5. SELECTING THE TEST MODE

There are 31 types of test modes as shown below. The groups can be switched by turning the [ÊÊÊÊÊÊÊÊAMSÊÊÊÊÊÊÊÊ]- ± knob. After selecting the group to be used, press the [YES] button. After setting a certain group, turning the [ÊÊÊÊÊÊÊÊAMSÊÊÊÊÊÊÊÊ]- ± knob switches between these modes. Refer to “Group” in the table for details can be selected.

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

Display

No.

Contents

Mark

 

Group (*)

 

TEMP CHECK

C01

Temperature compensation offset check

 

C

 

S

 

 

 

 

 

 

 

 

 

LDPWR CHECK

C02

Laser power check

 

C

 

S

 

EF MO CHECK

C03

Traverse (MO) check

 

C

 

S

 

EF CD CHECK

C04

Traverse (CD) check

 

C

 

S

 

 

 

 

 

 

 

 

 

FBIAS CHECK

C05

Focus bias check

 

C

 

S

 

S curve CHECK

C06

S letter check

(X)

C

 

 

 

 

 

 

 

 

 

 

 

VERIFY MODE

C07

Non-volatile memory check

(X)

C

 

 

 

DETRK CHECK

C08

Detrack check

(X)

C

 

 

 

 

 

 

 

 

 

 

 

TEMP ADJUS

C09

Temperature compensation offset adjustment

 

 

A

S

 

 

 

 

 

 

 

 

 

LDPWR ADJUS

C10

Laser power adjustment

 

 

A

S

 

EF MO ADJUS

C11

Traverse (MO) adjustment

 

 

A

S

 

 

 

 

 

 

 

 

 

EF CD ADJUS

C12

Traverse (CD) adjustment

 

 

A

S

 

FBIAS ADJUS

C13

Focus bias adjustment

 

 

A

S

 

 

 

 

 

 

 

 

 

EEP MODE

C14

Non-volatile memory control

(X) (!)

 

 

 

D

 

 

 

 

 

 

 

 

MANUAL CMD

C15

Command transmission

(X)

 

 

 

D

SVDATA READ

C16

Status display

(X)

 

 

 

D

 

 

 

 

 

 

 

 

ERR DP MODE

C17

Error history display, clear

 

 

 

S

 

SLED MOVE

C18

Sled check

(X)

 

 

 

D

 

 

 

 

 

 

 

 

ACCESS MODE

C19

Access check

(X)

 

 

 

D

 

 

 

 

 

 

 

 

0920 CHECK

C20

Outermost circumference check

(X)

 

 

 

D

HEAD ADJUST

C21

Head position check

(X)

 

 

 

D

 

 

 

 

 

 

 

 

CPLAY 2MODE

C22

Same functions as CPLAY MODE

(X)

 

 

 

D

CREC 2MODE

C23

Same functions as CREC MODE

(X)

 

 

 

D

ADJ CLEAR

C24

Initialization of non-volatile memory of adjustment value

 

 

A

S

 

 

 

 

 

 

 

 

 

AG Set (MO)

C25

Auto gain output level adjustment (MO)

 

 

A

S

 

AG Set (CD)

C26

Auto gain output level adjustment (CD)

 

 

A

S

 

 

 

 

 

 

 

 

 

Iop Read

C27

IOP data display

 

C

 

S

 

Iop Write

C28

IOP data write

 

 

A

S

 

 

 

 

 

 

 

 

 

530 ******

C29

Microprocessing version display

 

C

 

S

 

 

 

 

 

 

 

 

 

CPLAY MODE

C30

Continuous play mode

 

C

A

S

D

CREC MODE

C31

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 [MENU/NO] button to release 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 acciden- tally, press the [MENU/NO] button to release 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.

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Sony MDS-JE630 service manual Selecting the Test Mode, Display Contents Mark Group
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MDS-JE630 specifications

The Sony MDS-JE630 is a compact and versatile MiniDisc recorder that was launched in the late 1990s, showcasing Sony's commitment to portable digital audio technology. Renowned for its superior sound quality, the MDS-JE630 is an exceptional choice for audiophiles and professionals alike, offering a user-friendly interface and a range of advanced features.

One of the main highlights of the MDS-JE630 is its MDLP (MiniDisc Long Play) technology, which allows for extended recording time without sacrificing audio quality. This feature enables users to record up to 148 minutes of stereo sound on a single MiniDisc, making it an invaluable tool for those requiring longer recording sessions, such as musicians or radio broadcasters.

The MDS-JE630 is equipped with ATRAC (Adaptive Transform Acoustic Coding) compression algorithms, ensuring that audio files retain high fidelity even when compressed. The device features a 20-bit digital-to-analog converter, providing remarkable sound clarity and depth. Users can expect crisp highs and robust lows, making every listening experience engaging and immersive.

Ease of use is another hallmark of the MDS-JE630. The front panel includes an intuitive layout, featuring a large LCD display that clearly shows current track information, time elapsed, and other playback indicators. Additionally, the unit offers various playback modes such as normal, repeat, and shuffle, allowing users to customize their listening experience.

The recording process on the MDS-JE630 is seamless, thanks to its one-touch recording feature. Users can easily initiate recordings from connected sources, including CD players or turntables, via the device's multiple inputs, such as line-in and optical digital inputs. This adaptability makes it a versatile component for any audio setup, whether for home studios or live performances.

Moreover, the MDS-JE630 incorporates a variety of editing functions, including track arranging, dividing, and merging, providing users with the ability to create perfectly curated audio collections. The device also supports a wide range of MiniDisc formats, ensuring compatibility with existing media.

In conclusion, the Sony MDS-JE630 stands out as a premier MiniDisc recorder, offering a blend of advanced technology, user-friendly design, and high-quality playback. Its innovative features and commitment to sound quality have made it a popular choice for music professionals and enthusiasts, solidifying its reputation as a reliable audio recording solution for years to come.
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