Mechanism Deck Section MDM-7A | Sony MDS-JE770 instruction

MDS-JE770

3-6. MECHANISM DECK SECTION (MDM-7A)

3 Mechanism deck

2Two step screws (+BVTTWH M3)

2 Two step screws (+BVTTWH M3)

1 Harness

3-7. OVER LIGHT HEAD (HR901), BD BOARD

Note 1: If you disconnect the connector (CN104), you can remove the BD board without removing the over write head (HR901).

Note 2: Be careful to handle the over write head (HR901) because it is easy to be damaged.

3 Head, over light (HP901)

4Remove the solder (four portion)

2Screw (P1.7X6)

8BD board

61 Connector (CN104)

4 Remove the solder (five portion)	7 FLEXIBLE board (CN101)
	5 Two screws (BTP2X6)

16

Image 16

Sony MDS-JE770 specifications Mechanism Deck Section MDM-7A, Over Light Head HR901, BD Board

Contents

Specifications 873-890-11MDS-S50 MDM-7A Genera l Power requirements Supplied accessoriesMDS-JE770 SELF-DIAGNOSIS Function Items of Error History Mode Items and Contents Table of Contents DisassemblyDiagrams Exploded Views MDS-JE770 Section Service Notes Flexible Circuit Board Repairing JIG for Checking BD Board Waveform IOP Record Precedure KSN-260E Optical PICK-UP Block Type Discrimination Forced Reset Checks Prior to Parts Replacement and AdjustmentsMain Board Component Side Retry Cause Display Mode Bit Binary Higher Bits Lower Bits Hexa Details Bit When BinaryHexadecimal Binary MDS-JE770 Section General Button Descriptions MDS-JE770 Section Disassembly Disassembly Flow Front Panel Section Main Board Two screws Mechanism Deck Section MDM-7A Over Light Head HR901, BD Board Holder Assy Loading Motor Assy M103 Sled Motor Assy M102, Slider Optical PICK-UP Spindle Moter Assy M101 MDS-JE770 Section Test Mode Precautions for USE of Test ModeSetting the Test Mode Exiting the Test Mode Selecting the Test Mode Operating the Continuous Playback Mode MENU/NO Test Mode Displays Mode displayError rate display Functions of Other Buttons When Memory NG is Displayed Meanings of Other DisplaysAutomatic SELF-DIAGNOSIS Function Information Parts Replacement and Adjustment MDS-JE770 Section Electrical AdjustmentsCheck before replacement Adjustment flow Auto Gain Control Output Level Precautions for Checking Laser Diode Emission Precautions for USE of Optical PICK- UP KMS-260B/260EPrecautions for Adjustments Temp Adjust Using the Continuously Recorded Disc Checks Prior to Repairs Auto Check Other ChecksTraverse Check Traverse Waveform Play Check MO Error Rate Check CD Error Rate CheckFocus Bias Check Self-Recording/playback Check Temperature Compensation Offset Adjutment Initial Setting of Adjustment ValueLaser Power Adjustment Traverse Adjustment Iop NV Save 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 MDS-JE770 Section Diagrams Circuit Boards Location For schematic diagrams For printed wiring boardsBD Board Main Board IC171 Block Diagrams BD SectionIC190 IC360 2/2 Main SectionIC1 2/2 SemiconductorOVER SemiconductorOptical Pick UP Block Write Head Board Board Main Main Schematic Diagram Main /2 See page 51 for IC Block Diagrams Model is printed on diagram IC1 Display Board KB BoardKEY-SW Board HP Board Schematic Diagram Display Section LED Drive RY910 C951 C952D910 CN921 C924 LF900 C910 Schematic Diagram Power Section Main IC Block Diagrams IC101 CXA2523AR BD Board IC500 AK4524 Main Board IC101 CXA2523AR RF Amplifier BD Board IC PIN Function DescriptionPin No Pin Name Description Pin No Pin Name Desription Mvci AsyoAsyi Avdd Tfdr FfdrFrdr FS4 IIC Power ADA.RESETFldt Flck ADA. Latch EPNDINT1/H Clip Protect Timer STBBeep SW REC Flcs Reset VDISP1VFL1 OSC0 Section Exploded Views Chassis Section FL750 1-517-987-11 Indicator TUBE, Fluorescent Not supplied Supplied with J790 FL750 With RV790 Mechanism MDM-7A HEAD, Over Light Motor ASSY, SpindleMotor ASSY, Sled Motor ASSY, Loading MDS-JE770 Section Electrical Parts List Switch Metal ChipJumper Resistor Short MDS-JE770 Display HP KB KEY-SW KEY-SW Main MDS-JE770 Main 2SD2144S-TP-UVW Resistor MDS-JE770 Main PT VOL-SEL Memo MDS-JE770 Revision History