Sony MDS-PC2 service manual Record Precedure

Page 7

IOP DATA RECORDING AND DISPLAY WHEN OPTICAL PICK-UP AND NON-VOLATILE MEMORY (IC171 OF BD 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 board), record the IOP value on the optical pick-up according to the following procedure.

Record Precedure:

 

 

 

 

 

1.

While pressing the

INPUT

button and p button, connect the power plug to the outlet, and release the

INPUT

button and p button.

2.

Press the

 

button to display “[Service]”, and press the

 

 

button.

+

 

^ “PROGRAM”

3.

Press the

+

button to display “lop.Write”, and press the

 

^ “PROGRAM”

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

+

button.

To select the digit : Press the

 

 

button.

r“PROGRAM”

6.When the ^“PROGRAM” 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 ^“PROGRAM” 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 6“1” button to complete. “Standby” will be displayed.

Display Precedure:

 

 

 

 

1.

While pressing the

INPUT

button and p button, connect the power plug to the outlet, and release the

INPUT

button and p button.

2.

Press the

 

button to display “[Service]”, and press the

 

button.

+

^ “PROGRAM”

3.

Press the

 

button to display “lop.Read”, and press the

 

 

button.

+

 

^ “PROGRAM”

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 r“PROGRAM” button or p“PROGRAM” button to display “Iop Read”. Then press the 6“1” buttun.

*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.

For simplicity, operations of the INPUT button will not be described here.

Instead, symbols are added to the names of buttons. Press the INPUT button as required to switch the display.

Example)

p“PROGRAM”

: Display “PROGRAM” and press the

pbutton.

p“1” : Display “1” and press the

p

button.

7

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Contents MDM-5A SpecificationsInput SELF-DIAGNOSIS FunctionProgram Items of Error History Mode Items and Contents Parts No Flexible Circuit Board RepairingExploded Views Table of ContentsDisassembly DiagramsTEO Section Servicing NoteJIG for Checking BD Board Waveform IOPRecord 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 Bit Binary Retry Cause Display ModeHigher Bits Lower Bits Hexa Cause of Retry Occurring conditionsHigher Bits Lower Bits Hexa Details Bit When BinaryHexadecimal Binary Front Panel Section GeneralCase and Front Panel Section DisassemblyMD Mechanism Base Unit MBU-5A and BD Board Slider CAMSW Board and Loading Motor M103 Exiting the Test Mode Section Test ModePrecautions for USE of Test Mode Setting the Test ModeGroup Selecting the Test ModeOUT Operating the Continuous Playback ModeNon-Volatile Memory Mode EEP Mode MIDFunctions of Other Buttons Test Mode DisplaysMeanings of Other Displays Parts Replacement and Adjustment Section Electrical AdjustmentsCreating Continuously Recorded Disc Precautions for Checking Laser Diode EmissinonPrecautions for USE of Optical PICK- UP KMS-260A Precautions for AdjustmentsSpecified Value Temperature Compensation Offset CheckLaser Power Check Checks Prior to RepairsEject Play Checking MO Error Rate CheckCD Error Rate Check Focus Bias CheckRecording and Displaying the IOP Information Initial Setting of Adjustment ValueTemperature Compensation Offset Adjutment Laser Power AdjustmentTraverse Adjustment 6EJECT Focus Bias AdjustmentMO Auto Gain Control Output Level Adjustment Error Rate CheckAuto Gain Control Output Level Adjustment CD Auto Gain Control Output Level AdjustmentBD Board Side B Adjusting Points and Connecting PointsCircuit Boards Location Section DiagramsREC Digital Block Diagram BD SectionMDS-PC2 PB Digital outLD-LOVO Main SectionPanel Section WaveformsSee page 30 for Circuit Boards Location Printed Wiring Board BD SectionSchematic 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 Main Board Printed Wiring Board Panel SectionSchematic Diagram Power Section Main Board BD Board Printed Wiring Board Power SectionPrinted Wiring Board BD Switch Section Schematic Diagram BD Switch Section IC Block DiagramBD section IC101 CXA2523AR IC152 BH6511FS-E2 IC121 CXD2654RIC441 LB1830M Main section IC301 UDA1341TS/N2IC101 RF Amplifier CXA2523AR BD board IC PIN FunctionsPin No Pin Name Function MNT3 Sloc MNT0 FOKMNT1 Shck MNT2 XbusyAvdd MvciAsyo AsyiFS4 TfdrFfdr FrdrIC501 System Control M30620MC-406FP Main board SDA OPT SEL Mode SELPB-P REC/PBSection Exploded Views CORD, Power UKCabinet Section 526 A-4680-417-A Holder Complete Assy Mechanism Section MDM-5AInsulator F 509 4-988-466-21 Spring ELECTROSTATIC, LeafHEAD, Over Light Base Unit Section MBU-5AMotor ASSY, Sled Back UP Section Electrical Parts List Main Ferrite Bead CONNECTOR, FFC 15PElect Ground TerminalVibrator PLUG, Connector 6PPIN, Connector 2P Main PanelPanel 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.
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