Sony MDS-JE530 service manual 6, Jig For Checking Bd Board Waveform

Page 6

JIG FOR CHECKING BD BOARD WAVEFORM

The special jig (J-2501-149-A) is useful for checking the waveform of the BD board. The names of terminals and the checking items to be performed are shown as follows.

GND : Ground

I+3V : For measuring IOP (Check the deterioration of the optical pick-up laser)

IOP	: For measuring IOP (Check the deterioration of the optical pick-up laser)
TEO : TRK error signal (Traverse adjustment)
VC	: Reference level for checking the signal
RF	: RF signal (Check jitter)

Mechanism deck

CN110

6P connector

5P Connector

TEO

IOP

I+3V

GND

	1	RF
RF		VC	for
		TEO	MDM-3
VC		IOP	MDM-3
VC		IOP
TEO	5	I-3V
TEO
IOP	1	VC
I+3V		RF
I+3V		TEO	for
		IOP	MDM-5
GND	6	I+3V
	6	GND

– 6 –

Image 6

Contents Supplied accessories SPECIFICATIONSSERVICE MANUAL MDS-JE530SELF-DIAGNOSISFUNCTION – 2 –– 3 – Items of Error History Mode Items and ContentsTable of Error Codes Selecting the Test ModeDISASSEMBLY TABLE OF CONTENTS6.DIAGRAMS ELECTRICAL ADJUSTMENTS– 5 – Flexible Circuit Board RepairingNotes on chip component replacement ADVARSEL– 6 – JIG FOR CHECKING BD BOARD WAVEFORM– 7 – Record PrecedureDisplay Precedure CHECKS PRIOR TO PARTS REPLACEMENT AND ADJUSTMENTS – 8 –Precedure – 9 –RETRY CAUSE DISPLAY MODE Fig. 1 Reading the Test Mode Display– 10 – Hexadecimal nBinary Conversion TableReading the Display LOCATION OF CONTROLS SECTION GENERAL– 11 – This section is extracted from instruction manualPage CASE SECTION DISASSEMBLY– 13 – FRONT PANEL SECTION– 14 – MAIN BOARDMECHANISM DECK SECTTION MDM-5D – 15 – SLIDER CAMBASE UNIT MBU-5D,BD BOARD – 16 – SW BOARD, LOADING MOTOR M103SECTION TEST MODE 1. PRECAUTIONS FOR USE OF TEST MODE2. SETTING THE TEST MODE – 17 –– 18 – 5. SELECTING THE TEST MODE– 19 – 5-1.Operating the Continuous Playback Mode5-3. Non-VolatileMemory Mode EEP MODE – 20 – 6. FUNCTIONS OF OTHER BUTTONS7. TEST MODE DISPLAYS – 21 – MEANINGS OF OTHER DISPLAYSSECTION ELECTRICAL ADJUSTMENTS 1.PARTS REPLACEMENT AND ADJUSTMENT– 22 – Laser power meter 2. PRECAUTIONS FOR CHECKING LASER DIODE EMISSION4. PRECAUTIONS FOR ADJUSTMENTS – 23 –Specification Checking Procedure6-2.Laser Power Check – 24 –– 25 – 6-5.C PLAY Checking MO Error Rate CheckCD Error Rate Check 6-4.Focus Bias Check10. LASER POWER ADJUSTMENT 7. INITIAL SETTING OF ADJUSTMENT VALUE9. TEMPERATURE COMPENSATION OFFSET ADJUSTMENT Setting ProcedureSpecification 11. TRAVERSE ADJUSTMENT– 27 – Adjusting Procedure12.FOCUS BIAS ADJUSTMENT – 28 –Adjusting Procedure 13-1.CD Error Rate Check 13.ERROR RATE CHECK15.AUTO GAIN CONTROL OUTPUT LEVEL ADJUSTMENT 13-2.MO Error Rate Check– BD BOARDSide A – Adjustment Location– 30 – – BD BOARDSide B –– 31 – MDS-JE530 SECTION DIAGRAMS6-1.BLOCK DIAGRAM – MD SERVO Section – – 32 –– 33 – 6-2.BLOCK DIAGRAM – MAIN Section –MDS-JE530 – 34 –– 35 – Note on Printed Wiring BoardNote on Schematic Diagram – 36 – • Circuit Boards Location•See page 36 for Circuit Boards Location 6-4.PRINTED WIRING BOARD – BD Board –– 38 – •Semiconductor Location– 39 – – 40 –MDS-JE530 – 42 – 6-6.SCHEMATIC DIAGRAM – BD Board 2/2 – See•– 41 – MDS-JE530– 43 – 6-7.SCHEMATIC DIAGRAM – SW Board –6-8.PRINTED WIRING BOARD – SW Board – – 44 –– 46 – 6-9.PRINTED WIRING BOARD – MAIN Board – See•– 45 – page 36 for Circuit Boards LocationMDS-JE530 – 47 –– 48 – Page Page 41 Page– 49 – – 50 –MDS-JE530 MDS-JE530 – 51 –– 52 – • Semiconductor LocationMDS-JE530 – 53 –– 54 – Page 47 Page– 56 – •IC Block Diagrams – BD Board –– 55 – IC101M5293L – 57 –IC310 IC431– 58 – 6-14.IC PIN FUNCTION DESCRIPTION– 59 – •BD BOARD IC121 CXD2656R– 60 – – 61 – – 62 – •MAIN BOARD IC501 M30624MG-207FPSYSTEM CONTROLLER– 63 – – 64 – SECTION EXPLODED VIEWS – 65 –1CHASSIS SECTION 51 53 2FRONT PANEL SECTION 61 64 61 63 6166 61 61 59 54 52202 201 – 67 –3MECHANISM SECTION MDM-5D 213 207 223 207263 270 – 68 –4BASE UNIT SECTION MBU-5D 252 254 253SECTION ELECTRICAL PARTS LIST – 69 –DISPLAY – 70 –KEY SW – 71 –DISPLAY MAIN – 72 –KEY SW – 73 – MAIN– 74 – MAINPOWER SW – 75 –MAIN Sony Corporation MDS-JE530– 76 – 9-928-824-11

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