Sony DEJ-616-CK Service manual

D-E660/EJ610/EJ611/EJ613/EJ615/EJ616CK

SERVICE MANUAL

Ver 1.3 2000.09

With SUPPLEMENT 1 (9-927-632-81) With SUPPLEMENT 2 (9-927-632-82)

Photo : D-EJ611

US Model

Canadian Model

D-EJ611/EJ615/EJ616CK

AEP Model

D-EJ610/EJ611/EJ613/EJ615/EJ616CK

UK Model

D-EJ611/EJ615

E Model

Australian Model

D-EJ611/EJ615/EJ616CK

Chinese Model

D-EJ611/EJ615

Tourist Model

D-E660

Model Name Using Similar Mechanism NEW CD Mechanism Type CDM-3223EBA Optical Pick-up Type DAX-23E

System

Compact disc digital audio system

Laser diode properties

Material: GaAIAs 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+1 dB (measured by EIAJ CP-

307)

Output (at 4.5 V input level)

Line output (stereo minijack)

Output level 0.7 V rms at 47 kilohms Recommended load impedance over 10 kilohms

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,

-2

SPECIFICATIONS

• 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, FR, G, EE, E13 model: 220 - 230 V, 50/60 Hz UK model: 230 - 240 V, 50 Hz EA model: 110 - 240 V, 50/60 Hz AUS model: 240 V, 50 Hz JE, E33 model: 100 - 240 V, 50/60 Hz HK model: 220 V, 50/60 Hz AR, CH model: 220 V, 50 Hz

• Sony DCC-E245 car battery cord for use on car battery : 4.5V 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 function

on off

Tow NC-WMAA 8 7 (charged for about 3 hours**) NH-WM2AA 18 15 (charged for about 4 hours**) Tow alkaline batteries LR6 32 28

* Measured value by the standard of EIAL

(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. 131 x 29 x 136 mm ( 51/4 x 13/16 x 53/8 in.)

Mass (excluding accessories)

Approx. 190 g (6.7 oz)

– Continued on page 2 –

PORTABLE CD PLAYER

MICROFILM

Supplied accessories

For the area code of the location in the which you purchased the CD player, check the upper left side of the bar code on the package.

D-EJ615

D-EJ611

TABLE OF CONTENTS

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

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

AC power adaptor (1) a – Headphones /earphones with – a remote control (1) Headphones /earphones (1) a – Rechargeable batteries (2) – a Battery carrying case (1) – a Strap (1) aa

For US customers

The AC power adaptor supplied is not intended to be serviced. Should 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.

Design and specifications are subject to change without notice.

• Abbreviation AUS : Australian FR : French HK : Hong Kong AR : Argentina JE : Tourist G : German EA : Saudi Arabia CH : Chinese EE : East European C&SA : Central and South America E13 : AC220-230V area model E33 : AC100-240V area model

2. GENERAL

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

3. DISASSEMBLY

3-1. Cabinet (Rear) Sub ASSY,

Cabinet (Front), Main Board....................................... 6

3-2. MD ASSY................................................................... 6

3-3. “Motor ASSY, Turn Table (Spindle) (M901)”............ 7

3-4. “Motor ASSY (Sled) (M902)”,

Optical Pick-up (DAX-23E) ...................................... 7

3-5. “Lid, Upper”, Switch Unit .......................................... 7

4. ELECTRICAL ADJUSTMENS ............................... 8

5. DIAGRAMS

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

5-2. Block Diagram...........................................................11

5-3. Printed Wiring Boards .............................................. 14

5-4. Schematic Diagram................................................... 17

6. EXPLODED VIEWS

6-1. Cabinet Section......................................................... 23

6-2. Optical pick-up Section (CDM-3223EBA) .............. 25

7. ELECTRICAL PARTS LIST................................... 26

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.

Laser component in this product is capable of emitting radiation exceeding the limit for Class 1.

This Compact Disc player is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT label is located on the rear exterior.

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 SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.

ATTENTION AU COMPOSANT AYANT RAPPORT

À LA SÉCURITÉ!

LES COMPOSANTS IDENTIFIÉS P AR 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.

– 2 –

S801

SECTION 1

SERVICING NOTES

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 0.5Vp-p

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 two checking methods 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.

Fig.1 Method to push S801

– 3 –

LOCA TING THE CONTROLS

SECTION 2

GENERAL

This section is extracted from instruction manual.

– 4 –

– 5 –

DISASSEMBLY

The equipment can be removed using the following procedure.

Cabinet (rear) sub ASSY, Main board MD ASSY

Set

SECTION 3

“Motor ASSY, Turn table (Spindle) (M901)”, Optical pick-up (DAX-23E), “Motor ASSY (Sled) (M902)”

Cabinet (front)

“Lid, Upper”, Switch unit

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

3-1. CABINET (REAR) SUB ASSY, CABINET (FRONT), MAIN BOARD

Lid, Upper

Screws (B2)

OPEN

MD ASSY

Claws

Cabinet (Front)

Flexible board (CN801)

Main board

3-2. MD ASSY

Cabinet (Rear) sub ASSY

Claws

Optical pick-up flexible board

CN503 (White)

CN502 (Green)

Claws

Screw (B2)

MD ASSY

Main board

Claws

– 6 –

3-3. “MO TOR ASSY , TURN T ABLE

(SPINDLE) (M901)”

Screws

(B1.7x5)

3-4. “MOTOR ASSY (SLED) (M902)”, OPTICAL PICK-UP (DAX-23E)

Screw (B 1.7x5)

Cover, Gear

Motor ASSY, Turn tabl (Spindle) (M901)

Chassis

3-5. “LID, UPPER”, SWITCH UNIT

Screw ASSY, Feed

Chassis

Gear B

Motor ASSY (Sled) (M902)

Screw

(P 1.4x3.5)

Bracket (Shaft)

Optical pick-up (DAX-23E)

Button (Operate)

Cover ASSY, Lid

Window (LCD)

Switch unit

Claws

OPEN

Lid, Upper

Spring (Full open)

Cabinet (Front)

Screws

– 7 –

SECTION 4

C620

R639

C638

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 AVLS switch : NORM HOLD switch : OFF

Focus bias Check

Condition:

• Hold the set in horizontal state.

Connection:

oscilloscope

(AC range)

Ω

2 K

TP635 (GND)

[ MAIN BOARD] (Side B)

TP618

TP619

C622

R638

40 EXCEPT US MODEL

TP608

TP634

C635

C632

95100105110115120

IC601

45 50 55 60

C618

R632

C623

R641

C627 C626

C625

R612

TP635

(GND)

TP426

C611

R606

R611

C612

R614

R616

MODEL

C631

616

R630

TP413

31 35

L601

TP617

TP629 (RF)

FB602

C628

R602

R633

TP639

C605

TP637

R610

C609

R607

C603

R605

R603 C602

R604 R643 US MODEL

C614

R617

C613

TP630

R615 R613

Q405

P601

R609

R619

C607

TP632

C615

TP631

EXCEPT US MODEL

FB301

C606

TP629

(RF)

C604

D302

TP633

TP301

TAP602

FB101

VDR102

VDR202

R608

TP305

TP10

Procedure:

1. Connect the oscilloscope to the test points TP629 (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

RF level

0.4 to 0.5 Vp-p

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

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

– 8 –

SECTION 5

DIAGRAMS

5-1. EXPLANATION OF IC TERMINALS

IC801 (SYSTEM CONTROLLER) TMP88CM22F-MIR1-1

Pin No. Pin name I/O Description

1 VSS — Ground terminal. 2 IRRMCO — Not used (OPEN). 3 FOKI I Focus OK signal input from the digital servo processor (IC601). “L”: NG, “H”: OK 4 AGCPWM O AGC control pulse signal output terminal. 5 RESERVE — Not used (OPEN). 6 RESERVE — Not used (OPEN). 7 AMUTE O Analog audio muting ON/OFF control signal output terminal. “H”: muting ON 8 VCC2 ON O VCC2 voltage control signal output terminal.

9 XRST O Reset signal output to IC601. “L”: reset 10 SCK O Serial data transfer clock signal output to IC601. 11 MSDTI I Serial data input from the IC601. 12 MSDTO O Serial data output to IC601. 13 WAKE UP O WAKE-UP control signal output terminal (for system standby reset). 14 SEL I Plug-in detection signal input terminal of LINE OUT/OPTICAL OUT. 15 CHGMNT I Battery charge voltage detection input from the power control (IC401). 16 KEY2 I Volume key input terminal. 17 BATMNT I Battery voltage detection signal input terminal 18 KEY1 I Key input terminal. 19 RMKEY I Key input from the headphone with remote commander (A/D input).

20 DCINMNT I

21 OPEN I

22 VREFL I Reference voltage input terminal (0V) for A/D converter. 23 VREFH I Reference voltage input terminal (+2V) for A/D converter. 24 VDD — Power supply terminal (+2V). 25 SCOR I Sub-code sync (S0+S1) detection signal input from the IC601. 26 GRSCOR I GRSCOR signal input from the IC601. 27 FG I FG pulse signal input. 28 BEEP O Beep sound output to the headphone amplifier (IC302). 29 RESERVE — Not used ( Fixed at “H”). 30 RMSCK O Communication clock output to the communication format converter (IC802).

31 RMDATI I

32 RMDATO O

33 RMRW O

34 RMLAT O

35 WFCKI I WFCK signal input from the IC601. 36 COMPRESSION I G PROTECTION switch input. 37 SLVCD I Not used (Fixed at “H”).

38 AVLS I

39 HOLD I HOLD switch (S803) input terminal. “L”: hold ON, “H”: hold OFF 40 BATT DET I External battery detection signal input terminal.

DC input voltage detection input terminal (A/D input) and DC input jack use/no use detection input terminal. CD door open/close detection switch (S801) input terminal. The stop status is reset with the falling edge of input signal.

Communication data bus input of headphone with remote commander from the communication format converter (IC802). Communication data bus output of headphone with remote commander to the communication format converter (IC802). Read/write control signal output of headphone with remote commander to the communication format converter (IC802). “L”: read mode, “H”: write mode Serial data latch pulse signal output of headphone with remote commander to the communication format converter (IC802).

AVLS (Automatic Volume Limiter System) switch (S803) input terminal. “L”: normal mode, “H”: limit mode

– 9 –

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