Sony HCD-PX333 specifications Focus Bias Adjustment, Enter, Yes R

Page 45

8. Press the . “R” or >“R” button so that the waveform of

the oscilloscope becomes the specified value.

 

(When the . “R” or > “R” button is pressed, the

of

“EFB= ” changes and the waveform changes) In this adjustment, waveform varies at intervals of approx. 2%. Adjust the waveform so that the specified value is satisfied as much as possible.

(Write power traverse adjustment)

Traverse Waveform

A

VC

B

Specification A = B

9.Press the ENTER/YES “R” button, and save the adjustment results in the non-volatile memory. (“EFB = SAVE” will be displayed for a moment)

10.“EFB = MO-P” will be displayed.

The optical pick-up moves to the pit area automatically and servo is imposed.

11.Press the . “R” or > “R” button until the waveform of the oscilloscope moves closer to the specified value.

In this adjustment, waveform varies at intervals of approx. 2%. Adjust the waveform so that the specified value is satisfied as much as possible.

Traverse Waveform

A

VC

B

Specification A = B

12.Press the ENTER/YES “R” button, and save the adjustment results in the non-volatile memory. (“EFB = SAVE” will be displayed for a moment)

Next “EF MO ADJUST” (C07) is displayed. The disc stops rotating automatically.

13.Press the Z (MD) button and take out the disc.

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

15.Press the . “R” or > “R” button to display “EF CD ADJUST” (C08).

16.Press the ENTER/YES “R” button to display “EFB = CD”. Servo is imposed automatically.

17.Press the . “R” or >“R” button so that the waveform of the oscilloscope moves closer to the specified value.

In this adjustment, waveform varies at intervals of approx. 2%. Adjust the waveform so that the specified value is satisfied as much as possible.

Traverse Waveform

A

VC

B

Specification A = B

HCD-PX333

18.Press the ENTER/YES “R” button, display “EFB = SAVE” for a moment and save the adjustment results in the non-volatile memory.

Next “EF CD ADJUST” (C08) will be displayed.

19.Press the Z (MD) button and take out the check disc.

Adjustment Location: BD (MD) board (see page 47)

13.FOCUS BIAS ADJUSTMENT

Procedure:

1.Load the continuously-recorded disc. (Refer to “5. USING THE CONTINUOUSLY RECORDED DISC” (See page 40))

2.Press the . “R” or > “R” button to display “CPLAY2 MODE” (C36).

3.Press the ENTER/YES “R” button to display “CPLAY2MID”.

4.Press the MENU/NO “R” button when “C = AD = )” is displayed.

5.Press the . “R” or > “R” button to display “FBIAS ADJUST” (C09).

6.Press the ENTER/YES “R” button to display “ / a = ”. The first four digits indicate the C1 error rate, the two digits after “/ ” indicate ADER, and the 2 digits after “a =” indicate the focus bias value.

7.Press the >“R” button and find the focus bias value at which the C1 error rate becomes about 200 (refer to Note 2).

8.Press the ENTER/YES “R” button to display “ / b = ”.

9.Press the .“R” button and find the focus bias value at which the C1 error rate becomes about 200.

10.Press the ENTER/YES “R” button to display “ / c = ”.

11.Check that the C1 error rate is below 20 and ADER is 00. Then

 

press the

ENTER/YES “R”

button.

12.

If the “(

)” in “ - -

( )” is above 20, press the

 

ENTER/

 

 

 

button.

 

 

 

 

YES “R”

 

 

 

 

 

If below 20, press the

 

 

button and repeat the

 

MENU/NO “R”

 

adjustment from step 2.

 

 

 

13.

Press thet

Z (MD) button and take out the disc.

Note 1: The relation between the C1 error and focus bias is as shown in the following figure. Find points A and B in the following figure using the above adjustment. The focal point position C is auto- matically calculated from points A and B.

Note 2: As the C1 error rate changes, perform the adjustment using the average vale.

C1 error

about 200

Focus bias value

BCA

45

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Contents MDM-7X2A SpecificationsMD Section HCD-PX333 SELF-DIAGNOSIS FunctionHCD-PX333 Items of Error History Mode Items and ContentsError Code Details of Error Table of Error CodesCD Section Electrical Adjustments Table of ContentsDiagrams Model IdentificationHCD-PX333 Section Servicing Notes Cleaning Objective Lens of Optical PICK-UPFor CD For MDService Position IOP JIG for Checking BD MD Board WaveformRecord Procedure When Memory NG is DisplayedChecks Prior to Parts Replacement and Adjustments in MD Criteria for Determination Measure if unsatisfactorySpecified Value Bit Binary Retry Cause Display Mode in MDDecimal Bit When Binary Higher Bits Lower Bits Hexa DetailsHexadecimal Binary CD aging mode sequence CD Aging ModeCD-TEXT Test Disc Checking MethodRestrictions in CD-TEXT Display CD-TEXT Test Disc Recorded Contents and Display Section General HCD-PX333 Parts IdentificationRemote Control This set can be disassembled in the order shown below HCD-PX333 Section DisassemblyFront Panel Section CaseREC BOARD, VOL Board Jack BOARD, BL BOARD, Panel BOARD, LCDBack PANEL, SP BOARD, Tuner TRANSFORMER, Power and DC FANAMP Board Main BOARD, Power BoardOver Write Head HR901, BD MD Board MD Mechanism Deck MDM-7X2ALoading Motor Assy M103 Holder AssyOptical PICK-UP KMS-262 Sled Motor Assy M102CD Mechanism Deck CDM55A-21BD53 Spindle Motor Assy M101Holder BU Assy MD Digital BoardTray CDM, Loading Board Base Unit BU-21BD53, Holder 55-BU21CAM CDM55 HCD-PX333 Section Test Mode Setting the Test Mode MD Seciton Precautions for USE of Test ModeReleasing the Test Mode Basic Operations of the Test ModeCheck Selecting the Test ModeFunctions of Other Buttons Operating the Continuous Playback ModeMID OUTMeanings of Other Displays Test Mode DisplaysInformation Automatic SELF-DIAGNOSIS FunctionHCD-PX333 Section Electrical Adjustments Parts Replacement and AdjustmentCheck before replacement YES Adjustment flowPrecautions for USE of Optical PICK- UP KMS-262A/262E Precautions for Checking Laser Diode EmissionPrecautions for Adjustments Laser power meterTemperature Compensation Offset Check Using the Continuously Recorded DiscLaser Power Check Checks Prior to RepairsAuto Check Other ChecksTraverse Check CD Error Rate Check Play Check MO Error Rate CheckFocus Bias Check Self-Recording/playback CheckTemperature Compensation Offset Adjustment Initial Setting of Adjustment ValueLaser Power Adjustment Recording and Displaying the IOP InformationIop NV Save Traverse AdjustmentFocus Bias Adjustment EnterYES R Auto Gain Control Output Level Adjustment Error Rate CheckCD Auto Gain Control Output Level Adjustment MO Auto Gain Control Output Level AdjustmentAdjustment and checking Loacation Curve Check RF Level CheckBalance Check BD CD Board Conductor Side Memo HCD-PX333 Section Diagrams Block DiagramsMD Servo Section Optical A/D Converter SectionFAN Main SectionST/CD+10V DISPLAY, Power Supply SectionAUS Circuit Boards LocationSide B Schematic Diagram BD CD Board Printed Wiring Board BD MD Board LocationSemiconductor 5959 IC B/D Printed Wiring Board MD Digital Section Schematic Diagram MD Digital /3 See page 79 for IC Block Diagrams See page 79 for IC Block Diagrams Semiconductor Location IC B/D HCD-PX333 Printed Wiring Board SP Board Printed Wiring Board AMP BoardSchematic Diagram AMP Board Schematic Diagram SP Board IC602 Printed Wiring Board PanelSchematic Diagram Panel See page 55 for Circuit Boards Location 7474 Schematic Diagram Power Board BD CD Board BD MD Board WaveformsMD Digital Board Main Board I2SLRCKOUTIC101 CXA2523AR BD MD Board IC Block DiagramsIC141 BH6519FS-E2 BD MD Board IC1005 uDA1360TS MD Digital Board IC931 M62016L Main Board IC PIN Function Description BD MD Board IC151 CXD2662R XWE XcasMvci AsyoFS4 FrdrSrdr SfdrLVL1 ResetLVL0 DarstWR-PWR XeltI2CCLK VCC1VSS3 VCC3VCC4 VSS4Drvdat Reset XT1Drvclk CLKLOD POS IN-SWLOD NEG CLP POSMain Board IC501 ∝PDSS3033AYGF-M18-3BA System Controller GC Power MD/CD PowerTR Relay KBD CHKSircs PC PowerRDS CLK Self WriteREC Board Section Exploded Views58 A-4476-550-A Panel BOARD, Complete LCD601 1-804-371-11 Indicator TUBE, Liquid CrystalChassis 163 152 151154 162 153 156 161 163314 310 309 319 311 305 313308 303357 355 354 352 359365 370 353 366353 369 360 356 359510 505 508 511 504 CD Mechanism Deck Section CDM55A-21BD53506 512 513 522 501 517 514 518 516 502 519 520 515 521HCD-PX333 Section AMP Electrical Parts List TANTAL. Chip HCD-PX333 BD MDElect Chip Diode F1J6TPJack Jack HCD-PX333 Loading Main HCD-PX333 Main AEP,UK MY,SP,HK,AUSCONNECTOR, FFC 31P HCD-PX333 Main MD DigitalMD Digital BOARD, Complete Capacitor MD Digital Panel HCD-PX333 Panel Power HCD-PX333 Power REC HCD-PX333 VOL 111 HCD-PX333 Revision History
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