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MDS-PC2 service manual Schematic Diagram - Power Section, Main, Digital, Optical
Models:
MDS-PC2
1
42
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Specification
Install
Parts list
Section Diagrams
Notes on chip component replacement
Adjusting Points And Connecting Points
Forced Reset
Section Disassembly
Checking Procedure
Error rate display
Page 42
Image 42
MDS-PC2
6-11.
SCHEMATIC DIAGRAM – POWER SECTION –
MAIN
BOARD
(1/2)
(Page 37)
BD BOARD
(2/2)
RESET
(Page 36)
OUT
IN 1
IN 2
DIGITAL
(OPTICAL)
42
42
Page 41
Page 43
Page 42
Image 42
Page 41
Page 43
Contents
MINIDISC DECK
SPECIFICATIONS
MDS-PC2
US Model Canadian Model AEP Model UK Model
SELF-DIAGNOSISFUNCTION
ITEMS OF ERROR HISTORY MODE ITEMS AND CONTENTS
Table of Error Codes
Selecting the Test Mode
ADVARSEL
Notes on chip component replacement
Flexible Circuit Board Repairing
VARNIG
6. DIAGRAMS
TABLE OF CONTENTS
3. DISASSEMBLY
SAFETY CHECK-OUT
SECTION SERVICING NOTE
JIG FOR CHECKING BD BOARD WAVEFORM
Record Precedure
Display Precedure
CHECKS PRIOR TO PARTS REPLACEMENT AND ADJUSTMENTS
POWER BOARD Component Side
FORCED RESET
Procedure
Procedure
RETRY CAUSE DISPLAY MODE
Precedure
Reading the Display
Reading the Display
Hexadecimal nBinary Conversion Table
SECTION GENERAL
Location of Parts and Controls
SECTION DISASSEMBLY
3-1.CASE AND FRONT PANEL
3-2.MD MECHANISM
3-3.SLIDER CAM
3-4.BASE UNIT MBU-5AAND BD BOARD
Note for Installation of Slider Cam
3 Two screws PWH 1.7 x 4 Loading motor M103
3-5.SW BOARD AND LOADING MOTOR M103
1 Screw PTPWH M2.6 x 2 Gear B
6 SW board 5Three screws BTP2.6
SECTION TEST MODE
4-1.PRECAUTIONS FOR USE OF TEST MODE
4-2.SETTING THE TEST MODE
4-3.EXITING THE TEST MODE
4-5.SELECTING THE TEST MODE
4-5-1.Operating the Continuous Playback Mode
4-5-3. Non-VolatileMemory Mode EEP MODE
4-7.TEST MODE DISPLAYS
2. Error rate display
4-6.FUNCTIONS OF OTHER BUTTONS
1. Mode display
When Lit
MEANINGS OF OTHER DISPLAYS
Contents
When Off
SECTION ELECTRICAL ADJUSTMENTS
5-1.PARTS REPLACEMENT AND ADJUSTMENT
5-4.PRECAUTIONS FOR ADJUSTMENTS
5-5.CREATING CONTINUOUSLY RECORDED DISC
Optical pick-upflexible board
5-6-2.Laser Power Check
5-6-1.Temperature Compensation Offset Check
Checking Procedure
5-6.CHECKS PRIOR TO REPAIRS
5-6-4.Focus Bias Check
5-6-5.C PLAY Checking MO Error Rate Check
CD Error Rate Check
5-6-6. Self-Recording/playbackCheck
5-10.LASER POWER ADJUSTMENT
5-7.INITIAL SETTING OF ADJUSTMENT VALUE
5-9.TEMPERATURE COMPENSATION OFFSET ADJUTMENT
Setting Procedure
Specified Value
5-11.TRAVERSE ADJUSTMENT
Adjusting Procedure
Connection
5-12.FOCUS BIAS ADJUSTMENT
Adjusting Procedure
5-13-1.CD Error Rate Check
5-13.ERROR RATE CHECK
5-15.AUTO GAIN CONTROL OUTPUT LEVEL ADJUSTMENT
5-13-2.MO Error Rate Check
5-15.ADJUSTING POINTS AND CONNECTING POINTS
BD BOARD SIDE A
BD BOARD SIDE B
SECTION DIAGRAMS
6-1.CIRCUIT BOARDS LOCATION
MDS-PC2
6-2.BLOCK DIAGRAM - BD SECTION
SIGNAL PATH
PB Digital out
PB REC
Page
MAIN SECTION
SIGNAL PATH
BD 2/2 SECTION
WAVEFORMS
BD 1/2 SECTION
PANEL SECTION
SEMICONDUCTOR LOCATION
6-3.PRINTED WIRING BOARD - BD SECTION
See page 30 for Circuit Boards Location
SOLDER BRIDGE SEMICONDUCTOR LOCATION
See page 33 for Waveform
6-4.SCHEMATIC DIAGRAM - BD 1/2 SECTION
See page 45 for IC Block Diagrams
See page 48 for IC Pin Function
MDS-PC2
6-5.SCHEMATIC DIAGRAM - BD 2/2 SECTION
See page 34 for Printed Wiring Board
Page
6-6.SCHEMATIC DIAGRAM - MAIN 1/2 SECTION
See page 39 for Printed Wiring Board
MDS-PC2
Page
6-7.SCHEMATIC DIAGRAM - MAIN 2/2 SECTION
See page 47 for IC Block Diagrams
MDS-PC2
MDS-PC2
6-8.PRINTED WIRING BOARD - MAIN SECTION
SEMICONDUCTOR LOCATION
Page
MDS-PC2
6-9.SCHEMATIC DIAGRAM - PANEL SECTION
See page 33 for Waveform
Page
Page
6-10.PRINTED WIRING BOARD - PANEL SECTION
MDS-PC2
See page 30 for Circuit Boards Location
MAIN
6-11.SCHEMATIC DIAGRAM - POWER SECTION
MDS-PC2
DIGITAL
LOCATION
6-12.PRINTED WIRING BOARD - POWER SECTION
SEMICONDUCTOR
MDS-PC2
6-14.PRINTED WIRING BOARD - BD SWITCH SECTION
6-13.SCHEMATIC DIAGRAM - BD SWITCH SECTION
6-15.IC BLOCK DIAGRAM
BD section
IC121 CXD2654R
IC152 BH6511FS-E2
MAIN section
IC301 UDA1341TS/N2
IC441 LB1830M
6-16.IC PIN FUNCTIONS
IC101 RF Amplifier CXA2523AR BD board
MNT0 FOK
Data input/output for DRAM
TFDR
IC501 System Control M30620MC-406FPMAIN board
PB-P
SECTION EXPLODED VIEWS
7-1.CABINET SECTION
520 522
7-2.MECHANISM SECTION MDM-5A
524 513 511512 517 518
503
7-3.BASE UNIT SECTION MBU-5A
554
SECTION ELECTRICAL PARTS LIST
BACK UP
MAIN
MAIN
Ref. No
PANEL
MAIN
POWER
PANEL
POWER SW
Sony Corporation
9-928-916-11
MDS-PC2
Home Audio Company