SONY MZN505 - Service Manual Immediate Download

SERVICE MANUAL

PORTABLE MINIDISC RECORDER

US Model

Canadian Model

AEP Model

UK Model

E Model

Australian Model

Chinese Model

SPECIFICATIONS

MZ-N505

US and foreign patents licensed from Dolby

Laboratories.

Continued on next page

Model Name Using Similar Mechanism

MZ-N707

Mechanism Type

MT-MZN707-177

Optical Pick-up Name

LCX-5R

Ver 1.2 2003. 08

9-873-459-03

Sony Corporation

2003H05-1

Personal Audio Company

2003.08

Published by Sony Engineering Corporation

· OpenMG, "MagicGate", "MagicGate Memory Stick", "Memory Stick",

VAIO,MusicClip and their logos are trademarks of Sony Corporation.

· "WALKMAN" is a trademark of Sony Corporation.

· Microsoft,Windows,Windows NT and Windows Media are trademarks

or registered trademarks of Microsoft Corporation in the United States

and/or other countries.

· IBM and PC/AT are registered trademarks of International Business

Machines Corporation.

· Macintosh is a trademark of Apple Computer,Inc.in the United States

and/or other countries.

· All other trademarks are trademarks of their respective owners. TM and

® marks are omitted in this manual.

MD Recorder

Audio playing system

MiniDisc digital audio system

Laser diode properties

Material: GaAlAs MQW

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 lens surface on the optical

pick-up block with 7 mm aperture.)

Recording and playback time

When using MDW-80

Maximum 160 min. in monaural

Maximum 320 min. in stereo

Revolutions

Approx. 380 rpm to 2,700 rpm (CLV)

Error correction

ACIRC (Advanced Cross Interleave Reed

Solomon Code)

Sampling frequency

44.1 kHz

Sampling rate converter

Input: 32 kHz/44.1 kHz/48 kHz

MZ-N505

General

Power requirements

Sony AC Power Adaptor (supplied) connected

at the DC IN 3 V jack (country model in

parentheses):

Nickel Cadmium rechargeable battery NC-

WMAA (except US and Canadian models supplied)

LR6 (size AA) alkaline battery (not supplied)

Dimensions

Approx. 81

× 27.9 × 74.4 mm (w/h/d) (31/4 ×

11/8

× 3 in.) without projections.

Mass

Approx. 104 g (3.7 oz) the recorder only

Design and specifications are subject to change

without notice.

Supplied accessories

NC-WMAA Nickel Cadmium rechargeable ba

(except US and Canadian models) (1)

ttery

AC power adaptor (1)

Headphones/earphones (1)

Remote control (except US and Canadian models) (1)

tical cable (except US and Canadian models) (1)

USB cable (1)

Battery carrying case (except US and Canadian models) (1)

Carrying case with a belt clip (European model only) (1)

Minidisc (blank) (US and Canadian models only) (1)

D-ROM (1)*

Do not play a CD-ROM on an audio CD player.

Battery life 1)

When recording 2)

(Unit: approx.hours)(JEITA3))

1) The battery life may be shorter due to operating

conditions, the temperature of the location, and

varieties of batteries.

2) When you record, use a fully charged

rechargeable battery. Recording time may

differ according to the alkaline batteries.

3) Measured in accordance with the JEITA (Japan

Electronics and Information Technology

Industries Association) standard.

Batteries

Stereo

LP2

Stereo

LP4

Stereo

NC-WMAA

Nickel

Cadmium

rechargeable

battery4)

4) When using a 100% fully charged rechargeable

battery.

7.5

LR6 (SG)

Sony alkaline

dry battery5)

5) When using a Sony LR6 (SG) "STAMINA "

alkaline dry battery (produced in Japan).

91 3

When playing

(Unit: approx.hours)(JEITA1))

Batteries

Stereo

LP2

Stereo

LP4

Stereo

NC-WMAA

Nickel

Cadmium

rechargeable

battery2)

LR6 (SG)

Sony alkaline

dry battery3)

1) Measured in accordance with the JEITA

(Japan Electronics and Information

Technology Industries Association) standard.

2) When using a 100% fully charged

rechargeable battery.

3) When using a Sony LR6 (SG) "STAMINA "

alkaline dry battery (produced in Japan).

Coding

ATRAC (Adaptive TRansform Acoustic

Coding)

AT RAC3 -- LP2/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 limit

Inputs

Line in: stereo mini-jack, minimum input level

49 mV

Optical (Digital) in: optical (digital) mini-jack

Outputs

i: stereo mini-jack, maximum output level

5 mW + 5 mW, load impedance 24 ohm (US model only)

5 mW + 5 mW, load impedance 16 ohm (except US model)

120 V AC, 60 Hz (USA, Canada and

Taiwan)

230 V AC, 50/60 Hz (Continental Europe)

240 V AC, 50 Hz (Australia)

220 V AC, 50 Hz (China)

230 - 240 V AC, 50 Hz (UK and Hong

Kong)

110/220 V AC, 60 Hz (Korea)

100 - 240 V AC, 50/60 Hz (Other countries)

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 PUB-

LISHED BY SONY.

ATTENTION AU COMPOSANT AYANT RAPPORT

À LA SÉCURITÉ!

LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE 0

SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE

DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ

DE FONCTIONNEMENT. NE REMPLACER CES COM-

POSANTS QUE PAR DES PIÈCES SONY DONT LES

NUMÉROS SONT DONNÉS DANS CE MANUEL OU

DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.

Ver 1.1

MZ-N505

TABLE OF CONTENTS

SERVICING NOTES ............................................... 4

GENERAL ................................................................... 5

DISASSEMBLY

3-1. Disassembly Flow ...........................................................

3-2. Case (Lower) ...................................................................

3-3. Case (Upper) Section ......................................................

3-4. LCD Module, Case (Upper) Sub Assy ...........................

3-5. Mechanism Deck (MT-MZN707-177) ...........................

3-6. Set Chassis (5188) Assy ..................................................

3-7. MAIN Board ...................................................................

3-8. OP Service Assy (LCX-5R) ............................................ 10

3-9. Holder Assy ..................................................................... 11

3-10. DC Motor (Sled) (M602) ................................................ 11

3-11. DC SSM18B Motor (Spindle) (M601),

DC Motor (Over Write Head Up/Down) (M603) .......... 12

TEST MODE .............................................................. 13

ELECTRICAL ADJUSTMENTS ......................... 19

DIAGRAMS

6-1. Block Diagram SERVO/USB Section ...................... 32

6-2. Block Diagram AUDIO Section ............................... 33

6-3. Block Diagram DISPLAY/KEY CONTROL/

POWER SUPPLY Section ........................................... 34

6-4. Note for Printed Wiring Board and

Schematic Diagrams ....................................................... 35

6-5. Printed Wiring Board

MAIN Board (Component Side) ............................. 36

6-6. Printed Wiring Board

MAIN Board (Conductor Side) ............................... 37

6-7. Schematic Diagram MAIN Board (1/4) .................. 38

6-8. Schematic Diagram MAIN Board (2/4) .................. 39

6-9. Schematic Diagram MAIN Board (3/4) .................. 40

6-10. Schematic Diagram MAIN Board (4/4) .................. 41

6-11. IC Pin Function Description ........................................... 48

EXPLODED VIEWS

7-1. Case Section .................................................................... 55

7-2. Chassis Section ............................................................... 56

7-3. MAIN Board Section ...................................................... 57

7-4. Mechanism Deck Section-1 (MT-MZN707-177) ........... 58

7-5. Mechanism Deck Section-2 (MT-MZN707-177) ........... 59

ELECTRICAL PARTS LIST ............................... 60

CAUTION

Use of controls or adjustments or performance of procedures

other than those specified herein may result in hazardous ra-

diation exposure.

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.

Flexible Circuit Board Repairing

· Keep the temperature of the soldering iron around 270 °C dur-

ing 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.

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.

On power sources

·Use house current, Nickel Cadmium

rechargeable battery, LR6 (size AA) battery,

or car battery.

·For use in your house: Use the AC power

adaptor supplied with this recorder. Do not

use any other AC power adaptor since it may

cause the recorder to malfunction.

Polarity of the

plug

MZ-N505

NOTES ON HANDLING THE OPTICAL PICK-UP

BLOCK OR BASE UNIT

The laser diode in the optical pick-up block may suffer electro-

static break-down because of the potential difference generated

by the charged electrostatic load, etc. on clothing and the human

body.

During repair, pay attention to electrostatic break-down 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

Never look into the laser diode emission from right above when

checking it for adjustment. It is feared that you will lose your sight.

NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK

(LCX-5R)

The laser diode in the optical pick-up block may suffer electro-

static break-down easily. When handling it, perform soldering

bridge to the laser-tap on the flexible board. Also perform mea-

sures against electrostatic break-down sufficiently before the op-

eration. The flexible board is easily damaged and should be handled

with care.

OPTICAL PICK-UP FLEXIBLE BOARD

SECTION 1

SERVICING NOTES

· In performing the repair with the power supplied to the set, re-

moving the MAIN board causes the set to be disabled.

In such a case, fix a convex part of the open/close detect switch

(S806 on MAIN board) with a tape in advance.

Handle the FLEXIBLE board (overwrite head) with care, as it

has been soldered directly to the MAIN board.

In repairing the component side of MAIN board, connect the

FLEXIBLE board (overwrite head) and the MAIN board with

the lead wires in advance.

laser-tap

·The shipment data will be cleared when the NV is reset. There-

fore, change the NV adjusted values following the Change of

NV Adjusted Values immediately after the NV was reset. (See

page 19)

·The set having the microcomputer version 1.100 to 1.300 re-

quires the patch data in the nonvolatile memory (IC804) to be

rewritten using the application, when the MAIN board was re-

placed. (See page 29)

On the set having the microcomputer version 1.400 or later, re-

writing the patch data is unnecessary.

· Replacement of CXD2677-205GA (IC801) used in this set re-

quires a special tool.

System requirements

· IBM PC/AT or Compatible (The software does not run on Macintosh.)

CPU: MMXTM Pentium® 233 MHzor higher (Pentium® II 400 MHzor higher is

recommended.)

Hard disk drive space: 60 MB or more (The amount of necessary space depends on

the version of the Windows OS or the size of your audio files.)

RAM: 64 MB or higher (128 MB or higher is recommended for Windows® XP Home

Edition/Windows® XP Professional.)

CD-ROM drive (capable of digitalplayback by WDM)

Sound Board

USB port (supports USB 2.0 Full Speed (previouslyUSB 1.1))

· Operating System: Windows® 98/Windows® 98 Second Edition/Windows® 2000

Professional/Windows® Me/Windows® XP Home Edition/Windows® XP

Professional (manufacturer installed)

The NTFS format of Windows® 2000 Professional, Windows® XP Home Edition, or

Windows® XP Professional (manufacturer-installed)is supported only when used

withthe standard (factory) settings.

This software is not supported by the following environments.

Windows® 95, Windows® NT, or other versions of Windows® NT (such as Server)

An environment that is an upgrade of the original manufacturer-installed

operating system, as in the followingexamples:

Windows® 3.1/Windows® 95 t Windows® 98 (or Windows® 98 Second Edition/

Windows® Me)

Windows® Me/Windows® 2000 Professionalt Windows® XP

Multi-bootenvironmentwithWindows ® 2000 (or Windows® XP) and Windows®

98 (or Windows® 98 Second Edition/

Windows ® Me)

· Display: High(16bit) Color or more (800

× 480 dot or more)

· Internet access: for Web registration and EMD services

· Windows

· Internet access: for sfortware upgrades and CDDB2 use. (US and Canadian models)

Media Player (version 7.0 or higher) installed for playingWMAfiles.

Notes

· Trouble-free operation is not assured withina multiple-monitorenvironment.

· We do not assure trouble-free operation for all computers satisfying the system requirements.

· Trouble-free operation is not guaranteed followingthe self-conducted upgrade of home-built

PCs or operating systems.

· We do not assure trouble-free operation of the system suspend, sleep, or hibernationfunctionon

all computers.

· For details, refer to "Net MDHelp " of the online help.

Note

The optical digitaloutputconnector (on computers providedwithone) may be disabled

duringplayback for the protection of copyrights.

Notes on using OpenMG Jukebox with Windows

2000/Windows XP

If your computer is Windows 2000 Professional, Windows XP Home Edition, or

Windows XP Professional, please be aware of the following before instaling OpenMG

Jukebox.

1 With Windows 2000 Professional, you must log on as "Administrators" (or with the

user name "Administrator") to install OpenMG Jukebox.

2 With Windows XP Home Edition or Windows XP Professional, you must log on

with user name "Computer Administrator" to install OpenMG Jubebox. To check

whether a user name has the attribute of "Computer Administrator" or not, go to

[Control Panel] - [User Account].

Notes on using OpenMG Jukebox with Windows XP/

Windows Me

If Windows XP/Windows Me is installed in your computer, and you perform the

"System Restore" function of the Windows "System Tools," the songs managed by

OpenMG Jukebox may become corrupted and rendered unplayable.

Therefore, before executing "System Restore," back up the songs using "OpenMG

Jukebox Backup Tool" first.

Then, after the "System Restore" function is finished, restore the songs using

"OpenMG Jukebox Backup Tool" to ensure the integrity and reliability of song

playback.

For more information about backup, refer to the online Help for OpenMG Jukebox.

Note

When songs become unplayable by executing "System Restore," an error dialog box may be

displayed. In this case, follow the displayed messages.

case (upper)

MAIN board

tape

S806

FLEXIBLE board

(over write head)

Ver 1.2

MZ-N505

SECTION 2

GENERAL

This section is extracted from

instruction manual.

Looking at the controls

The recorder

A OPEN button

B END SEARCH button

C X (pause) button

D DC IN 3V jack

E VOL +/ button

The VOL + button has a tactile dot.

F N (play) button

The N button has a tactile dot.

./> (search/AMS) button

x (stop)/CHARGE button

G Display window

H GROUP/CANCEL button

I T MARK/REC button

J HOLD switch

K USB connecting jack

L Battery compartment

M LINE IN (OPTICAL) jack

N MENU/ENTER button

O i (headphones/earphones) jack

CHARGE

The display window of the recorder

A MONO (monaural) indication

B LP mode indication

C Mega bass indication

D Disc indication

Shows that the disc is rotating for

recording, playing or editing an MD.

E Level meter

Shows the volume of the MD being

played or recorded.

F REC REMAIN/REMAIN (remaining

time/tracks) indication

Lights up along with the remaining

time of the track, the remaining time

of the MD, or the remaining number

of tracks.

G SYNC (synchro-recording) indication

H REC indication

Lights up while recording. When

flashing, the recorder is in record

standby mode.

I Battery indication

Shows approximate battery condition.

J Time display

K Disc name/track name indication

Lights up when labeling a disc or a

track.

L Group indication

Lights up when group mode is on.

M Character information display

Displays the disc and track names,

error messages, track numbers, etc.

N Play mode indication

Shows play mode of the MD.

Digital MEGA BASS

LP 2 . 4

C D E

The headphones/earphones with a remote control

A ./>/N (search/AMS/play) ·

>/. button

B x (stop) · ENTER button

C X (pause) · CAPS button

D EDIT button

E VOL +/ button

F Headphones/earphones

Can be replaced with optional

headphones/earphones.

G HOLD switch

Slide to lock the controls of the

remote control.

H T MARK button

I DELETE button