Sony MDS-JE530 29, Error Rate Check, Focus Bias Check, Auto Gain Control Output Level Adjustment

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13.ERROR RATE CHECK

13.ERROR RATE CHECK

13-1. CD Error Rate Check

Checking Procedure :

1.Load the check disc (MD) TDYS-1.

2.Turn the [ÊÊÊÊÊÊÊÊAMSÊÊÊÊÊÊÊÊ]- ± knob and display “CPLAY MODE” (C30).

3.Press the [YES] button twice and display “CPLAY MID”.

4.The display changes to “C = 13-1. CD Error Rate Check13-2. MO Error Rate Check14. FOCUS BIAS CHECK15.AUTO GAIN CONTROL OUTPUT LEVEL ADJUSTMENT AD = 15-1. CD Auto Gain Control Output Level Adjustment15-2. MO Auto Gain Control Output Level Adjustment ”.

5.Check that the C1 error rate is below 20.

6.Press the [MENU/NO] button, stop playback, press the [ÊÊÊÊÊEJECT]¤ button and take out the check disc.

13-2. MO Error Rate Check

Checking Procedure :

1.Load the test disc (MDW-74/AU-1).

2.Turn the [ÊÊÊÊÊÊÊÊAMSÊÊÊÊÊÊÊÊ]- ± knob and display “CPLAY MODE” (C30).

3.Press the [YES] button and display “CPLAY MID”.

4.The display changes to “C1 = – 29 –Manual backgroundManual backgroundManual background AD = Manual backgroundManual background”.

5.If the C1 error rate is below 50, check that ADER is 00.

6.Press the [MENU/NO] button, stop playback, press the [ÊÊÊÊÊEJECT]¤ button and take out the test disc.

14. FOCUS BIAS CHECK

Change the focus bias and check the focus tolerance amount. Checking Procedure :

1.Load the continuously-recorded disc. (Refer to “5. CREAT-

ING CONTINUOUSLY-RECORDED DISC”)

2.Turn the [ÊÊÊÊÊÊÊÊAMSÊÊÊÊÊÊÊÊ]- ± knob and display “CPLAY MODE” (C30).

3.Press the [YES] button twice and display “CPLAY MID”.

4.Press the [MENU/NO] button when “C = Manual backgroundManual backgroundManual backgroundManual background AD = Manual backgroundManual background” is displayed.

5.Turn the [ÊÊÊÊÊÊÊÊAMSÊÊÊÊÊÊÊÊ]- ± knob and display “FBIAS CHECK” (C05).

6.Press the [YES] button and display “ Manual backgroundManual backgroundManual backgroundManual background /Manual backgroundManual background c = Manual backgroundManual background ”.

The first four digits indicate the C1 error rate, the two digits after [/] indicate ADER, and the 2 digits after [c =] indicate the focus bias value.

Check that the C1 error is below 50 and ADER is below 2.

7.Press the [YES] button and display “ Manual backgroundManual backgroundManual backgroundManual background /Manual backgroundManual background b = Manual backgroundManual background”. Check that the C1 error is about 200 and ADER is below 2.

8.Press the [YES] button and display “ Manual backgroundManual backgroundManual backgroundManual background /Manual backgroundManual background a = Manual backgroundManual background ”. Check that the C1 error is about 200 and ADER is below 2

9.Press the [MENU/NO] button, next press the [ÊÊÊÊÊEJECT]¤ but- ton and take out the disc.

Note 1: If the C1 error and ADER are above other than the specified value at points a (step 8. in the above) or b (step 7. in the above), the focus bias adjustment may not have been carried out prop- erly. Adjust perform the beginning again.

15.AUTO GAIN CONTROL OUTPUT LEVEL ADJUSTMENT

Be sure to perform this adjustment when the pickup is replaced. If the adjustment results becomes “Adjust NG!”, the pickup may be faulty or the servo system circuits may be abnormal.

15-1. CD Auto Gain Control Output Level Adjustment

Adjusting Procedure :

1.Insert the check disc (MD) TDYS-1.

2.Turn the [ÊÊÊÊÊÊÊÊAMSÊÊÊÊÊÊÊÊ]- ± knob to display “AG Set (CD)” (C26).

3.When the [YES] button is pressed, the adjustment will be per- formed automatically.

“Complete!!” will then be displayed momentarily when the value is recorded in the non-volatile memory, after which the display changes to “AG Set (CD)”.

4.Press the [ÊÊÊÊÊEJECT]¤ button and take out the check disc.

15-2. MO Auto Gain Control Output Level Adjustment

Adjusting Procedure :

1.Insert the test disc (MDW-74/AU-1) for recording.

2.Turn the [ÊÊÊÊÊÊÊÊAMSÊÊÊÊÊÊÊÊ]- ± knob to display “AG Set (MO)” (C25).

3.When the [YES] button is pressed, the adjustment will be per- formed automatically.

“Complete!!” will then be displayed momentarily when the value is recorded in the non-volatile memory, after which the display changes to “AG Set (MO)”.

4.Press the [ÊÊÊÊÊEJECT]¤ button and take out the test disc.

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Contents SERVICE MANUAL SPECIFICATIONSSupplied accessories MDS-JE530– 2 – SELF-DIAGNOSISFUNCTIONTable of Error Codes Items of Error History Mode Items and Contents– 3 – Selecting the Test Mode6.DIAGRAMS TABLE OF CONTENTSDISASSEMBLY ELECTRICAL ADJUSTMENTSNotes on chip component replacement Flexible Circuit Board Repairing– 5 – ADVARSELJIG FOR CHECKING BD BOARD WAVEFORM – 6 –Display Precedure – 7 –Record Precedure – 8 – CHECKS PRIOR TO PARTS REPLACEMENT AND ADJUSTMENTSRETRY CAUSE DISPLAY MODE – 9 –Precedure Fig. 1 Reading the Test Mode DisplayReading the Display – 10 –Hexadecimal nBinary Conversion Table – 11 – SECTION GENERALLOCATION OF CONTROLS This section is extracted from instruction manualPage – 13 – SECTION DISASSEMBLYCASE FRONT PANEL SECTIONMECHANISM DECK SECTTION MDM-5D – 14 –MAIN BOARD BASE UNIT MBU-5D,BD BOARD – 15 –SLIDER CAM SW BOARD, LOADING MOTOR M103 – 16 –2. SETTING THE TEST MODE 1. PRECAUTIONS FOR USE OF TEST MODESECTION TEST MODE – 17 –5. SELECTING THE TEST MODE – 18 –5-3. Non-VolatileMemory Mode EEP MODE – 19 –5-1.Operating the Continuous Playback Mode 7. TEST MODE DISPLAYS – 20 –6. FUNCTIONS OF OTHER BUTTONS MEANINGS OF OTHER DISPLAYS – 21 –– 22 – SECTION ELECTRICAL ADJUSTMENTS1.PARTS REPLACEMENT AND ADJUSTMENT 4. PRECAUTIONS FOR ADJUSTMENTS 2. PRECAUTIONS FOR CHECKING LASER DIODE EMISSIONLaser power meter – 23 –6-2.Laser Power Check Checking ProcedureSpecification – 24 –CD Error Rate Check 6-5.C PLAY Checking MO Error Rate Check– 25 – 6-4.Focus Bias Check9. TEMPERATURE COMPENSATION OFFSET ADJUSTMENT 7. INITIAL SETTING OF ADJUSTMENT VALUE10. LASER POWER ADJUSTMENT Setting Procedure– 27 – 11. TRAVERSE ADJUSTMENTSpecification Adjusting ProcedureAdjusting Procedure 12.FOCUS BIAS ADJUSTMENT– 28 – 15.AUTO GAIN CONTROL OUTPUT LEVEL ADJUSTMENT 13.ERROR RATE CHECK13-1.CD Error Rate Check 13-2.MO Error Rate Check– 30 – Adjustment Location– BD BOARDSide A – – BD BOARDSide B –6-1.BLOCK DIAGRAM – MD SERVO Section – MDS-JE530 SECTION DIAGRAMS– 31 – – 32 –MDS-JE530 6-2.BLOCK DIAGRAM – MAIN Section –– 33 – – 34 –Note on Schematic Diagram – 35 –Note on Printed Wiring Board • Circuit Boards Location – 36 –– 38 – 6-4.PRINTED WIRING BOARD – BD Board –•See page 36 for Circuit Boards Location •Semiconductor LocationMDS-JE530 – 39 –– 40 – – 41 – 6-6.SCHEMATIC DIAGRAM – BD Board 2/2 – See•– 42 – MDS-JE5306-8.PRINTED WIRING BOARD – SW Board – 6-7.SCHEMATIC DIAGRAM – SW Board –– 43 – – 44 –– 45 – 6-9.PRINTED WIRING BOARD – MAIN Board – See•– 46 – page 36 for Circuit Boards Location– 48 – – 47 –MDS-JE530 Page Page 41 PageMDS-JE530 – 49 –– 50 – – 52 – – 51 –MDS-JE530 • Semiconductor Location– 54 – – 53 –MDS-JE530 Page 47 Page– 55 – •IC Block Diagrams – BD Board –– 56 – IC101IC310 – 57 –M5293L IC4316-14.IC PIN FUNCTION DESCRIPTION – 58 –•BD BOARD IC121 CXD2656R – 59 –– 60 – – 61 – •MAIN BOARD IC501 M30624MG-207FPSYSTEM CONTROLLER – 62 –– 63 – – 64 – 1CHASSIS SECTION SECTION EXPLODED VIEWS– 65 – 66 61 61 2FRONT PANEL SECTION 61 64 61 63 6151 53 59 54 523MECHANISM SECTION MDM-5D 213 207 – 67 –202 201 223 2074BASE UNIT SECTION MBU-5D 252 – 68 –263 270 254 253– 69 – SECTION ELECTRICAL PARTS LIST– 70 – DISPLAYDISPLAY KEY SW– 71 – KEY SW MAIN– 72 – MAIN – 73 –MAIN – 74 –MAIN POWER SW– 75 – – 76 – MDS-JE530Sony Corporation 9-928-824-11
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