Sony MDS-JE530 Section Servicing Notes, 4, Table Of Contents, Diagrams, Self-Diagnosisfunction

Page 4
TABLE OF CONTENTS

 

TABLE OF CONTENTS

 

SELF-DIAGNOSIS FUNCTION

2

1.

SERVICING NOTES

4

2.

GENERAL

11

3.

DISASSEMBLY

13

4.

TEST MODE

17

5.

ELECTRICAL ADJUSTMENTS

22

6.DIAGRAMS

6-1.

Block Diagram – MD SERVO Section –

31

6-2.

Block Diagram – MAIN Section –

33

6-3. Note for Printed Wiring Boards and

 

 

Schematic Diagrams

35

6-4.

Printed Wiring Board – BD Board –

37

6-5.

Schematic Diagram – BD Board (1/2) –

39

6-6.

Schematic Diagram – BD Board (2/2) –

41

6-7.

Schematic Diagram – SW Board –

44

6-8.

Printed Wiring Board – SW Board –

44

6-9.

Printed Wiring Board – MAIN Board –

45

6-10.

Schematic Diagram – MAIN Board (1/2) –

47

6-11.

Schematic Diagram – MAIN Board (2/2) –

49

6-12.

Printed Wiring Boards – PANEL Section –

51

6-13.

Schematic Diagram – PANEL Section –

53

6-14.

IC Pin Function Description

58

7.

EXPLODED VIEWS

65

8.

ELECTRICAL PARTS LIST

69

SECTION 1

SERVICING NOTES

SAFETY CHECK-OUT

After correcting the original service problem, perform the follow- ing safety check before releasing the set to the customer:

Check the antenna terminals, metal trim, “metallized” knobs, screws, and all other exposed metal parts for AC leakage. Check leakage as described below.

LEAKAGE TEST

The AC leakage from any exposed metal part to earth ground and from all exposed metal parts to any exposed metal part having a return to chassis, must not exceed 0.5 mA (500 microampers.). Leakage current can be measured by any one of three methods.

1.A commercial leakage tester, such as the Simpson 229 or RCA WT-540A. Follow the manufacturers’ instructions to use these instruments.

2.A battery-operated AC milliammeter. The Data Precision 245 digital multimeter is suitable for this job.

3.Measuring the voltage drop across a resistor by means of a VOM or battery-operated AC voltmeter. The “limit” indica- tion is 0.75 V, so analog meters must have an accurate low- voltage scale. The Simpson 250 and Sanwa SH-63Trd are ex- amples of a passive VOM that is suitable. Nearly all battery operated digital multimeters that have a 2 V AC range are suit- able. (See Fig. A)

To Exposed Metal

Parts on Set

0.15 ∝F

 

 

 

1.5 k Ω

AC

 

 

 

voltmeter

 

 

 

 

 

(0.75 V)

 

 

 

 

 

 

Earth Ground

Fig. A. Using an AC voltmeter to check AC leakage.

MODEL IDENTIFICATION

— BACK PANEL —

Part No.

Model

Part No.

AEP, UK models

4-216-907-0¹

US model

4-216-907-2¹

Canadian model

4-216-907-3¹

Singapore model

4-216-907-5¹

– 4 –

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Contents SPECIFICATIONS SERVICE MANUALSupplied accessories MDS-JE530SELF-DIAGNOSISFUNCTION – 2 –Items of Error History Mode Items and Contents Table of Error Codes– 3 – Selecting the Test ModeTABLE OF CONTENTS 6.DIAGRAMSDISASSEMBLY ELECTRICAL ADJUSTMENTSFlexible Circuit Board Repairing Notes on chip component replacement– 5 – ADVARSEL– 6 – JIG FOR CHECKING BD BOARD WAVEFORMRecord Precedure – 7 –Display Precedure CHECKS PRIOR TO PARTS REPLACEMENT AND ADJUSTMENTS – 8 –– 9 – RETRY CAUSE DISPLAY MODEPrecedure Fig. 1 Reading the Test Mode DisplayHexadecimal nBinary Conversion Table – 10 –Reading the Display SECTION GENERAL – 11 –LOCATION OF CONTROLS This section is extracted from instruction manualPage SECTION DISASSEMBLY – 13 –CASE FRONT PANEL SECTIONMAIN BOARD – 14 –MECHANISM DECK SECTTION MDM-5D SLIDER CAM – 15 –BASE UNIT MBU-5D,BD BOARD – 16 – SW BOARD, LOADING MOTOR M1031. PRECAUTIONS FOR USE OF TEST MODE 2. SETTING THE TEST MODESECTION TEST MODE – 17 –– 18 – 5. SELECTING THE TEST MODE5-1.Operating the Continuous Playback Mode – 19 –5-3. Non-VolatileMemory Mode EEP MODE 6. FUNCTIONS OF OTHER BUTTONS – 20 –7. TEST MODE DISPLAYS – 21 – MEANINGS OF OTHER DISPLAYS1.PARTS REPLACEMENT AND ADJUSTMENT SECTION ELECTRICAL ADJUSTMENTS– 22 – 2. PRECAUTIONS FOR CHECKING LASER DIODE EMISSION 4. PRECAUTIONS FOR ADJUSTMENTSLaser power meter – 23 –Checking Procedure 6-2.Laser Power CheckSpecification – 24 –6-5.C PLAY Checking MO Error Rate Check CD Error Rate Check– 25 – 6-4.Focus Bias Check7. INITIAL SETTING OF ADJUSTMENT VALUE 9. TEMPERATURE COMPENSATION OFFSET ADJUSTMENT10. LASER POWER ADJUSTMENT Setting Procedure11. TRAVERSE ADJUSTMENT – 27 –Specification Adjusting Procedure– 28 – 12.FOCUS BIAS ADJUSTMENTAdjusting Procedure 13.ERROR RATE CHECK 15.AUTO GAIN CONTROL OUTPUT LEVEL ADJUSTMENT13-1.CD Error Rate Check 13-2.MO Error Rate CheckAdjustment Location – 30 –– BD BOARDSide A – – BD BOARDSide B –MDS-JE530 SECTION DIAGRAMS 6-1.BLOCK DIAGRAM – MD SERVO Section –– 31 – – 32 –6-2.BLOCK DIAGRAM – MAIN Section – MDS-JE530– 33 – – 34 –Note on Printed Wiring Board – 35 –Note on Schematic Diagram – 36 – • Circuit Boards Location6-4.PRINTED WIRING BOARD – BD Board – – 38 –•See page 36 for Circuit Boards Location •Semiconductor Location– 40 – – 39 –MDS-JE530 6-6.SCHEMATIC DIAGRAM – BD Board 2/2 – See• – 41 –– 42 – MDS-JE5306-7.SCHEMATIC DIAGRAM – SW Board – 6-8.PRINTED WIRING BOARD – SW Board –– 43 – – 44 –6-9.PRINTED WIRING BOARD – MAIN Board – See• – 45 –– 46 – page 36 for Circuit Boards Location– 47 – – 48 –MDS-JE530 Page Page 41 Page– 50 – – 49 –MDS-JE530 – 51 – – 52 –MDS-JE530 • Semiconductor Location– 53 – – 54 –MDS-JE530 Page 47 Page•IC Block Diagrams – BD Board – – 55 –– 56 – IC101– 57 – IC310M5293L IC431– 58 – 6-14.IC PIN FUNCTION DESCRIPTION– 59 – •BD BOARD IC121 CXD2656R– 60 – – 61 – – 62 – •MAIN BOARD IC501 M30624MG-207FPSYSTEM CONTROLLER– 63 – – 64 – – 65 – SECTION EXPLODED VIEWS1CHASSIS SECTION 2FRONT PANEL SECTION 61 64 61 63 61 66 61 6151 53 59 54 52– 67 – 3MECHANISM SECTION MDM-5D 213 207202 201 223 207– 68 – 4BASE UNIT SECTION MBU-5D 252263 270 254 253SECTION ELECTRICAL PARTS LIST – 69 –DISPLAY – 70 –– 71 – KEY SWDISPLAY – 72 – MAINKEY SW – 73 – MAIN– 74 – MAIN– 75 – POWER SWMAIN MDS-JE530 – 76 –Sony Corporation 9-928-824-11
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