IOP DATA RECORDING AND DISPLAY WHEN OPTICAL PICK-UP AND NON-VOLATILE MEMORY (IC171 OF BD (MD) BOARD) ARE REPLACED

The IOP value labeled on the optical pick-up can be recorded in the non-volatile memory. By recording the value, it will eliminate the need to look at the value on the label of the optical pick-up. When replacing the optical pick-up or non-volatile memory (IC171 of BD (MD) board), record the IOP value on the optical pick-up according to the following procedure.

Record Precedure:

1.When the power ON, press the 1/u button while pressing the p(MD) button and r(REC) button together.

2.Press the =0/MD/CD/TUNING – button or)+/MD/CD/TUNING + button to display “[Service]”, and press the ENTER/ YES “R” button.

3.Press the =0/MD/CD/TUNING – button or)+/MD/CD/TUNING + button to display “ lop. Write”, and press the ENTER/ YES “R” button.

4.The display becomes “Ref=@@@.@” (@ is an arbitrary number) and the numbers which can be changed will blink.

5.Input the IOP value written on the optical pick-up.

To select the number : Press the =0/MD/CD/TUNING – button or)+/MD/CD/TUNING + button.

To select the digit : Press the SYNC REC button.

6.When the ENTER/YES “R” button is pressed, the display becomes “Measu=@@@.@” (@ is an arbitrary number).

7.As the adjustment results are recorded for the 6 value. Leave it as it is and press the ENTER/YES “R” button.

8.“Complete!” will be displayed momentarily. The value will be recorded in the non-volatile memory and the display will become “Iop Write”.

9.Press the REPEAT STEREO/MONO button to complete. “Standby” will be displayed.

Display Precedure:

1.When the power ON, press the 1/u button while pressing the p(MD) button and r(REC) button together.

2.Press the =0/MD/CD/TUNING – button or)+/MD/CD/TUNING + button to display “[Service]”, and press the ENTER/ YES “R” button.

3.Press the =0/MD/CD/TUNING – button or)+/MD/CD/TUNING + button to display “lop.Read”.

4.“@@.@/##.#” is displayed and the recorded contents are displayed.

@@.@ : indicates the Iop value labeled on the pick-up.

##.# : indicates the Iop value after adjustment

5.To end, press the SYNC REC button or MENU/NO “R” button to display “Iop Read”. Then press the REPEAT STEREO/MONO button to display “Standby”.

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Sony HCD-MD373 service manual Record Precedure

HCD-MD373 specifications

The Sony HCD-MD373 is a compact mini audio system that offers an impressive blend of sound quality, versatility, and advanced technology, making it an ideal choice for audio enthusiasts and casual listeners alike. One of the standout features of the HCD-MD373 is its MiniDisc recorder/player, a legacy technology that allows users to record high-quality audio onto MiniDiscs, providing an alternative to traditional CDs and cassettes. This feature is particularly appealing for those looking to capture live music or create personalized playlists.

Another notable aspect of the HCD-MD373 is its integrated CD player, which supports a variety of formats including CD, CD-R, and CD-RW. This versatility means that users can enjoy their favorite albums without the hassle of switching devices. The audio system also includes a built-in AM/FM tuner, enabling users to easily tune into their favorite radio stations and enjoy live broadcasts.

The HCD-MD373 is equipped with a powerful amplifier that delivers impressive sound output, complemented by its two-way speaker system. The speakers provide a rich audio experience with clear highs and deep lows, making it suitable for various music genres, from classical to contemporary. The system also features a bass boost function that enhances low-frequency sounds, allowing for a more immersive listening experience.

In terms of connectivity, the HCD-MD373 offers multiple inputs and outputs, including audio line-in, headphone jacks, and a digital optical output. These features make it easy to connect external devices such as MP3 players, smartphones, or even home theater systems. Additionally, the audio system supports various playback options, including shuffle and repeat modes, providing enhanced flexibility for users.

The design of the HCD-MD373 is sleek and modern, with a compact form factor that allows it to fit seamlessly into any living space. Its user-friendly interface, complete with an LCD display, makes it easy to navigate and control playback settings. Overall, the Sony HCD-MD373 is a testament to Sony's commitment to quality audio experiences, combining innovative features, robust technology, and elegant design into a single, powerful audio system. Whether enjoying a quiet evening at home or hosting a gathering with friends, the HCD-MD373 is sure to deliver satisfying sound and performance.