Sony MDS-SD1 service manual Base Unit Section MBU-5A, HEAD, Over Light, Motor ASSY, Sled

Page 56

7-4. BASE UNIT SECTION (MBU-5A)

252 265

264

266

HR901

#5

271

#4

263		267
263		#4	268
270		272	268
		272
		#4
not supplied		269
not supplied		262
		261	255
		#4	255
not supplied		#6	256
		#6	256
			259
M101	S102	#5	260
		#5	258

		#4
		#4

254

257

#4

252

253

M102

251

252

The components identified by mark !or dotted line with mark !are critical for safety. Replace only with part number specified.

Ref. No.

Part No.

Description

Remark

*251 A-4699-893-A BD BOARD, COMPLETE

2523-372-761-01 SCREW (M1.7), TAPPING

*253 4-996-267-01 BASE (BU-D)

*254 4-996-255-01 BASE (BU-C)

2554-900-590-01 SCREW, PRECISION SMALL

2564-996-258-01 SPRING, COMPRESSION

2574-996-262-01 GEAR (SL-C)

*258 1-667-954-11 FLEXIBLE BOARD

*259 4-996-253-12 BASE (BU-A)

!260	8-583-028-02 OPTICAL PICK-UP KMS-260A/J1NP

*261 4-996-252-01 CHASSIS, BU

*262 4-996-254-01 BASE (BU-B)

263 4-967-688-11 MAGNET, ABSORPTION

264 4-996-260-01 GEAR (SL-A)

Ref. No.

Part No.

Description

Remark

2654-996-261-01 GEAR (SL-B)

2664-996-264-01 SPRING (SHAFT), LEAF

2674-996-265-01 SHAFT, MAIN

2684-996-256-11 SL (BASE)

2694-996-257-01 RACK (SL)

2704-996-263-01 SPRING (CLV), TORSION

2714-988-560-01 SCREW (+P 1.7X6)

2724-211-036-01 SCREW (1.7X2.5), +PWH

HR901	1-500-502-11	HEAD, OVER LIGHT
M101	A-4672-475-A	MOTOR ASSY, SPINDLE
M102	A-4672-474-A	MOTOR ASSY, SLED
S102	1-762-148-21	SWITCH, PUSH (2 KEY)

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Contents Specifications MDS-JE520MDM-5A MBU-5ASELF-DIAGNOSIS Function Items of Error History Mode Items and Contents Parts No Flexible Circuit Board RepairingSpecification Label Table of Contents DisassemblyDiagrams Exploded ViewsSection Servicing Note JIG for Checking BD Board WaveformRecord Precedure Checks Prior to Parts Replacement and Adjustments Criteria for Determination Measure if unsatisfactoryForced Reset Main Board Component SideCleaning of Objective Lens of Optical Pickup Fluorescent Indicator Tube and Mechanism DeckAttaching the Glass Assembly Fluorescent Indicator TUBE, LED Complete Lighting CheckServicing Position Retry Cause Display Mode Higher Bits Lower Bits HexaCause of Retry Occurring conditions BinaryHexadecimal Binary Bit When BinaryHigher Bits Lower Bits Hexa Details Section General Front Panel Location of Parts and ControlsFront Panel Section DisassemblyGlass Assy Slider CAM Base Unit 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 GroupFunctions of Other Buttons Operating the Continuous Playback ModeNon-Volatile Memory Mode EEP Mode Test Mode 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 Self-Recording/playback CheckInitial Setting of Adjustment Value Temperature Compensation Offset AdjutmentLaser Power Adjustment Recording and Displaying the IOP InformationTraverse Adjustment Focus Bias Adjustment Error 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 Section Diagrams Circuit Boards LocationBlock Diagrams BD Section MDS-SD1PB Digital out REC DigitalRECDigital Main SectionPBDigital out For schematic diagrams For printed wiring boardsWaveforms Display SectionPrinted Wiring Board BD Section Semiconductor LocationSchematic Diagram BD 1/2 Section Schematic Diagram BD 2/2 Section Schematic Diagram Main 1/2 Section Schematic Diagram Main 2/2 Section Printed Wiring Board Main Section Schematic Diagram Panel Section Printed Wiring Board Panel Section Schematic Diagram Connector Section Printed Wiring Board Connector Section System Control To HCD-SD1MDS-SD1 IC Block Diagrams BD Section IC101IC301 LB1641 IC152 BH6511FS-E2Main Section IC201 UDA1341TS/N2 IC851 M5293L Connector Section IC774 P82B715TD.118IC822 M62016FP-E1 Pin No Pin Name Function IC PIN FunctionsIC101 CXA2523AR RF Amplifier BD Board IC701 M30610MC-A01FP System Control ∝CON Main Board CHAK-IN Section Exploded Views Case and Back Panel SectionFL901 1-517-804-11 Indicator TUBE, Fluorescent Front Panel SectionPanel SW Board 67 A-4724-619-A Panel BOARD, Complete209 4-988-466-21 Spring ELECTROSTATIC, Leaf Mechanism Deck Section MDM-5AInsulator F Motor ASSY, Sled Base Unit Section MBU-5AHEAD, Over Light Section Electrical Parts List Connector Connector Encoder Main Main Inductor Line FilterFILTER, Line FeritePanel Panel SW Accessories & Packing Materials FILTER, Clamp Ferrite Core MANUAL, Instruction EnglishMANUAL, Instruction CHINESESP,HK Hardware List Screw +BSony Corporation