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Sony MDS-PC3 specifications Section Disassembly, Case U, MD MECHANISM DECK MDM-7A

Models: MDS-PC3

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SECTION 3

DISASSEMBLY

Note : Follow the disassembly procedure in the numerical order given.

3-1. CASE (U)

4 case (U)

claws

1 three screws (BVTP 3x10)

1three screws (BVTP 3x10)

3-2. MD MECHANISM DECK (MDM-7A)

1flat type wire (23 core)

	(CN102)	2 two screws
	2 two screws	2 two screws
	2 two screws	(+BVTTWH M3 3x10)
	(+BVTTWH M3 3x10)	(+BVTTWH M3 3x10)
	(+BVTTWH M3 3x10)
		1 flat type wire (27 core)
		(CN101)

3mechanism deck

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Sony MDS-PC3 specifications Section Disassembly, Case U, MD MECHANISM DECK MDM-7A

Contents

MDS-PC3 SPECIFICATIONSSERVICE MANUAL MINIDISC DECKSELF-DIAGNOSISFUNCTION Self-DiagnosisFunctionITEMS OF ERROR HISTORY MODE ITEMS AND CONTENTS Selecting the Test Mode6. DIAGRAMS TABLE OF CONTENTS3. DISASSEMBLY Table of Error CodesFlexible Circuit Board Repairing SECTION SERVICE NOTESNotes on chip component replacement SAFETY CHECK-OUTJIG FOR CHECKING BD BOARD WAVEFORM Record Precedure Display PrecedureMAIN BOARD Component Side CHECKS PRIOR TO PARTS REPLACEMENT AND ADJUSTMENTSFORCED RESET ProcedureReading the Display RETRY CAUSE DISPLAY MODEProcedure ExampleClearing the Retry Record Reading the DisplayHexadecimal t Binary Conversion Table GENERAL Remote Parts DescriptionFront Panel Parts Description SECTIONWhile the deck is recording Using the DisplayWhen you insert an MD While the deck is playingHooking Up Connecting the MD deck to a personal computerConnecting the MD deck with an audio component When recording from an analog3-2.MD MECHANISM DECK MDM-7A SECTION DISASSEMBLY3-1.CASE U 3-3.MAIN BOARD 3-4.OVER LIGHT HEAD HR901, BD MD BOARD2 claw 3-5.HOLDER ASSY3-6.LOADING MOTOR ASSY M103 3-7.SLED MOTOR ASSY M102, SLIDER 3-8.OPTICAL PICK-UPMD KMS-260B/JIN3-9.SPINDLE MOTOR ASSY M101 2motor assy, spindle M101 1 screw M 1.7, tapping4-2.SETTING THE TEST MODE SECTION TEST MODE4-1.PRECAUTIONS FOR USE OF TEST MODE 4-3.EXITING THE TEST MODE4-5.SELECTING THE TEST MODE 4-5-1.Operating the Continuous Playback Mode 2. Error rate display 4-7.TEST MODE DISPLAYS1. Mode display 4-6.FUNCTIONS OF OTHER BUTTONS4-10.INFORMATION 4-8.MEANINGS OF OTHER DISPLAYS4-9.AUTOMATIC SELF-DIAGNOSISFUNCTION Check before replacement SECTION ELECTRICAL ADJUSTMENTS5-1.PARTS REPLACEMENT AND ADJUSTMENT Adjustment flow Optical pick-upflexible board 5-2.PRECAUTIONS FOR CHECKING LASER DIODE EMISSION5-4.PRECAUTIONS FOR ADJUSTMENTS 5-6-2.Laser Power Check 5-5.USING THE CONTINUOUSLY RECORDED DISC5-6-1.Temperature Compensation Offset Check 5-6.CHECKS PRIOR TO REPAIRS5-6-6.Traverse Check 5-6-7.Focus Bias Check 5-6-4.Auto Check5-6-5.Other Checks 5-6-8.C PLAY Check5-6-7.Focus Bias Check 5-6-8.C PLAY Check MO Error Rate CheckCD Error Rate Check 5-6-9. Self-Recording/playbackCheck5-10.LASER POWER ADJUSTMENT 5-7.INITIAL SETTING OF ADJUSTMENT VALUE5-9.TEMPERATURE COMPENSATION OFFSET ADJUTMENT 5-8.RECORDING AND DISPLAYING Iop INFORMATIONSpecified Value 5-12.TRAVERSE ADJUSTMENT5-11.Iop NV SAVE 5-13.FOCUS BIAS ADJUSTMENT 5-14-1.CD Error Rate Check 5-14.ERROR RATE CHECK5-16.AUTO GAIN CONTROL OUTPUT LEVEL ADJUSTMENT 5-14-2.MO Error Rate CheckBD BOARD SIDE B 5-17.ADJUSTING POINTS AND CONNECTING POINTSBD BOARD SIDE A CN101 D101For printed wiring boards SECTION 6 DIAGRAMSFor schematic diagrams • Indication of transistor6-1.BLOCK DIAGRAMS – BD SECTION – MDS-PC3x / Z – MAIN SECTION –MDS-PC3 • Semiconductor 6-2.PRINTED WIRING BOARD – BD SECTION –Location •SemiconductorMDS-PC3 40 40PIN FUNCTION MDS-PC3 PIN FUNCTIONLocation 6-5.PRINTED WIRING BOARD – MAIN SECTION –MDS-PC3 LocationMDS-PC3 PIN FUNCTONMDS-PC3 Location 6-8.PRINTED WIRING BOARD – PANEL SECTION –MDS-PC3 LocationMDS-PC3 IC151 CXD2662R BD BOARD 6-10.IC BLOCK DIAGRAMSIC101 CXA2523AR BD BOARD IC141 BH6511FS BD BOARDIC440 IC400MAX1626ESA-TE2MAIN BOARD LB1830M-S-TE-LMAIN BOARDIC503 IC420M62016FP-E1MAIN BOARD BH3541F-E2MAIN BOARD6-11.IC PIN FUNCTIONS • IC101 CXA2523AR RF Amplifier BD BOARDMNT0 FOK MVCI Pin Name • IC300 M30805SGP MAIN BOARDPin No FunctionSHCK MNT1 15 14 SECTION EXPLODED VIEWS7-1.CHASSIS SECTION 17 11 8313 315 316 305 7-2.MECHANISM SECTION-1 MDM-7A 312 311 314 310309 321 319 302 320354362 352 7-3.MECHANISM SECTION-2 MDM-7A 359358 360 356 357 367 368 361 353 353SECTION ELECTRICAL PARTS LIST Ref. No MAIN MAIN Ref. NoPANEL MAINAudio Entertainment Group MDS-PC3 PANEL9-929-545-11Sony Corporation