Sony DCJ-01 Service manual

D-CJ01

SERVICE MANUAL

Ver 1.1 2002.01

SPECIFICATIONS

US Model

Canadian Model

AEP Model

UK Model

E Model

Australian Model

Chinese Model

Tourist Model

Model Name Using Similar Mechanism D-EJ621 CD Mechanism Type CDM-3123EBA Optical Pick-up Type DAX-23E

System

Compact disc digital audio system

Laser diode properties

Material: GaAlAs Wavelength: λ = 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

20 - 20 000 Hz +1dB (measured by JEITA CP-307)

Output (at 4.5 V input level)

Line output (stereo minijack) Output level 0.7 V rms at 47 k Ω Recommended load impedance over 10 k Ω Headphones (stereo minijack) Approx.5 mW + Approx. 5 mW at 16 Ω

–2

Power requirements

For the area code of the model you purchased, check the upper left side of the bar code on the package.

• Two Sony NC-WMAA rechargeable batteries: 2.4 V DC

• 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): US / Canadian / C&SA model: 120 V, 60 Hz AEP / French / EE / E13 model: 220 - 230 V, 50/60 Hz UK model: 230 - 240 V, 50 Hz Australian model: 240 V, 50 Hz Korean model: 100 - 240 V, 50/60 Hz Hong Kong model: 220 V, 50/60 Hz Chinese model: 220 V, 50 Hz

Tourist model: 100-240V, 50/60Hz

– Continued on page 2 –

9-873-390-02

PORTABLE CD PLAYER

Sony Corporation

Personal Audio Company Published by Sony Engineering Corporation

D-CJ01

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. Figures in brackets show the playing time of MP3 files.

TABLE OF CONTENTS

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

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

When using G-PROTECTION function

“1” “2”

Two NC-WMAA 10.5 10.5 (charged for [8] [8] about 3 hours**)

NH-WM2AA 22.5 23 (charged for [18] [18] about 5 hours**)

Two Sony alkaline 31.5 32 batteries LR6(SG) [24] [24] (produced in Japan)

* 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 projecting parts and controls)

Approx. 132.0 × 29.9 × 137.5 mm (5 1⁄4 × 1 3⁄16 × 5 1⁄2 in.)

Mass (excluding accessories)

Approx. 218 g (7.7 oz.)

Design and specifications are subject to change without notice.

• Abbreviation EE : East European C&SA : Central & SouthAmerica

2. GENERAL

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

3. DISASSEMBLY

3-1. Cabinet (Lower) Sub ASSY,

Cabinet (Inner) Sub ASSY ......................................... 5

3-2. MD Mechanism .......................................................... 5

3-3. Main Board ................................................................. 6

3-4. “Motor ASSY, Turn Table (Spindle) (M901)”............ 6

3-5. “Motor ASSY (Sled) (M902)”,

Optical Pick-up (DAX-23E) ...................................... 6

3-6. Switch Unit ................................................................. 7

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

5. DIAGRAMS

5-1. Explanation of IC Terminals....................................... 9

5-2. Block Diagram(1/2) ...................................................11

5-3. Block Diagram(2/2) .................................................. 12

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

5-5. Printed Wiring Boards – Main Board (Side B) –...... 14

5-6. Schematic Diagram – Main Section (1/4) – ............. 15

5-7. Schematic Diagram – Main Section (2/4) – ............. 16

5-8. Schematic Diagram – Main Section (3/4) – ............. 17

5-9. Schematic Diagram – Main Section (4/4) – ............. 18

6. EXPLODED VIEWS

6-1. Upper Lid Section..................................................... 22

6-2. Main Section............................................................. 23

6-3. Optical pick-up Section (CDM-3123EBA) .............. 24

7. ELECTRICAL PARTS LIST................................... 25

DANGER

Invisible laser radiation when open and interlock failed or defeated. Avoid direct exposure to beam.

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

• 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 damaged by heat.

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 SHO WN 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-CJ01

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, 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 0.8Vp-p

USABLE FORMAT

Use ISO9660 Level 1 format

Laser Diode Checking Methods

During normal operation of the equipment, emission of the laser diode is prohibited unless the upper panel is closed while turning ON the S801 (push switch type). The following checking method for the laser diode are operable.

Method : Emission of the laser diode is visually checked.

1. Open the upper lid.

2. Push the S801 as shown in Fig. 1.

3. Check the object lens for confirming normal emission of the laser diode. If not emitting, there is a trouble in the automatic power control circuit or the optical pick-up. During normal operation, the laser diode is turned ON about 2.5 seconds for focus searching.

S801

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.

Fig.1 Method to push S801

D-CJ01

LOCA TING THE CONTROLS

CD player (front)

SECTION 2

GENERAL

This section is extracted from instruction manual.

1 Display

2 REPEAT / ENTER button

3 Strap holes

4 PLAY MODE button

5 LINE OUT jack

6 i (headphones)

7 FOLDER – button

8 x (stop) / CHARGE button

9 VOL(volume) – button

CD player (inside)

0 SOUND button

qa DISPLAY button

qs 'm / M' (AMS / search)

button

qd FOLDER + button

qf DC IN 4.5 V

(external power input)jack

qg HOLD switch

qh NX * (play / pause)button

qj VOL(volume) +*

qk OPEN switch

ql G-PROTECTION

switch

w; Battery

compartment

*The button has a tactile dot.

SECTION 3

Set

Cabinet (lower) sub ASSY

Cabinet (inner) sub ASSY

MD mechanism

Switch unit

Main board

"Motor ASSY (sled) (M902)", Optical pick-up (DAX-23E)

"Motor ASSY, Turn table (spindle) (M901)"

DISASSEMBLY

The equipment can be removed using the following procedure.

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

3-1. CABINET (LOWER) SUB ASSY, CABINET ( INNER ) SUB ASSY

Screws (B2)

Open the battery case lid

D-CJ01

Claws

3-2. MD MECHANISM

Open

Optical pick-up flexibe board

Cabinet (inner) sub ASS

Claws

Cabinet (lower) sub ASSY

Screws (B2)

CN502 (green)

CN503 (white)

MD MECHANISM

Cabinet (lower) sub ASS

D-CJ01

3-3. MAIN BOARD

J302

J301

Cabinet (inner) sub ASS

Flexble board

3-4. “MO TOR ASSY, TURN T ABLE (SPINDLE) (M901)”

1 Screws (B1.7x5)

Motor ASSY, Turn tabl (Spindle) (M901)

Main board

Cabinet (lower) sub ASSY

J401

3-5. “MOTOR ASSY (SLED) (M902)”, OPTICAL PICK-UP (DAX-23E)

Cover, Gear

Screw ASSY, Feed

1 Screw (B 1.7x5)

Gear B

Motor ASSY (Sled) (M902)

4 Screw

(P 1.4x3.5)

Retainer, shaft

Optical pick-up (DAX-23E)

Chassis

3-6. SWITCH UNIT

D-CJ01

Lid (A) upper ASSY

Claws

Switch unit

Lid (B) upper ASSY

Screws

Claws

Screw

Cabinet (inner) sub ASSY

D-CJ01

)

R811

C60

5 S

R613

R209

SECTION 4

ELECTRICAL ADJUSTMENTS

The CD section adjustments are done automatically in this set.

Precautions for Check

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:

TP614 (RF)

MAIN BOARD (SIDE A)

R643

TP626

R810

C636

C637

L602

TP608

TP609

TP614

(RF)

AP605

R662

R641

C627

C510

R504

C625

R635 C619 R634

R633

C507

R503

TP514

C622

oscilloscope

(AC range)

Ω

C508

C506

TP508

TP513

R630

C618

R629

C501

TP509

SL409

TP506

TP507

R505

R609

R506

C657

R618

D101

TP613

R608

TP611

C309

TP616

C610

R614

TP617

TP60

IC601

110

Procedure:

1. Connect the oscilloscope to the test points TP614 (RF) and TP635 (GND) on the MAIN board.

2. Set a disc. (YEDS-18)

3. Press the u button.

4. 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 : 100 mV (With the 10 : 1 probe in use TIME/DIV : 500ns

R110

AP603

R210 C

C106

R109

C105

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

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

RF level

0.4 to 0.8 Vp-p

SECTION 5

DIAGRAMS

5-1. EXPLANATION OF IC TERMINALS

IC801 (SYSTEM CONTROL) µPD784216AY-CJ1

Pin No. Pin name I/O Description

1 CEX — Not used (OPEN).

2 to 8 — — Not used (OPEN).

9 VDD — Power supply terminal. 10 XTAL 0 O Crystal oscillator output (8MHz). 11 XTAL 1 I Crystal oscillator input (8MHz). 12 GND — Ground terminal. 13 — — Not used (OPEN). 14 GND — Ground terminal. 15 RESET I Reset terminal. 16 SCOR I Sob code signal input. 17 GRSCOR I GR SCOR signal input. 18 OPENSW I Open/Close switch input. 19 KEY I Main unit Key input. 20 RMKEY I Rrmote control Key input. 21 DCIN I AC adaptor detection. 22 — — Not used (OPEN). 23 VDD ( AVDD ) — Power supply terminal. 24 VDD ( AVREFO ) — Power supply terminal. 25 BATT 1 MNT I Battery input (3V). 26 BATT 2 MNT I Battery input (1.5V). 27 CHGMNT I Charge moniter input. 28 KEY 1 I Main unit Key input. 29 KEY 2 I Main unit Key input. 30 RMKEY I Rrmote control Rey input. 31 DCINMNT I Not used (OPEN). 32 — — Not used (OPEN). 33 GND ( AVSS ) — Ground terminal. 34 AGC O AGC output. 35 — — Not used (OPEN). 36 VDD ( AVREF 1 ) — Power supply terminal. 37 TSBDT 1 I TSB data input. 38 TSBDT 0 O TSB data output. 39 TSBSCK I TSB serial clock data input. 40 SENS I Sequencer input. 41 SDTO O Serial data output. 42 SCK O Serail data transfer clock signal output. 43 MCLK O Clocr signal output for RM control. 44 BEEP O Beep signal output. 45 SDAO O Serail data output for MPEG decorder. 46 XSOE O SOE signal output for IC601. 47 SCLO O Serail clock output. 48 XPOWLT O Power ON/OFF signal output. 49 XAPCOFF O Autmatic power control off signal output. 50 XHGON O HG on signal output.

D-CJ01

51 AMUTE O Audio mute signal output. 52 VCC 2 ON O HP amplifier ON/OFF output. 53 XRST I Reset terminal. 54 WAKE UP O Wakeup signal output. 55 XLAT O Latch signal output.

56 to 63 D 0 to D 7 O LCD drive output.

64 AO O LCD drive output.

65 to 71 — — Not used (OPEN).

72 GND — Ground terminal.

73 to 76 — — Not used (OPEN).

77 RD O RD output for switch unit. 78 WR 1 O WR 1 output for switch unit.

79 to 80 — — Not used (OPEN).

81 VDD — Power supply terminal. 82 XQOK O Q signal OK output for IC601. 83 TSB RW O TSB RW signal output for IC802. 84 TSBLAT O TSB lach output for IC802. 85 BUSY I BUSY signal input form IC601. 86 FOK I FOK signal input form IC601. 87 GFS I GFS signal input form IC601. 88 GPRO I G PROTECTION switch input. 89 XWRE O WRE signal output form IC601. 90 HOLD I HOLD switch input. 91 LINE IN I LINE IN jack detect input. 92 XRDE O RDE output for IC601. 93 TEST MODE I Test mode setting terminal. 94 GND — Ground terminal. 95 STANDBY O STANDBY output for IC606. 96 MP3 DSP RST O MP3 DSP reset output for IC606. 97 LCD RST O LCD reset output. 98 MP3 DSP I MP3 DSP status input.

99 to 100 — — Not used (OPEN).

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