MZ-NH700/NHF800

 

Ver 1.1

SECTION 5

 

ELECTRICAL ADJUSTMENTS

1.PRECAUTIONS FOR ADJUSTMENT

1.Adjustment must be done in the test mode only. After adjusting, release the test mode. A key having no particular description in the text, indicates a set key.

2.Use the following tools and measuring instruments.

Digital voltmeter

Regulated dc power supply (two sets)

Thermometer (using the Temperature Correction)

Laser power meter

CD adjustment disc TDYS-1 (Part No. : 4-963-646-01)

MD1/HiMD1 hybrid adjustment disc MDW-74/GA1 (Part No. : 4-229-747-01)

Hi-MD3 adjustment disc HMD1GSDJ (Part No. : 7-819-098-37) *1

Remote commander in accessories (with LCD)

AC adapter in accessories

Ni-MH rechargeable battery (NH-7WMAA) in accessories (full charged)

PC application software for test mode

“TestMode_Enter_For_900_800_700_600_600D_Ver***.exe” *2

USB cable

*1) Hi-MD3 adjustment disc (HMD1GSDJ) is consumable. Therefore if it is used 400 times, exchange it for a new.

*2) Use the newest version every time.

Copy the whole folder of this program to your PC. Operating system: Windows 2000, Windows XP

When using this application, the SonicStage Ver. 2.0 or 2.1 is necessary, and install it in your PC in advance.

3.Unless specified otherwise, supply DC 1.5 V from battery terminals (CL431: BATT+, CL432: BATT–).

2.ADJUSTMENT SEQUENCE

Adjustment must be done with the following order.

Adjustment order:

1.Entering the test mode

2.Initialize the adjustment value

3.Setting the temperature correction value

4.Power supply voltage adjustment

5.Charge function check

6.Laser power check

7.Setting the adjustment values

8.Servo Overall adjustment

9.Resume clear

10.Releasing the test mode

3.ADJUSTMENT OF THE EACH ITEM 3-1. Entering The Test Mode

Refer to the “SECTION 4. TEST MODE”.

3-3. Setting The Temperature Correction Value

Procedure:

1.In the test mode (Display Check mode), press the [VOL+] key to enter the Manual mode.

2.Press the > key twice, and press the [VOL+] key twice to

display as follows.

Display

130 Temp

3.Press the > key once to select the item number 0131 and display as follows.

Display

131

###S**

adjustment value (hexadecimal)

4.Measure the ambient temperature.

5.Adjust with [VOL+]/[VOL--]keys so that the adjusted value

(hexadecimal value) becomes the ambient temperature. (example: 25 °C = 19h)

6.Press the X key to write the adjusted value.

7.Press the x key four times and back to the Display Check mode.

3-4. Power Supply Voltage Adjustment

Adjustment must be done with the following order.

3-4-1. Setting

Procedure:

1.Enter the test mode (Display Check mode), and make sure that the power supply voltage is 1.2 V.

2.Press the [VOL+] key to enter the Manual mode.

3.Press the [VOL+] key twice to display as follows.

Display

2

POWER

4.Press the > key once, press the [VOL+] key once, and press the > key once again to display as follows.

Display

3-2. Initialize The Adjustment Value

Procedure:

1.In the test mode (Display Check mode), press the [VOL--]key to enter the Overall adjustment mode.

2.Press the [T MARK] key and display “911 ResOK?”.

3.Press the X key to display “911 Reset!” and initialize the adjustment values.

4.Press the x key and back to Display Check mode.

210 PwrAdj

5.Repeat the next procedures (3-4-2. PwrAdj Adjustments), and adjust all contents of “table 3-4-1. PwrAdj Specifications”.

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Sony NHF800 service manual Electrical Adjustments, Temp, 131 ###S, PwrAdj

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.