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Sony MDS-S50 specifications 4949, Schematic Diagram - Power Section, MDS-JE470

Models: MDS-S50

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6-12. SCHEMATIC DIAGRAM – POWER SECTION –

MDS-JE470

6-12. SCHEMATIC DIAGRAM – POWER SECTION –
					SP
		TR950
						S990
						VOLTAGE SELECTOR
						115V
	C952	C951				230V
	0.1	0.1				230V
	0.1	0.1
		TR900
		POWER		CN950	CN990
		TRANSFORMER		CN950	CN990
CN921		TRANSFORMER		WIRE	5P
CN921				WIRE	5P
11				5P
11
			SP
			JW903
		JW904	JW902
		JW904
		JUMPER	JW901
5			JW901
5
MAIN				LF900	CN900
BOARD(2/2)				LF900	CN900
CN400		C910	EXCEPT	LINE FILTER	2P
(Page49)			EXCEPT

		0.0022	SP
		0.0022	SP
		*			AC	IN
		*
			RY910
			RELAY
1			D910
		NOT REPLACEABLE:	D910
		NOT REPLACEABLE:	1SS133-72
		*
		BUILT IN TRANSFORMER
C924	C923
0.1	0.1
EP900
EARTH
PLATE
(CHASSIS)

4949

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Image 49

Sony MDS-S50 specifications 4949, Schematic Diagram - Power Section, MDS-JE470

Contents

I nputs SPECIFICATIONSOutputs MDS-JE470SELF-DIAGNOSISFUNCTION MDS-JE470General Power requirements Supplied accessoriesMDS-JE470 ITEMS OF ERROR HISTORY MODE ITEMS AND CONTENTSSelecting the Test Mode 3. DISASSEMBLY TABLE OF CONTENTS6. DIAGRAMS 7. EXPLODED VIEWSSAFETY CHECK-OUT MDS-JE470 SECTION SERVICE NOTESLEAKAGE Notes on chip component replacementMDS-JE470 JIG FOR CHECKING BD BOARD WAVEFORMRecord Precedure MDS-JE470Display Precedure MDS-JE470 OPTICAL PICK-UPBLOCK TYPE DISCRIMINATIONKSN-260B KSN-260EFORCED RESET CHECKS PRIOR TO PARTS REPLACEMENT AND ADJUSTMENTS@CN406 ProcedureProcedure RETRY CAUSE DISPLAY MODEMDS-JE470 Reading the Display MDS-JE470Reading the Display Hexadecimal t Binary Conversion TableBUTTON DESCRIPTIONS MDS-JE470 SECTION GENERALMain unit Parts Identification3-1.DISASSEMBLY FLOW MDS-JE470 SECTION DISASSEMBLY3-3.FRONT PANEL SECTION 3-2.UPPER CASE3Connector CN830 2 Connector CN390 1Wire flat type 17core CN3 5Claw3-5.PT BOARD, VOL-SELBOARD SP model 3-4.MAIN BOARD6Two screws +BVTP3x8 3 Connector CN400 2 Wire flat type 23core CN13-7.OVER LIGHT HEAD HR901, BD BOARD 3-6.MECHANISM DECK SECTION MDM-7AMDS-JE470 4 Remove the solder five portion3-9.LOADING MOTOR ASSY M103 3-8.HOLDER ASSYMDS-JE470 2 Claw3-11.OPTICAL PICK-UP 3-10.SLED MOTOR ASSY M102, SLIDERMDS-JE470 5 Remove the claw Shift the slider in the arrowMDS-JE470 3-12.SPINDLE MOTER ASSY M1012Spindle motor ASSY M101 1 Three screws M1.7, tapping4-2.SETTING THE TEST MODE 4-1.PRECAUTIONS FOR USE OF TEST MODEMDS-JE470 SECTION TEST MODE 4-3.EXITING THE TEST MODEMDS-JE470 4-5.SELECTING THE TEST MODEDisplay Group4-5-1.Operating the Continuous Playback Mode MDS-JE4704-7.TEST MODE DISPLAYS 4-6.FUNCTIONS OF OTHER BUTTONS2. Error rate display MDS-JE4704-8.MEANINGS OF OTHER DISPLAYS 4-11.WHEN MEMORY NG IS DISPLAYED4-9.AUTOMATIC SELF-DIAGNOSISFUNCTION 4-10.INFORMATION5-1.PARTS REPLACEMENT AND ADJUSTMENT MDS-JE470 SECTION ELECTRICAL ADJUSTMENTSCheck before replacement MDS-JE470 Adjustment flow5-4.PRECAUTIONS FOR ADJUSTMENTS 5-2.PRECAUTIONS FOR CHECKING LASER DIODE EMISSIONMDS-JE470 Optical pick-upflexible board5-6.CHECKS PRIOR TO REPAIRS 5-5.USING THE CONTINUOUSLY RECORDED DISC5-6-1.Temperature Compensation Offset Check Checking ProcedureChecking Procedure ProcedureMDS-JE470 5-6-4.Auto Check5-6-8.C PLAY Check MO Error Rate Check Checking ProcedureChecking Procedure CD Error Rate Check5-9.TEMPERATURE COMPENSATION OFFSET ADJUTMENT 5-7.INITIAL SETTING OF ADJUSTMENT VALUE5-10.LASER POWER ADJUSTMENT 5-8.RECORDING AND DISPLAYING THE Iop INFORMATIONProcedure 5-12.TRAVERSE ADJUSTMENTAdjusting Procedure MDS-JE470Adjusting Procedure 5-13.FOCUS BIAS ADJUSTMENTMDS-JE470 5-16.AUTO GAIN CONTROL OUTPUT LEVEL ADJUSTMENT 5-14.ERROR RATE CHECK5-15.FOCUS BIAS CHECK 5-14-1.CD Error Rate CheckMDS-JE470 5-17.ADJUSTING POINTS AND CONNECTING POINTSBD BOARD SIDE A BD BOARD SIDE B6-1.CIRCUIT BOARDS LOCATION MDS-JE470 SECTION DIAGRAMSPT board KEY-SWboard MAIN board DISPLAY board BD boardFor printed wiring boards For schematic diagramsMDS-JE470 WAVEFORMS -BD BoardMDS-JE470 6-2.BLOCK DIAGRAMS - BD SECTIONIC171 IC190IC310 MAIN SECTIONIC550 IC781Location MAIN BOARDPage BD BOARD SIDE AMDS-JE470 BD BOARD 2/2 Page BD BOARD 2/2 Page BD BOARD 2/2Page KMS - 260B/260EMDS-JE470 BOARDBD BOARD2/2 CN102 Page42 MDS-JE470DISPLAY BOARD CN701 Page47 7MAIN BOARD 82/2See page 51 for IC Block Diagrams 6-7.SCHEMATIC DIAGRAM - MAIN SECTION 2/2MDS-JE470 MAINLocation MDS-JE470Semiconductor Location MDS-JE470Semiconductor MDS-JE470 6-10.SCHEMATIC DIAGRAM - DISPLAY SECTIONMDS-JE470 PT BOARDVOL-SELBOARD 4949 6-12.SCHEMATIC DIAGRAM - POWER SECTIONMDS-JE470 MDS-JE470 6-13.IC BLOCK DIAGRAMSIC101 CXA2523AR BD BOARD IC151 CXD2662R BD BOARDIC500 AK4524 MAIN BOARD MDS-JE470IC440 M54641L MAIN BOARD IC421 M5293L MAIN BOARDMDS-JE470 6-14.IC PIN FUNCTION DESCRIPTIONIC101 CXA2523AR RF Amplifier BD BOARD Pin NoPin No MDS-JE470Pin Name DesriptionMDS-JE470 PLL Phase Locked LoopPin No Pin NamePin No MDS-JE470Pin Name DescriptionIC1 M30803MG-107FPSYSTEM CONTROL MAIN BOARD MDS-JE470Pin No Pin NameADA. LATCH MDS-JE470BEEP SW MDS-JE4707-1.CHASSIS SECTION SECTION EXPLODED VIEWSMDS-JE470 MDS-JE470 7-2.FRONT PANEL SECTIONFL750 MDS-JE470 7-3.MECHANISM SECTION-1 MDM-7A312 313HR901 S102M101 M102SECTION ELECTRICAL PARTS LISTMDS-JE470 BD Ref. No MDS-JE470 BDMDS-JE470 KEY-SW MAIN DISPLAYMDS-JE470 MAIN MDS-JE470 MAINMDS-JE470 VOL-SELMAIN MDS-JE470 Date MDS-JE470 REVISION HISTORYDescription of Revision 2001.05

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