Sony hcd-sd1 service manual Move the SUB-TRANS board and Connector board

Page 5

POSITIONS FOR SERVICING THE CONNECTOR BOARD, SUB-TRANS BOARD, CHEMI-CON BOARD, AND AMP BOARD

1Remove the four screws securing the upper cover, and remove the upper cover.

2Remove the loading panel. (Refer to SECTION 3 DISASSEM- BLY.)

3Remove the four screws Asecuring the MAIN board, five screws

Bsecuring the rear panel, two flat cables (CN701, CN702), and open the MAIN board as shown in the figure.

4 Remove the two screws C securing the heat sink, and remove	D C
the AMP board and CHEMI-CON board.

5Remove the two screws D securing the SUB-TRANS board

	and four screws E securing the CONNECTOR board, and re-	Heat sink
	move the SUB-TRANS board and CONNECTOR board.	Heat sink
	move the SUB-TRANS board and CONNECTOR board.
	6 Return the MAIN board to its original position.

7Insulate these boards and the MAIN board with paper, etc., and

assemble the CONNECTOR board, SUB-TRANS board, CHEMI-CON board, and AMP board on these boards.

SUB-TRANS board

AMP board

CHEMI-CON board

CONNECTOR board

B

B

E

MAIN board

Flat type wire (CN701)

A

A

Flat type wire (CN702)

Should be insulatable with paper, etc.

– 5 –

Image 5

Contents HCD-SD1 SpecificationsSpecification Label Flexible Circuit Board RepairingDisassembly Table of ContentsDiagrams Exploded ViewsSection Servicing Note Opening the Disc Tray When Power is OFFAttaching the Glass Assembly Move the SUB-TRANS board and Connector board Position for Servicing the CD Mechanism Deck Front Panel Location of Parts and Controls Section GeneralGlass Assy Section DisassemblyLoading Panel Main Board and Tuner Unit Front PanelBack Panel CD Mechanism DeckOptical PICK-UP Disc TableSled Servo Mode Section Service ModeInitializing Forced Reset Checking the Sub-ClockSequence of Aging Mode Section Test ModeAging Mode Focus Bias Adjustment Section Electrical AdjustmentsCD Section Curve CheckAdjustment Location Balance 1 Track Jump Check Without remote commanderFocus/Tracking Gain Adjustment RV102, RV103 Circuit Boards Location Section DiagramsHCD-SD1 Block Diagrams BD SectionDefb SW Mute Speaker Main SectionFor printed wiring boards For schematic diagramsWaveforms BD Section Indication of transistorSee 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 BD section IC101 CXA1782BQ IC Block DiagramsIC102 BA6397FP IC103 CXD2507AQIC791 P82B715TD.118 IC104 PCM1710U-RMain Section IC351 LB1641 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