MZ-NF610

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 metal hydride rechargeable battery, LR6 (size AA) battery, or car battery.

For use in your house: Do not use any other AC power adaptor since it may cause the recorder to malfunction.

Polarity of the plug

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.

The recorder is not disconnected from the AC power source (mains) as long as it is connected to the wall outlet, even if the recorder itself has been turned off.

If you are not going to use this recorder for a long time, be sure to disconnect the power supply (AC power adaptor, dry battery, rechargeable battery, or car battery cord). To remove the AC power adaptor from the wall outlet, grasp the adaptor plug itself; never pull the cord.

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 ûC 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 ûC 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 ûC .

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, Button (Control)

8

3-5.

MAIN Board

8

3-6.

Mechanism Deck (MT-MZN710-177)

9

3-7.

Set 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 Motor (Over Write Head Up/Down) (M603),

 

 

DC SSM18B Motor (Spindle) (M601)

12

4.

TEST MODE

13

5.

ELECTRICAL ADJUSTMENTS

19

6.DIAGRAMS

6-1.

Block Diagram

39

6-2. Note for Printed Wiring Board and

 

 

Schematic Diagrams

40

6-3. Printed Wiring Board

 

 

Ð MAIN Board (Side A) Ð

41

6-4. Printed Wiring Board

 

 

Ð MAIN Board (Side B) Ð

42

6-5.

Schematic Diagram Ð MAIN Board (1/4) Ð

43

6-6.

Schematic Diagram Ð MAIN Board (2/4) Ð

44

6-7.

Schematic Diagram Ð MAIN Board (3/4) Ð

45

6-8.

Schematic Diagram Ð MAIN Board (4/4) Ð

46

6-9.

IC Pin Function Description

52

7.EXPLODED VIEWS

7-1.

Case Section

58

7-2.

Chassis Section

59

7-3.

MAIN Board Section

60

7-4. Mechanism Deck Section-1 (MT-MZN710-177)

61

7-5. Mechanism Deck Section-2 (MT-MZN710-177)

62

8.

ELECTRICAL PARTS LIST

63

3

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Sony MZ-NF610 service manual Flexible Circuit Board Repairing, On power sources

MZ-NF610 specifications

The Sony MZ-NF610 is a standout portable mini disc player and recorder that epitomizes the innovation synonymous with Sony in the early 2000s. Released as part of the Net MiniDisc series, it offered a convenient way to manage and enjoy music on the go. While the popularity of digital downloads and streaming services has eclipsed physical media formats, the MZ-NF610 remains a nostalgic piece of technology that reflects a unique era in personal audio.

One of the main features of the MZ-NF610 is its large storage capacity, leveraging the MiniDisc format to offer up to 1GB of data storage on each disc. This allows music enthusiasts to store multiple albums or hours of music in a compact form. The device supports LP2 and LP4 recording modes, which not only provide flexibility in recording quality but also enhance the total recording time, making it ideal for long journeys or extensive music libraries.

The MZ-NF610 showcases SONY’s exceptional ATRAC3 encoding technology, which compresses audio files while preserving sound quality. This technology enables users to transfer music from CD directly to MiniDisc with impressive fidelity. Additionally, with its USB connection, the MZ-NF610 provides a seamless way to transfer music files from a computer, further enhancing its usability.

An important characteristic of the MZ-NF610 is its design. This model is compact, lightweight, and equipped with an easy-to-use interface, making it perfect for portability. The ergonomically designed controls simplify navigation through tracks and menus, while the backlit LCD display ensures visibility in various lighting conditions.

Battery life is another notable feature of the MZ-NF610, with the ability to run for long periods on a single charge. The player is powered by a rechargeable lithium-ion battery, which enhances its eco-friendliness and eliminates the need for disposable batteries.

Overall, the Sony MZ-NF610 is a remarkable combination of portability, audio quality, and user convenience. It highlights Sony’s commitment to pushing the boundaries of personal audio technology, making it a cherished collector's item for those who appreciate the charm of MiniDisc players. Even in an age dominated by digital streaming, the MZ-NF610 stands as a testament to the enduring appeal of physical media and the nostalgic experience it provides.