Sony MZ-NF610 service manual Adjustment Method of Chgvhigh item number

Page 23

Adjustment Method of CHGV_HIGH (item number: 756)

MZ-NF610

Adjustment Method of CHGI_HIGH (Charge current) (item number: 758)

Set LCD display

Set LCD display

7 56

AD **

 

 

**: Adjusted value

 

Note: Remove the rechargeable battery.

1.Connect a digital voltmeter to the BATT + and BATT – on the MAIN board, and adjust [VOL +] key (voltage up) or [VOL --]key (voltage down) so that the voltage becomes 1.80 ± 0.015V.

digital voltmeter

MAIN board

BATT +

BATT –

7 58

AD **

 

 

**: Adjusted value

 

Note: Remove the rechargeable battery.

Connect the resistor (10 ) (0.5%) between terminals of BATT + and BATT –.

1.Connect a digital voltmeter to the BATT + and BATT – on the MAIN board, and adjust [VOL +] key (voltage up) or [VOL --]key (voltage down) so that the voltage becomes 1.40 ± 0.015V.

digital voltmeter

MAIN board

2.Press the X key on the set or the key on the remote commander to write the adjusted value.

BATT + BATT –

10 (0.5%)

Adjustment and Connection Location: MAIN board (see page 24)

Adjustment Method of CHGI_LOW (Charge current) (item number: 757)

Set LCD display

7 57

AD **

 

 

**: Adjusted value

 

Note: Remove the rechargeable battery.

Connect the resistor (47 ) (0.5%) between terminals of BATT + and BATT –.

1.Connect a digital voltmeter to the BATT + and BATT – on the MAIN board, and adjust [VOL +] key (voltage up) or [VOL --]key (voltage down) so that the voltage becomes 1.41 ± 0.015V.

digital voltmeter

MAIN board

2.Press the X key on the set or the key on the remote commander to write the adjusted value.

Adjustment and Connection Location: MAIN board (see page 24)

BATT + BATT –

47 (0.5%)

2.Press the X key on the set or the key on the remote commander to write the adjusted value.

Adjustment and Connection Location: MAIN board (see page 24)

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Contents MZ-NF610 MZ-NF610 Battery lifeOn power sources Flexible Circuit Board RepairingSystem requirements Section Servicing NotesMZ-NF610 Looking at controls Section GeneralDisassembly Flow Section DisassemblyUpper Panel Section Case LowerMain Board LCD Module, Button ControlSet Chassis Assy Mechanism Deck MT-MZN710-177Screw M1.4 Pull off lead screw Rack spring OP Service Assy LCX-5RDC Motor Sled M602 Holder AssyGear HA Releasing the Test Mode Section Test ModeSetting Method of Test Mode Operation in Setting the Test ModeTransition Method in Manual Mode Configuration of Test ModeManual Mode Self-Diagnosis Result Display Mode Setting Method Overall Adjustment ModeSelf-Diagnosis Result Display Mode Description of Indication History Reset the Error Display CodeDescription of Error Indication Codes Setting Method of Reset the Error Display CodeSetting Method of Key Check Mode Sound Skip Check Result Display ModeSetting Method of Sound Skip Check Result Display Mode Cause of Sound Skip ErrorSET OK Section Electrical Adjustments Adjustment and Connection Location Main board Digital voltmeter Main board TP1909 REGO1 TP1311 GND Adjustment Method of Chgvlow item number Adjustment Method of Vreclow X2 speed item numberAdjustment Method of Vrechigh Head Motor item number Adjustment Method of Vrecmiddle X4 speed item numberAdjustment Method of Chgilow Charge current item number Adjustment Method of Chgvhigh item numberAdjustment Method of Chgihigh Charge current item number Adjustment/checking and Connection Location Key Power Supply Adjustment Auto Item FeedConfiguration of power supply adjustment auto item feed Checking method Laser Power CheckConfiguration of Overall Adjustment Mode ConnectionOverall Adjustment Mode Title Display CD and MO Overall Adjustment Items Adjustment Method of CD and MO Overall Adjustment ModeOverall Adjustment error message MO overall adjustment items Remuse Clear Resume Clear Setting MethodRewriting the Patch Data Rewriting the Patch Data at Replacement of Main BoardPreparation Pre-checkMZ-NF610 MZ-NF610 MZ-NF610 Rewriting the NV values How to get the application NVWriter for NV values rewritingRewriting the NV values MZ-NF610 MZ-NF610 MZ-NF610 Block Diagram Section DiagramsSurface WaveformsSemiconductor Location Printed Wiring Board Main Board Side a Uses unleaded solderSide B Printed Wiring Board Main Board Side B Uses unleaded solderXPC18A22AEPR2 Schematic Diagram Main Board 2/4 Ioad HP OUT IC361 TA2131FL EL IC Block Diagrams IC302 AK5354VT-E2IC501 SN761058AZQLR IC601 XPC18A22AEPR2 IC701 SC111258EPR2 IC901 SC901580EPR2 Pin No Pin Name Description IC Pin Function DescriptionKrck Chgadsel Uosci DVSS0 Msak Case Section SectionExploded Views MT-MZN710-177 Not supplied Main board section Chassis Section101 105 106 102 103 107 104 Main Board Section311 Mechanism Deck MT-MZN710-177 301302 308 306 303307 304 305 309 310 352 351 Mechanism Deck MT-MZN710-177 358 357 365356 359 355 354Main Electrical Parts ListTantalum Fuse SMD R312 RES-CHIP 16W R315 218-990-11 Metal Revision History

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.