Sony DNF-007, DNF-0070 Service manual

D-NF007/NF0070

SERVICE MANUAL

Ver. 1.1 2005.11

Photo : D-NF007

SPECIFICATIONS

Canadian Model

AEP Model

D-NF007

E Model

D-NF007/NF0070

Australian Model

D-NF007

Model Name Using Similar Mechanism D-FJ003

CD Mechanism Type CDM-3525A

Optical Pick-up Name DAX-25E

CD player

System: Compact disc digital audio system

Laser diode properties:

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.)

Radio Frequency range

• Canadian and Latin American models 9 kHz step: FM: 87.5 - 108 MHz AM: 531 - 1 710 kHz 10 kHz step: FM: 87.5 - 108 MHz AM: 530 - 1 710 kHz

• Other models 9 kHz step: FM: 87.5 - 108 MHz AM: 531 - 1 602 kHz 10 kHz step: FM: 87.5 - 108 MHz AM: 530 - 1 710 kHz

Antennas

FM: Headphones cord antenna AM: Built-in ferrite bar antenna

General Power requirements:

•Two LR6 (size AA) batteries: 1.5 V DC × 2

• AC power adaptor (DC IN 4.5 V jack): 220 V, 50 Hz (Model for China) 120 V, 60 Hz (Model for Mexico)

Dimensions (w/h/d) (without projecting parts and controls):

Approx. 139.8 × 28.8 × 139.8 mm (5 5⁄8 × 1 3⁄16 × 5 5⁄8 in.)

Mass (excluding accessories):

Approx. 219 g (7.8 oz.) Operating temperature: 5°C - 35°C (41°F - 95°F)

MPEG Layer-3 audio coding technology and patents licensed from Fraunhofer IIS and Thomson.

Design and specifications are subject to change without notice.

Supplied accessories

AC power adaptor (1) (not supplied with the USA model) Headphones (1)

Battery life* (approx. hours) (When the CD player is used on a flat and stable place.) Playing time varies depending on how the CD player is used.

When using two Sony alkaline batteries LR6 (SG) (produced in Japan) G-PROTECTION G-on G-off

Audio CD 16 11 MP3 CD (Recorded at 128 kbps) 23 23 RADIO ON 35 * Measured value by the standard of JEITA (Japan Electronics and

Information Technology Industries Association).

Design and specifications are subject to change without notice.

FM/AM PORTABLE CD PLAYER

9-879-827-02

Sony Corporation

Personal Audio Division Published by Sony Engineering Corporation

D-NF007/NF0070

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

2. GENERAL ................................................................... 3

3. DISASSEMBLY

3-1. Disassembly Flow ........................................................... 4

3-2. Upper Lid Assy, Cabinet (Middle) Assy,

Cabinet (Lower) Assy...................................................... 4

3-3. Optical Pick-Up (CDM-3525A), Main Board ................. 5

4. ELECTRICAL ADJUSTMENT ............................. 6

5. DIAGRAMS

5-1. Block Diagram – CD/Power Section –........................... 10

5-2. Block Diagram – Tuner Section – .................................. 11

5-3. Printed Wiring Board – Main Board (Side A) – ............. 12

5-4. Printed Wiring Board – Main Board (Side B) – ............. 13

5-5. Schematic Diagram – Main Board (1/3) – ..................... 14

5-6. Schematic Diagram – Main Board (2/3) – ..................... 15

5-7. Schematic Diagram – Main Board (3/3) – ..................... 16

5-8. IC Pin Function Description ............................................ 20

6. EXPLODED VIEWS ................................................. 23

7. ELECTRICAL PARTS LIST .................................. 24

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.

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.

CAUTION

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

UNLEADED SOLDER

Boards requiring use of unleaded solder are printed with the leadfree 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.

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 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.

SECTION 1

SERVICING NOTES

D-NF007/NF0070

NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT

The laser diode in the optical pick-up block may suffer electrostatic 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 pickup block. Therefore, when checking the laser diode emission, 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 S811. (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. With a disc not set, turn on the S811 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 control circuit or optical pick-up is faulty. In this operation, the objective lens will move up and down 2 times along with inward motion for the focus search.

S811

LOCATING THE CONTROLS

SOUND/AVLS

i (headphones) jack

P MODE/

VOL +*/–

OPEN

HOLD (rear)

RADIO ON/BAND

* The button has a tactile dot.

Headphones

MONO

LOCAL

PRESET

Band

Track number/Preset number

Playing time/Frequency

SECTION 2

GENERAL

Display

PRESET LOCAL MONO

Fig. 1 Method to push the S811

This section is extracted from instruction manual.

DC IN 4.5 V

to an AC outlet

AC power adaptor

./>• TUNE –/+

u*(play/pause)/ENTER

x (stop)•RADIO OFF

GROUP

MP3 indicator

Play mode

Remaining battery power

Group indicator

Sound mode

(group) –/+ •

D-NF007/NF0070

• This set can be disassembled in the order shown below.

3-1. DISASSEMBLY FLOW

3-2. UPPER LID ASSY, CABINET (MIDDLE) ASSY, CABINET (LOWER) ASSY

(Page 4)

3-3. OPTICAL PICK-UP (CDM-3525A),

MAIN BOARD

(Page 5)

SECTION 3

DISASSEMBLY

SET

Note: Follow the disassembly procedure in the numerical order given.

3-2. UPPER LID ASSY, CABINET (MIDDLE) ASSY, CABINET (LOWER) ASSY

screw

upper lid assy

five screws

two claws

cabinet (middle) assy

open

three claws

cabinet (lower) assy

3-3. OPTICAL PICK-UP (CDM-3525A), MAIN BOARD

CN501

Unsolder four lead wires

optical pick-up CDM-3525

MAIN board

D-NF007/NF0070

to optical pick-up

BLK

RED

MAIN board (side A)

GRY

ORG

cabinet (lower) assy

D-NF007/NF0070

Ver. 1.1

SECTION 4

ELECTRICAL ADJUSTMENTS

[TUNER SECTION] CLOCK SHIFT ADJUSTMENT

Connection:

MAIN board

TP471 (SIFT)

TP005 (RFGND (A)) or

TP003 (RFGND (B))

frequency counter

+ –

Adjusting Procedure:

1. Connect the frequency counter to TP471 (SIFT) and TP005 (RFGND (A)) or TP003 (RFGND (B)) on the MAIN board.

2. Set the AM 621 kHz (9kHz step model) or AM 620 kHz (10kHz step model)

3. Adjust the RV471 so that the reading of frequency counter is 180 ± 1 kHz.

0 dB=1 µV

[AM]

Setting:

Function: RADIO Band: AM AVLS: OFF

MAIN board

AM RF signal

generator

30% amplitude modulation by 400 Hz signal Output level: as low as possible

Put the lead-wire antenna close to the set.

TP012 (TU_L) or

TP014 (TU_R)

Ω

set

MAIN board

TP005 (RFGND (A)) or

TP003 (RFGND (B))

level meter

+ –

( ): 9kHz step model

AM IF ADJUSTMENT

Adjust for a maximum reading on level meter

T002 620 (621) kHz

( ): 9kHz step model

AM FREQUENCY COVERAGE CONFIRMATION

Adjustment Part Frequency Display Reading in Digital Voltmeter

Confirmation 530 (531) kHz 0.8 ± 0.5 V

Confirmation 1,710 (1,602) kHz 7.2 (6.8) ± 1.0 V

( ): 9kHz step model

AM TRACKING ADJUSTMENT

Adjust for a maximum reading on level meter

T001 620 (621) kHz

CT001 1,400 (1,404) kHz

FM FREQUENCY COVERAGE ADJUSTMENT

Adjustment Part Frequency Display Reading in Digital Voltmeter

Confirmation 87.5 MHz 2.8 ± 1.0 V

L004 108 MHz 8.0 ± 1.0 V

FM TRACKING ADJUSTMENT

Adjust for a maximum reading on level meter

L003 98 MHz

Adjustment and Connecting Location: MAIN board

(See page 7)

[FM]

Setting:

Function: RADIO Band: FM AVLS: OFF

MAIN board

TP012 (TU_L) or

TP014 (TU_R)

level meter

Ω

MAIN board

TP005 (RFGND (A)) or

TP003 (RFGND (B))

digital voltmeter

Ω

+ –

FM RF signal

generator

0.01 µF

33.75 kHz frequency deviation by 1 kHz signal Output level: as low as possible

TP005 (RFGND (A)) or

TP003 (RFGND (B))

TP005 (RFGND (A)) or

MAIN board

TP006 (VT)

MAIN board

TP002 (RF (A)) or

TP001 (RF (B))

set

MAIN board

TP003 (RFGND (B))

100 k

• Repeat the procedures in each adjustment several times, and the tracking adjustments should be finally done by the trimmer capacitors.

Adjustment and Connecting Location:

D-NF007/NF0070

(SIDE A)MAIN BOARD

CT001: AM Tracking Adjustment

RV471: Clock Shift Adjustment

T002: AM IF Adjustment

TP005

IC601

(RFGND(A))

T001: AM Tracking Adjustment

TP001

(RF(B))

L003: FM Tracking Adjustment

MAIN BOARD

(SIDE B)

TP002

T001

(RF(A))

TP003

(RFGND(B))

IC001

TP012

(TUL)

TP006

(VT)

L004: FM Frequency Coverage Adjustment

TP014

(TUR)

TP471

(SIFT)

IC602

D-NF007/NF0070

R601

)

Ver. 1.1

[CD SECTION]

The CD section adjustments are done automatically in this set.

Adjusting Procedure:

1. Perform check in the order given.

2. Use YEDS-18 disc (Part No: 3-702-101-01) unless otherwise indicated.

3. Power supply voltage requirement :DC4.5 V in DC IN jack.

(J401) VOLUME button : Minimum HOLD switch :OFF

Focus bias Check

Condition:

• Hold the set in horizontal state.

Connection:

D871

(SIDE A)

R472

R475

C472

R474

C478

R411

C474

IC471

D004

C471

C473

021

SL801 OPEN

R477

(EXCEPT AEP)

R476

R473

C805

Q475

RV471

IC802

ECB

C040

R020

(AEP)

R824

R1015

R1014

R821

R872

R1016

R1010

IC1001

C001

R871

R873

R826

R828

R812

R808

R804

R844

R843

MAIN BOARD

SL801(OPEN)

C880

R1011

R1012

C814

R874

R1003

R1019

C812

C806

R1017

Procedure:

1. Make a solder bridge to short SL801 (OPEN) on the MAIN board side A.

2. Connect the oscilloscope to the test point TP604 (RF) and TP406 (M-GND) on the MAIN board side B.

3. Set a disc. (YEDS-18)

4. Press the u button.

5. Check the oscilloscope waveform is as shown below. A good eye pattern means that the diamond shape (

) in the

center of the waveform can be clearly distinguished.

RF Signal reference Waveform (Eye Pattern)

VOLT/DIV : 500 mV (With the 10 : 1 probe in use TIME/DIV : 500ns

RF level

0.2 Vp-p

1.2

R1018

To watch the eye pattern, set the oscilloscope to AC range and increase the vertical sensitivity of the oscilloscope for easy watch-ing.

SL871

6. Stop revolving of the disc motor by pressing the x button.

7. SL801 is opened by taking the solder bridge.

R876

C874

ECB

C877

Q804

oscilloscope

(AC range)

–

MAIN BOARD

(SIDE B)

TAP001

C014

TP002 RF(A)

FL001

TAP003

RF GND(B)

C023

IC001

C043C045

X001

TP406

M-GND

TP604(RF)

TP406(M-GND)

NATURAL

GREEN

RED

C022

R004

C003

C002

R001

C024

C005

D001

R002

C006

D002

C011

C020

C018

R007

C021

C037

R109

L005

C046

R013

R018

TP012

TUL

C102

D003

C109

TP013

GND

C031

R014

C035

C032

R016

TP006

R220

R024

R012

R011

RB901

TP014

TUR

IC901

R906

R902

R901

R1008

C910

R1009

FB901

Q102

C301

Q101

R303

C620

TP604

C635

R617

C627

FB604 FB605

R204

R203

R103

C109

C209

C631

R626

R621

C626

R632

R606

C612

C606

C605

FB606

C632

C633

C634

R627

C905

C906

X601

R902

C907

R905

R618 R622

FB601

C638

R904

C624

IC602

1004

IC603

R630

FB201

R620

R615

C615

R613

C609

R605

R604

R603

SECTION 5

DIAGRAMS

D-NF007/NF0070

• Note for Printed Wiring Boards and Schematic Diagrams

Note on Printed Wiring Boards.

• X : parts extracted from the component side.

• Y : parts extracted from the conductor side.

• a : Through hole.

• f : internal component

• : Pattern from the side which enables seeing. (The other layers' patterns are not indicated.)

Caution: Pattern face side: Parts on the pattern face side seen from (Side B) the pattern face are indicated. Parts face side: Parts on the parts face side seen from (Side A) the parts face are indicated.

• Abbreviation 3AEP : UK model 8E19 : Philippines model AUS : Australian model CND : Canadian model E19 : Singapore model EE : East European model

Note on Schematic Diagrams.

• All capacitors are in µF unless otherwise noted. (p: pF) 50 WV or less are not indicated except for electrolytics and tantalums.

• All resistors are in Ω and 1/ specified.

• f : internal tolerance.

• C : panel designation.

Note:

The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified.

• A : B+ Line.

• H : adjustment for repair.

• Power voltage is dc 3 V and fed with regulated dc power supply from battery terminal.

•Voltages and waveforms are dc with respect to ground under no-signal (detuned) conditions. no mark : CD PLAY ( ) : FM [ ] : AM

•Voltages are taken with a VOM (Input impedance 10 MΩ). Voltage variations may be noted due to normal production tolerances.

•Waveforms are taken with a oscilloscope. Voltage variations may be noted due to normal production tolerances.

• Circled numbers refer to waveforms.

• Signal path.

J : CD PLAY F : FM f : AM

• Abbreviation 3AEP : UK model 8E19 : Philippines model AUS : Australian model CND : Canadian model E19 : Singapore model EE : East European model

W or less unless otherwise

Note:

Les composants identifiés par une marque 0 sont critiques pour la sécurité. Ne les remplacer que par une piéce portant le numéro spécifié.

•Waverforms

IC601 ya XO (CD play mode)

0.5 V/DIV, 20 ns/DIV

IC801 yd XOUT4M

(CD play mode)

1 V/DIV, 50 ns/DIV

IC001 qg X O (RADIO mode)

1 V/DIV, 5 µs/DIV

59 ns

1.8 Vp-p

3.5 Vp-p

126 ns

1.6 Vp-p

13.75 µs

D-NF007/NF0070

+ 21 hidden pages

Sony DNF-007, DNF-0070 Service manual

SPECIFICATIONS

TABLE OF CONTENTS

SERVICING NOTES

GENERAL

3-1. DISASSEMBLY FLOW

3-2. UPPER LID ASSY, CABINET (MIDDLE) ASSY, CABINET (LOWER) ASSY

DISASSEMBLY

3-3. OPTICAL PICK-UP (CDM-3525A), MAIN BOARD

ELECTRICAL ADJUSTMENTS

DIAGRAMS