LASER POWER CHECK

• Connection

laser power meter

Optical pick-up objective lens

digital voltmeter

MAIN board

TP (+)

TP (–)

• Checking Method

1.Select the manual mode of test mode (see page 16), and set the laser power adjusting mode (item number 010).

Set LCD display

010Laser

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 N > key, and set the laser MO read adjustment mode (item number 011).

Set LCD display

011###S**

###: Address

**: Adjusted value

5.Check that the laser power meter reading is 0.81 ± 0.08 mW.

6.Check that the voltage both ends (TP (+) and TP (–)) of resis- tor R521 at this time is below 44 mV.

7.Press the N > key, and set the laser CD read adjustment mode (item number 012).

Set LCD display

012###S**

###: Address

**: Adjusted value

8.Check that the laser power meter reading is 0.97 ± 0.10 mW.

9.Check that the voltage both ends (TP (+) and TP (–)) of resis- tor R521 at this time is below 44 mV.

10.Press the N > key, and set the laser MO write adjustment mode (item number 013).

Set LCD display

013###S**

###: Address

**: Adjusted value

MZ-S1

11.Check that the laser power meter reading is 4.95 ± 0.50 mW.

12.Check that the voltage both ends (TP (+) and TP (–)) of resis- tor R521 at this time is below 80 mV.

13.Press the x key to quit the manual mode, and activate the test mode (display check mode).

Checking and Connection Location: MAIN board (See page 26)

25

Page 24 Page 26
Page 25
Image 25
Sony MZ-S1 service manual 011 ###S, 012 ###S, 013 ###S, Laser Power Check
Page 24 Page 26

MZ-S1 specifications

The Sony MZ-S1 is a portable MiniDisc recorder that reflects Sony's commitment to innovation in the realm of digital audio technology. Launched in the early 2000s, this model stood out for its sophisticated design and advanced features, catering to audiophiles and casual listeners alike. The MZ-S1 was particularly popular for its ability to record audio in a compact format, making it an attractive option for those who desired high-quality sound in a portable package.

One of the defining characteristics of the MZ-S1 is its use of MiniDisc technology, which allowed users to record and store audio with impressive sound quality. It leveraged Sony’s ATRAC (Adaptive Transform Acoustic Coding) compression, ensuring that recordings maintained clarity while efficiently utilizing disk space. The MZ-S1 supported various recording modes, including SP (Standard Play) and LP (Long Play), providing flexibility in terms of sound quality and recording duration. This capability made the MZ-S1 an ideal choice for musicians looking to record rehearsals, as well as for consumers wanting to create custom playlists.

The MZ-S1 features a sleek, compact design that embodies the portability and aesthetics of early 2000s electronics. Its user-friendly interface is complemented by an LCD display that provides essential information such as track numbers, remaining recording time, and battery life. Additionally, the MZ-S1 was equipped with various connectivity options, including a line-in for direct recording from external sources and a headphone jack with volume control for private listening.

Powering the device was a rechargeable battery, which allowed for extended use without the need for constant replacements. The MZ-S1 also featured a durable construction, appealing to users who needed a reliable audio recorder for travel or outdoor use. This model proved particularly popular among students, journalists, and music enthusiasts, as its compact size and high-quality output made it an indispensable tool for capturing audio on the go.

Moreover, the MZ-S1 allowed users to edit tracks directly on the device, facilitating seamless transitions between recordings. With its blend of innovative features, robust technology, and portable design, the Sony MZ-S1 remains a noteworthy piece of audio equipment, encapsulating an era of digital audio evolution that paved the way for modern music consumption.
Top Page Image Contents