Sony MZ-N707 service manual Table of Contents, Disassembly, Diagrams, Exploded Views

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MZ-N707

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 current, Nickel Cadmium rechargeable battery, LR6 (SG) 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

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.

Case (Lower)

7

3-3.

Upper Panel Section

7

3-4. LCD Module, Upper Panel Sub Assy

8

3-5.

Mechanism Deck (MT-MZN707-177)

8

3-6.

Set Chassis (5192) Assy

9

3-7.

MAIN Board

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 –

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

7.EXPLODED VIEWS

7-1.

Upper Panel, Case (Lower) 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

8.

ELECTRICAL PARTS LIST

60

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Contents 873-458-01 SpecificationsMZ-N707 Flexible Circuit Board Repairing Table of ContentsDisassembly DiagramsSystem requirements Section Servicing NotesSection General Looking at the controlsDisassembly Flow Section DisassemblyUpper Panel Section Case LowerMechanism Deck MT-MZN707-177 LCD MODULE, Upper Panel SUB AssyMain Board Gear SA Screw M1.4 OP Service Assy LCX-5RHolder Assy Gear HA Releasing the Test Mode Section Test ModeSetting Method of Test Mode Operation in Setting the Test ModeN u a l Configuration of Test ModeManual Mode Transition Method in Manual Mode8 S 1 B Overall Adjustment ModeSELF-DIAGNOSIS Result Display Mode Self-Diagnosis Result Display Mode Setting MethodDescription of Indication History Reset the Error Display CodeDescription of Error Indication Codes Setting Method of Reset the Error Display CodeL a Y * * 0 Sound Skip Check Result Display ModeV r A t U l R s R y M p # # # # # #C O K * * 8 T O K * * 8S e t Section Electrical AdjustmentsS N V C C S O K ?R e c 1 * * 7 C d G n * * 3T F l g * * 7 R e c 0 * * 7U m * * 8 P b 2 * * 7P b 3 * * 7 P b 4 * * 7Power Supply Manual Adjustment L P W M * * 7H P W M * * 7 C p w H * * 7 P w m L * * 7P w m H * * 7 C p w L * * 7I t P w T T m p * * 0S e r E f P wMain Board Component Side IC501S y * * 0 S y 1S t CD and MO Overall Adjustment Items Adjustment Method of CD and MO Overall Adjustment ModeResume Clear Resume Clear Setting Method# # # S 0 0 0 S C l r 0Rewriting the Patch Data PreparationServicing Notes Pre-checkMZ-N707 MZ-N707 Block Diagram SERVO/USB Section Section DiagramsBlock Diagram Audio Section Block Diagram DISPLAY/KEY CONTROL/POWER Supply Section Lead Layouts Main Board Component Side Semiconductor LocationIC902 Components identified by mark 0or dotted F1VM Schematic Diagram Main Board 3/4 See page 42 for Waveforms KCT 22.7 ∝ s WaveformsIC302 TA2131FL EL IC Block Diagrams IC301 AK5354VT-E2IC501 SN761057A IC551 SC111258FCR2 IC601 XPC18A22AFCR2 IC901 XPC18A32FCR2 IC PIN Function Description SSB Data DRAMVSS0DVSS0 DVDD0REC OPR LED TrstVG CTL Aout SELREC KEY Vref MONVbus DET WK DETVrefr DavddVrefl AoutlIFVSS3 DVSS3DVDD3 IFVDD3Flashvss FlashvddUpper PANEL, Case Lower Section Section Exploded ViewsMT-MZN707-177 Main board section Chassis Section101 104 102 103 Main Board Section301 353 Section Main Electrical Parts ListMain XPC18A22AFCR2 Resistor OPEN/CLOSE Detect EMI Filter Card Operating Instruction Revision History

MZ-N707 specifications

The Sony MZ-N707, released in the early 2000s, is a remarkable portable MiniDisc player that represents a significant leap forward in digital audio technology. Known for its compact size and impressive sound quality, the MZ-N707 quickly became a favorite among music enthusiasts during its heyday.

One of the standout features of the MZ-N707 is its advanced ATRAC (Adaptive Transform Acoustic Coding) audio compression technology. This proprietary format allows for high-quality audio playback while minimizing file size, making it easier for users to store and carry their favorite tracks. The MiniDisc format supports a variety of bit rates, enabling listeners to choose between higher quality or more storage capacity based on their personal preferences.

The MZ-N707’s sleek and lightweight design is ideal for on-the-go listening, fitting comfortably in a pocket or bag. It boasts a clear LCD display that provides essential information such as track titles, playback time, and battery life, ensuring users stay informed while enjoying their music.

Battery life is another major selling point for the MZ-N707. With the ability to run for several hours on a single charge, this player is perfect for long journeys or extended listening sessions. Additionally, it uses a rechargeable lithium-ion battery, which was a welcome feature at the time, reducing the need for frequent battery replacements and promoting environmental sustainability.

Connectivity options also make the MZ-N707 an appealing choice. It comes with an integrated USB port for easy data transfer between the player and a computer, allowing users to upload their favorite audio tracks with minimal hassle. Furthermore, it supports various audio formats, enabling compatibility with a wide range of music sources.

The MZ-N707 is equipped with a range of customizable sound settings, including equalizer presets that allow users to tailor the audio output to fit their listening preferences. This flexibility enhances the user experience, making it suitable for different genres and environments.

In summary, the Sony MZ-N707 MiniDisc player features cutting-edge technology, portability, excellent battery life, and user-friendly options that appeal to audiophiles and casual listeners alike. Its legacy is a testament to Sony's commitment to innovation in portable audio solutions during the early 21st century. Whether for casual listening or serious music collection, the MZ-N707 remains a notable device in the history of digital audio.
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