CDX-T6NV - Sony Car Audio Service Manual (repair manual). Page 30

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Pin No.

Pin Name

I/O

Description

54

NC

O

Not used

55

HS

O

Normal/high speed playback control signal output terminal    “L”: high speed playback
Not used

56

SQSO

I

Subcode Q data input from the DSP

57

NC

O

Not used

58

SQCK

O

Subcode Q data reading clock signal output to the DSP

59

CDCLK

O

Serial data transfer clock signal output to the DSP

60

CDLAT

O

Serial data latch pulse signal output to the DSP

61

CDDAT

O

Serial data output to the DSP

62

XRST

O

System reset signal output to the DSP    “L”: reset

63

XQOK

O

Subcode Q OK pulse signal output terminal    Not used

64

XRDE

O

D-RAM read enable signal output terminal    Not used

65

XWRE

O

D-RAM write enable signal output terminal    Not used

66

EMPH

O

Emphasis control signal output to the DSP    “H”: emphasis on

67

MUTE

O

Audio line muting on/off control signal output    “H”: muting on

68

RAMA10

O

Address signal output to the S-RAM    Not used

69

RAMCS

O

Chip select enable output to the S-RAM    Not used

70 to 74

RAMIO7 to 

RAMIO3

I/O

Two-way data bus with the S-RAM    Not used

75

RESET

I

System reset signal input from the SONY bus interface and reset signal generator    “L”: reset
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”

76

RAMIO2

I/O

Two-way data bus with the S-RAM    Not used

77

X1A

O

Sub system clock output terminal    Not used

78

X0A

I

Sub system clock input terminal    Not used

79

VSS

—

Ground terminal

80

X0

I

Main system clock input terminal (4 MHz)

81

X1

O

Main system clock output terminal (4 MHz)

82

VCC

—

Power supply terminal

83, 84

RAMIO1, RAMIO0

I/O

Two-way data bus with the S-RAM    Not used

85 to 88

RAMA0 to RAMA3

O

Address signal output to the S-RAM    Not used

89

SINGLE

I

Setting terminal for the single disc/multiple discs mode
“L”: single disc mode, “H”: multiple discs mode (fixed at “H” in this set)

90

6/10 SEL

I

Setting terminal for the 6 discs changer/10 discs changer model
“L”: 10 discs changer model, “H”: 6 discs changer model (fixed at “H” in this set)

91

CFSEL

I

Custom file on/off setting terminal    “L”: custom file on    Not used

92

TEXTSEL

I

CD text mode setting terminal
“L”: CD text on, “H”: does not display track name    Not used

93

ESPSEL

I

ESP mode setting terminal    “L”: ESP on    Not used

94

TEST

I

Test on/off setting terminal    “L”: test mode    Not used

95

MAG SW

I

Magazine detect switch input terminal    “L”: magazine is set

96

SAVE SW

I

Chucking end detect switch input terminal
“L”: When completion of the disc chucking, loading or save operation

97

LOAD SW

I

Chucking end detect switch input terminal
“L”: When completion of the disc chucking, loading or save operation

98

LIM SW

I

Sled limit in detect switch input terminal
“L”: When the optical pick-up is inner position

99

RW SEL

O

CD-ROM/RW selection signal output    “L”: CD-RW, “H”: CD-ROM

100

RAMA4

O

Address signal output to the S-RAM    Not used