Sony MZ-R37 KEY3, KEY2, KEY1, Xint REC SW, LCD Reset, Fsi Nc, Spoff, Rsi, SDI1, SDO1, SCK1, Beep

Page 23

Pin No.

Pin name

I/O

 

Pin Description

50

AVSS

Ground terminal for A/D converter.

 

 

 

 

 

51

AVREF

I

 

A/D converter reference voltage input.

 

 

 

 

52

AVDD

A/D converter power supply terminal.

 

 

 

 

 

53

VLG2-MNT

I

 

DSP power monitor signal.

 

 

 

 

 

54

TEMP

I

 

Temp meter (IC802) input.

 

 

 

 

 

55

KEY3

I

 

Key input.

 

 

 

 

 

56

KEY2

I

 

Key input.

 

 

 

 

 

57

KEY1

I

 

Key input.

 

 

 

 

 

58

XINT REC SW

I

 

Recording head position detect input.

 

 

 

 

 

59

UNREG MNT

I

 

2.8 V voltage monitor input.

 

 

 

 

 

60

BAT VC

I

 

Battery detect signal input.

 

 

 

 

 

61

FG IN

I

 

FG input from motor driver (IC503).

 

 

 

 

 

62

NC

 

Not used (Open).

 

 

 

 

 

63

FOK PORT

I

 

Focus OK signal input.

 

 

 

 

 

64

––––

 

 

— Not used (Open).

 

 

 

 

 

65

LCD RESET

O

 

LCD reset signal output.

 

 

 

 

 

66

XJACKDET

I

 

LINE IN (OPTICAL) jack detection input.

 

 

 

 

 

67

OPT DET

I

 

LINE IN (OPTICAL) optical detection input.

 

 

 

 

 

68

XMIC DET

I

 

MIC (PLUG IN) jack detection.

 

 

 

 

 

69

(NC)

 

Not used (Open).

 

 

 

 

 

70

FSI (NC)

 

Not used (Open).

 

 

 

 

 

71

SPOFF

O

 

REC head motor control signal output.

 

 

 

 

72

RSI

O

 

 

 

 

 

 

 

73

RH PWM

O

 

RH constant current control signal output.

 

 

 

 

 

74

(NC)

 

Not used (Open).

 

 

 

 

 

75

DQSY

I

 

Subcode Q sync (SCOR) of digital in U-bit CD format from IC601.

 

 

 

 

 

76

T COUNT

I

 

Traverse count signal input.

 

 

 

 

 

77

SDI1

I

 

Serial data input.

 

 

 

 

 

78

SDO1

O

 

Serial data output.

 

 

 

 

 

79

SCK1

O

 

Serial clock output.

 

 

 

 

 

80

SQSY

I

 

SUB-Q/ADIP SYNC input.

 

 

 

 

 

81

BEEP

O

 

BEEP sound output control.

 

 

 

 

 

82

XLAT

O

 

Latch output.

 

 

 

 

 

83

NC

 

Not used (Open).

 

 

 

 

84

TEX

Not used (Fixed at “L”).

 

 

 

 

85

TX

Not used (Fixed at “L”).

 

 

 

 

 

86

VSS

 

Ground.

 

 

 

 

87

VDD

Power supply pin (+2.8V).

 

 

 

 

88

NC

Not used (Fixed at “H”).

 

 

 

 

 

89

XCS ADA

O

 

A/D, D/A converter chip select output.

 

 

 

 

90

XPD ADA

O

A/D, D/A converter power down signal output. H : Power down

 

 

 

 

 

91

KEY ON

O

 

SLEEP : L, action : H.

 

 

 

 

92

XNIMH DET (NC)

Not used (Open). (Battery detect switch input.)

 

 

 

 

 

93

A MUTE

O

 

Analog mute control. H : Mute

 

 

 

 

 

94

XOPT CTL

O

 

Power supply control output for an optical input.

 

 

 

 

 

95

FFCLR

O

 

Flip flop clear signal output.

 

 

 

 

 

96

XCE NV

O

 

EEPROM chip select output.

 

 

 

 

 

97

SENS

I

 

SENS input.

 

 

 

 

 

98

LDON

O

 

“H” : APC circuit ON, “L” : APC circuit OFF

 

 

 

 

 

99

XSHOCK

I

 

Track jump detection input from IC601.

 

 

 

 

 

100

CLV STB

O

 

CLV drive control signal output.

 

 

 

 

 

– 23 –

– 24 –

Image 23
Contents MZ-R37 SpecificationsBattery operation time1 Flexible Circuit Board RepairingServicing Note General Releasing the Test Mode Section SELF-DIAGNOSTICTest Mode Setting Operation in Test Mode SettingDescription of History Codes History code number Clearing the Error Indication Code and Total Recording TimeDescription of Error Indication Codes Problem Indication code Meaning of code DescriptionPanel SV ASSY, Front Section DisassemblyPANEL, Bottom LCD Module ConnectorPanel SV ASSY, Upper Main BoardOP Block Assy Cabinet SV AssyHolder Assy Manual Mode Test ModeTest Mode Structure Audio Mode How to Transfer in the Audio Mode System Gain ModeHow to Check in the Mechanism Mode How to Adjust in the Audio ModeHow to Check in the Audio Mode How to Check in the Power Mode Overall Adjustment Mode Assy ModePower Mode Mode No Test Description Indication value Remark How to Adjust in Assy ModeMode No Adjustment Description Hybrid MODE, KEY Check ModeMO Automatic Adjustment MO Traverse Adjustment Section Electrical AdjustmentsPrecautions for Adjustment Laser Power CheckLOW Reflection CD Traverse Adjustment RF waveform CD RF Level CheckIC PIN Descriptions Section DiagramsXlrf AvssFili FiloSCK2 ClkcsSDI2 SDO2KEY1 LCD ResetKEY3 KEY2MZ-R37 Block Diagram Servo SectionSection Block Diagram System Control SectionControl B Keyrmc AudioSemiconductor Location Printed Wiring BoardWaveforms IC801 $¼ MZ-R37 IC802 8110ANP-DSB-T2 IC Block Diagrams IC301 AK4517-VQ-LIC303 AN7535SA-E1 IC304IC803 AK6420AM-E IC761 BA6966FV-E2IC901 MPC18A35FTA Panel Section Section Exploded ViewsCabinet SV Assy Section 59 4-216-592-01 Terminal A, Battery DetectionMotor Block ASSY, Sled Sled Mechanism Deck Section MT-MZR37-161MOTOR, DC Loading Main Electrical Parts ListSection Diode TantalumElect Chip CXD2652AR Metal ChipRN5RZ25AA-TR CXA2523ARDescription Remark R202 218-875-11 Accessories & Packing Materials SwitchSWITCH, Slide Synchro REC SWITCH, KEY Board DisplayADAPTOR, Conversion 2P Accessories & Packing MaterialsADAPTOR, AC AC-E455A Corrections Table of Contents Printed Wiring BoardSchematic Diagram Side a Printed Wiring Board Except US ModelMain Board Printed Wiring Board US Model Location SemiconductorMZ-R37 IC801 r Schematic Diagram Main /3MZ-R37 Electrical Parts List CAP-CHIP Transistor XP4313-TX.SO Diode MA8140-M-TXJFJ7001 Line in Optical Jack PHONES/REMOTERES-CHIP Filter FILTER, Chip EMI Common ModeNetwork Resistor Head ASSY, OP Electrical Parts LIST/MISCELLANEOUS Incorrect CorrectOP Service Assy Incorrect Correct