performance of procedures

other than those specified herein may result in hazardous radiation

exposure.

On AC power adaptor

·Use only the AC power adaptor supplied or

recommended in "Accessories (supplied/

optional)." Do not use any other AC power

adaptor. It may cause a malfunction.

Polarity of the plug

D-NS707F

SECTION 1

SERVICING NOTE

Fig. 1 Method to push the S820

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 S820.

The following checking method for the laser diode is operable.

· Method:

Emission of the laser diode is visually checked.

1. Remove 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 u button.

4. Observing the objective lens, check that the laser diode emits

light.

When the laser diode does not emit light, automatic power con-

trol 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

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, ob-

serve from more than 30 cm away from the objective lens.

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.

BEFORE REPLACING THE OPTICAL PICK-UP BLOCK

Please be sure to check thoroughly the parameters as par the "Opti-

cal 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: 0.45 to 0.65 Vp-p

IC601 FOK output ygpin

120

MAIN BOARD (SIDE B)

D-NS707F

2. Operation when the Service Mode is set.

When the Service Mode becomes active, following messages are

displayed onthe remote control LCD.

1) Turn off the power.

2) Open the solder land TAP824 (TEST) on the MAIN board.

Note :

The solder should be removed clean.

3. How to set the Tuner Service Mode.

To set the tuner Service Mode, the following method is available.

1) Confirm the set is not powered on.

2) Connect a external switch between TJ80 (Tu Test) and TJ81

(Gnd).

SERVICE MODE

The following confirmation can be performed when the Service

Mode is set.

1. How to set the CD Service Mode.

To set the Service Mode, the following method is available.

1) Confirm the set is not powered on.

2) Confirm the following settings.

OPEN/CLOSE detect switch (S820) ................. OFF

Solder Land (TAP833) ...................................... OPEN

[HOLD] switch (S803) ........................................ OFF

3) Short the solder land TAP824 (TEST) on the MAIN board.

4) Turn on the main power.

S820

TAP824

TAP833

MAIN BOARD(SIDE A)

IC601yg

S803

TP746

TP538

MAIN BOARD(SIDE B)

VS010B:

Microcomputer

version display

3) Slide the switch to connect TJ80 and TJ81 to be shorted.

4) Short the solder land TAP824 (Test).

5) Turn on the main power.

4. Operation when Tuner Service Mode is set.

When the tuner Service Mode becomes active, following the below

procedure.

1) CD microcomputer version display VS010B .

2) Press play key.

3) Display panel show all segments turn on.

4) Then show DTS microcontroller version: 00008

5) Slide the switch to oposite direction to open the connection of

TJ80(Tu test) and TJ81(Gnd).

6) Tuner mode turned on and display panel show :

87.50 MHz

7) After checking complete, turn of the power.

8) Open solder land TAP824 (Test) and remove the external switch.

Note :

The solder should be removed clean.

TJ81

(Gnd)

TJ80

(TU Test)

D-NS707F

SECTION 2

GENERAL

This section is extracted

from instruction manual.

Guide to parts and Controls

* This button has a tactile dot.

qs i

RADIO ON/BAND·MEMORY button

Display

DISPLAY/MENU button

(group)

·TUNE

button

VOL (volume) +*/ buttons

(group)

·TUNE

button

/PRESET ,

/PRESET + lever

(play/pause)*/ENTER button

(stop)·RADIO OFF button

Hand strap

HOLD switch

(headphones) jack

DC IN 4.5 V (external power input) jack

14 5

Display

Play mode indicator

Character information display

Disc indicator

Play list indicator

Group indicator

Timer indicator

Battery indicator

SOUND indicator

Note

You can invert the characters on the display.