SONY D 303 Service Manual

D-E01/EJ01

SERVICE MANUAL

Ver 1.0 1999. 06

Photo: D-E01

SPECIFICATIONS

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 +1/–2 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

Headphones (stereo minijack)

Approx. 15 mW + Approx. 15 mW at 16 ohms (Approx. 3 mW + Approx. 3 mW at 16 ohms) *

* For the customers in France Optical digital output (optical output connector)

Output level: –21 - –15 dBm

Wavelength: 630 - 690 nm at peak level

Power requirements

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

• Tw o Sony NH-14WM rechargeable batteries:

2.4 V DC

• Two LR6 (size AA) batteries: 3 V DC

• AC power adaptor (DC IN 4.5 V jack): US, CND model: 120 V, 60 Hz AEP, FR, G, E13 model: 220 - 230 V, 50/60 Hz UK model: 230 - 240V, 50 Hz AUS model: 240 V, 50 Hz E01/E33 model: 100 - 240 V, 50/60 Hz EJ01: HK model: 220 V, 50/60 Hz CH model: 220 V, 50 Hz

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

US Model

Canadian Model

AEP Model

UK Model

E Model

Australian Model

Chinese Model

D-EJ01

Tourist Model

D-E01

Model Name Using Similar Mechanism NEW CD Mechanism Type CDM-3021EBA Optical Pick-up Name DAX-21E

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. Two NH-14WM 25 (charged for about 4 hours **) Battery case 40 (two alkaline batteries) Rechargeable batteries 62 NH-14WM and battery case (two alkaline batteries) * Measured value by the standard of EIAJ

(Electronic Industries Association of Japan).

** Charging time varies depending on how the

rechargeable battery is used.

– Continued on next page –

MICROFILM

PORTABLE CD PLAYER

– 1 –

Operating temperature

5°C - 35°C (41°F - 95°C)

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

Approx. 138.5 × 21.5 × 136.2 mm (5 1/2 × 7/8 × 5 3/8 in.)

Mass (excluding rechargeable batteries)

Approx. 220 g (7.8 oz.)

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 AC-E455 (1) Headphones/earphones with remote control RM-CD01ELT + MDR-E838SP (1) (Except US model) RM-CD01ELT + MDR-W034SP (1) (US model only) Rechargeable batteries NH-14WM (2) Battery carrying case (2) Carrying case (1) Battery case (1) 8-cm CD adaptor (1) * AC plug adaptor (1) ** * Supplied with E01/E13, HK, CH models ** Supplied with E01/E33 model only

For US customers

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

TABLE OF CONTENTS

1. SERVICE NOTE ................................................................ 3

2. GENERAL

Getting started ......................................................................... 4

Playing a CD ........................................................................... 5

3. DISASSEMBLY

3-1. Upper Panel Assy ................................................................6

3-2. Tray (P) Assy, Escutcheon, Cabinet .................................... 6

3-3. OP Assy............................................................................... 7

3-4. SW Unit Assy, Main Board ................................................. 7

4. ELECTRICAL ADJUSTMENT

4-1. Focus Bias Check ................................................................ 8

5. DIAGRAMS

5-1. IC Pin Description............................................................... 9

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

5-3. Block Diagram –Audio Section– ...................................... 13

5-4. Block Diagram –Power Supply Section–.......................... 15

5-5. Printed Wiring Board ........................................................ 17

5-6. Schematic Diagram –Main Section (1/3)– ........................ 21

5-7. Schematic Diagram –Main Section (2/3)– ........................ 23

5-8. Schematic Diagram –Main Section (3/3)– ........................ 25

• Abbreviation CND : Canadian model FR : French model G : German model E13 : AC 220-230V area in E model AUS : Australian model E33 : AC 100-240V area in E model HK : Hong Kong model CH : Chinese model

CAUTION

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

This Compact Disc player is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT table is located on the bottom 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.

6. EXPLODED VIEWS

6-1. Upper Panel Section .......................................................... 31

6-2. Lower Panel Section..........................................................32

6-3. CD Mechanism Deck Section ........................................... 33

7. ELECTRICAL PARTS LIST.........................................34

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINE WITH MARK ! ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY P ARTS WHOSE P ART NUMBERS APPEAR AS SHOWN IN THIS MANU AL OR IN SUPPLEMENTS PUBLISHED BY SONY.

ATTENTION AU COMPOSANT AYANT RAPPORT

À LA SÉCURITÉ!!

LES COMPOSANTS IDENTIFIÉS P AR UNE MARQUE ! SUR LES DIAGRAMMES SCHÉMA TIQUES 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 –

SECTION 1

SERVICE NOTE

• 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 . Theref ore, w hen checking the laser diode emission, observe from more than 30 cm away from the objectiv e lens.

• To Check the Laser Diode and Focus Searc h Operation

Open the upper panel. Turn on the power without a disc while the main board S801 (OPEN) is ON (or T AP802 is shorted). Then, observe the objective lens and check that the following operations are performed.

1. Scatterd light of laser beams is seen.

2. Check for vertical movements (five) of the objecti ve lens (with

movement of the PU on the inner circumference).

– main board (side A) –

• CHUCK PLATE JIG ON REPAIRING

On repairing CD section, playing a disc without the upper panel section, use Chuck Plate Jig.

• Part No. of Chuck Plate Jig: 4-221-965-01

chuck plate jig

disc

S801

(OPEN)

• Before Replacing the Optical Pick-Up Block

Please be sure to check throughly the parameters as par the “Optical 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 #∞ pin

When checking FOK, remove the lead wire to disc motor. When checking FOK value, remove the lead wire to

disc motor.

• RF signal P-to-P value : 0.35 - 0.65 Vp-p

• The repairing grating holder is impossible.

S801

TAP802

– 3 –

SECTION 2

GENERAL

This section is extracted from instruction manual.

– 4 –

– 5 –

SECTION 3

DISASSEMBLY

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

3-1. UPPER PANEL ASSY

upper panel assy

screw (M2)

shaft

screw (M2)

tray (P) assy

3-2. TRAY (P) ASSY, ESCUTCHEON, CABINET

tray (P) assy

screw (M1.4x3.0),

locking

screw (M1.4x4.5),

locking

shaft

screws (M1.4x6.5)

screw (M2)

screw

screw (M1.4x4.5), locking

!¡

screw (M1.4x3.0),

locking

!™

cabinet

escutcheon

claw

– 6 –

claw

screw (M1.4x3.0),

locking

claw

3-3. OP ASSY

CN503

CN501

OP assy

CN502

3-4. SW UNIT ASSY, MAIN BOARD

switch unit assy

screw (M1.4x3)

MAIN board

– 7 –

SECTION 4

ELECTRICAL ADJUSTMENTS

CD section adjustments are done automatically in this set. In case of operation check, confirm that focus bias.

4-1. FOCUS BIAS CHECK

1. Connect the oscilloscope between TP614 (RF) or TP601 (RF) and GND on main board.

2. Insert the disc (YEDS-18). (Part No. : 3-702-101-01)

3. Press the ^ button.

4. Confirm that the oscilloscope waveform is as shown in the figure below. (eye pattern) 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 (10 : 1 probe in use) TIME/DIV : 500 nS

RF level :

0.5

0.15 Vp-p

When observing the eye pattern, set the oscilloscope for AC range and raise vertical sensitivity.

Test Points:

– main board (side A) –

TP601 (RF)

– main board (side B) –

TP614 (RF)

– 8 –

SECTION 5

DIAGRAMS

5-1. IC PIN DESCRIPTION

• IC801 TMP88CM22F-00 (SYSTEM CONTROLLER)

Pin No. Pin Name I/O Pin Description

1 VSS I Ground 2 IRRMC I Fixed at L. 3 FOKI I Focus OK signal input from digital servo processor (IC601). 4 AGCCON O AGC control pulse output 5 XLEDDISP O CHG/HOLD LED control signal output 6 VCC SWITCHING O Control signal output for Switching power supply circuit. 7 AMUTE O Analog audio muting ON/OFF signal control signal output (H: Mute ON) 8 VCC2 ON O VCC2 voltage control output

9 XRST O Reset signal output to CXD3027R (IC601). (L: Reset) 10 SCK O Serial data transfer clock signal output to CXD3027R (IC601). 11 SDTI I Serial data input from CXD3027R (IC601). 12 SDTO O Serial data output to CXD3027R (IC601). 13 SLPOUT O WAKE-UP control signal output (for system standby reset) 14 SEL I Plug-in detection signal input of LINE OUT/OPTICAL OUT jack. 15 CHGMNT1 I Battery charge voltage detection input from power control IC (IC401). 16 VCDKEY I Fixed at H. 17 BATMNT I Battery voltage detection input 18 KEY I Key input from switch unit (A/D input) 19 RMKEY I Key input from headphones with remote controller (A/D input). 20 DCINMNT I DC input voltage detection input (A/D input) DC input jack use/no-use detect input 21 OPEN I CD door open/close detection input 22 VREFL I Reference voltage (0 V) input for A/D converter. 23 VREFH I Reference voltage (+2 V) input for A/D converter. 24 VDD — Power supply pin (+2 V) 25 SCOR I Sub code sync detection input from CXD3027R (IC601). 26 GRSCOR I GRSCOR signal input 27 FG I FG pulse input 28 BEEP O Beep sound output to headphone AMP (IC802). 29 NC — Not used. (Open) 30 RMSCK O Communication clock to CXD751 (IC801). 31 RMD ATI I Communication data bus of headphones with remote controller from CXD751 (IC802). 32 RMDATO O Communication data bus of headphones with remote controller to CXD751 (IC802). 33 RMRW O Read/write control signal output to headphones with remote. (L: Read, H: Write) 34 RMLAT O Serial data latch pulse output to headphones with remote. 35 WFCKI I WFCK input

36, 37 NC — Not used. (Open)

38 AVLS I AVLS (Automatic Volume Limiter System) switch input (L: Normal, H: Limit) 39 HOLD I HOLD switch input (L: HOLD on, H: HOLD off) 40 EX BATT I EXT BATT plug-in detection input 41 XSPDOE O Spindle motor driver control signal output 42 XHGON O Optical pick-up VCC control signal output (L: on) 43 XLAT O Serial data latch pulse output to D-RAM controller (IC601). (for ESP) 44 XSOE O Output enable signal output (for ESP) 45 DRVLT O Spindle motor driver latch output 46 XPOWLT O Latch output to VCD control IC. 47 XDOUTON O DIGITAL OUT LED control signal output 48 XAPC OFF O APC mute signal output (L: mute) 49 NC — Not used. (Open)

50 – 52 SEG14 – 12 O LCD drive segment output (Open) 53 – 56 SEG11 – 8 O LCD drive segment output (Open) 57 – 64 SEG7 – 0 O LCD drive segment output (Open)

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