Memo | Sony MDS-JE770 instruction

MDS-JE770

MEMO

71

Image 71

Sony MDS-JE770 specifications Memo

Contents

MDM-7A Specifications873-890-11 MDS-S50 SELF-DIAGNOSIS Function Genera l Power requirementsSupplied accessories MDS-JE770 Items of Error History Mode Items and Contents Exploded Views Table of ContentsDisassembly Diagrams Flexible Circuit Board Repairing MDS-JE770 Section Service Notes IOP JIG for Checking BD Board Waveform Record Precedure Optical PICK-UP Block Type Discrimination KSN-260E Main Board Component Side Checks Prior to Parts Replacement and AdjustmentsForced Reset Bit Binary Retry Cause Display Mode Hexadecimal Binary Bit When BinaryHigher Bits Lower Bits Hexa Details Button Descriptions MDS-JE770 Section General Disassembly Flow MDS-JE770 Section Disassembly Front Panel Section Two screws Main Board Over Light Head HR901, BD Board Mechanism Deck Section MDM-7A Loading Motor Assy M103 Holder Assy Optical PICK-UP Sled Motor Assy M102, Slider Spindle Moter Assy M101 Exiting the Test Mode MDS-JE770 Section Test ModePrecautions for USE of Test Mode Setting the Test Mode Selecting the Test Mode MENU/NO Operating the Continuous Playback Mode Functions of Other Buttons Test Mode DisplaysMode display Error rate display Information When Memory NG is DisplayedMeanings of Other Displays Automatic SELF-DIAGNOSIS Function Check before replacement MDS-JE770 Section Electrical AdjustmentsParts Replacement and Adjustment Auto Gain Control Output Level Adjustment flow Temp Adjust Precautions for Checking Laser Diode EmissionPrecautions for USE of Optical PICK- UP KMS-260B/260E Precautions for Adjustments Checks Prior to Repairs Using the Continuously Recorded Disc Traverse Waveform Auto CheckOther Checks Traverse Check Self-Recording/playback Check Play Check MO Error Rate CheckCD Error Rate Check Focus Bias Check Laser Power Adjustment Initial Setting of Adjustment ValueTemperature Compensation Offset Adjutment Iop NV Save Traverse Adjustment Focus Bias Adjustment MO Auto Gain Control Output Level Adjustment Error Rate CheckAuto Gain Control Output Level Adjustment CD Auto Gain Control Output Level Adjustment Adjusting Points and Connecting Points Circuit Boards Location MDS-JE770 Section Diagrams Main Board For schematic diagramsFor printed wiring boards BD Board IC190 Block Diagrams BD SectionIC171 IC1 2/2 Main SectionIC360 2/2 Write Head SemiconductorOVERSemiconductor Optical Pick UP Block Board Board Main Main Schematic Diagram Main /2 See page 51 for IC Block Diagrams IC1 Model is printed on diagram HP Board Display BoardKB Board KEY-SW Board LED Drive Schematic Diagram Display Section CN921 C924 LF900 C910 RY910C951 C952 D910 Main Schematic Diagram Power Section IC101 CXA2523AR BD Board IC Block Diagrams IC500 AK4524 Main Board Pin No Pin Name Description IC PIN Function DescriptionIC101 CXA2523AR RF Amplifier BD Board Pin No Pin Name Desription Avdd MvciAsyo Asyi FS4 TfdrFfdr Frdr Flck IIC PowerADA.RESET Fldt Protect ADA. LatchEPN DINT1/H Clip REC Flcs TimerSTB Beep SW OSC0 ResetVDISP1 VFL1 Chassis Section Section Exploded Views Not supplied Supplied with J790 FL750 With RV790 FL750 1-517-987-11 Indicator TUBE, Fluorescent Mechanism MDM-7A Motor ASSY, Loading HEAD, Over LightMotor ASSY, Spindle Motor ASSY, Sled MDS-JE770 Section Electrical Parts List Short SwitchMetal Chip Jumper Resistor MDS-JE770 Display HP KB KEY-SW KEY-SW Main MDS-JE770 Main 2SD2144S-TP-UVW Resistor VOL-SEL MDS-JE770 Main PT Memo MDS-JE770 Revision History