Manuals / Sony / Home Audio / MiniDisc Player

Sony MDS-S50 specifications Pt Board, MDS-JE470, Vol-Selboard

Models: MDS-S50

1 70

Download 70 pages 10.4 Kb

Page 48

Image 48

MDS-JE470

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	9
						SP
								S990
A								VOLTAGE SELECT
A
						VOL-SEL BOARD		115V	230V
							S990
						CN990
						5	4	3	2	1
B														AC IN
B												12
										1-681-738-		12
										1-681-738-		(12)
PT BOARD												(12)
PT BOARD
	LP900											JW901	EXCEPT SP
												JW901
				TR900
				TR900		CN950
						CN950
			13	1	JW904	1	2	3		4		5
						1	2	3		4		5

C
C			12
	CN921		12	2			JW903							CN900
	CN921													CN900
												EXCEPT SP
						C910	SP
	1
											JW902
			11
								TR950


C924	C923		10	3		RY910		1		2		4	LF900
													LF900


	5	WIRE(10P)	9
			9
D				4
D			8	*
F			8
F
MAIN BOARD			7	5
MAIN BOARD
CN400
CN400
(Page45)	11		6			D910
			6			D910				6	8
			C952							6	8
EP900			C952	* NOT REPLACEABLE:											12
			C951	BUILT IN TRANSFORMER										1-681-734-	12
			C951												(12)

E
E
(CHASSIS)
					48	48

Page 48

Image 48

Sony MDS-S50 specifications Pt Board, MDS-JE470, Vol-Selboard

Contents

SPECIFICATIONS I nputsOutputs MDS-JE470MDS-JE470 SELF-DIAGNOSISFUNCTIONGeneral Power requirements Supplied accessoriesITEMS OF ERROR HISTORY MODE ITEMS AND CONTENTS MDS-JE470Selecting the Test Mode TABLE OF CONTENTS 3. DISASSEMBLY6. DIAGRAMS 7. EXPLODED VIEWSMDS-JE470 SECTION SERVICE NOTES SAFETY CHECK-OUTLEAKAGE Notes on chip component replacementJIG FOR CHECKING BD BOARD WAVEFORM MDS-JE470MDS-JE470 Record PrecedureDisplay Precedure OPTICAL PICK-UPBLOCK TYPE DISCRIMINATION MDS-JE470KSN-260B KSN-260ECHECKS PRIOR TO PARTS REPLACEMENT AND ADJUSTMENTS FORCED RESET@CN406 ProcedureRETRY CAUSE DISPLAY MODE ProcedureMDS-JE470 MDS-JE470 Reading the DisplayReading the Display Hexadecimal t Binary Conversion TableMDS-JE470 SECTION GENERAL BUTTON DESCRIPTIONSMain unit Parts IdentificationMDS-JE470 SECTION DISASSEMBLY 3-1.DISASSEMBLY FLOW3-2.UPPER CASE 3-3.FRONT PANEL SECTION3Connector CN830 2 Connector CN390 1Wire flat type 17core CN3 5Claw3-4.MAIN BOARD 3-5.PT BOARD, VOL-SELBOARD SP model6Two screws +BVTP3x8 3 Connector CN400 2 Wire flat type 23core CN13-6.MECHANISM DECK SECTION MDM-7A 3-7.OVER LIGHT HEAD HR901, BD BOARDMDS-JE470 4 Remove the solder five portion3-8.HOLDER ASSY 3-9.LOADING MOTOR ASSY M103MDS-JE470 2 Claw3-10.SLED MOTOR ASSY M102, SLIDER 3-11.OPTICAL PICK-UPMDS-JE470 5 Remove the claw Shift the slider in the arrow3-12.SPINDLE MOTER ASSY M101 MDS-JE4702Spindle motor ASSY M101 1 Three screws M1.7, tapping4-1.PRECAUTIONS FOR USE OF TEST MODE 4-2.SETTING THE TEST MODEMDS-JE470 SECTION TEST MODE 4-3.EXITING THE TEST MODE4-5.SELECTING THE TEST MODE MDS-JE470Display GroupMDS-JE470 4-5-1.Operating the Continuous Playback Mode4-6.FUNCTIONS OF OTHER BUTTONS 4-7.TEST MODE DISPLAYS2. Error rate display MDS-JE4704-11.WHEN MEMORY NG IS DISPLAYED 4-8.MEANINGS OF OTHER DISPLAYS4-9.AUTOMATIC SELF-DIAGNOSISFUNCTION 4-10.INFORMATIONMDS-JE470 SECTION ELECTRICAL ADJUSTMENTS 5-1.PARTS REPLACEMENT AND ADJUSTMENTCheck before replacement Adjustment flow MDS-JE4705-2.PRECAUTIONS FOR CHECKING LASER DIODE EMISSION 5-4.PRECAUTIONS FOR ADJUSTMENTSMDS-JE470 Optical pick-upflexible board5-5.USING THE CONTINUOUSLY RECORDED DISC 5-6.CHECKS PRIOR TO REPAIRS5-6-1.Temperature Compensation Offset Check Checking ProcedureProcedure Checking ProcedureMDS-JE470 5-6-4.Auto CheckChecking Procedure 5-6-8.C PLAY Check MO Error Rate CheckChecking Procedure CD Error Rate Check5-7.INITIAL SETTING OF ADJUSTMENT VALUE 5-9.TEMPERATURE COMPENSATION OFFSET ADJUTMENT5-10.LASER POWER ADJUSTMENT 5-8.RECORDING AND DISPLAYING THE Iop INFORMATION5-12.TRAVERSE ADJUSTMENT ProcedureAdjusting Procedure MDS-JE4705-13.FOCUS BIAS ADJUSTMENT Adjusting ProcedureMDS-JE470 5-14.ERROR RATE CHECK 5-16.AUTO GAIN CONTROL OUTPUT LEVEL ADJUSTMENT5-15.FOCUS BIAS CHECK 5-14-1.CD Error Rate Check5-17.ADJUSTING POINTS AND CONNECTING POINTS MDS-JE470BD BOARD SIDE A BD BOARD SIDE BMDS-JE470 SECTION DIAGRAMS 6-1.CIRCUIT BOARDS LOCATIONPT board KEY-SWboard MAIN board DISPLAY board BD boardFor schematic diagrams For printed wiring boardsMDS-JE470 WAVEFORMS -BD Board6-2.BLOCK DIAGRAMS - BD SECTION MDS-JE470IC171 IC190MAIN SECTION IC310IC550 IC781MAIN BOARD LocationPage BD BOARD SIDE ABD BOARD 2/2 Page BD BOARD 2/2 Page BD BOARD 2/2 MDS-JE470Page KMS - 260B/260EBOARD MDS-JE470MDS-JE470 BD BOARD2/2 CN102 Page42DISPLAY BOARD CN701 Page47 7MAIN BOARD 82/26-7.SCHEMATIC DIAGRAM - MAIN SECTION 2/2 See page 51 for IC Block DiagramsMDS-JE470 MAINMDS-JE470 LocationSemiconductor MDS-JE470 LocationSemiconductor 6-10.SCHEMATIC DIAGRAM - DISPLAY SECTION MDS-JE470PT BOARD MDS-JE470VOL-SELBOARD 6-12.SCHEMATIC DIAGRAM - POWER SECTION 4949MDS-JE470 6-13.IC BLOCK DIAGRAMS MDS-JE470IC101 CXA2523AR BD BOARD IC151 CXD2662R BD BOARDMDS-JE470 IC500 AK4524 MAIN BOARDIC440 M54641L MAIN BOARD IC421 M5293L MAIN BOARD6-14.IC PIN FUNCTION DESCRIPTION MDS-JE470IC101 CXA2523AR RF Amplifier BD BOARD Pin NoMDS-JE470 Pin NoPin Name DesriptionPLL Phase Locked Loop MDS-JE470Pin No Pin NameMDS-JE470 Pin NoPin Name DescriptionMDS-JE470 IC1 M30803MG-107FPSYSTEM CONTROL MAIN BOARDPin No Pin NameMDS-JE470 ADA. LATCHMDS-JE470 BEEP SWSECTION EXPLODED VIEWS 7-1.CHASSIS SECTIONMDS-JE470 7-2.FRONT PANEL SECTION MDS-JE470FL750 7-3.MECHANISM SECTION-1 MDM-7A MDS-JE470312 313S102 HR901M101 M102ELECTRICAL PARTS LIST SECTIONMDS-JE470 BD MDS-JE470 BD Ref. NoDISPLAY MDS-JE470 KEY-SW MAINMDS-JE470 MAIN MAIN MDS-JE470VOL-SEL MDS-JE470MAIN MDS-JE470 MDS-JE470 REVISION HISTORY DateDescription of Revision 2001.05

VOL-SEL BOARD

PT BOARD