Flow of Self-diagnosis Result Display mode operation:

MZ-NH700/NHF800

Ver 1.1

8.KEY CHECK MODE

This mode is used for key check.

***

1 ####

[VOL +] key

 

[VOL --] key

 

 

 

***

N ####

[VOL +] key

 

[VOL --] key

 

 

 

***

N1####

[VOL +] key

 

[VOL --] key

 

 

 

***

N2####

[VOL +] key

 

[VOL --] key

 

 

 

***

R_####

The first error

The last error

One error before the last

Two error before the last

Total recording time

Operation of The Key Check Mode

1.Enter the test mode (Display Check mode).

2.Press the [GROUP] key to activate the Key Check mode where the LCD displays as shown below.

Display

11*

$$$$$$ ##

*” : Remote commander (0: with, 4: without)

$$$$$$” : Pressed key name.

When remote commander key is pressed, display becomes as “r$$$$$”.

When the jog dial is turned, it displays “JOG+ X” or “JOG- X” (“X” is number of 1 to 3). If the jog dial is turned four click, it displays “JOG+OK” or JOG-OK”.

##” : Key voltage of remote commander. (Hexadecimal number)

3.When all keys (*1) check is OK on the main unit, it displays as follows.

Display

888

SET OK ##

 

[VOL +] key

 

[VOL --] key

 

 

 

 

 

 

7-2. Error Code of The Self-Diagnosis Result Display Mode

Error code

Description

 

 

00

No error

 

 

01

Attempt to access an abnormal address

 

 

02

High temperature detected

 

 

03

Focus error (no change)

 

 

04

Abnormal rotation of disc

 

 

05

Fault of disc discriminate

 

 

06

Error of access loop (no change)

 

 

07

Error of access loop (with change)

 

 

08

Could not read address

 

 

09

Focus error (with change)

 

 

12

Could not read data with SYNC

 

 

13

TOC address data error

 

 

32

Focus error, ABCD offset error

 

 

33

Tracking error, offset error

 

 

34

Tracking error, X1 tracking error, offset error

 

 

7-3. Clear The Total Recording Time

After replacing the optical pick-up, clear the total recording time.

1.Enter the test mode (Display Check mode).

2.Press the > key to activate the Self-Diagnosis Result Display mode.

3.Press the [VOL--]key once to display the total recording time indication.

4.Press the X key and display “ClrOK?”.

5.Press the X key again to display “RecT 0” and clear the total recording time.

When all keys (*1, 2) check is OK on the remote commander, it displays as follows.

Display

888

RMC OK ##

*1) Turn the jog dial four click clockwise and counterclockwise to jog test is OK.

*2) [RADIOON/OFF] key (MZ-NHF800) is not included in this check.

4.When all keys check are OK both the main unit and the remote commander, it display backs to the Display Check mode automatically.

5.To quit the Key Check mode, open the lid and return to the Display check mode.

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Sony NHF800 service manual N1####, N2####, $$$$$$ ##, 888

NHF800 specifications

The Sony NHF800 is a remarkable addition to Sony's range of high-fidelity audio devices, designed to elevate the listening experience for audiophiles and casual listeners alike. Blending cutting-edge technology with user-friendly features, the NHF800 stands out as a versatile and powerful audio solution.

At the heart of the NHF800 is its advanced audio circuitry, which employs high-resolution audio technology. This ensures that music playback is not only accurate but also retains the depth and richness of the original recordings. Supporting various audio formats, including DSD, PCM, and even compressed formats, this device caters to diverse musical tastes while maintaining superior sound quality.

One of the standout features of the Sony NHF800 is its compatibility with both wired and wireless connections. With Bluetooth capabilities, users can stream music effortlessly from smartphones, tablets, or computers, while the high-resolution audio ensures that streamed content does not compromise on quality. Additionally, the device is equipped with Wi-Fi support, allowing for easy access to streaming services and internet radio, further broadening the audio horizons for users.

The NHF800 also boasts a built-in DAC (Digital-to-Analog Converter) that promotes enhanced audio performance. This DAC converts digital signals into analog with precision, resulting in a cleaner, more detailed sound output. The device supports a wide dynamic range, allowing listeners to experience their music as intended by the artists.

Moreover, the NHF800 features an intuitive user interface that simplifies navigation through music libraries and settings. The color display provides clear visuals, making it easy to browse albums, playlists, and streaming options. The device's ergonomic design ensures that it is not only visually appealing but also comfortable to use, whether at home or on the go.

Further enhancing the listening experience, the device incorporates noise-canceling technologies, allowing users to enjoy their music without external interruptions. This feature is particularly beneficial for users in noisy environments, such as public transport or busy urban settings.

In summary, the Sony NHF800 is a well-rounded high-fidelity audio device that merges advanced technology with usability. Its high-resolution audio capability, extensive connectivity options, and user-friendly design make it an excellent choice for anyone looking to elevate their listening experience. Whether at home or out and about, the NHF800 ensures that every note resonates with clarity and detail, making music come alive like never before.