Sony HCD-C5 Auto Gain Control Output Level Adjustment, Adjustment and checking Loacation

Page 44

HCD-C5

16. AUTO GAIN CONTROL OUTPUT LEVEL ADJUSTMENT

Be sure to perform this adjustment when the optical pick-up is replaced.

If the adjustment results becomes “Adjust NG!”, the optical pick-up may be faulty or the servo system circuits may be abnormal.

16-1. CD Auto Gain Control Output Level Adjustment

Procedure:

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

2.Press the . m “R” or M > “R” button to display “AG Set (CD)” (C11).

3.When the ENTER/YES “R” button is pressed, the adjustment will be performed 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)” (C11).

4.Press the MD Z button and take out the check disc.

16-2. MO Auto Gain Control Output Level Adjustment

Procedure:

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

2.Press the . “R” or > “R” button to display “AG Set (MO)” (C10).

3.When the ENTER/YES “R” button is pressed, the adjustment will be performed 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)” (C10).

4.Press the MD Z button and take out the test disc.

Adjustment and checking Loacation:

– BD (MD) BOARD (Component Side) –

– BD (MD) BOARD (Conductor Side) –

D101

IC101

				CN105	1. I+3V
	CN101
				1

2. IOP

	7	3. GND
		3. GND
		4. TE
		5. FE
		6. VC
IC151		7. RF
IC151
IC190

Note: It is useful to use the jig for checking the waveform. (Refer to Servicing Notes on page 6)

44

Image 44

Contents Specifications TT Base AssyOPTIMA-720L1E MDM-7B4MHCD-C5 SELF-DIAGNOSIS FunctionTable of Contents Electrical AdjustmentsDiagrams Exploded Views Electrical Parts ListFlexible Circuit Board Repairing HCD-C5 Section Servicing NoteService Position of the CD Mechanism Deck Service Position of the MD Mechanism DeckJIG for Checking BD MD Board Waveform IOPSection General Parts IdentificationRemote control Parts IdentificationHCD-C5 Section Disassembly SET Bottom PLATE, CaseBottom PLATE, Case Panel BoardCD Mechanism Deck TN-CCD1001Z, BD CD Board CN1Connector Board Front Bracket SECTION, Loading Motor Assy M902 SW Board Feed Motor Assy M903 Rear Damper BracketOptical PICK-UP OPTIMA-720L1E Base Section Spindle Motor Assy M904 Jack BOARD, HP BOARD, Rear CoverUcom BOARD, AMP Power Board Tuner PACK, D. C. FAN M901Audio BOARD, Power BOARD, Power Transformer T900 Connector CN105MD Mechanism Deck MDM-7B4M, MD Digital Board Holder AssyBD MD Board Loading Motor M703, Spindle Motor M701, Sled Motor M702Over Write Head OP-SUB SectionHCD-C5 Section Test Mode Precautions for USE of Test Mode Setting the Test ModeReleasing the Test Mode MD SecitonENTER/YES R Basic Operations of the Test ModeSelecting the Test Mode Operating the Continuous Playback Mode Information Functions of Other ButtonsAutomatic SELF-DIAGNOSIS Function Display Precedure When Memory NG is DisplayedRecord Procedure Checks Prior to Parts Replacement and Adjustments in MD Retry Cause Display Mode in MDCriteria for Determination Measure if unsatisfactory PrecedureExample Reading the Retry Cause DisplayReading the Display Bit When Binary DetailsRF Level Check Section Electrical Adjustments HCD-C5CD Section MD Section Parts Replacement and AdjustmentCheck before replacement Adjustment flow YESPrecautions for Checking Laser Diode Emission Precautions for USE of Optical PICK-UP KMS-260B/260EPrecautions for Adjustments Laser power meterUsing the Continuously Recorded Disc Temperature Compensation Offset CheckLaser Power Check Checks Prior to RepairsTraverse Check Auto CheckOther Checks Self-Recording/playback Check Focus Bias CheckPlay Check Initial Setting of Adjustment Value Temperature Compensation Offset AdjustmentLaser Power Adjustment Recording and Displaying the IOP InformationIop NV Save Traverse AdjustmentMethod of identifying the optical pick-up KMS-260B/260E Read power traverse adjustment Focus Bias Adjustment Error Rate CheckCD Error Rate Check MO Error Rate CheckAuto Gain Control Output Level Adjustment CD Auto Gain Control Output Level AdjustmentMO Auto Gain Control Output Level Adjustment Adjustment and checking LoacationSection Diagrams HCD-C5 Circuit Boards LocationWaveforms AUSBlock Diagram CD Servo Section OPTIMA-720L1EBlock Diagram MD Servo Section APCBlock Diagram Main Section Tape MD-LLocation SemiconductorIC B/D Location Side a Location Side BIC B/D 153 IC201 10K 1/16W Printed Wiring Board Ucom Board Semiconductor LocationDigital Optical Input Speaker IC302 D301 1SS355TE IC602 HCD-C5 IC901 Schematic Diagram Power Section IC102 BA5982FP-E2 BD CD Board IC Block DiagramsIC101 CXD3068Q BD CD Board IC103 CXA2581N-T4 BD CD Board IC201 ∝ DA1360TS MD Digital Board IC141 BH6519FS-E2 BD MD BoardSelstatic TEST1 Reset Bcko Vddd C Rtcb Vddd PREEM0 NC NC TEST2Vssd Vssd C L3DATAIC601 M66004M8FP-200D Panel Board IC PIN Function Description IC101Srdt SensXrst SqsyAsyo AsyiAvdd BiasTEST2 TEST3 Dvss SpfdTEST1 IC701 Reset DA-RESETPLAY-SW REC-SWIC501 SPK-RELAY HelpBvdd BvssSection Exploded Views Overall SectionFront Panel Section Chassis 102 104 111 103 112 114 105 101 106 107 108110 113155 154 156 157 151 158152 155 A-4725-732-A MD Digital BOARD, CompleteCD Mechanism Deck Section TN-CCD1001Z CD Mechanism Deck Secti Front Bracket Section TN-CCD1001Z CD Mechanism Deck Section Base Section TN-CCD1001Z CD Mechanism Deck Section Chassis Section TN-CCD1001Z MD Mechanism Deck MDM-7B4M 761 760 762 763 764 759758 761 757 756 751 753754 755 752AMP Audio Section Electrical Parts List Audio HCD-C5 BD CDCONNECTOR, FFC 29P HCD-C5 BD CDDiode UDZ-TE-17-3.9B Ferrite Bead FerriteBD CD HCD-C5 BD MD HCD-C5 BD MD BD MD Connector Jack HCD-C5 MD DigitalHCD-C5 MD Digital Panel Ferrite Bead / ConductorFerrite 0UH InductorPanel Power Power Ucom CONNECTOR, FFC 16P CONNECTOR, Round Type 6PConnector DIN 8P PIN, Connector 4P DiodeR225 216-841-11 Wire Flat Type 19 Core Switch Detection LimitTRANSFORMER, Power AEP,UK,AUS Hardware ListHCD-C5 Revision History