Manuals / Sony / Home Audio / CD Player

Sony MDS-NT1 IC401, BH6519FS-E2, MAIN Board, IC400, MAX1626ESA-TE2, IC420, M62016FP-E1

Models: MDS-NT1

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MDS-NT1

IC401

BH6519FS-E2

CAPA–

CAPA+

IN2R

IN2F

VM2

OUT2F

PGND2

OUT2R

VM12

OUT1R

PGND1

OUT1F

VM1

IN1F

IN1R

VDD

INTERFACE

AMP

INTERFACE

VDD

CHARGE

PREDRIVE

PUMP.

OSC

PREDRIVE

INTERFACE

AMP

INTERFACE

PSB

GND

IN4R

IN4F

VM4

OUT4F

PGND4

OUT4R

VM34

OUT3R

PGND3

OUT3F

VM3

IN3F

IN3R

PSB

– MAIN Board –

IC400		MAX1626ESA-TE2
										8	GND
										7	EXT
				1.5V
				ERROR		MINIMUM ON-TIME
				ERROR			ONE-SHOT
			COMPARATOR				ONE-SHOT
		R2	COMPARATOR				TRIG	Q
OUT	1	R2		–			TRIG	Q
OUT	1			–
				+
							TRIG	Q
		R3	R1			MINIMUM OFF-TIME
							ONE-SHOT
3/5	2
				+
SHDN	3			REF	Q
					R		S
REF	4
								–		6	CS
						CURRENT-SENSE		+	– +	5	V+
						COMPARATOR
IC420		M62016FP-E1
		VCC		NC	NC	NC
		3		4	5	6
	R1		COM	INTERRUPT
			COM
			+
			+	SIGNAL		8	INT
			–	SIGNAL		8	INT
			–	GENERATOR
	R2			GENERATOR
	R2
R3
			COM	RESET
			+	RESET		1	RESET
			+	SIGNAL
			–	SIGNAL
R4			–	GENERATOR
R4				GENERATOR
			7		2
			GND		CD

Page 49

Image 49

Sony MDS-NT1 service manual IC401, BH6519FS-E2, MAIN Board, IC400, MAX1626ESA-TE2, IC420, M62016FP-E1

Contents

MDS-NT1 SPECIFICATIONSMINIDISC DECK AEP ModelMDS-NT1 SELF-DIAGNOSISFUNCTION MDS-NT1 ITEMS OF ERROR HISTORY MODE ITEMS AND CONTENTSJOG DOWN Selecting the Test ModeMDS-NT1 Table of Error Codes3.DISASSEMBLY TABLE OF CONTENTS6.DIAGRAMS SELF-DIAGNOSISFUNCTIONFlexible Circuit Board Repairing Notes on chip component replacementMDS-NT1 MDS-NT1 SECTION SERVICING NOTES CLEANING OBJECTIVE LENS OF OPTICAL PICK-UPNOTES ON LASER DIODE EMISSION CHECK NOTES ON REPLACING BD BOARD OR MD MECHANISM DECKMDS-NT1 JIG FOR CHECKING BD BOARD WAVEFORMDisplay Procedure Record ProcedureMDS-NT1 MDS-NT1 Laser power checkProcedure SERVICE MODESoftware Reset Microcomputer Version DisplayLOCATION OF CONTROLS MDS-NT1 SECTION GENERALFront View 3-1.DISASSEMBLY FLOW MDS-NT1 SECTION DISASSEMBLYMDS-NT1 3-2.CASE UPPER3-4.MD MECHANISM DECK MDM-7S2B 3-3.MAIN BOARD1wire flat type 7 core CN104 3 screw BVTP3 ⋅ 1wire flat type 23 core CN102MDS-NT1 3-5.FRONT PANEL SECTION3-6.BD BOARD, OVER WRITE HEAD HR901 3-8.LOADING MOTOR ASSY M103 3-7.HOLDER ASSYMDS-NT1 6 holder assy3-10.OPTICAL PICK-UP KMS-262E 3-9.SLED MOTOR ASSY M102MDS-NT1 MDS-NT1 3-11.SPINDLE MOTOR ASSY M1012spindle motor assy M101 1 three screws M1.7 4-2.SETTING THE TEST MODE 4-1.PRECAUTIONS FOR USE OF TEST MODEMDS-NT1 SECTION TEST MODE 4-3.RELEASING THE TEST MODEMDS-NT1 4-5.SELECTING THE TEST MODEDisplay DetailsMDS-NT1 4-5-1.Operating the Continuous Playback Mode4-7.INFORMATION 4-6.AUTOMATIC SELF-DIAGNOSISFUNCTIONProcedure Procedure5-1.PARTS REPLACEMENT AND ADJUSTMENT MDS-NT1 SECTION ELECTRICAL ADJUSTMENTSCheck before replacement MDS-NT1 Adjustment flowMDS-NT1 5-2.PRECAUTIONS FOR CHECKING LASER DIODE EMISSION1 Laser power meter 5-5.PRECAUTIONS FOR ADJUSTMENTSMDS-NT1 5-7-1.Temperature Compensation Offset Check 5-6.USING THE CONTINUOUSLY RECORDED DISCChecking Procedure 5-7-2.Laser Power Check5-7-5.Other Checks 5-7-4.Auto Check5-7-6.Traverse Check ProcedureCD Error Rate Check 5-7-8.C PLAY Check MO Error Rate Check5-7-7.Focus Bias Check 5-7-9. Self-Recording/playbackCheck5-10.TEMPERATURE COMPENSATION OFFSET ADJUSTMENT 5-8.INITIAL SETTING OF ADJUSTMENT VALUE5-11.LASER POWER ADJUSTMENT Setting ProcedureENTER/YES to save it 5-13.TRAVERSE ADJUSTMENT5-12.Iop NV SAVE ProcedureENTER/YES button 5-14.FOCUS BIAS ADJUSTMENTAdjusting Procedure MDS-NT15-17.AUTO GAIN CONTROL OUTPUT LEVEL ADJUSTMENT 5-15.ERROR RATE CHECK5-15-1.CD Error Rate Check 5-15-2.MO Error Rate CheckMDS-NT1 Adjustment and Checking LoacationBD BOARD Component Side BD BOARD Conductor Side6-1.BLOCK DIAGRAM - SERVO Section MDS-NT1 SECTION DIAGRAMSSIGNAL PATH PLAY REC SWDT, SCLKSIGNAL PATH 6-2.BLOCK DIAGRAM - MAIN SectionMDS-NT1 PLAY RECMAIN Board Waveforms - BD BoardSignal path E PLAY l REC MDS-NT1MDS-NT1 Page MDS-NT1SWDTPage MDS-NT1Page PageIC503 IC402IC501 IC420MDS-NT1 IC440Page Page MDS-NT1Page MDS-NT1 Page MDS-NT1 6-12.SCHEMATIC DIAGRAM - PANEL BoardPage IC101 IC Block Diagrams - BD BoardCXA2523AR MDS-NT1BH6519FS-E2 IC401MAIN Board IC400M54641L IC440IC451 XC6351A120MRMDS-NT1 6-13.IC PIN FUNCTION DESCRIPTIONMDS-NT1 BD BOARD IC201 CXD2664R42 to MDS-NT1LDDR MDS-NT1MDS-NT1 MAIN BOARD IC301 M30835FJGP-01SYSTEM CONTROLLERPLAY-SW MDS-NT1MDS-NT1 MAIN BOARD IC301EXTAL MDS-NT1EXPLODED VIEWS SECTION7-1.CASE SECTION MDS-NT1MDS-NT1 7-2.FRONT PANEL SECTION104 7-3.CASE B SECTIONMDS-NT1 311 7-4.MD MECHANISM DECK SECTION-1 MDM-7S2B302 306 320 302 305362 7-5.MD MECHANISM DECK SECTION-2 MDM-7S2B353 366MDS-NT1 ELECTRICAL PARTS LISTSECTION Ref. No MDS-NT1MDS-NT1 MAINMAIN MDS-NT1Ref. No MDS-NT1 PANELMAIN Ref. No MDS-NT1MDS-NT1 REVISION HISTORYDate Description of Revision