MZ-NF810/NF810CK

Adjustment Method of CD and MO Overall Adjustment Mode

1.Set the test mode (see page 13).

2.Press the .T key or press [VOL --]key to activate the overall adjustment mode.

Remote commander LCD display

000 Assy11

3.Insert CD disc in the set, and press the .T key to set the CD overall adjustment mode. Automatic adjustments are made.

Remote commander LCD display

XXX CD RUN

XXX: Item number for which an adjustment is being executed.

4.In case of CD overall adjustment NG, readjust from the NV reset (see page 18), The temperature correction (see page 18) may be omitted.

Remote commander LCD display

000 *** NG

**: NG item number.

5. If OK through the CD overall adjustments, then perform MO overall adjustments.

Remote commander LCD display

000 CD OK

6. Insert MO disc in the set, and press the > key to set the MO

t

overall adjustment mode. Automatic adjustments are made.

Remote commander LCD display

XXX MO RUN

XXX: Item number for which an adjustment is being executed.

7.In case of MO overall adjustment NG, readjust from the NV reset (see page 18). The temperature correction (see page 18) may be omitted.

Remote commander LCD display

000 *** NG

**: NG item number.

8.If OK through the MO overall adjustments, press the xCANCEL/CHG key to return to the test mode and ter- minate the overall adjustment mode.

Remote commander LCD display

000 MO OK

• Overall Adjustment error message

The following message will be displayed if adjustment procedure is mistaken in the CD and MO overall adjustment.

Message

Display timing

Description

 

 

 

 

During CD/MO/DISC

 

CLOSE!

automatic distinction

DISC is not inserted.

 

overall adjustment

 

 

 

 

 

 

• CD overall adjustment is not

 

During MO/DISC

completed in the MO overall

Set CD!

automatic distinction

adjustment.

overall adjustment

• CD and MO overall

 

 

During offset adjustment

adjustment is not completed

 

 

in the offset adjustment.

 

 

 

 

 

MO overall adjustment is not

Set MO!

During offset adjustment

completed in the offset

 

 

adjustment.

 

 

 

 

During CD/MO/DISC

Temperature correction

NoTmp!

automatic distinction

(item number 015)

 

overall adjustment

is not finished.

 

 

 

 

During CD/MO/DISC

Charge voltage adjustments

NoChg!

automatic distinction

(item number 755 and 756)

 

overall adjustment

are not finished.

 

 

 

CD and MO Overall Adjustment Items

1. CD overall adjustment items

Item No.

Description

 

 

761

VC,VR power supply H/L selection

 

 

300

HPIT setting . servo OFF

 

 

561

SLED inward movement

 

 

562

SLED outward movement

 

 

High reflection electrical offset adjustment

 

 

312

Laser ON . Focus UP . vc correction

 

 

ALFA offset adjustment

 

 

313

IJ offset adjustment

 

 

314

FE offset adjustment

 

 

HPIT adjustment

 

 

320

Focus servo ON

 

 

324

TE offset adjustment 1

 

 

321

TE gain adjustment

 

 

328

TWPP gain adjustment

 

 

324

TE offset adjustment 1

 

 

332

TE offset adjustment 2

 

 

330

Tracking servo ON

 

 

336

ABCD gain adjustment

 

 

337

KF gain correction

 

 

338

RF gain adjustment

 

 

344

FCS gain adjustment

 

 

345

TRK gain adjustment

 

 

521

Two-axis sensitivity (inner position)

 

 

522

Two-axis sensitivity (outer position)

 

 

300

HPIT setting . servo OFF

 

 

25

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Image 25
Sony MZ-NF810 service manual Assy11, 000 *** NG, Cd Ok, Mo Ok

MZ-NF810 specifications

The Sony MZ-NF810 is a notable entry in the portable digital music player market, primarily aimed at users who seek high-quality audio playback and advanced recording capabilities. This MiniDisc player is celebrated for its compact design, making it an ideal companion for on-the-go listeners who value both audio quality and portability.

One of the standout features of the MZ-NF810 is its support for ATRAC compression technology. ATRAC, short for Adaptive Transform Acoustic Coding, provides a means to compress audio files while still maintaining impressive sound fidelity. This technology was specifically designed to optimize audio for the MiniDisc format, allowing users to enjoy longer playtimes without sacrificing sound quality. The MZ-NF810 can store up to 40 hours of music on a single battery charge, a significant advantage for audiophiles and casual listeners alike.

The device also boasts a high-resolution LCD display, providing crucial information about the currently playing track, including title, artist, and remaining battery life. Navigation is smooth and user-friendly, allowing users to access their music collections with ease. In addition, the MZ-NF810 supports USB connectivity, enabling users to transfer music and files directly from their computers. This feature eliminates the need for additional software, streamlining the process of loading music onto the device.

An important aspect of the MZ-NF810 is its recording capabilities. The player allows users to record live audio directly onto MiniDiscs, providing the freedom to capture concerts, lectures, or personal notes. The addition of various recording modes, including long-play options, enhances its utility for users who need diverse functionality.

Sound quality is further augmented with features such as Dynamic Bass Boost and a five-band equalizer, allowing users to tailor their listening experience to their preferences. The MZ-NF810 also supports various audio formats, adding to its versatility as a personal audio device.

Lastly, the MZ-NF810's sleek and lightweight design makes it not only aesthetically pleasing but also comfortable to carry, making it a practical choice for those who lead active lifestyles. In summary, the Sony MZ-NF810 MiniDisc player stands out for its audio quality, recording features, and user-friendly design, catering to music enthusiasts who demand both performance and portability in their listening experience.