SONY MZE909 - Service Manual Immediate Download

MZ-E909

SERVICE MANUAL

PORTABLE MINIDISC PLAYER

SPECIFICATIONS

US Model

AEP Model

E Model

Tourist Model

Model Name Using Similar Mechanism

NEW

MD Mechanism Type

MT-MZE909-173

Optical Pick-up Mechanism Type

LCX-4E

US and foreign patents licensed from Dolby

Laboratories Licensing Corporation

Ver 1.3 2002.06

with SUPPLEMENT-1

Audio playing system

MiniDisc digital audio system

Laser diode properties

Material: GaAlAs

Wavelength:

= 790 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.

Revolutions

Approx. 300 rpm to 2,700 rpm

Error correction

ACIRC (Advanced Cross Interleave Reed Solomon Code)

Sampling frequency

44.1 kHz

Coding

ATRAC (Adaptive TRansform Acoustic Coding)

ATRAC3: LP2

ATRAC3: LP4

Modulation system

EFM (Eight to Fourteen Modulation)

Number of channels

2 stereo channels

1 monaural channel

Frequency response

20 to 20,000 Hz ± 3 dB

Wow and Flutter

Below measurable limits

Outputs

Headphones/earphones: stereo mini-jack,

maximum output level

5 mW + 5 mW (US model) load impedance

16 ohms,

3 mW + 3 mW (Other models)

load impedance 32 ohms

Power requirements

Nickel metal hydride rechargeable battery

One NH-14WM(A) (supplied): 1.2V, 1,350 mAh

One LR6 (size AA) battery (not supplied)

External power jack (for the rechargeable

battery): Power rating 3V DC

Battery life 1)

(Unit: Approx. hours) (JEITA 2) )

Batteries

SP Stereo

LP2

LP4

(normal)

Stereo

Ni-MH

rechargeable

battery

NH-14WM(A)3)

LR6 (SG)

Sony Alkaline

dry battery 4)

LR6 (SG)4) and

100

122

145

NH-14WM(A)3)

1) Measured with the power save function on (see

"Preserving battery power") is on.

2) Measured in accordance with the JEITA (Japan

Electronics and Information Technology

Industries Association) standard (using a Sony

MDW-series Mini-disc).

3) With a fully charged battery

4) When using a Sony LR6 (SG) "STAMINA" alkaline dry

battery (produced in Japan).

Note

The battery operation may be shorter than that

specified, depending on the operating conditions,

the temperature of the location, and the type of

battery being used.

9-873-304-04

2002F0200-1

Sony Corporation

Personal Audio Company

Published by Sony Engineering Corporation

MZ-E909

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

1. SERVICING NOTE ...................................................... 3

2. GENERAL

Location and Function of Controls .................................... 4

3. DISASSEMBLY

3-1. "Lid ASSY, Upper" ..................................................... 5

3-2. Mechanism Deck ........................................................ 5

3-3. Bracket (R) ASSY ...................................................... 6

3-4. Main Board Sub ASSY, Bracket (L) ASSY,

SW Board ............... 6

3-5. Optical Pick-up ASSY ................................................ 7

4. TEST MODE .................................................................. 8

5. ELECTRICAL ADJUSTMENTS ........................... 12

6. DIAGRAMS

6-1. Block Diagram .......................................................... 17

6-2. Printed Wiring Boards Main Section (1/2) ......... 18

6-3. Printed Wiring Boards Main Section (2/2) ......... 19

6-4. Schematic Diagram Main Section (1/2) ............. 20

6-5. Schematic Diagram Main Section (2/2) ............. 21

6-6. Printed Wiring Boards Audio Section ................ 22

6-7. Schematic Diagram Audio Section ..................... 23

7. EXPLODED VIEWS

7-1. Main Section ............................................................. 26

7-2. Mechanism Deck Section ......................................... 27

8. ELECTRICAL PARTS LIST ................................... 28

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 PARTS WHOSE

PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN

SUPPLEMENTS PUBLISHED BY SONY.

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.

TABLE OF CONTENTS

* Replacement of CXD2671B-206GA (IC601) used in this set

requires a special tool.

CAUTION

Use of controls or adjustments or performance of procedures

other than those specified herein may result in hazardous

radiation exposure.

Dimensions

Approx. 71.1 x 77.6 x 12.5 mm (w/h/d) (2 7 / 8 x 3 1 /8 x 1 /2 in.)

(not including projecting parts and controls)

Mass

Approx. 49 g (1.8 oz) (the player only)

Supplied accessories

Headphones/earphones with a remote control

(1)

Battery charging stand (1)

AC power adaptor (for the supplied battery

charging stand)

Rechargeable battery (1)

Rechargeable battery carrying case (1)

Dry battery case (1)

Carrying pouch (1)

AC plug adaptor (1) (world model only)

US and foreign patents licensed from Dolby Laboratories.

Design and specifications are subject to change without notice.

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.

Ver 1.1 2001.11

MAIN BOARD SUB ASSY

· Audio board is supplied with main board sub ASSY.

· Audio board can't be moved away from main board.

Give a damage when take it off forcibly.

· The part that audio board overlap with main board can't be re-

paired.

MZ-E909

SECTION 1

SERVICING NOTE

When repairing this device with the power on, if you remove the main board, this device stops working.

In this case, you work without the device stopping by fastening the hook of the Open/Close detection switch (S809).

Open/Ciose detection switch (S809)

MZ-E909

SECTION 2

GENERAL

This section is extracted from

instruction manual.

Find the beginning of

the current track or

the previous track3)

Find the beginning

of the next track4)

Go backwards

while playing

Go forward

while playing

Pause

Remove the MD

2) You can turn off the beep sound. For more details, see "Turning off the beep sound."

3) If you turn the control towards . on the remote control (or press . on the player) during the

first track of the disc, the player goes to the beginning of the last track on the disc.

4) If you turn the control towards N> on the remote control (or press > N on the player) during

the last track of the disc, the player goes to the beginning of the first track on the disc.

5) If you open the lid, the playback will begin from the beginning of the first track (except when disc

information is stored to the personal disc memory or when group mode is on).

The MZ-E909 supports the newly developed DSP TYPE-R for ATRAC.

It thus allows you to enjoy TYPE-R high-quality sound from MDs recorded in SP stereo on TYPE-R-

equipped MD decks, etc.

Note

When removing the disc, make sure to press x first, and then slide OPEN.

Viewing the display window of the remote control

Track number Track name6) or elapsed time of the track

6) Appears only with MDs that have been electronically labeled.

· The player can play the track recorded by 2

× or 4 × long playing mode (LP2 or LP4). Normal stereo

playback, LP2 stereo playback, LP4 stereo playback or monaural playback is automatically selected to

match the audio source.

· The display on the remote control will turn off shortly after you press x.

Do this (Beeps2) in the headphones)

Turn the control towards . on the remote control once

(three short beeps). (Or press . on the player once.)

Turn the control towards . on the remote control repeatedly

(continuous three short beeps). (Or press . on the player

repeatedly.)

Turn the control towards N> on the remote control (two

short beeps).

Press > N on the player once.

Turn and hold the control towards . on the remote control.

Hold down . on the player.

Turn and hold the control towards N> on the remote control.

Hold down > N on the player.

Press X on the remote control (continuous short beeps).

Press X on the remote control again to resume play.

Press x, and then slide OPEN.5)

Playing an MD

Insert an MD.

Play an MD.

1N>

VOL+

VOL

> N

VOLUME +/

GROUP

Turn the control towards N> on the remote control (or press > N

on the player) to play the disc.

A short beep sounds in the headphones/earphones when using the remote control.

The LED flashes and then lights up.

Pull and turn VOL +/ on the remote control (or press VOLUME +/ on the

player) to adjust the volume.

The volume indicator appears in the display, allowing you to check the

volume level. After you adjust the volume, push back the control.

To stop play, press x.

Playback starts from the point you last stopped playing. To start playback from the

beginning of the disc, turn and hold the control towards N> on the remote control

(or hold down > N on the player) for 2 seconds or more.

1) The LED indicates the current operating status by the lighting up in the following colors.

When the battery power is exhausted, the LED starts flashing. For more details, see

"When to replace or recharge the battery."

LED color

Operating status

Red

Normal play (The LED lights up continuously)

Green

Group mode* (The LED lights up continuously)

Orange

Group skip mode* (The LED lights for about 5 seconds)

*For more details, see "Using the group function."

Insert an MD with the label side facing up, pushing the

MD to the direction of the arrow in the illustration.

Slide OPEN to open the lid.

Insert an MD.

Close the lid.

3 Color Info-LED1)

The Player

1 ./x/N> button

2 3 Color Info-LED

3 GROUP button

4 HOLD (Locking the control) switch

5 i (earphones) jack

6 OPEN switch

7 Terminals for charging stand/

dry battery case (at the bottom)

8 VOL +/ button

9 Battery compartment

The earphones with a remote

control

1 Headphones/earphones

2 Stereo mini plug

3 X (pause) button

4 SOUND button

5 RPT/ENT (Repeat/Enter) button

6 PLAYMODE button

7 DISPLAY button

8 x (stop) button*

9 Control (./N>)

q; Control VOL +/

Pull and turn to adjust the volume.

qa HOLD (Locking the control) switch

qs Display window

* The stop button also operates as the enter

button, depending on the function.

The display window of the remote

control

C D E

1 Track number display

2 Charactor information display

3 Disc indication

4 Alarm indication

5 Play mode indication

6 Battery level indication

7 SOUND indication

The battery charging stand

1 Terminals for charging

2 CHARGE lamp

3 DC IN (3V jack) (at the rear)

MZ-E909

SECTION 3

DISASSEMBLY

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

3-1. "LID ASSY, UPPER"

3-2. MECHANISM DECK

The equipment can be removed using the following procedure.

Screws , ES Lock

Screws , ES lock

Bracket (L) ASSY

Lid ASSY, upper

Motor flexible board

(CN551)

Claw

OP flexible board

(CN501)

Move claw away from

bracket (stop) ASSY

Screw (LL), step

Bracket (stop) ASSY

Panel, bottom

Bracket (R) ASSY

Mechanism deck

"Lid ASSY Upper"

Set

Optical pick-up ASSY

Mechsnism deck

Bracket (R) ASSY

Main board sub ASSY

Bracket (L) ASSY,

SW board

Ver 1.1 2001.11