KSN-260E | Sony MDS-JE770 specs

MDS-JE770

OPTICAL PICK-UP BLOCK TYPE DISCRIMINATION

There are two types of the optical pick-up block in this model.

These are compatible except for the laser power.

Check the type of the optical pick-up block before replacement.

Ajdust following items after replacing the optical pick-up block.

•5-6-2. Laser Power Check (See page 28)

•5-10. LASER POWER ADJUSTMENT (See page 31)

Differences

		KMS-260B	KMS-260E

	Color of the adhesive agent at PDIC portion	Pink	White

	Form of FPC retainer plate	Close the hole on SL base	Not close the hole on SL base

	APC variable resistor	Small volume (2 type)	Big variable resistor (3 type) and chip resistor (Fig. A)

			Small variable resistor (2 type) and chip resistor (Fig. B)
			Small variable resistor (2 type) and chip resistor (Fig. B)

KSN-260B

Hold on SL base

Fig. B type is for repair.

• Abbreviation

260B: KMS-260B model

260E: KMS-260E model

KSN-260E

Hold on SL base

FPC retainer plate

APC variable	Adhesive agent at
resistor	PDIC portion

(Fig A)

CHIP

3 type variable resistor

(Fig B)

CHIP

2 type variable

resistor

Adhesive agent at	FPC retainer plate
Adhesive agent at
PDIC portion

8

Image 8

Sony MDS-JE770 specifications KSN-260E, Optical PICK-UP Block Type Discrimination

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 Main Board Component Side Checks Prior to Parts Replacement and AdjustmentsForced Reset Retry Cause Display Mode Bit Binary Hexadecimal Binary Bit When BinaryHigher Bits Lower Bits Hexa Details 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 Check before replacement MDS-JE770 Section Electrical AdjustmentsParts Replacement and Adjustment 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 Laser Power Adjustment Initial Setting of Adjustment ValueTemperature Compensation Offset Adjutment 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 IC190 Block Diagrams BD SectionIC171 IC1 2/2 Main SectionIC360 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 Pin No Pin Name Description IC PIN Function DescriptionIC101 CXA2523AR RF Amplifier BD Board 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