Mechanism Section MDM-5A, Slider CAM | Sony MDS-JB920 instruction

MECHANISM SECTION (MDM-5A)

4Remove the mechanism deck (MDM-5A) to direction of the arrow.

SLIDER (CAM)

6 slider (Cam)

2 bracket (Guide L)

1 two screws (P2.6x6)

3 leaf spring

3four step screws (BVTTWH M3)

1 connector (CN401)

2 wire (flat type) (21 core) (MAIN-BD) (CN402)

2 wire (flat type) (23 core) (CN400)

• Note for Installation of Slider A (Cam)

Set the shaft of Cam gear to be at the position in the figure.

Set the shaft of Lever (O/C) to be at the position in the figure.

4 two screws (P2.6x6)

5bracket (Guide R)

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Image 16

Sony MDS-JB920 service manual Mechanism Section MDM-5A, Slider CAM

Contents

MDS-JE520 SpecificationsMDM-5A SELF-DIAGNOSIS Function General Items of Error History Mode Items and Contents Diagrams Table of ContentsSection Servicing Notes Varning Flexible Circuit Board RepairingVaroitus JIG for Checking BD Board Waveform IOP Record Precedure Forced Reset Checks Prior to Parts Replacement and AdjustmentsREC/PLAY Retry Cause Display Mode Precedure Hexadecimal nBinary Conversion Table Location of Controls Section GeneralFront view Rear view Page Page Section Disassembly Case Front Panel Seciton Main Board Mechanism Section MDM-5A Slider CAM Base Unit MBU-5A, BD Board SW BOARD, Loading Motor M103 Section Test Mode Precautions for USE of Test ModeSetting the Test Mode Exiting the Test Mode Selecting the Test Mode Display Contents Mark Group Non-Volatile Memory Mode EEP Mode Operating the Continuous Playback ModeMID Test Mode Displays Functions of Other ButtonsAuto gain display Not used in servicing Detrack check display Not used in servicing Display Contents When Lit When Off Meanings of Other Displays Section Electrical Adjustments Parts Replacement and Adjustment Precautions for Checking Laser Diode Emissinon Precautions for USE of Optical PICK-UP KMS-260APrecautions for Adjustments Laser power meter Temperature Compensation Offset Check Laser Power CheckCheck Prior to Repairs Traverse Check Play Checking MO Error Rate Check CD Error Rate CheckFocus Bias Check Self-Recording/playback Check Initial Setting of Adjustment Value Temperature Compensation Offset AdjutmentLaser Power Adjustment Recording and Displaying the IOP Information Traverse 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 Adjustment Adjusting Points and Connecting Points BD Board IC101 CXA2523AR RF AMP, FOCUS/TRACKING Error AMP Section DiagramsIC PIN Function Description Srdt SensXrst Sqsy Xras XWEMvci Asyo Srdr SfdrSprd Spfd Main Board IC100 CXD8607N A/D Converter Avddl VDD1TEST2 Lvdd Main Board IC800 M30610MCA-264FP System Controller MDS-JB920 Block Diagram Servo Section ∙ Signal PathREC Analog REC Digital ∙ Signal Path Play Analog OUT Block Diagram Main SectionPlay Digital OUT Circuit Boards Location Printed Wiring Boards BD Section MDS-JB920 Schematic Diagram BD /2 See 53 for Waveforms. See page 70 and 71 for IC Block Diagrams Waveforms BD board Main board Disp board MDS-JB920 MDS-JB920 MDS-JB920 MDS-JB920 Other layers pattern Side a US, CND Schematic Diagram Panel Section See page 54 for Waveforms Schematic Diagram BD Switch Section Printed Wiring Board BD Switch SectionIC Block Diagrams BD Board IC101 CXA2523AR IC121 CXD2654R IC152 BH6511FS-E2 Main Board IC100 CXD8607N IC101 CXA8054MIC203 CXA8042AS IC200 CXD8767N SN74HC153ANS SN74HCU04ANS-E20 Section Exploded Views Chassis Section Front Panel Section Supplied with RV760 204 205 206 201209 4-988-466-21 Spring ELECTROSTATIC, Leaf Base Unit Section MBU-5A Section Electrical Parts List TANTAL. Chip DiodeDiode F1J6TP CXA2523AR Disp Main C252 Mylar HZS6C1L HZ7.5CP-TKCXA8042AS SN74HC153ANS 390 Main PSW Coil with Core VibratorLED SEL6210S-TH10 Standby LED SEL6810A-TH10 Mega Control Transistor SW VOL Sony Corporation