RY910, C951 C952, D910, CN921 C924 LF900 C910 | Sony MDS-JE770

MDS-JE770

6-11. PRINTED WIRING BOARD – POWER SECTION – • See page 36 for Circuit Board Location.

There are a few cases that the part isn’t mounted in model is printed on diagram.

1	2	3				4			5	6		7	8
PT BOARD
		TR950				RY910		* NOT REPLACEABLE:			C951
						RY910		* NOT REPLACEABLE:			C952	EP900
							D910		BUILT IN TRANSFORMER	TR900

A											CN921
											CN921
										6	11
										6	11
									5		7
									5
									*		8
									*
									4		9
											9
									3		10	C924
	LF900	4	2	1			C910		3		C923
				1			C910


B			JW903								11
B			JW903								1
	C901	JW902							2		1
									2		12

								JW904
		5		4	3	2	1		1		13
	CN900	5		4	3	2	1



							CN950				LP900
							CN950
	EXCEPT SP	JW901									1-681-739-		11
	EXCEPT SP	JW901											(11)


C		VOL–SEL									F
C		BOARD
		BOARD
		SP								MAIN BOARD
AC IN										MAIN BOARD
AC IN											CN400
		1		2	3	4	5				CN400
		1		2	3	4	5				(Page 45)
		CN990									(Page 45)
		CN990
						1-681-745-			11
D						1-681-745-			(11)
D					S990				(11)
					S990
				VOLTAGE SELECTOR
			220–240V			110–120V
						48			48

Image 48

Sony MDS-JE770 specifications RY910, C951 C952, D910, CN921 C924 LF900 C910, C901, CN950 LP900, JW901, CN990, S990

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 Checks Prior to Parts Replacement and Adjustments Forced ResetMain Board Component Side Retry Cause Display Mode Bit Binary Bit When Binary Higher Bits Lower Bits Hexa DetailsHexadecimal 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 MDS-JE770 Section Electrical Adjustments Parts Replacement and AdjustmentCheck 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 Initial Setting of Adjustment Value Temperature Compensation Offset AdjutmentLaser 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 Block Diagrams BD Section IC171IC190 Main Section IC360 2/2IC1 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 IC PIN Function Description IC101 CXA2523AR RF Amplifier BD BoardPin 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