Yamaha MDX-9 Service Manual download pdf (Page 32)

MDX-596

No. Pin Name I/O

55* P37 O

56* P36 O

57* P35 O

58* P34 O

59* P33 O

60* P32 O

61 P31 O

62 Vcc I

63 INNSW I

64 GND

65 L3 DATA O

66 L3 MODE O

67 L3 CLK O

68* P24 O

69* P23 O

70 PCNT0 O

71* LAST O

72 LD ON O

73 A/B O

74 SBSY O

75* DAP ON O

76* DFS0 O

77* DFS1 O

78 P12 O

79 P11 O

80 XRST O

81* AD MUTE O

82 LD+ O

83 LD- O

84* MUTE O

85* RAST O

86* TEST2 I

87* TEST1 I

88* TEST0 I

89 AVCK3 I

90 AVCK2 I

91 AVCK1 I

92 DTEMP I

93 MINF I

94* TEST K1 I

95* TEST K2 I

96 GND

97* NC

98 VREF

99 AVcc

100 PR I

The * marked terminal is a terminal which is not connected externally (open terminal).

IC1401 : iX0324AW

MD System Microprocessor

Function

Input/output port P37

Input/output port P36

Input/output port P35

Input/output port P34

Input/output port P33

Input/output port P32

Input/output port P31

+3.15V

Pick innermost track detect input

GND

L3 DATA (soft serial communication, with 2 modes, LSB first)

L3 MODE (soft serial communication, with 2 modes, LSB first)

L3 CLK (soft serial communication, with 2 modes, LSB first)

Input/output port P24

Input/output port P23

PCNT0 output

LAST

LDON output (H: ON)

ANLPTR output

ADPON output (for CK)

DAPON output (for CK)

DFS0 output

DFS1 output

Input/output port P12

Input/output port P11

XRST (system reset output)

ADMUTE output (for CK)

Loading motor + side control output

Loading motor - side control output

MUTE output

RAST

TEST 2 (special mode select 2)

TEST 1 (special mode select 1)

TEST 0 (special mode select 0)

AVCK3 (motor driver power supply monitor input)

AVCK2 (AD/DA block 3.1V monitor input)

AVCK1 (head circuit power supply monitor input)

DTEMP (temperature detect input)

MINF (by disc type / REC input)

TEST K1 (test key input 1)

TEST K2 (test key input 2)

GND

Unused

+3.15V

Playback/recording reset input

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Yamaha MDX-9 Service Manual Page 32

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