Sony MDS-PC2 Section Test Mode, Precautions for USE of Test Mode, Setting the Test Mode

Page 16

SECTION 4

TEST MODE

*Note:

As this unit has only a few buttons, one button is assigned with several functions in the test mode.”

Press the INPUT button to switch the functions.

Each time the INPUT button is pressed, the display switches in the following order;” “PROGRAM” n“1” nblank n“PROGRAM”

The functions of each button change with the display.

Buttons and Corresponding Functions

Buttons

Function when

 

Function when “PROGRAM”

 

Function when “1” is displayed

nothing displayed

 

is displayed

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1/u

1/u

 

 

 

TIME

 

 

 

 

 

 

 

 

 

 

 

6(EJECT)

6(EJECT)

CLEAR

REPEAT

 

 

 

 

 

 

 

 

^

^

ENTER/YES

PLAY MODE

 

 

 

 

 

 

 

 

=

=(AMS)

0(FR)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+

+(AMS)

)(FF)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

p (STOP)

p (STOP)

EDIT/NO

DISPLAY

 

 

 

 

 

 

 

 

r(REC)

r(REC)

PUSH (AMS)

SCROLL

 

 

 

 

 

 

 

 

4-1. PRECAUTIONS FOR USE OF TEST MODE

As loading related operations will be performed regardless of the test mode operations being performed, be sure to check that the disc is stopped before setting and removing it.

Even if the 6(EJECT) button is pressed while the disc is rotating during continuous playback, continuous recording, etc., the disc will not stop rotating.

Therefore, it will be ejected while rotating.

Be sure to press the 6 (EJECT) button after pressing the p“PROGRAM” button and the rotation of disc is stopped.

4-1-1. Recording laser emission mode and operating buttons

Continuous recording mode (CREC MODE)

Laser power check mode (LDPWR CHECK)

Laser power adjustment mode (LDPWR ADJUST)

Traverse (MO) check (EF MO CHECK)

Traverse (MO) adjustment (EF MO ADJUST)

When pressing the r(REC) button.

4-2. SETTING THE TEST MODE

The following are two methods of entering the test mode.

Procedure 1: While pressing the INPUT button and p button, connect the power plug to an outlet, and release the INPUT button and p button.

When the test mode is set, “[Check]” will be displayed. Rotating the INPUT button switches between the following four groups; ···NnCheck NnAdjust NnService NnDevelop Nn···.

Procedure 2: While pressing the INPUT button, connect the power plug to the outlet and release the INPUT button.

When the test mode is set, “TEMP CHECK” will be displayed. By setting the test mode using this procedure, only the “Check” group of procedure 1 can be executed.

4-3. EXITING THE TEST MODE

Press the

p“1” button. The disc is ejected when loaded, and “Standby” display blinks, and the STANDBY state is set.

4-4. BASIC OPERATIONS OF THE TEST MODE

All operations are performed using the =, + button, ^ “PROGRAM” The functions of these buttons are as follows.

Function name

Function

 

 

=, + button

Changes parameters and modes

 

 

 

^ “PROGRAM”

button

Proceeds onto the next step. Finalizes input.

 

 

 

p “PROGRAM”

button

Returns to previous step. Stops operations.

 

 

 

button, and

p“PROGRAM”

button.

16

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Contents Specifications MDM-5AInput SELF-DIAGNOSIS FunctionProgram Items of Error History Mode Items and Contents Flexible Circuit Board Repairing Parts NoTable of Contents DisassemblyDiagrams Exploded ViewsSection Servicing Note JIG for Checking BD Board WaveformIOP TEORecord Precedure Criteria for Determination Measure if unsatisfactory Checks Prior to Parts Replacement and AdjustmentsREC/PLAY Fluorescent Display Tube ALL Lighting and KEY Check Mode Forced ResetPower Board Component Side Retry Cause Display Mode Higher Bits Lower Bits HexaCause of Retry Occurring conditions Bit BinaryHigher Bits Lower Bits Hexa Details Bit When BinaryHexadecimal Binary Section General Front PanelCase and Front Panel Section DisassemblyMD Mechanism Slider CAM Base Unit MBU-5A and BD BoardSW Board and Loading Motor M103 Section Test Mode Precautions for USE of Test ModeSetting the Test Mode Exiting the Test ModeSelecting the Test Mode GroupOperating the Continuous Playback Mode Non-Volatile Memory Mode EEP ModeMID OUTTest Mode Displays Functions of Other ButtonsMeanings of Other Displays Section Electrical Adjustments Parts Replacement and AdjustmentPrecautions for Checking Laser Diode Emissinon Precautions for USE of Optical PICK- UP KMS-260APrecautions for Adjustments Creating Continuously Recorded DiscTemperature Compensation Offset Check Laser Power CheckChecks Prior to Repairs Specified ValuePlay Checking MO Error Rate Check CD Error Rate CheckFocus Bias Check EjectInitial Setting of Adjustment Value Temperature Compensation Offset AdjutmentLaser Power Adjustment Recording and Displaying the IOP InformationTraverse Adjustment Focus Bias Adjustment 6EJECTError Rate Check Auto Gain Control Output Level AdjustmentCD Auto Gain Control Output Level Adjustment MO Auto Gain Control Output Level AdjustmentAdjusting Points and Connecting Points BD Board Side BSection Diagrams Circuit Boards LocationBlock Diagram BD Section MDS-PC2PB Digital out REC DigitalMain Section LD-LOVOWaveforms Panel SectionPrinted Wiring Board BD Section See page 30 for Circuit Boards LocationSchematic Diagram BD 1/2 Section Schematic Diagram BD 2/2 Section Schematic Diagram Main 1/2 Section Panel Schematic Diagram Main 2/2 SectionBoard Power Printed Wiring Board Main SectionBD Board Panel Schematic Diagram Panel Section Printed Wiring Board Panel Section Main BoardSchematic Diagram Power Section Printed Wiring Board Power Section Main Board BD BoardPrinted Wiring Board BD Switch Section Schematic Diagram BD Switch Section IC Block DiagramBD section IC101 CXA2523AR IC121 CXD2654R IC152 BH6511FS-E2Main section IC301 UDA1341TS/N2 IC441 LB1830MIC101 RF Amplifier CXA2523AR BD board IC PIN FunctionsPin No Pin Name Function MNT0 FOK MNT1 ShckMNT2 Xbusy MNT3 SlocMvci AsyoAsyi AvddTfdr FfdrFrdr FS4IC501 System Control M30620MC-406FP Main board OPT SEL Mode SEL PB-PREC/PB SDASection Exploded Views CORD, Power UKCabinet Section Mechanism Section MDM-5A Insulator F509 4-988-466-21 Spring ELECTROSTATIC, Leaf 526 A-4680-417-A Holder Complete AssyHEAD, Over Light Base Unit Section MBU-5AMotor ASSY, Sled Back UP Section Electrical Parts List Main CONNECTOR, FFC 15P ElectGround Terminal Ferrite BeadPLUG, Connector 6P PIN, Connector 2PMain Panel VibratorPanel Power Power SW 928-916-11

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.