Sony MZ-NF610 service manual Laser Power Check, Connection, Checking method

Page 26

MZ-NF610

Laser Power Check

Note: If result of measurement of the laser power does not satisfy the specification, either replace the OP (optical pick-up unit) or check whether the laser circuit block is working correctly.

When the result of laser power measurement does not satisfy the specification even though the laser circuit block is confirmed to be working correctly, replace the OP (optical pick-up unit).

• Connection

laser

power meter

optical pick-up objective lens

• Checking method

1. Select the manual mode of test mode (see page 14), and set the

laser power checking mode (item number 010).

10.Press the > key, and set the laser MO (X4 speed) write check mode (item number 014).

Set LCD display

014 # # # S * *

address

adjusted value

11.Check that the laser power meter reading is 5.93 ± 0.71mW.

12.Press the xCANCEL/CHG key to quit the manual mode, and activate the test mode (display check mode).

Overall Adjustment Mode

• Configuration of Overall Adjustment Mode

Set LCD display

0 10

L a s e r

2.Press the . key continuously until the optical pick-up moves to the most inward track.

3.Open the cover and set the laser power meter on the objective lens of the optical pick-up.

4.Press the > key, and set the laser MO read check mode (item number 011).

Set LCD display

011 # # # S * *

address

adjusted value

5.Check that the laser power meter reading is 0.800 ± 0.10 mW.

6.Press the > key, and set the laser CD read check mode (item number 012).

Set LCD display

012 # # # S * *

address

adjusted value

7.Check that the laser power meter reading is 0.910 ± 0.11 mW.

8.Press the > key, and set the laser MO (X2 speed) write check mode (item number 013).

Set LCD display

013 # # # S * *

address

adjusted value

9. Check that the laser power meter reading is 4.95 ± 0.59 mW.

[END SEARCH]

 

x key

Overall adjustment mode

 

(Title display)

Continuing

overall adjustment

. key

CD overall

 

adjustment

> key

MO overall

 

 

adjustment

VOL+ key

Electrical

 

offset

 

adjustment

 

Temperature

key

correction

and

 

 

Power supply

 

adjustment

 

auto item feed

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Contents MZ-NF610 Battery life MZ-NF610Flexible Circuit Board Repairing On power sourcesSection Servicing Notes System requirementsSection General MZ-NF610 Looking at controlsSection Disassembly Disassembly FlowCase Lower Upper Panel SectionLCD Module, Button Control Main BoardMechanism Deck MT-MZN710-177 Set Chassis AssyOP Service Assy LCX-5R Screw M1.4 Pull off lead screw Rack springHolder Assy DC Motor Sled M602Gear HA Operation in Setting the Test Mode Section Test ModeSetting Method of Test Mode Releasing 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 Setting Method of Reset the Error Display Code Reset the Error Display CodeDescription of Error Indication Codes Description of Indication HistoryCause of Sound Skip Error Sound Skip Check Result Display ModeSetting Method of Sound Skip Check Result Display Mode Setting Method of Key Check ModeSET OK Section Electrical Adjustments Adjustment and Connection Location Main board Digital voltmeter Main board TP1909 REGO1 TP1311 GND Adjustment Method of Vrecmiddle X4 speed item number Adjustment Method of Vreclow X2 speed item numberAdjustment Method of Vrechigh Head Motor item number Adjustment Method of Chgvlow 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 Connection Laser Power CheckConfiguration of Overall Adjustment Mode Checking methodOverall 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 Resume Clear Setting Method Remuse ClearPre-check Rewriting the Patch Data at Replacement of Main BoardPreparation Rewriting the Patch DataMZ-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 Section Diagrams Block DiagramWaveforms SurfacePrinted Wiring Board Main Board Side a Uses unleaded solder Semiconductor LocationPrinted Wiring Board Main Board Side B Uses unleaded solder Side BXPC18A22AEPR2 Schematic Diagram Main Board 2/4 Ioad HP OUT IC Block Diagrams IC302 AK5354VT-E2 IC361 TA2131FL ELIC501 SN761058AZQLR IC601 XPC18A22AEPR2 IC701 SC111258EPR2 IC901 SC901580EPR2 IC Pin Function Description Pin No Pin Name DescriptionKrck Chgadsel Uosci DVSS0 Msak Case Section SectionExploded Views Chassis Section MT-MZN710-177 Not supplied Main board sectionMain Board Section 101 105 106 102 103 107 104311 Mechanism Deck MT-MZN710-177 301302 308 306 303307 304 305 309 310 354 Mechanism Deck MT-MZN710-177 358 357 365356 359 355 352 351Electrical Parts List MainTantalum 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.
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