Sony DNE-800 Service manual

D-NE800

SERVICE MANUAL

Ver 1.1 2004.03

Photo : WHITE

SPECIFICATIONS

System

Compact disc digital audio system

Laser diode properties

Material: GaAlAs Wavelength: λ = 770 - 800 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

Output (at 4.5 V input level)

Line output (stereo minijack)

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

Headphones (stereo minijack)

Approx. 5 mW + Approx. 5 mW at 16 Ω (Approx. 1.5 mW + Approx. 1.5 mW at 16 Ω)* *For the customers in Europe

Optical digital output (optical output connector)

Output level: –21 - –15 dBm Wavelength: 630 - 690 nm at peak level

Power requirements

•Two Sony NH-10WM rechargeable batteries:

1.2 V DC × 2

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

•AC power adaptor (DC IN 4.5 V jack)

dB (measured by JEITA)

–2

Battery life*1 (approx. hours)

When you use the CD player on a flat and stable surface. When LIGHT mode and SOUND mode are set to “OFF.” Playing time varies depending on how the CD player is used.

When using two NH-10WM (charged for about

)

5 hours

G-PROTECTION

“G-PRO 1” “G-PRO 2”

Audio CD 25 23 ATRAC CD*344 44 MP3 CD*

When using external battery case (two alkaline batteries

Audio CD 55 50 ATRAC CD*386 86 MP3 CD*

33 33

)

“G-PRO 1” “G-PRO 2”

70 70

G-PROTECTION

AEP Model

UK Model

E Model

Australian Model

Chinese Model

Tourist Model

Model Name Using Similar Mechanism D-NE1 CD Mechanism Type CDM-3325ER2

Optical Pick-up Name DAX-25E

When using two NH-10WM and external battery case (two alkaline batteries

G-PROTECTION

“G-PRO 1” “G-PRO 2”

Audio CD 80 73 ATRAC CD*3130 130 MP3 CD*

*1 Measured value by the standard of JEITA (Japan

*2 Charging time varies depending on how the

*3 Recorded at 48 kbps *4 Recorded at 128 kbps *5 When using Sony alkaline batteries LR6 (SG)

103 103

Electronics and Information Technology Industries Association)

rechargeable batteries are used.

(produced in Japan)

— Continued on next page —

)

9-961-341-02

PORTABLE CD PLAYER

Sony Corporation

Personal Audio Company Published by Sony Engineering Corporation

D-NE800

Operating temperature

5°C - 35°C (41°F - 95°F)

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

Approx. 130 × 20.7 × 130 mm

⁄

⁄32× 5 1⁄8 in.)

Mass (excluding accessories)

Approx. 180 g (6.4 oz.)

Supplied accessories

AC power adaptor (1) Rechargable batteries (2) Battery carrying case (1) Headphones/earphoues (1) Remote control (1) Charging Stand (1) Carrying pouch (1) External battery case (1) CD-ROM (SonicStage Simple Burner) (1) User's guide for SonicStage Simple Burner (1) Operating instruction

US and foreign patents licensed from Dolby Laboratories.

Design and specifications are subject to change without notice.

1. SERVICING NOTE ·························································· 4

2. GENERAL ·········································································· 6

3. DISASSEMBLY

3-1. CABINET (UPPER) BLOCK ASSY ···························· 8 3-2. CD MECHANISM DECK (CDM-3325ER2),

UPPER LID BLOCK SECTION, MAIN BOARD······· 9 3-3. SWITCH BOARD······················································· 10 3-4. TURN TABLE MO T OR ASSY ·································· 10 3-5. OPTICAL PICK-UP (DAX-25E)································ 11

4. ELECTRICAL CHECKING········································· 12

5. DIAGRAMS······································································ 13

5-1. BLOCK DIAGRAM ··················································· 14 5-2. PRINTED WIRING BOARD

– MAIN BOARD (SIDE A) – ····································· 15 5-3. PRINTED WIRING BOARD

– MAIN BOARD (SIDE B) – ····································· 16 5-4. SCHEMATIC DIAGRAMS

– MAIN BOARD (1/4) –············································· 17 5-5. SCHEMATIC DIAGRAMS

– MAIN BOARD (2/4) –············································· 18 5-6. SCHEMATIC DIAGRAMS

– MAIN BOARD (3/4) –············································· 19 5-7. SCHEMATIC DIAGRAMS

– MAIN BOARD (4/4) –············································· 20 5-8. PRINTED WIRING BOARD

– SWITCH BOARD –················································· 21 5-9. SCHEMATIC DIAGRAMS

– SWITCH BOARD –················································· 22 5-10.IC PIN FUNCTION DESCRIPTIONS ······················· 25

6. EXPLODED VIEWS

6-1. OVERALL ASSY ······················································· 30 6-2. UPPER LID BLOCK SECTION ································ 31 6-3. CABINET (UPPER) BLOCK SECTION ··················· 32 6-4. CD MECHANISM DECK SECTION

(CDM-3325ER2)························································· 33

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

D-NE800

CAUTION

• INVISIBLE LASER RADIATION WHEN OPEN

• DO NOT STARE INTO BEAM OR VIEW DIRECTLY WITH OPTICAL INSTRUMENTS

• CLASS 1M INVISIBLE LASER RADIATION WHEN OPEN

• DO NOT VIEW DIRECTLY WITH OPTICAL INSTRUMENTS

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.

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.

On AC power adaptor

• Use only the AC power adaptor supplied. If your CD player is not supplied with the one, use the AC-E30HG AC power adaptor. Do not use any other AC power adaptor. It may cause a malfunction.

Polarity of the plug

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

• Connect the AC power adaptor to an easily accessible AC outlet. Should you notice an abnormality in the AC power adaptor, disconnect it from the AC outlet immediately.

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 .

D-NE800

SECTION 1

SERVICING 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 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 S820. (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 S820 with a screwdriv er 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 pickup is faulty. In this operation, the objective lens will move up and down 4 times along with inward motion for the focus search.

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

• RF signal P-to-P value: 0.45 to 0.65 Vp-p

– MAIN BOARD (SIDE B) –

IC601 FOK output yg pin

IC601

lever(lid detection)

S820

MAIN BOARD

Fig. 1 Method to push the S820

D-NE800

SERVICE MODE

The following confirmation can be performed when the Service Mode is set.

1. How to set the Service Mode.

To set the Service Mode, the following method is available.

1) Confirm the set is not powered on.

2) Confirm the following settings.

OPEN/CLOSE detect switch (S820) ........ OFF

Solder Land (SL825) ................................ OPEN

[HOLD] switch (S810)............................... OFF

G-PROTECTION FUNCTION ................ G-PRO1

AVLS FUNCTION ................................... OFF

3) Short the solder land SL824 (TEST) on the MAIN board.

4) Turn on the main power.

– MAIN BOARD (SIDE A) –

SL824 (TEST)

2. Operation when the Service Mode is set.

When the Service Mode becomes active, following messages are displayed onthe remote control LCD.

Microcomputer version display

1) Turn off the power.

2) Open the solder land SL824 (TEST) on the MAIN board.

Note : The solder should be removed clean.

VP094f

S820

(OPEN/CLOSE)

SL825

(OPEN)

D-NE800

SECTION 2

GENERAL

Locating the controls

CD player

This section is extracted from instruction manual.

1 Display 2 OPR (operation) lamp

Color of the lamp changes according to the type of music source being played. Red: Audio CD, Green: ATRAC3plus/ ATRAC3 file, Orange: MP3 file For some time after the CD is inserted, the lamp lights up in red, orange and green in turn. This lamp also functions as the HOLD lamp and the CHG (charge) lamp.

3 VOL (volume) + 4 i (headphones)/LINE OUT (OPTICAL)

jack Switch the function of the jack, using the menu.

5 HOLD switch (rear)

Slide the switch in the direction of the arrow to disable the buttons on the CD player.

button

Use to select a file, play mode, etc.

/–buttons

7 5-way control key

u: play/pause .:AMS >:AMS/fast forward x/CHG: stop/charge

DISPLAY/MENU: Use to

DISPLAY/ MENU

Push the control key toward u, >, . or x/CHG with your finger on

DISPLAY/MENU.

( group) + button

button

Use to select a file, play mode, etc.

( group) – button

qa EXT BATT (external battery)/

DC IN 4.5 V (external power input) jack

qs Terminals for the charging stand qd OPEN switch

Slide the switch to open the CD player lid.

*1 The button has a tactile dot. *2 Automatic Music Sensor

select menu items and enter the selection.

/rewind

(Continued)

Remote control

For details, see the pages in parentheses.

D-NE800

3 4

1 VOL (volume) +/– control

Turn to adjust the volume.

2 x (stop) button 3 Jog lever (.u/ENT >)

u (play/pause)/ENT (enter): Press during stop to start play, and press during play to pause play. When selecting menu items, press to enter the selection. Flick toward . or >: AMS, rewind, fast forward

4 Display 5

( group) +/– buttons

7 8

9 q;

6 Clip 7 HOLD switch

Slide the switch in the direction of the arrow (a yellow mark appears) to disable the buttons on the remote control.

8 DISPLAY button 9 P MODE/ q; SOUND button

Note

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

button

D-NE800

DISASSEMBLY

Note : Disassemble the unit in the order as shown below.

SET

CABINET (UPPER) BLOCK ASSY

SECTION 3

CD MECHANISM DECK (CDM-3325ER2), UPPER LID BLOCK SECTION, MAIN BOARD

TURN TABLE MOTOR ASSY

OPTICAL PICK-UP (DAX-25E)

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

3-1. CABINET (UPPER) BLOCK ASSY

eight screws

screw

four screws

SWITCH BOARD

upper lid block section

cabinet (upper) block assy

spring (L open)

groove

spring (R open)

screw (+BTP 1.4

remove the soldering

MAIN board

flexible board

(15P) (CN601)

CD mechanism deck

(CDM-3325ER2)

three insurators

flexible flat cable

(20P) (CN2001)

upper lid block section

connector

(CN401)

connector

(CN402)

spacer

3-2. CD MECHANISM DECK (CDM-3325ER2), UPPER LID BLOCK SECTION, MAIN BOARD

D-NE800

3-3. SWITCH BOARD

flexible flat cable

connector (CN2003)

knob (5 direction) sub assy

six screws

lid cover

SWITCH board

botton (control) sub assy

liquid crystal display pane

3-4. TURN TABLE MOTOR ASSY

three screws

(B1.7

turn table motor assy

(spindle) (M901)

3-5. OPTICAL PICK-UP (DAX-25E)

gear cover

gear B

sled spring

three screws

(B1.7

D-NE800

feed screw assy

motor assy

(sled) (M902)

optical pick-up

(DAX-25E)

D-NE800

Oscilloscope

(AC range)

+ –

MAIN board

TP746 (RF) TP701 (AGND)

2 k

Ω

SECTION 4

ELECTRICAL CHECKING

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

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 : DC4.5V in terminals (J401).

VOLUME button : Minimum AVLS FUNCTION : OFF HOLD switch : OFF G-PROTECTION FUNCTION : G-PRO1

Checking Location:

– MAIN BOARD (SIDE B) –

TP701

(AGND)

IC601

RF Level Check

Condition:

• Hold the set in horizontal state.

Connection:

Procedure:

1. Connect the oscilloscope to the test points TP746 (RF) and TP701 (AGND) 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

TP746

(RF)

RF level

0.45 to 0.65 Vp-p

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.

+ 28 hidden pages

Sony DNE-800 Service manual

TABLE OF CONTENTS

SERVICING NOTE

GENERAL

DISASSEMBLY

3-2. CD MECHANISM DECK (CDM-3325ER2), UPPER LID BLOCK SECTION, MAIN BOARD

3-3. SWITCH BOARD

3-4. TURN TABLE MOTOR ASSY

3-5. OPTICAL PICK-UP (DAX-25E)

ELECTRICAL CHECKING