Sony MZ-N1 service manual Table of Contents, Disassembly, Diagrams, Exploded Views

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MZ-N1

CAUTION

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

On power sources

Use house curre nt, nikel metal hyd ride rechargeable battery, LR6 (S G) battery, or car

battery.

For use in your house: For the s uppl ied battery charging s ta nd, use the AC power adaptor

s uppl ied with this recorder. Do not use an y other AC power adaptor s ince it ma y cause the recorder to malfuncti on.

Polarity of the plug

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.

 

TABLE OF CONTENTS

 

1.

SERVICING NOTES

4

2.

GENERAL

5

3.DISASSEMBLY

3-1.

Disassembly Flow

6

3-2.

Bottom Panel Assy

7

3-3.

Upper Panel Section

7

3-4.

LCD Module, Upper Panel Assy

8

3-5.

MAIN Board Section

8

3-6.

Battery Case Assy, MAIN Board

9

3-7.

MD Mechanism Deck (MT-MZN1-171),

 

 

Chassis Assy

9

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

4.

TEST MODE

13

5.

ELECTRICAL ADJUSTMENTS

19

6.DIAGRAMS

6-1.

Block Diagram – SERVO/USB Section

30

6-2.

Block Diagram – AUDIO Section

31

6-3.

Block Diagram – DISPLAY/KEY CONTROL/

 

 

POWER SUPPLY Section

32

6-4.

Note for Printed Wiring Board and

 

 

Schematic Diagrams

33

6-5.

Printed Wiring Board

 

 

– MAIN Board (Component Side)

34

6-6.

Printed Wiring Board

 

 

– MAIN Board (Conductor Side)

35

6-7.

Schematic Diagram – MAIN Board (1/4)

36

6-8.

Schematic Diagram – MAIN Board (2/4)

37

6-9.

Schematic Diagram – MAIN Board (3/4)

38

6-10.

Schematic Diagram – MAIN Board (4/4)

39

6-11. IC Pin Function Description

46

7.EXPLODED VIEWS

7-1.

Upper Panel Section

53

7-2.

Bottom Panel Section

54

7-3.

Chassis Section

55

7-4.

Main Board Section

56

7-5. MD Mechanism Deck Section (MT-MZN1-171)

57

8.

ELECTRICAL PARTS LIST

58

3

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Contents MZ-N1 SpecificationsMZ-N1 Battery lifeFlexible Circuit Board Repairing Table of ContentsDisassembly DiagramsServicing Notes SectionRecorder Section GeneralDisassembly Flow MZ-N1 Section DisassemblyUpper Panel Section Bottom Panel AssyMain Board Section LCD MODULE, Upper Panel AssyMD Mechanism Deck MT-MZN1-171, Chassis Assy Battery Case ASSY, Main BoardGear SA Screw M1.4 OP Service Assy LCX-5RDC Motor Sled M602 Holder AssyOver write head up/down Releasing the Test Mode MZ-N1 Section Test ModeSetting Method of Test Mode Operation in Setting the Test ModeA n u a l Configuration of Test ModeManual Mode Transition method in manual mode011 0 5 9 a 0 011 C 6 8 S 0F F J 0 011 0 6 3 B 0Description of indication history Reset the Error Display CodeDescription of error indication codes Setting method of reset the error display code000 JOG+OK 000 P * * RPush 000 JOG+RPLAY SET OKRMC OK ResOK? ResetMZ-N1 Section Electrical Adjustments ResNV CC862 V1 dat AbcdGnDfct 861 V1 num874 V6 dat 873 V6 numVLpwmH Power Supply Manual AdjustmentVclPWM VLpwmLSetTmp RECpwLRECpwH VdpwmIC301 WritPwOfstOK AssyAssy11 OfstResume CC 000 *** NGCD OK MO OKRewriting the patch data PreparationServicing Notes Pre-checkMZ-N1 MZ-N1 Block Diagram SERVO/USB Section MZ-N1 Section DiagramsBeep Mute HP/L Block Diagram Audio SectionBlock Diagram DISPLAY/KEY CONTROL/POWER Supply Section Lead Layouts Main Board Semiconductor LocationIC301 See page 41 for IC Block Diagrams Schematic Diagram Main Board 1/4Flah 40S8 Schematic Diagram Main Board 3/4 See page 40 for WaveformsVCC1 VCC2 22.7 ∝ s WaveformsIC302 AN17020A-VB IC Block Diagrams IC301 AK5354VT-E2IC501 SN761057A IC551 SC111258FCR2 IC601 XPC18A22AFCR2 IC901 XPC18A32AFCR2 IC PIN Function Description SSB Data DRAMVSS0DVSS0 DVDD0Aout SEL KDITrst VG CTLWK DET LCD RSTVref MON Vbus DETVsiosc VdioscOsci OscoIFVDD3 LrckDVSS3 DVDD3Flashvdd XOEXWE EVAChassis section Exploded ViewsNot supplied Bottom Panel Section107 110 102 103 102104 Chassis Section101 108 106155 154 158 159 153 151 156 152157 MD Mechanism Deck Section MT-MZN1-171 Resistors Main Section Electrical Parts ListMain Diode MZ-N1 MainRES-CHIP Short 503 501 502505 504Revision History
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MZ-N1 specifications

The Sony MZ-N1, a revered model in the world of portable mini-disc players, holds a special place in the hearts of audiophiles and casual listeners alike. Launched as part of Sony's celebrated mini-disc lineup, it exemplifies the innovative spirit of its time with a sleek, compact design and a suite of features that appealed to music lovers.

At the heart of the MZ-N1 is its support for both standard and high-speed recording, allowing users to transfer their favorite tracks from CDs or other sources quickly and efficiently. The unit employs a unique mechanism known as the ATRAC codec, which optimizes audio compression while maintaining sound quality. This technology enables users to fit numerous tracks onto a single mini-disc, transforming how music was stored and played back.

One of its standout features is the inclusion of SonicStage software, which serves as a companion for managing music libraries. Users can edit playlists, transfer tracks, and organize their music collection seamlessly. The player supports various formats, including MP3, making it versatile in its playback capabilities. Additionally, the MZ-N1 is equipped with a backlit display, facilitating easy navigation even in low-light conditions.

Another notable characteristic of the MZ-N1 is its impressive battery life, offering hours of continuous playback on a single charge. This longevity made it an attractive option for users on the go, ensuring that their music would last through long commutes or road trips without interruption.

Furthermore, the MZ-N1 features a headphone amplifier that enhances sound quality, providing a richer audio experience. The player boasts a range of sound customizations, allowing users to adjust equalizer settings to suit their preferred listening style.

In terms of design, the MZ-N1 is compact, lightweight, and sturdy, making it highly portable. The simple, intuitive interface ensures that users can navigate through functions with ease, enhancing the overall listening experience.

Overall, the Sony MZ-N1 stands as a remarkable blend of technology and user-friendly design, showcasing the innovation of the early 2000s portable audio solutions. Its combination of sound quality, flexibility, and battery efficiency has solidified its status as a classic in the realm of mini-disc players. While modern digital music players have largely eclipsed this technology, the legacy of the MZ-N1 endures in the memories of those who experienced its audio marvels.