Pin No.

Pin Name

I/O

 

Description

 

 

 

 

 

 

 

 

 

 

35

DSPLAT

O

Serial data latch pulse output to the CXD2726Q (IC100)

 

 

 

 

 

 

 

 

 

36

DSPRST

O

Reset signal output to the CXD2726Q (IC100) “L”: reset

 

 

 

 

 

 

 

 

 

 

 

37

 

NC

O

Not used (open)

 

 

 

 

 

 

 

 

 

 

 

38

DVCC

Power supply terminal (+5V) (for D/A converter)

 

 

 

 

 

 

 

 

 

 

 

 

39

 

DVSS

Ground terminal (for D/A converter)

 

 

 

 

 

 

 

 

 

 

 

 

 

40, 41

 

NC

O

Not used (open)

 

 

 

 

 

 

 

 

 

 

 

42

AVCC

Power supply terminal (+5V) (for analog system)

 

 

 

 

 

 

 

 

 

43

AVRH

I

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

 

 

 

 

 

 

 

 

44

AVRL

I

Reference voltage (0V) input terminal (for A/D converter)

 

 

 

 

 

 

 

 

 

 

 

45

 

AVSS

Ground terminal (for analog system)

 

 

 

 

 

 

 

 

 

 

46

KEYIN0

 

Key input terminal (A/D input) (LSW901 to LSW908, S901 to S904)

 

I

OFF, SOURCE, SOUND EQ, MENU, PTY DSPL, LIST, ENTER, oMODE, SEEK/AMS -

 

 

 

 

.m+ >M, DISC/PRST +, DISC/PRST – keys input

 

 

 

 

 

 

 

 

 

47

KEYIN1

I

Key input terminal (A/D input) (LSW801, LSW909 to LSW917)

 

 

Z, DSO, TA, AF, 6 to 3 SHUF 2, REP 1 keys input

 

 

 

 

 

 

 

 

 

48

RCIN0

I

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

 

 

 

 

 

 

 

 

49

DSTSEL

I

Destination setting terminal (A/D input)

“L”: XR-C7500R/C7500RX: TYPE A,

“M”: XR-C7500R/C7500RX: TYPE C, “H”: XR-C7500R/C7500RX: TYPE B

 

 

 

 

 

 

 

 

 

 

50

QUALITY

I

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

 

 

 

 

 

 

51

FMAGC

I

FM AGC detection signal input from the FM/AM tuner unit (TUX1) (A/D input)

 

 

 

 

 

52

MPTH

I

Multi-path detection signal input from the RDS decoder (IC50) (A/D input)

 

 

 

 

 

 

53

 

VSM

I

FM and AM signal meter voltage detection input from the FM/AM tuner unit (TUX1) (A/D input)

 

 

 

 

 

 

 

 

 

54

 

VCC

Power supply terminal (+5V)

 

 

 

 

 

 

 

 

 

 

55

AMP ON

O

Standby on/off control signal output to the power amplifier (IC700)

 

“L”: standby mode, “H”: amp on

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

56

NS-MASK

O

Discharge control signal output for the noise detection circuit “H”: discharge

 

 

 

 

 

 

 

57

MTLOUT

O

METAL on/off control signal output to the CXA2510AQ (IC250)

“H”: METAL on

 

 

 

 

 

58

 

REEL

I

Rotation detect signal input from supply reel sensor and take-up reel sensor on the deck

 

mechanism

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

59

LM-EJ

O

Motor drive signal output to the loading/tape operation motor drive (IC201)

“H” active

(For the eject direction and reverse side operation) *1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

60

LM-LOD

O

Motor drive signal output to the loading/tape operation motor drive (IC201)

“H” active

(For the loading direction and forward side operation)

*1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

61

CM ON

O

Capstan/reel motor (M901) drive signal output terminal

“H”: motor on

 

 

 

 

 

 

62

TAPE ON

O

Tape system power supply on/off control signal output terminal

“H”: tape on

 

 

 

 

 

 

 

 

 

63

 

VSS

Ground terminal

 

 

 

 

 

 

 

 

 

 

 

 

 

64

 

NC

I

Not used (fixed at “L”)

 

 

 

 

 

 

 

 

 

 

 

 

 

65

 

POS0

I

 

POS0: “L”: EJECT mode, “H”: others mode

 

 

 

 

Tape position (EJECT/FF/REW/REV/

66

 

POS1

I

 

POS1: “L”: FF and FWD mode, “H”: others mode

 

FWD mode) detect input from the tape

67

 

POS2

I

POS2: “L”: REW mode, “H”: others mode

 

operation switch on the deck mechanism

 

 

 

 

POS3: “L”: REV and EJECT mode, “H”: others mode

68

 

POS3

I

 

 

 

 

 

 

 

 

 

 

 

 

69

FLASH-W

I

Internal flash memory data write mode detection signal input terminal “L”: data write mode

Not used (fixed at “H”)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

70

I2C SDA

I/O

Two-way data I2C bus with the FM/AM tuner unit (TUX1), RDS decoder (IC50) and electrical

volume (IC10)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

71

I2C SCL

O

I2C bus clock signal output to the FM/AM tuner unit (TUX1), RDS decoder (IC50) and electrical

volume (IC10)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

72

RCIN1

I

Rotary remote commander shift key input terminal

 

 

 

 

 

 

 

 

 

 

 

 

37

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Image 37
Sony Ericsson XR-C7500RX service manual Dsplat