Sony MZ-E800 VDIO1, VSIO1, Xras, Ixoe, Ixwe, Xcas, VDC3, VSC3, Xoe, Xwe, Mvci, Asyo, Asyi, AVD1

Page 32

Pin No.

 

Pin Name

I/O

 

 

 

Description

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

47 to 52

A03, A04, A02,

O

Address signal output to the external D-RAM

Not used (open)

 

 

A05, A01, A06

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

53

 

VDIO1

Power supply terminal (+2.4V) (for I/O cell)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

54

 

VSIO1

Ground terminal (for I/O cell)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

55 to 59

A00, A07, A10,

O

Address signal output to the external D-RAM

Not used (open)

 

 

 

A08, A09

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

60

 

XRAS

O

Row address strobe signal output to the external D-RAM

“L” active

Not used (open)

 

 

 

 

 

 

 

 

 

 

61

 

IXOE

O

Output enable signal output terminal

“L” active

Not used (open)

 

 

 

 

 

 

 

 

 

 

 

62

 

IXWE

O

Data write enable signal output terminal

“L” active

Not used (open)

 

 

 

 

 

 

 

 

63

 

XCAS

O

Column address strobe signal output to the external D-RAM “L” active

Not used (open)

 

 

 

 

 

 

 

 

 

64 to 67

D1, D2, D0, D3

I/O

Two-way data bus with the external D-RAM

Not used (open)

 

 

 

 

 

 

 

 

 

 

 

 

68

 

VDC3

Power supply terminal (+1.7V) (for internal logic)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

69

 

VSC3

Ground terminal (for internal logic)

 

 

 

 

 

 

 

 

70

 

A11

O

Address signal output to the external D-RAM

Not used (open)

 

 

 

 

 

 

 

 

 

71

 

XOE

O

Output enable signal output to the external D-RAM

“L” active Not used (open)

 

 

 

 

 

 

 

 

72

 

XWE

O

Data write enable signal output to the external D-RAM

“L” active

Not used (open)

 

 

 

 

 

 

 

73

 

MVCI

I

Digital in PLL oscillation input from the external VCO

Not used (fixed at “L”)

 

 

 

 

 

 

 

 

 

 

 

 

74

 

ASYO

O

Playback EFM full-swing output terminal

 

 

 

 

 

 

 

 

 

 

 

 

 

 

75

 

ASYI

I

Playback EFM asymmetry comparator voltage input terminal

 

 

76

 

AVD1

Power supply terminal (+2.4V) (analog system)

 

 

 

 

 

77

 

BIAS

I

Playback EFM asymmetry circuit constant current input terminal

 

 

 

 

 

 

 

 

 

78

 

RFI

I

Playback EFM RF signal input from the SN761056CDBT (IC501)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

79

 

AVS1

Ground terminal (analog system)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

80

 

PCO

O

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

 

 

 

 

 

 

81

 

FILI

I

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

 

82

 

FILO

O

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

83

 

CLTV

I

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

84

 

PEAK

I

Light amount signal (RF/ABCD) peak hold input from the SN761056CDBT (IC501)

 

 

 

 

 

85

 

BOTM

I

Light amount signal (RF/ABCD) bottom hold input from the SN761056CDBT (IC501)

 

 

 

 

 

 

 

86

 

ABCD

I

Light amount signal input from the SN761056CDBT (IC501)

 

 

 

 

 

 

 

 

 

87

 

FE

I

Focus error signal input from the SN761056CDBT (IC501)

 

 

 

 

 

 

 

 

 

 

 

88

 

AUX1

I

Auxiliary signal input terminal

Not used (fixed at “H”)

 

 

 

89

 

VC

I

Middle point voltage (+1.2V) input terminal

 

 

 

 

 

 

90

 

ADIO

O

Monitor output of the A/D converter input signal

Not used (open)

 

 

 

 

 

 

 

91

 

ADRT

I

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

 

 

 

 

 

 

 

 

 

 

92

 

AVD2

Power supply terminal (+2.4V) (analog system)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

93

 

AVS2

Ground terminal (analog system)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

94

 

ADRB

I

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

95

 

SE

I

Sled error signal input terminal

Not used

(fixed at “L”)

 

 

 

96

 

TE

I

Tracking error signal input from the SN761056CDBT (IC501)

 

 

97

 

DCHG

I

Connected to the +2.4V power supply

 

 

 

 

 

 

 

 

 

 

 

 

 

 

98

 

APC

I

Error signal input for the laser automatic power control

Not used (fixed at “H”)

 

 

 

 

 

 

99

 

ADFG

I

ADIP duplex FM signal (22.05 kHz ±

1 kHz) input from the SN761056CDBT (IC501)

 

 

 

 

 

 

 

 

 

 

 

100

 

VDIO2

Power supply terminal (+2.2V) (for I/O cell)

 

 

 

 

 

 

101

 

VSIO2

Ground terminal (for I/O cell)

 

 

 

 

 

 

 

 

 

102

 

F0CNT

O

Center frequency control signal output terminal of internal circuit filter

Not used (open)

– 42 –

Image 32
Contents Specifications 927-939-12Table of Contents DiagramsExploded Views Electrical Parts List Flexible Circuit Board RepairingSection Servicing Notes When a disc is loaded Operation of MechanismWhen a disc is unloaded Parts and controls Section GeneralSection Disassembly Panel ASSY, RearFront Panel Section Shutter SectionDisplay PANEL, Liquid Crystal LCD901 MD Mechanism Deck MT-MZE800-170OP Service Assy LCX-2E Main BoardMOTOR, DC SSM17A/C-NP Spindle M901, MOTOR, DC Sled M902 Holder AssyTest Mode Setting Method of Test ModeOperation in Setting the Test Mode Releasing the Test ModeA n u a l Configuration of Test ModeManual Mode 011 C 6 8 S 0 F F J 0011 0 6 3 B 0 000 1 s tDescription of Indication History Reset the error display codeDescription of Error Indication Codes 000 000 FFRPLAY SET OKReset Power CCSection Electrical Adjustments 021 Res762 Vc1PWM 764 Vr1Vc1VchPWM VrhVchChgPW1 ChgPW2Assy11 000 *** NGSection Diagrams Block Diagram Main /2Slcv Block Diagram DISPLAY/KEY CONTROL/POWER Supply Section Printed Wiring Board Semiconductor LocationPlayback + Line Schematic Diagram Main Board 3/4 See page 37 for Waveforms Charge IC501 SN761056CDBT IC Block Diagrams IC301 TA2131FL ELWaveforms IC551 IC903 XC6383C601MR IC904 XC6368B101MRIC PIN Function Description IC601 CXD2661GA-2 VDIO1 VSIO1Xras IxoeXlrf ApcrefLddr VDC4Vlcd SI0SO0 SCK0Xwake Close Xwake SETXwake DC Xchg PWRSSB Data SSB CLKFlash WR EN DBB0Section Exploded Views Panel SectionMain Section 5666MD Mechanism Deck Section MT-MZE800-170 105 104103 102 117 101 103 106 107 109 108 116 115 110 114 113 112 111Section Electrical Parts List MainInductor Composition Circuit Block Accessories & Packing Materials Revision History