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Sony MDS-NT1 service manual SCHEMATIC DIAGRAM - PANEL Board, Page

Models: MDS-NT1

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MDS-NT1

6-12. SCHEMATIC DIAGRAM – PANEL Board –

	R732	R751
	150	150
						CN704
D732		D751				7P
D732		D751
SEL5820A-TP15		SML-010MT-T87			SYS+3.5V
Net MD		(PLAY)			PANEL.GND
					PANEL.GND
					LED1
					LED2
				R726	LED3
				4.7k	LED3
				4.7k
					KEY1
	Q732	Q751	S726		KEY0	(Page 44)
	UN5211-TX	UN5211-TX				(Page 44)

	LED DRIVE	LED DRIVE
TP701	C748	R731
TP701	0.1	150
	0.1	150
		D731

	(CHASSIS)	SML-010VT-T87
	(CHASSIS)	(REC)
		(REC)
		R702
		2.2k
		S702
		Q731
		UN5211-TX
		LED DRIVE

Page 47

Image 47

Sony MDS-NT1 service manual SCHEMATIC DIAGRAM - PANEL Board, Page

Contents

AEP Model SPECIFICATIONSMDS-NT1 MINIDISC DECKMDS-NT1 SELF-DIAGNOSISFUNCTION Selecting the Test Mode ITEMS OF ERROR HISTORY MODE ITEMS AND CONTENTSMDS-NT1 JOG DOWNMDS-NT1 Table of Error CodesSELF-DIAGNOSISFUNCTION TABLE OF CONTENTS3.DISASSEMBLY 6.DIAGRAMSMDS-NT1 Notes on chip component replacementFlexible Circuit Board Repairing NOTES ON REPLACING BD BOARD OR MD MECHANISM DECK CLEANING OBJECTIVE LENS OF OPTICAL PICK-UPMDS-NT1 SECTION SERVICING NOTES NOTES ON LASER DIODE EMISSION CHECKMDS-NT1 JIG FOR CHECKING BD BOARD WAVEFORMMDS-NT1 Record ProcedureDisplay Procedure MDS-NT1 Laser power checkMicrocomputer Version Display SERVICE MODEProcedure Software ResetFront View MDS-NT1 SECTION GENERALLOCATION OF CONTROLS 3-1.DISASSEMBLY FLOW MDS-NT1 SECTION DISASSEMBLYMDS-NT1 3-2.CASE UPPER1wire flat type 23 core CN102 3-3.MAIN BOARD3-4.MD MECHANISM DECK MDM-7S2B 1wire flat type 7 core CN104 3 screw BVTP3 ⋅3-6.BD BOARD, OVER WRITE HEAD HR901 3-5.FRONT PANEL SECTIONMDS-NT1 6 holder assy 3-7.HOLDER ASSY3-8.LOADING MOTOR ASSY M103 MDS-NT1MDS-NT1 3-9.SLED MOTOR ASSY M1023-10.OPTICAL PICK-UP KMS-262E 2spindle motor assy M101 1 three screws M1.7 3-11.SPINDLE MOTOR ASSY M101MDS-NT1 4-3.RELEASING THE TEST MODE 4-1.PRECAUTIONS FOR USE OF TEST MODE4-2.SETTING THE TEST MODE MDS-NT1 SECTION TEST MODEDetails 4-5.SELECTING THE TEST MODEMDS-NT1 DisplayMDS-NT1 4-5-1.Operating the Continuous Playback ModeProcedure 4-6.AUTOMATIC SELF-DIAGNOSISFUNCTION4-7.INFORMATION ProcedureCheck before replacement MDS-NT1 SECTION ELECTRICAL ADJUSTMENTS5-1.PARTS REPLACEMENT AND ADJUSTMENT MDS-NT1 Adjustment flowMDS-NT1 5-2.PRECAUTIONS FOR CHECKING LASER DIODE EMISSIONMDS-NT1 5-5.PRECAUTIONS FOR ADJUSTMENTS1 Laser power meter 5-7-2.Laser Power Check 5-6.USING THE CONTINUOUSLY RECORDED DISC5-7-1.Temperature Compensation Offset Check Checking ProcedureProcedure 5-7-4.Auto Check5-7-5.Other Checks 5-7-6.Traverse Check5-7-9. Self-Recording/playbackCheck 5-7-8.C PLAY Check MO Error Rate CheckCD Error Rate Check 5-7-7.Focus Bias CheckSetting Procedure 5-8.INITIAL SETTING OF ADJUSTMENT VALUE5-10.TEMPERATURE COMPENSATION OFFSET ADJUSTMENT 5-11.LASER POWER ADJUSTMENTProcedure 5-13.TRAVERSE ADJUSTMENTENTER/YES to save it 5-12.Iop NV SAVEMDS-NT1 5-14.FOCUS BIAS ADJUSTMENTENTER/YES button Adjusting Procedure5-15-2.MO Error Rate Check 5-15.ERROR RATE CHECK5-17.AUTO GAIN CONTROL OUTPUT LEVEL ADJUSTMENT 5-15-1.CD Error Rate CheckBD BOARD Conductor Side Adjustment and Checking LoacationMDS-NT1 BD BOARD Component SideSWDT, SCLK MDS-NT1 SECTION DIAGRAMS6-1.BLOCK DIAGRAM - SERVO Section SIGNAL PATH PLAY RECPLAY REC 6-2.BLOCK DIAGRAM - MAIN SectionSIGNAL PATH MDS-NT1MDS-NT1 Waveforms - BD BoardMAIN Board Signal path E PLAY l RECMDS-NT1 Page MDS-NT1Page MDS-NT1SWDTPage PageIC420 IC402IC503 IC501MDS-NT1 IC440Page MDS-NT1Page Page MDS-NT1 Page Page 6-12.SCHEMATIC DIAGRAM - PANEL BoardMDS-NT1 MDS-NT1 IC Block Diagrams - BD BoardIC101 CXA2523ARIC400 IC401BH6519FS-E2 MAIN BoardXC6351A120MR IC440M54641L IC451MDS-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-NT1MDS-NT1 SECTIONEXPLODED VIEWS 7-1.CASE SECTIONMDS-NT1 7-2.FRONT PANEL SECTIONMDS-NT1 7-3.CASE B SECTION104 305 7-4.MD MECHANISM DECK SECTION-1 MDM-7S2B311 302 306 320 302366 7-5.MD MECHANISM DECK SECTION-2 MDM-7S2B362 353SECTION ELECTRICAL PARTS LISTMDS-NT1 Ref. No MDS-NT1MDS-NT1 MAINRef. No MDS-NT1MAIN MAIN PANELMDS-NT1 Ref. No MDS-NT1Description of Revision REVISION HISTORYMDS-NT1 Date