Sony D-E880, D-EJ815 Service manual

D-E880/EJ815

SERVICE MANUAL

Ver 1.3 2001. 11

Photo: D-EJ815 (Silver type)

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

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.5 mW + Approx. 5 mW at 16 ohms (Approx. 0.15 mW + Approx. 0.15 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.

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

• Sony NH-WM2AA rechargeable batteries:

2.4 V DC

+1–2

dB (measured by EIAJ CP-

9-927-606-13 Sony Corporation

2001K0500-1 Personal Audio Company C 2001.11 Published by Sony Engineering Corporation

• Two LR6 (size AA) batteries: 3 V DC

• AC power adaptor (DC IN 4.5 V jack): US/Canadian model: 120 V, 60 Hz AEP/E13 model: 220 - 230 V, 50/60 Hz UK model: 230 - 240 V, 50 Hz Australian model: 240 V, 50 Hz

Tourist/E33 model: 100 - 240 V, 50/60 Hz

Hong Kong model: 220 V, 50/60 Hz Chinese model: 220 V, 50 Hz

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

Two NC-WMAA 11 (charged for about 4 hours**)

NH-WM2AA 23 (charged for about 4 hours**)

Two Sony alkaline 37 (US, Canadian, AEP, UK)

Rechargeable batteries 46 (US, Canadian, AEP, UK) NC-WMAA and two alkaline batteries

Rechargeable batteries 58 (US, Canadian, AEP, UK) NH-WM2AA and two alkaline batteries

Two Sony alkaline 76 (US, AEP, UK) batteries LR6SG and two Sony alkaline batteries LR6SG (battery case)

(US, Canadian, AEP, UK) 12 (Other)

(US, Canadian, AEP, UK) 25 (Other)

40 (Other)batteries LR6SG

Model Name Using Similar Mechanism

CD Mechanism Type

Optical Pick-up Name

US Model

Canadian Model

AEP Model

UK Model

E Model

Australian Model

Chinese Model

D-EJ815

Tourist Model

D-E880

NEW US, Canadian, AEP, UK : CDM-3022EBG

Other : CDM-3022EBA US, Canadian, AEP, UK : DAX-22EBG

Other : DAX-22EBA

* Measured value by the standard of EIAJ

(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. 131.5 × 22.5 × 141.4 mm

⁄4 × 29⁄32 × 5

Mass (excluding rechargeable batteries)

Approx. 200 g (7.1 oz.)

Supplied accessories

C power adaptor (1) Headphones/earphones with remote control (1) Rechargeable batteries (2) Battery carrying case (1) Carrying case (1) Battery case (1)* AC plug adaptor (1)**

* Supplied with US, AEP and UK models ** Supplied with Tourist and E33 models

Design and specifications are subject to change without notice.

• Abbreviation

E13: 220 - 230 V AC area in E model E33: 100 - 240 V AC area in E model

⁄8 in.)

PORTABLE CD PLAYER

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

2. GENERAL ................................................................... 4

3. DISASSEMBLY ......................................................... 5

4. ELECTRICAL CHECKING .................................. 7

This appliance is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT MARKING is located on the rear exterior.

5. DIAGRAMS

5-1. Block Diagram – MAIN Section (1/2) – ........................ 9

5-2. Block Diagram – MAIN Section (2/2) – ........................ 11

5-3. Block Diagram – POWER SUPPLY Section – .............. 13

5-4. Printed Wiring Board ...................................................... 16

5-5. Schematic Diagram ......................................................... 19

5-6. IC Pin Function Description ........................................... 27

6. EXPLODED VIEWS ................................................ 29

7. ELECTRICAL PARTS LIST ............................... 32

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 dam-

aged by heat.

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

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMA TIC 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.

• When disconnecting the AC power adaptor from the AC outlet, grasp the adaptor itself. Do not pull it by the cord.

• Do not touch the AC power adaptor with wet hands.

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 –

SECTION 1

detection lever

S801

main board

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 30 cm away from the objecti ve lens.

BEFORE REPLACING THE OPTICAL PICK-UP BLOCK

Please be sure to check thoroughly 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 eg pin When checking FOK, remove the lead wire to disc motor.

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

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 S801. (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. W ith a disc not set, turn on the S801 with a scre wdriver ha ving

a thin tip as shown in Fig.1.

Note: Do not push the detection lever strongly , or it may be bent or dam-

aged.

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 pickup is faulty. In this operation, the objective lens will move up and down 5 times along with inward motion for the focus search.

Fig. 1 Method to push the S801

– 3 –

SECTION 2

GENERAL

This section is extracted from instruction manual.

Getting started

Locating the Controls

For details, see pages in parentheses.

CD player (front)

1 Display

(pages 9, 11 - 15)

2 ./>

(AMS/search) buttons (pages 8, 11, 12)

3 PLAY MODE

button (pages 10 - 12)

4 HOLD switch

(page 14)

5 OPEN switch

(page 7)

6 REPEAT/ENTER

button (pages 10 - 12)

7 SOUND button

(page 13)

CD player (rear)

qf Battery compartment

(page 18)

8 u (play/pause)

button (pages 8, 12)

9 x (stop)/CHG (charge)

button (pages 8, 15, 18)

q; EXT BATT

(external battery)/ DC IN 4.5 V (external power input) jack (pages 7, 18, 20)

qa LINE OUT

(OPTICAL) jack (page 16)

qs i/REMOTE jack

(page 7)

qd VOLUME +/–

buttons (page 8)

qg AVLS switch

(page 14)

Remote control

(Front)

qh HOLD switch

(page 14)

qj x (stop) button

(pages 8, 15)

qk Jog lever

u: play/pause (pages 8, 12) ./>: AMS/search (pages 8, 11, 12)

Press or slide the lever to operate your CD player.

(Rear)

ws P (play) MODE button

(pages 10 - 12)

wd RPT (repeat)/ENT

(enter) button (pages 10 - 12)

wf Clip

You can turn and change the angle of the clip.

(not supplied with the Canadian model)

ql Display

(pages 9, 11 - 15)

w; LIGHT button

Press to illuminate the display on the remote control for about 5 seconds when using the player on the rechargeable batteries or alkaline batteries.

wa VOLUME +/–

tab (page 8)

wg SOUND button

(page 13)

wh DISPLAY button

Press to check the remaining time on the CD and the number of the tracks left.

Note

Use only the supplied remote control. You cannot operate this CD player with the remote control supplied with other CD players.

(Continued)

Getting started

Remote control

wj x (stop) button

(pages 8, 15)

wk VOL (volume)

+/– button (page 8)

Note

Use only the supplied remote control. You cannot operate this CD player with the remote control supplied with other CD players.

(supplied with the Canadian model)

wl N(play)•>

(AMS/search) button (pages 8, 11, 12)

e; HOLD switch

(page 14)

ea .(AMS/

search) button (pages 8, 11, 12)

– 4 –

SECTION 3

DISASSEMBLY

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

CABINET (UPPER) SUB ASSY , CABINET (LOWER) SUB ASSY

2 three screws (B2)

5 cabinet (upper) sub assy

3 three claws

1 open the upper lid sub assy.

3 five claws

4 flexible board

(CN801)

INSTALLATION MAIN BOARD

On installation MAIN board, adjust the S803, 804 and knobs (HOLD, AVLS).

S804

3 two claws

6 cabinet (lower) sub ass

2 two screws (B2)

CDM-3022EBG (US, Canadian, AEP, UK) CDM-3022EBA (Other)

S803

screw (1.4 × 4)

knob (HOLD)

– 5 –

knob (AVLS)

cabinet (lower) sub assy

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

INSTALLATION UPPER LID SUB ASSY

1 flexible board

upper lid sub assy

2 cabinet (upper) sub assy

3 three bosses

2 switching arm assy

After sticking the switching arm assy into the hole on the cabinet, connect them with screw. To remove the switching arm assy, following reverse procedure, remove screw, then three bosses.

– 6 –

SECTION 4

oscilloscope

(AC range)

+ –

MAIN board

TP601 (RF) TP (GND)

2 k Ω

RF level

0.35 to 0.65 Vp-p

ELECTRICAL CHECKING

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

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

Checking Location:

– MAIN board (Side A) –

Focus bias Check

Condition:

• Hold the set in horizontal state.

Connection:

Procedure:

1. Connect the oscilloscope to the test points TP601 (RF) and TP (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 : 500 ns

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.

(GND)

TP601

(RF)

– 7 –

SECTION 5

DIAGRAMS

D-E880/EJ815

5-1. BLOCK DIAGRAM – MAIN Section (1/2) –

DETECTOR

VCC

OPTICAL PICK-UP BLOCK

DAX-22EBG

(US, Canadian, AEP, UK)

DAX-22EBA

(Other)

LASER DIODE

(Page 13)

(SPINDLE)

M902

(FOCUS)

2-AXIS

DEVICE

(TRACKING)

• SIGNAL PATH

: CD PLAY (ANALOG OUT)

: CD PLAY (OPTICAL OUT)

• Abbreviation E13 : 220-230V AC area in E model E33 : 100-240V AC area in E model

M901

(SLED)

COM

PREDRIVER

FOCUS/TRACKING COIL DRIVER

SLED MOTOR DRIVER

FO2

RO2

FO1

RO1

FO3

RO3

BEMF

SEPARATOR

IC401 (1/2)

CONTROLLER,

PREDRIVER

SPINDLE MOTOR DRIVER

IC402

ROTATION DETECTOR

FEEDBACK

GENERATOR

PHASE/PWM

FI2

RI2

FI1

RI1

FI3

PATTERN

DECODER

MODE

CONTROL

CPU

INTERFACE

RST

SYNC

PWM

POL

DATA

CLK

LTCH

OEB

RF AMP,

DIGITAL SIGNAL PROCESSOR,

DIGITAL SERVO PROCESSOR,

D-RAM CONTROLLER

IC601

HOLD

VCPU 2V

WDCK

WFCK

MDS

XTAO

XTAI

RFAC

MDP XSOE SENS R4M XLAT CLOK SCOR SDTO

RFDC

F B A

SIGNAL

PROCESSOR

BLOCK

SDTD

SENS

CLOK

SDTI

SDTD

OPEN

S801

(OPEN)

DIGITAL

MEMORY

CONTROLLER,

BUS BOOST

BLOCK

SERVO BLOCK

XSOE

WDCK

XLAT

242523

SCK

WFCK

R4M

30 35

2826

35114443101225

XLAT

XSOE

WFCKI

GRSCOR

SYSTEM CONTROLLER

IC801 (1/3)

OUT

FOK

FFDR FRDR TFDR TRDR SFDR SRDR

LPF

FOK

FOKI

AMUTE

XIN

DOUT

D0-D3

116, 115, 118, 117

A0-A10

109 – 106, 7 – 5, 3 – 1, 111

XRAS

113

XWE

114

XCAS

119

XOE

120

XTAI

XTAO

LOUT1

LOUT2

104

XRST

X601

16.9MHz

DOUT

DQ1-DQ4A0-A10

2, 3, 24, 25

D-RAM

IC602

9 – 12, 15 – 19, 21, 8

XRAS

XWE

XCAS

XOE

LOUT1,

LOUT2

AMUTE

XRST

R4M

SYNC

RST

SDTO

SCK

(Page 11)

(Page 13)

RFDC

RFAC

SWITCHING

Q604

EJ880/EJ815 : E13, E33, Hong Kong, Australian, Chinese

SFDR

SRDR

FFDR

FRDR

TFDR

TRDR

2 3 4

7 9 8

BUFFER

IC403

42 43 44

45 41

C176 MDP MDS

DRVLT XSPDOE

XHGON

OPTICAL PICK-UP

POWER ON

SWITCH

Q411

SCOR

S804

HOLD

OFF

VDD 2V

– 9 – – 10 –

+ 17 hidden pages

Sony D-E880, D-EJ815 Service manual

TABLE OF CONTENTS

SERVICING NOTES

GENERAL

DISASSEMBLY

ELECTRICAL CHECKING

DIAGRAMS