Sony KMS-2608/J1N, MDM-7A, NEW specifications Hlda/Ale

Page 53

Pin No.

Pin Name

I/O

Function

 

 

 

 

55

HLDA/ALE

O

Microprocessor mode output. (Not used.)

 

 

 

 

56

MNT2 (XBUSY)

I

In the state of executive command from the CXD2662R

 

 

 

 

57

VSS

Ground.

 

 

 

 

58

(MNT1) SHCK

I

Track jump signal input from the CXD2662R

 

 

 

 

59

VCC

Power supply. (+3.3V)

 

 

 

 

60

EEP-WP

O

EEP-ROM write protect signal output. L: write possibility

 

 

 

 

61

SDA

I/O

Data signal input/output pin with the EEP-ROM.

 

 

 

 

62

BUS CLK

O

Not used.

 

 

 

 

63

OE

O

Read signal output.

 

 

 

 

64

BHE CASH

O

Not used.

 

 

 

 

65

WE R/W

O

Write signal output.

 

 

 

 

66

SCL

O

Clock signal output to the EEP-ROM.

 

 

 

 

67

REFLECT-SW

I

Disk reflection rate detection input from the reflect detection switch. H: Disk with low reflection rate

 

 

 

 

68

PROTECT-SW

I

Recording-protection claw detection input from the protection detection switch. H: Protect

 

 

 

 

69

CS0

O

Chip select signal output to the Flash ROM.

 

 

 

 

70

CS1

O

Not used.

 

 

 

 

71

CS2

O

Not used.

 

 

 

 

72

A20

O

Not used.

 

 

 

 

73

A19

O

Address bus signal output to Flash ROM.

 

 

 

 

74

VCC

Power supply. (+3.3V)

 

 

 

 

75

A18

O

Address bus signal output to Flash ROM.

 

 

 

 

76

VSS

Ground

 

 

 

 

77 to 85

A17 to A9

O

Address bus signal output to Flash ROM.

 

 

 

 

86 to 89

MODEL SEL 1 to 4

O

Not used.

 

 

 

 

90

WP

O

Write protect signal to the Flash ROM.

 

 

 

 

91

VCC

Power supply. (+3.3V)

 

 

 

 

92

A8

O

Address bus signal output to Flash ROM.

 

 

 

 

93

VCC

Power supply. (+3.3V)

 

 

 

 

94 to 101

A7 to A0 LB

O

Address bus signal output to Flash ROM.

 

 

 

 

102 to 113

D15 to D4

I/O

Data bus signal input/output to the Flash ROM.

 

 

 

 

114

K.B-CLK-CTRL

O

Keyboard clock ON/OFF signal output. L: OFF H: ON

 

 

 

 

115

IIC BUSY

O

IIC cable connect check. L: Active

 

 

 

 

116

K.B-DATA

O

Keyboard data output.

 

 

 

 

117, 118

REC-VOL B, A

O

Not used.

 

 

 

 

119 to 122

D3 to D0

I/O

Data bus signal input/output to the Flash ROM.

 

 

 

 

123, 124

JOG1, JOG0

I

Jog dial pulse input from the rotary encoder.

 

 

 

 

125

LATCH(DA)

O

Not used.

 

 

 

 

126

REC

O

Mute signal output when Beep Rec.

 

 

 

 

127

NC

O

Not used.

 

 

 

 

128

CS(FL)

O

Chip select signal output to the display driver.

 

 

 

 

129

POWER(IIC)

O

Media commucator start-up check.

 

 

 

 

130

VSS

Ground.

 

 

 

 

131

STB

O

Strobe signal output to the power supply circuit. H: Power supply ON: L: standby

 

 

 

 

132

VCC

Power supply. (+3.3V)

 

 

 

 

133

IOP

I

Optical Pick-up voltage (current) detect signal input.

 

 

 

 

134

(A/D-6)

I

Model discrimination.

 

 

 

 

135

(A/D-5)

I

Model discrimination.

 

 

 

 

136

TIMER/BEEP SW

I

Timer mode select signal input.

 

 

 

 

137 to 139

KEY 3 to KEY 1

I

Key input pin (A/D input)

 

 

 

 

140

AVSS

Ground. (Analog)

 

 

 

 

141

KEY0

I

A/D reference voltage.

 

 

 

 

142

VREF

Power supply. (+3.3V)

 

 

 

 

143

AVCC

Power supply. (+3.3V)

 

 

 

 

144

NC

I

Not used.

 

 

 

 

53

Image 53
Contents Outputs SpecificationsInputs Supplied accessories Where purchased Power requirementsSELF-DIAGNOSIS Function GeneralItems of Error History Mode Items and Contents Disassembly Table of ContentsDiagrams Exploded ViewsSafety CHECK-OUT Section Service NotesFlexible Circuit Board Repairing LeakageIOP JIG for Checking BD Board WaveformRecord Precedure Main Board Component Side Checks Prior to Parts Replacement and AdjustmentsForced Reset Bit Binary Retry Cause Display ModeHexadecimal Binary Bit When BinaryHigher Bits Lower Bits Hexa Details Section General Front Panel Section Section DisassemblyPT BOARD, VOL-SEL Board Main BoardBD Board Mechanism Deck Section MDM-7APrecautions for USE of Test Mode Section Test ModeSetting the Test Mode Exiting the Test ModeDisplay Details Mark Group Selecting the Test ModeMID Operating the Continuous Playback ModeOUT MENU/NOMode display Test Mode DisplaysError rate display Functions of Other ButtonsMeanings of Other Displays When Memory NG is DisplayedAutomatic SELF-DIAGNOSIS Function InformationCheck before replacement Section Electrical AdjustmentsParts Replacement and Adjustment YES Adjustment flowPrecautions for Adjustments Precautions for Checking Laser Diode EmissionPrecautions for USE of Optical PICK- UP KMS-260B Checks Prior to Repairs Using the Continuously Recorded DiscOther Checks Auto CheckTraverse Check Traverse WaveformCD Error Rate Check Play Check MO Error Rate CheckFocus Bias Check Self-Recording/playback CheckLaser Power Adjustment Initial Setting of Adjustment ValueTemperature Compensation Offset Adjutment Iop NV Save Traverse AdjustmentYES Focus Bias AdjustmentAuto Gain Control Output Level Adjustment Error Rate CheckCD Auto Gain Control Output Level Adjustment MO Auto Gain Control Output Level AdjustmentAdjusting Points and Connecting Points For schematic diagrams Section DiagramsFor printed wiring boards Circuit Boards LocationMDS-JE440 Block Diagrams BD SectionSclk Cclk Control Generator OSC Main SectionDisplay Board BD BoardMain Board Semiconductor Printed Wiring Board BD SectionPIN PIN Function Printed Wiring Board Main Section Side a Printed Wiring Board Main Section Side B PIN MDS-JE440 Schematic Diagram Main /3 See page 47 for IC Block Diagrams Printed Wiring Board Power Section Printed Wiring Board Display Section Schematic Diagram Display Section See page 34 for Waveforms IC101 CXA2523AR BD Board IC Block DiagramsIC400 LA5643 Main Board Pin No Pin Name Function IC PIN FunctionsMNT1 Shck MNT0 FOKMNT2 Xbusy MNT3 Sloc Asyo Mvci Asyi AvddFfdr TfdrFrdr FS4IC1 M30805SGP System Control Main Board HLDA/ALE Chassis Section Section Exploded ViewsNot supplied FL771 202 220 201 213 215 216 205 218 207 Mechanism MDM-7A259 Description Remarks Ref. No Section Electrical Parts ListIC TC7WU04FUTE12R Display KEY-SW SWITCH, Keyboard MENU/NOCN1 MainDiode MA8047-TX Vibrator Main VOL-SELSony Corporation