4-5. SELECTING THE TEST MODE

There are 27 types of test modes as shown below. The groups can be switched by pressing the

=

and

=

buttons. After selecting the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

group to be used, press the

^“PROGRAM”

button. After setting a certain group, pressing the

=

and

=

buttons switches between

these modes.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Refer to “Group” in the table for details selected.

 

 

 

 

 

 

 

 

 

 

 

All items used for servicing can be treated using group S. So be carefully not to enter other groups by mistake.

 

 

 

 

 

 

 

 

 

 

 

Display

 

Contents

Mark

 

Group (*)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TEMP CHECK

Temperature compensation offset check

 

 

C

 

S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LDPWR CHECK

Laser power check

 

 

C

 

S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EF MO CHECK

Traverse (MO) check

 

 

C

 

S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EF CD CHECK

Traverse (CD) check

 

 

C

 

S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FBIAS CHECK

Focus bias check

 

 

C

 

S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S curve CHECK

S letter check

(X)

 

C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VERIFY MODE

Non-volatile memory check

(X)

 

C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DETRK CHECK

Detrack check

(X)

 

C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TEMP ADJUST

Temperature compensation offset adjustment

 

 

 

A

S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LDPWR ADJUST

Laser power adjustment

 

 

 

A

S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EF MO ADJUST

Traverse (MO) adjustment

 

 

 

A

S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EF CD ADJUST

Traverse (CD) adjustment

 

 

 

A

S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FBIAS ADJUST

Focus bias adjustment

 

 

 

A

S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EEP MODE

Non-volatile memory control

(X) (!)

 

 

 

 

 

D

 

 

 

 

 

 

 

 

 

 

 

 

 

MANUAL CMD

Command transmission

(X)

 

 

 

 

 

D

 

 

 

 

 

 

 

 

 

 

 

 

 

SVDATA READ

Status display

(X)

 

 

 

 

 

D

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ERR DP MODE

Error history display, clear

 

 

 

 

S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SLED MOVE

Sled check

(X)

 

 

 

 

 

D

 

 

 

 

 

 

 

 

 

 

 

 

 

Inpossible

No function

(X)

 

 

 

 

 

D

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ADJ CLEAR

Initialization of non-volatile memory of adjustment value

 

 

 

A

S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AG Set (MO)

Auto gain output level adjustment (MO)

 

 

 

A

S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AG Set (CD)

Auto gain output level adjustment (CD)

 

 

 

A

S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Iop Read

IOP data display

 

 

C

 

S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Iop Write

IOP data write

 

 

 

A

S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

INFORMATION

Microprocessing version display

 

 

C

 

S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CPLAY MODE

Continuous play mode

 

 

C

A

S

D

 

 

 

 

 

 

 

 

 

 

 

 

CREC MODE

Continuous recording mode

 

 

C

A

S

D

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Group (*)

 

 

 

 

 

 

 

 

 

 

 

 

 

C: Check

 

A: Adjust

 

 

 

 

S: Service

 

D: Develop

• For details of each adjustment mode, refer to “5. Electrical Adjustments”.

For details of “ERR DP MODE”, refer to “Self-Diagnosis Function” on page 2.

•If a different mode has been selected by mistake, press the p “PROGRAM” button to exit that mode.

•Modes with (X) in the Mark column are not used for servicing and therefore are not described in detail. If these modes are set accidentally, press the p“PROGRAM” button to exit the mode immediately. Be especially careful not to set the modes with (!) as they will overwrite the non-volatile memory and reset it, and as a result, the unit will not operate normally.

17

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Sony MDS-PC2 service manual Selecting the Test Mode, Group
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MDS-PC2 specifications

The Sony MDS-PC2 is a compact yet powerful digital MiniDisc recorder that was designed to bring studio-quality recording capabilities to the consumer level. Launched in the late 1990s, this device was particularly notable for its versatility and advanced audio technologies, making it a favorite among audiophiles and home studio enthusiasts alike.

One of the standout features of the MDS-PC2 is its ability to record and playback audio with exceptional clarity. It utilizes the MiniDisc format, which employs a magneto-optical technology that allows for higher-quality recordings compared to traditional cassette formats. The MDS-PC2 supports various audio bit rates, including standard Stereo at 292 kbps and long play modes, which double the recording time at the cost of some audio fidelity. This flexibility allows users to tailor their recording settings to their specific needs.

The MDS-PC2 features an intuitive interface, including an easy-to-read LCD display that shows vital information about the track, such as its name, length, and remaining recording time. The device is equipped with multiple input options, including optical and analog connections, facilitating seamless integration into any audio setup. The built-in digital signal processor (DSP) enhances the recording quality by minimizing background noise and distortion, providing a clean and crisp listening experience.

Another notable characteristic is the MDS-PC2's editing capabilities. Users can easily create custom playlists, erase tracks, and rearrange audio sequences with a few simple commands. The unit also supports fade-in and fade-out functionalities, allowing for smooth transitions between tracks. The flexibility in editing makes it a potent tool for podcasters, musicians, and anyone looking to produce high-quality audio content.

Portability is another key aspect of the Sony MDS-PC2. Its lightweight design and durable build make it easy to transport, catering to users who are frequently on the move. Battery operation options provide additional convenience for those who wish to use the recorder away from a power source.

In summary, the Sony MDS-PC2 combines innovative technology with user-friendly features, making it an excellent choice for anyone seeking an efficient and high-quality MiniDisc recorder. Its capability to produce superior audio recordings, coupled with its adaptability and portability, has solidified its place as an essential tool for audio recording and playback in various settings.
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