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

 

 

 

 

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