Sony hcd-sd1 IC PIN Functions, IC701 System Control ∝PD780018AYGF-015-3BA Main Board

Page 36

7-19. IC PIN FUNCTIONS

• IC701 System Control (∝PD780018AYGF-015-3BA) (MAIN Board)

Pin No.

Pin Name

I/O

Function

1

BD POWER

O

CD power control pin, “H”:CD POWER ON

 

 

 

 

2

PANEL SW

I

Front cover open/close switch, “H”:Open glass door, “L”:Close glass door

 

 

 

 

3 to 7

–

I

Not used

 

 

 

 

8

AC.CUT

I

AC power connection signal, “L”:Power is disconnected

 

 

 

 

9

VPP

–

Normally connected to the ground pin

 

 

 

 

10

X2

O

Main system clock output pin (5 MHz)

 

 

 

 

11

X1

I

Main system clock input pin (5 MHz)

 

 

 

 

12

VDD1

–

Positive power supply (+5V)

 

 

 

 

13

XT2

O

Sub system clock output pin (32 kHz)

 

 

 

 

14

XT1

I

Sub system clock output pin (32 kHz)

 

 

 

 

15

RESET

I

System reset input pin, “L”:RESET

 

 

 

 

16, 17

–

I

Not used

 

 

 

 

18

ENCODER A

I

Encoder input pin for jogging

 

 

 

 

19

ENCODER B

I

Encoder input pin for jogging

 

 

 

 

20

RDSCLK

I

RDS clock input pin (Not used)

 

 

 

 

21

RDSDAT

I

RDS data input pin (Not used)

 

 

 

 

22

SCOR

I

SCOR input pin

 

 

 

 

23

VDD0

–

Positive power supply of port (+5V)

 

 

 

 

24

ADREF

–

Reference voltage of A/D converter (+5V)

 

 

 

 

25

KEY1

I

Key input pin (Analog input)

 

 

 

 

26

KEY0

I

Key input pin (Analog input)

 

 

 

 

27 to 30

–

I

Not used

 

 

 

 

31

HP-SW

I

Headphone detection SW, “L”:No HP, “H”:HP

 

 

 

 

32

–

I

Not used

 

 

 

 

33

AVSS

–

A/D converter ground potential

 

 

 

 

34

–

I

Not used

 

 

 

 

35

FL.DAT

O

Serial data output for FL tube control IC (MSM9202-02)

 

 

 

 

36

FL.CLK

O

Serial clock output for FL tube control IC (MSM9202-02)

 

 

 

 

37

FL.LAT

O

Chip select output for FL tube control IC (MSM9202-02)

 

 

 

 

38

FL.RST

O

Reset signal output for FL tube control IC (MSM9202-02)

 

 

 

 

39

–

I

Not used

 

 

 

 

40

VSS1

–

Ground potential other than port and analog

 

 

 

 

41, 42

–

I

Not used

 

 

 

 

43

SQSI

I

CD sub code data input

 

 

 

 

44

–

I

Not used

 

 

 

 

45

SQCK

O

Clock output for reading CD sub code

 

 

 

 

46 to 48

–

I

Not used

 

 

 

 

49

IN-SW

I

CD tray close completion detection input, “L”:CLOSE

 

 

 

 

50

OUT-SW

I

CD tray open completion detection input, “L”:OPEN

 

 

 

 

51

HELP

I

Pin requesting power ON from the PC link adapter (optional), Normally “H”

 

 

 

 

52

FSW

O

Focus gain switch

 

 

 

 

53

SENSE

I

SENSE input pin

 

 

 

 

54

–

I

Not used

 

 

 

 

55

IIC DAT

I/O

System control communication data input/output pin

 

 

 

 

56

IIC CLOCK

I/O

System control communication clock input/output pin

 

 

 

 

57

CD-CLK

O

Serial clock for CD control

 

 

 

 

58

CD-DATA

O

Serial data for CD control

 

 

 

 

59

DF-LAT

O

Chip select signal for DA/DF

 

 

 

 

60

DSP-LAT

O

DSP IC and SSP IC chip select

 

 

 

 

– 54 –

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Page 35 Page 37
Contents Specifications HCD-SD1Flexible Circuit Board Repairing Specification LabelTable of Contents DisassemblyDiagrams Exploded ViewsOpening 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 Section General Front Panel Location of Parts and ControlsSection Disassembly Loading PanelGlass Assy Front Panel Main Board and Tuner UnitCD Mechanism Deck Back PanelDisc Table Optical PICK-UPSection Service Mode Sled Servo ModeInitializing Forced Reset Checking the Sub-ClockSection Test Mode Aging ModeSequence of Aging Mode Section Electrical Adjustments Focus Bias AdjustmentCD Section Curve CheckBalance 1 Track Jump Check Without remote commander Focus/Tracking Gain Adjustment RV102, RV103Adjustment Location Section Diagrams Circuit Boards LocationBlock Diagrams BD Section HCD-SD1Main Section Defb SW Mute SpeakerFor schematic diagrams For printed wiring boardsWaveforms BD Section Indication of transistorSchematic Diagram BD Section See page 22 for Waveforms See page 51 for IC Block DiagramsPrinted Wiring Board BD Section Semiconductor LocationSchematic Diagram Main 1/2 Section Schematic Diagram Main 2/2 Section Printed Wiring Board Main Section Schematic Diagram SUB Section Printed Wiring Board SUB SectionSchematic Diagram Panel Section Printed Wiring Board Panel Section Schematic Diagram AMP Section Printed Wiring Board AMP Section SemiconductorSchematic Diagram Connector Section Loading Motor Schematic Diagram REG Section Printed Wiring Board REG Section IC Block Diagrams BD section IC101 CXA1782BQIC102 BA6397FP IC103 CXD2507AQIC104 PCM1710U-R Main Section IC351 LB1641IC791 P82B715TD.118 IC PIN Functions IC701 System Control ∝PD780018AYGF-015-3BA Main BoardLoad Section Exploded Views Front Panel SectionChassis Section 6465UK,HKMechanism Deck Section CDM13B-5BD19 217Base Unit Section BU-5BD19 254 252 251 256 257 258AMP Section Electrical Parts List ResistorsConnector CHEMI-CONCHEMI-CON Connector Loading S292Main SOCKET, Connector NON-ZIF11P Main Panel Panel PANEL-SW REG REG SUB-TRANS Trans HCD-SD1 Trans Volume Miscellaneous
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