DOWNLOAD Sony HCD-V3900 / HCD-V5900 / LBT-V3900 / LBT-V5900 Service Manual ↓ Size: 10.73 MB | Pages: 88 in PDF or view online for FREE

— 75 —

Pin No.

Pin Name

I/O

Function

44

COM-DOUT

O

Serial data output to the electrical volume (IC201) and key control (IC501)

45

COM-CLK

O

Serial data transfer clock signal output to the electrical volume (IC201) and key control (IC501)

46

CD-POWER

O

Power on/off selection signal output for the CD circuit    “H”: power on

47

CD-DATA

O

Serial data output terminal    Not used (open)

48

CD-CLK

O

Serial data transfer clock signal output terminal    Not used (open)

49

MSM-CND

O

Command data output terminal    Not used (open)

50

MSM-BUSY

I

Busy signal input terminal    “L”: busy    Not used (fixed at “L”)

51

MSM-LAT

O

Serial data latch pulse output terminal    Not used (open)

52

MSM-NAR          O

NAR signal output terminal    Not used (open)

53

MSM-CH

O

Channel select output terminal    Not used (open)

54

INPUT-

CHANGE

O

Input gain control signal output terminal    “L”: VIDEO, “H”: MD    Not used (open)

55

IIC-DATA

I/O

Communication data bus with the fluorescent indicator tube driver (IC601) and IIC interface
controller (IC901)

56

IIC-CLK

I/O

Communication data reading clock signal input or transfer clock signal output with the
fluorescent indicator tube driver (IC601) and IIC interface controller (IC901)

57

XRST

O

Reset signal output to the IIC interface controller (IC901)    “L”: reset

58

XLT

O

Serial data latch pulse output terminal    Not used (open)

59

FOCUS-SW

O

Focus control signal output terminal    Not used (open)

60

TBL-L

O

Motor drive signal output to the disc tray turn motor driver (IC201)

61

TBL-R

O

Motor drive signal output to the disc tray turn motor driver (IC201)

62

TRAY-LED

O

LED on/off control signal output for the CD tray LED    “H”: LED on

63

LOAD-OUT

O

Motor drive signal output terminal    Not used (open)

64

LOAD-IN

O

Motor drive signal output terminal    Not used (open)

65

ST-CLK

O

PLL serial data transfer clock signal output to the FM/AM tuner unit

66

ST-DIN

I

PLL serial data input from the FM/AM tuner unit

67

ST-DOUT

O

PLL serial data output to the FM/AM tuner unit

68

ST-CE

O

PLL chip enable signal output to the FM/AM tuner unit

69

TUNED

I

Tuning detection signal input from the FM/AM tuner unit    “L”: TUNED

70

STEREO

I

FM stereo detection signal input from the FM/AM tuner unit    “L”: STEREO

71

VSS

—

Ground terminal

72

ST-MUTE

O

Tuner mute control signal output to the FM/AM tuner unit    “L”: mute on

73

SENS2

I

Internal status (SENSE) signal input terminal    Not used (fixed at “L”)

74

SENS

I

Internal status (SENSE) signal input terminal    Not used (fixed at “L”)

75

DISC-SENS

I

Disc status detection signal input terminal    Not used (open)

76

T-SENS

I

Disc tray status detection signal input from the disc tray sensor (IC202)

77

UPSW

I

Detection input from the up switch (S201)

78

ENC3

I

79

ENC2

I

Tray address detect signal input terminal    Not used (open)

80

ENC1

I

81

OUT-OPEN

I

Disc tray open/close detect signal input terminal    “L”: open, “H”: close    Not used (open)

82

CAP-H/N

O

High/normal speed selection signal output of the capstan motor (M1)
“L”: high speed, “H”: normal speed

83

A-TRG

O

Motor drive signal output to the trigger motor driver (IC1502)

84

B-TRG

O

Motor drive signal output to the trigger motor driver (IC1502)

85

TRG-LOW

O

Motor control signal output to the trigger motor driver (IC1502)

86

CAP-M-ON/OFF

O

Capstan motor on/off control signal output terminal    “L”: capstan motor on

— 76 —

Pin No.

Pin Name

I/O

Function

87

PB-A/B

O

Deck-A/B selection signal output to the HA12203NT (IC1501)    “L”: deck-A, “H”: deck-B

88

EQ-H/N

O

Normal/high speed selection signal output to the HA12203NT (IC1501)
“L”: normal speed, “H”: high speed

89

BIAS

O

Recording bias on/off selection signal output to the HA12203NT (IC1501)
“L”: bias off, “H”: bias on

90

REC-MUTE

O

Recording mute on/off selection signal output to the HA12203NT (IC1501)
“L”: mute on, “H”: mute off

91

NR-ON/OFF

O

Dolby NR on/off selection signal output to the HA12203NT (IC1501)
“L”: dolby off, “H”: dolby on

92

R/P-PASS

O

Recording/playback/pass selection signal output to the HA12203NT (IC1501)

93

TC-MUTE

O

Line mute on/off selection signal output to the HA12203NT (IC1501)
“L”: mute off, “H”: mute on

94

A-PLAY-SW

I

Detection input from the deck- A play detect switch (S1001)    “H”: deck-A play

95

B-PLAY-SW

I

Detection input from the deck- B play detect switch (S1002)    “H”: deck-B play

96

RELAY

O

Recording/playback select signal output to the REC/PB switch (IC602)
“L”: playback, “H”: recording

97

A-HALF

I

Detection input from the deck-A cassette detect switch (S1004)
“L”: cassette in, “H”: no cassette

98

POWER

O

On/off selection signal output of the main power supply    “L”: power on

99

SW-F-CON

O

Control signal output of the super woofer mode    “H”: music, “L”: movie

100

STK-MUTE

O

Power amplifier on/off selection signal output terminal    “L”: on, “H”: standby

— 77 —

Pin No.

Pin Name

I/O

Function

1

LED3

O

LED drive signal output terminal (SUPER WOOFER, P (CD))

2

LED4

O

LED drive signal output terminal (·  (CD))

3

LED5

O

LED drive signal output terminal (deck-B ª  / · )

4

LED6

O

LED drive signal output terminal (P / r REC (TAPE))

5

LED7

O

LED drive signal output terminal (EFFECT, ENTER)

6

LED8

O

LED drive signal output terminal (FILE 1/2)

7

VSS

—

Ground terminal

8

X-OUT

O

System clock output terminal (8 MHz)

9

X-IN

I

System clock input terminal (8 MHz)

10

RESET

I

System reset signal input from the reset signal generator (IC302)

“L”: reset

For several

hundreds msec. after the power supply rises, “L” is input, then it changes to “H”

11

LED9

O

LED drive signal output terminal    Not used (connected to ground)

12

LED10

O

LED drive signal output terminal    Not used (connected to ground)

13

TEST

I

Connected to ground

14

LED11

O

LED drive signal output terminal (FILE 3/4)

15

LED12

O

LED drive signal output terminal (FILE 5, P FILE)

16

LED13

O

LED drive signal output terminal (MENU 2/1)

17

LED14

O

LED drive signal output terminal (KEY CONTROL)

18

LED15

O

LED drive signal output terminal (decck-A ·  / ª )

19

LED16

O

LED drive signal output terminal (CD NON-STOP, VCD)

20

VOL-A

I

Rotary encoder pulse input from the S701 (VOLUME)

21

DOOR SW

I

CD door switch (S691 (6 OPEN)) input terminal

22

JOG-A

I

Jog dial pulse input from the S711 (≠  AMS ± )

23

CLOCK

I/O

 

Communication data reading clock signal input or transfer clock signal output with the master
controller (IC301) and IIC interface controller (IC901)

24

DATA

I/O

Communication data bus with the master controller (IC301) and IIC interface controller
(IC901)

25

LED SELECT

O

LED selection signal output terminal

26

MODEL

I

Destination setting terminal

27

KEY-1

I

28

KEY-2

I

29

KEY-3

I

30

KEY-4

I

31

LED17

O

LED drive signal output terminal (PBC, AUTO PBC)

32

L+R

I

Spectrum analyzer drive signal input terminal (for high frequency)

Key input terminal (A/D input) (S601 to 608, 651 to 659)
ENTER/NEXT, TUNER MEMORY, TUNING MODE, TUNER/BAND, TUNING +/–, 
STEREO/MONO, FUNCTION, deck-B (·  / ª  / ) / 0 / p), P , r REC,
H SPEED DUB, CD SYNC

Key input terminal (A/D input) (S609 to 615, 676 to 679, 681 to 686)
GROOVE, GEQ 4 / 9 / ( / $ , SUPER WOOFER, SUPER W MODE, CD (·  / p /
P), DISC SKIP, CD ()), REPEAT, PLAY MODE, 1/ALL DISCS, EDIT, CD (0)

Key input terminal (A/D input) (S616 to 618, 641 to 647, 661 to 666, 670, 671)
GEQ CONTROL, ENTER, EFFECT, deck-A (·  / ª  / p / 0 / )), DOLBY NR, 
DIRECTION, DISC 1 to DISC 5, CD FLASH, PREV, NEXT

Key input terminal (A/D input) (S619 to 626, 628 to 633, 667 to 669)
SPECTRUM ANALYZER, DISPLAY/DEMO, POWER. CLOCK SET, REC, DAILY 1/2, 
SLEEP, WAVE, KARAOKE PON/MPX, SURROUND, P FILE MEMORY, n, ˜ ,
CD NON-STOP, CD LOOP, RETURN

— 78 —

Pin No.

Pin Name

I/O

Function

33

SIRCS

I

Sircs input from the remote control receiver (IC602)

34

VOL-B

I

Rotary encoder pulse input from the S701 (VOLUME)

35

JOG-B

I

Jog dial pulse input from the S711 (≠  AMS ± )

36

SPEANA-1

I

37

SPEANA-2

I

38

VASS

—

Ground terminal

39

VAREF

I

Reference voltage (+5V) input terminal (for A/D conversion)

40

VDD

—

Power supply terminal (+5V)

41

—

—

Not used (open)

42 to 56

GR-1 to GR-15

O

Grid drive signal output to the fluorescent indicator tube (FL601)

57 to 77

SEG-1 to        

SEG-21

O

Segment drive signal output to the fluorescent indicator tube (FL601)

78

VKK

—

Power supply terminal (–30 V) (for fluorescent indicator tube drive)

79

LED1

O

LED drive signal output terminal (TUNER/BAND)

80

LED2

O

LED drive signal output terminal (ENTER/NEXT, GROOVE)

Spectrum analyzer drive signal input terminal (A/D input)