Sony MDX-C5970R service manual 63

Models: MDX-C5970 MDX-C5970R

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Pin No.

Pin Name

I/O

Function

 

 

 

 

 

 

 

46

D1

I/O

 

 

 

 

 

 

 

 

 

47

D0

I/O

Two-way data bus with the D-RAM (IC307)

 

 

 

 

 

 

 

48

D2

I/O

 

 

 

 

 

 

 

 

 

 

 

49

D3

I/O

 

 

 

 

 

 

 

 

50

MVCI

I

Digital in PLL oscillation input from the external VCO

Not used (fixed at “L”)

 

 

 

 

 

 

51

ASYO

O

Playback EFM full-swing output terminal

 

 

 

 

 

 

52

ASYI

I (A)

Playback EFM asymmetry comparator voltage input terminal

 

 

 

 

 

 

53

AVDD

Power supply terminal (+3.3V) (analog system)

 

 

 

 

 

 

54

BIAS

I (A)

Playback EFM asymmetry circuit constant current input terminal

 

 

 

 

55

RFI

I (A)

Playback EFM RF signal input from the CXA2523R (IC302)

 

 

 

 

 

 

56

AVSS

Ground terminal (analog system)

 

 

 

 

 

 

57

PDO

O (3)

Phase comparison output for clock playback analog PLL of the playback EFM Not used (open)

 

 

 

 

58

PCO

O (3)

Phase comparison output for master clock of the recording/playback EFM master PLL

 

 

 

 

59

FILI

I (A)

Filter input for master clock of the recording/playback master PLL

 

 

 

 

60

FILO

O (A)

Filter output for master clock of the recording/playback master PLL

 

 

 

 

61

CLTV

I (A)

Internal VCO control voltage input of the recording/playback master PLL

 

 

 

 

62

PEAK

I (A)

Light amount signal (RF/ABCD) peak hold input from the CXA2523R (IC302)

 

 

 

 

63

BOTM

I (A)

Light amount signal (RF/ABCD) bottom hold input from the CXA2523R (IC302)

 

 

 

 

64

ABCD

I (A)

Light amount signal (ABCD) input from the CXA2523R (IC302)

 

 

 

 

 

65

FE

I (A)

Focus error signal input from the CXA2523R (IC302)

 

 

 

 

 

66

AUX1

I (A)

Auxiliary signal (I3 signal/temperature signal) input terminal Not used (fixed at “H”)

 

 

 

 

67

VC

I (A)

Middle point voltage (+1.65V) input from the CXA2523R (IC302)

 

 

 

 

 

68

ADIO

O (A)

Monitor output of the A/D converter input signal

Not used (open)

 

 

 

 

 

 

69

AVDD

Power supply terminal (+3.3V) (analog system)

 

 

 

 

 

 

70

ADRT

I (A)

A/D converter operational range upper limit voltage input terminal (fixed at “H” in this set)

 

 

 

 

71

ADRB

I (A)

A/D converter operational range lower limit voltage input terminal (fixed at “L” in this set)

 

 

 

 

 

 

72

AVSS

Ground terminal (analog system)

 

 

 

 

 

 

 

73

SE

I (A)

Sled error signal input from the CXA2523R (IC302)

 

 

 

 

 

 

74

TE

I (A)

Tracking error signal input from the CXA2523R (IC302)

 

 

 

 

 

75

AUX2

I (A)

Auxiliary signal input terminal Light amount signal input from the CXA2523R (IC302)

 

 

 

 

 

 

76

DCHG

I (A)

Connected to the +3.3V power supply

 

 

 

 

 

 

 

77

APC

I (A)

Error signal input for the laser automatic power control

Not used (fixed at “L”)

 

 

 

 

78

ADFG

I

ADIP duplex FM signal (22.05 kHz ± 1 kHz) input from the CXA2523R (IC302)

 

 

 

 

 

79

F0CNT

O

Filter f0 control signal output terminal Not used (open)

 

 

 

 

 

80

XLRF

O

Serial data latch pulse signal output terminal Not used (open)

 

 

 

 

 

81

CKRF

O

Serial data transfer clock signal output terminal

Not used (open)

 

 

 

 

 

82

DTRF

O

Writing serial data output terminal Not used (open)

 

 

 

 

 

83

APCREF

O

Control signal output to the reference voltage generator circuit for the laser automatic power

control

 

 

 

 

 

 

 

 

 

 

 

 

84

LDDR

O

PWM signal output for the laser automatic power control

Not used (open)

 

 

 

 

85

TRDR

O

Tracking servo drive PWM signal (–) output to the BH6511FS (IC303)

 

 

 

 

86

TFDR

O

Tracking servo drive PWM signal (+) output to the BH6511FS (IC303)

 

 

 

 

 

 

87

DVDD

Power supply terminal (+3.3V) (digital system)

 

 

 

 

 

 

88

FFDR

O

Focus servo drive PWM signal (+) output to the BH6511FS (IC303)

89

FRDR

O

Focus servo drive PWM signal (–) output to the BH6511FS (IC303)

 

 

 

 

 

90

FS4

O

Clock signal (176.4 kHz) output terminal (X’tal system)

Not used (open)

 

 

 

 

91

SRDR

O

Sled servo drive PWM signal (–) output to the BH6511FS (IC303)

 

 

 

 

 

 

– 63 –

Page 43
Image 43
Sony MDX-C5970R service manual 63