Sony hcd-sd1 Balance 1 Track Jump Check Without remote commander, Adjustment Location

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E-F Balance (1 Track Jump) Check (Without remote commander)

oscilloscope

BD (CD) board
TP (TEO)	+
TP (VC)	–

Procedure :

1.Connect oscilloscpe to test point TP (TEO) on BD board.

2.Turn Power switch on.

3.Put disc (YEDS-18) in to play the number five track.

4.Press the “ P(Pause)” button. (Becomes the 1 track jump mode)

5.Confirm that the oscilloscope waveform is symmetrical on the top and bottom in relation to 0Vdc, and check this level.

1 track jump waveform

A

0V

B

LEVEL : 300 ± 100 mVp-p

A – B

Specified level: • 2 (A + B) x 100 = less than ± 7%

• A + B = 300 ± 100 mVp-p

Focus/Tracking Gain Adjustment (RV102, RV103)

This gain has a margin, so even if it is slightly off. There is no problem.

Therfore, do not perform this adjustment.

Please note that it should be fixed to mechanical center position when you moved and do not know original position.

Adjustment Location:

[BD (CD) BOARD] — Component Side —

RF

		FOK
	(Focus Bias Adjust)
RV101		IC102
	TEI	IC102
	IC101
RV103
TEO	FEO
TEO	FEI
VC	RV102
VC

IC104

PCK

GND

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Contents HCD-SD1 SpecificationsSpecification Label Flexible Circuit Board RepairingExploded Views Table of ContentsDisassembly DiagramsOpening the Disc Tray When Power is OFF Attaching the Glass AssemblySection Servicing Note Move the SUB-TRANS board and Connector board Position for Servicing the CD Mechanism Deck Front Panel Location of Parts and Controls Section GeneralSection Disassembly Loading PanelGlass Assy Main Board and Tuner Unit Front PanelBack Panel CD Mechanism DeckOptical PICK-UP Disc TableChecking the Sub-Clock Section Service ModeSled Servo Mode Initializing Forced ResetSection Test Mode Aging ModeSequence of Aging Mode Curve Check Section Electrical AdjustmentsFocus Bias Adjustment CD SectionBalance 1 Track Jump Check Without remote commander Focus/Tracking Gain Adjustment RV102, RV103Adjustment Location Circuit Boards Location Section DiagramsHCD-SD1 Block Diagrams BD SectionDefb SW Mute Speaker Main SectionIndication of transistor For schematic diagramsFor printed wiring boards Waveforms BD SectionSee page 22 for Waveforms See page 51 for IC Block Diagrams Schematic Diagram BD SectionSemiconductor Location Printed Wiring Board BD SectionSchematic Diagram Main 1/2 Section Schematic Diagram Main 2/2 Section Printed Wiring Board Main Section Printed Wiring Board SUB Section Schematic Diagram SUB SectionSchematic Diagram Panel Section Printed Wiring Board Panel Section Schematic Diagram AMP Section Semiconductor Printed Wiring Board AMP SectionSchematic Diagram Connector Section Loading Motor Schematic Diagram REG Section Printed Wiring Board REG Section IC103 CXD2507AQ IC Block DiagramsBD section IC101 CXA1782BQ IC102 BA6397FPIC104 PCM1710U-R Main Section IC351 LB1641IC791 P82B715TD.118 IC701 System Control ∝PD780018AYGF-015-3BA Main Board IC PIN FunctionsLoad Front Panel Section Section Exploded Views6465UK,HK Chassis Section217 Mechanism Deck Section CDM13B-5BD19254 252 251 256 257 258 Base Unit Section BU-5BD19Resistors AMP Section Electrical Parts ListCHEMI-CON ConnectorS292 CHEMI-CON Connector LoadingMain SOCKET, Connector NON-ZIF11P Main Panel Panel PANEL-SW REG REG SUB-TRANS Trans Miscellaneous HCD-SD1 Trans Volume