XR-C5200R, XR-C5300R, XR-C5300RX - Sony Car Audio Service Manual (repair manual). Page 29

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Pin No.

Pin Name

I/O

Description

46

KEYIN0

I

Key input terminal (A/D input) (LSW901 to LSW907, S901 to S904)
OFF, SOURCE, SOUND, MENU, PTY DSPL, MODE  o, ENTER, SEEK/AMS . m –,
PRST DISC+, SEEK/AMS > M +, PRST DISC- keys input

47

KEYIN1

I

Key input terminal (A/D input) (LSW801, LSW909 to LSW917)
Z, D-BASS, TA, AF, 6, 5, 4, 3, SHIFT 2, REP 1

 keys input

48

RC-IN0

I

Rotary remote commander key input terminal (A/D input)

49

DSTSEL

I

Destination setting terminal (fixed at “L”)

50

QUALITY

I

Noise level detection signal input at SEEK mode (A/D input)

51

FMAGC

I

FM AGC level detection signal input from the FM/AM tuner unit (TU1) (A/D input)

52

MPTH

I

Multi-path detection signal input from the RDS decoder (IC51)

53

VSM

I

FM and AM signal meter voltage detection input from the FM/AM tuner unit (TU1)
(A/D input)

54

VCC

—

Power supply terminal (+5V)

55

RAMBU

I

Internal RAM reset detection signal input terminal
Input terminal to check that RAM data are not destroyed due to low voltage
This checking is made within 100 msec after reset    Fixed at “H” in this set

56

TUNATT

O

Muting on/off control signal output of the FM and AM tuner signal    “H”: muting on

57

VOL ATT

O

Muting control signal output to the electrical volume (IC331)
Volume minimum: “

∞

” output (“H” active)

58

ATT

O

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

59

AMP ON

O

Standby on/off control signal output to the power amplifier (IC611)
“L”: standby mode, “H”: amp on

60

AMP ATT

O

Muting on/off control signal output to the power amplifier (IC611)    “L”: muting on

61

COLSW

I

Setting terminal for the illumination color    “L”: 2 colors, “H”: 1 color
(fixed at “L” in XR-C5200R/C5300R, fixed at “H” in XR-C5300RX)

62

COLSEL

I

Setting terminal for the illumination color    “L”: amber, “H”: green

63

VSS

—

Ground terminal

64

DAVN

I

Data transmit completed detect signal input from the RDS decoder (IC51)    “H” active

65

FILE

I

Setting terminal for the custom file    (fixed at “L” in this set)

66

TEXT

I

Setting terminal for the CD text    (fixed at “L” in this set)

67

NOSESW

I

Front panel block remove/attach detection signal input terminal
“L”: front panel is attached

68, 69

NCO

O

Not used (open)

70

I2C SIO

I/O

Two-way data bus with the RDS decoder (IC51), electrical volume (IC331) and FM/AM tuner
unit (TU1)

71

I2C CKO

O

Bus clock signal output to the RDS decoder (IC51), electrical volume (IC331) and FM/AM tuner
unit (TU1)

72

NCO

O

Not used (open)

73

X1A

O

Sub system clock output terminal (32.768 kHz)

74

X0A

I

Sub system clock input terminal (32.768 kHz)

75

NCO

O

Not used (open)

76

KEYACK

I

Input of acknowledge signal for the key entry    Acknowledge signal is input to accept function
and eject keys in the power off status    On at input of “H”

77

BU-IN

I

Battery detect signal input from the SONY bus interface (IC701) and battery detect circuit
“L” is input at low voltage

78

ILL IN

I

Auto dimmer control illumination line detection signal input terminal
“L” is input at dimmer detection    Fixed at “L” in this set

79

TEL-ATT

I

Telephone muting signal input terminal    At input of “H”, the signal is attenuated by –20 dB
Used for XR-C5300R/C5300RX