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Yamaha MDX-596 Service Manual page 35

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IC6 : M30622M8-xxxFP
Main System Microprocessor
No.
Port
40
P56/ALE
41
P55//HOLD
42
P54//HLDA
43
P53/BCLK
44
P52//RD
45
P51//WRH,/BHE
46
P50//WRL,/WR
47
P47//CS3
48
P46//CS2
49
P45//CS1
50
P44//CS0
51
P43/A19
52
P42/A18
53
P41/A17
54
P40/A16
55
P37/A15
56
P36/A14
57
P35/A13
58
P34/A12
59
P33/A11
60
P32/A10
61
P31/A9
62
Vcc
63
P30/A8
64
Vss
65
P27/A7
66
P26/A6
67
P25/A5
68
P24/A4
69
P23/A3
70
P22/A2
71
P21/A1
72
P20/A0
73
P17/D15
74
P16/D14
75
P15/D13
76
P14/D12
77
P13/D11
78
P12/D10
79
P11/D9
80
P10/D8
81
P07/D7
82
P06/D6
83
P05/D5
84
P04/D4
85
P03/D3
86
P02/D2
87
P01/D1
88
P00/D0
89
P107/AN7
90
P106/AN6
91
P105/AN5
92
P104/AN4
93
P103/AN3
94
P102/AN2
95
P101/AN1
96
AVss
97
P100/AN0
98
Vref
99
AVcc
100
P97//ADTRG
KEY INPUT (A-D)
Voltage
0—0.5V
0.5—1.0V
KEY 1
REW
FF
KEY 2
NO KEY
TITLE
KEY 3
NO KEY
RANDOM
I/O
Name
I/O
Unused (Pull-down at 10 kΩ)
I
FLASH_GND
O
POWERDOWN
Used at MD unit power failure
I/O
Unused (Pull-down at 10 kΩ)
I/O
Unused (Pull-down at 10 kΩ)
I/O
Unused (Pull-down at 10 kΩ)
I
FLASH_VCC
PU at 10kΩ
I/O
Unused (pull up)
I/O
Unused (pull up)
I
INT
Destination input
I
MD-LOAD
L-H: DISC IN
I/O
Unused (Pull-down at 10 kΩ)
I/O
Unused (Pull-down at 10 kΩ)
I/O
Unused (Pull-down at 10 kΩ)
I/O
Unused (Pull-down at 10 kΩ)
I/O
Unused (Pull-down at 10 kΩ)
I/O
Unused (Pull-down at 10 kΩ)
I/O
Unused (Pull-down at 10 kΩ)
I/O
Unused (Pull-down at 10 kΩ)
I/O
Unused (Pull-down at 10 kΩ)
I/O
Unused ((Pull-down at 10 kΩ)
I/O
Unused (Pull-down at 10 kΩ)
I
VCC
Microprocessor power supply input
I/O
Unused (Pull-down at 10 kΩ)
I
GND
GND level input
I/O
Unused (Pull-down at 10 kΩ)
I/O
Unused (Pull-down at 10 kΩ)
I/O
Unused (Pull-down at 10 kΩ)
I/O
Unused (Pull-down at 10 kΩ)
I/O
Unused (Pull-down at 10 kΩ)
I/O
Unused (Pull-down at 10 kΩ)
I/O
Unused (Pull-down at 10 kΩ)
I/O
Unused (Pull-down at 10 kΩ)
I/O
Unused (Pull-down at 10 kΩ)
I/O
Unused (Pull-down at 10 kΩ)
I/O
Unused (Pull-down at 10 kΩ)
I/O
Unused (Pull-down at 10 kΩ)
I/O
Unused (Pull-down at 10 kΩ)
I/O
Unused (Pull-down at 10 kΩ)
I/O
Unused (Pull-down at 10 kΩ)
I/O
Unused ((Pull-down at 10 kΩ)
I/O
Unused (Pull-down at 10 kΩ)
I/O
Unused (Pull-down at 10 kΩ)
I/O
Unused (Pull-down at 10 kΩ)
I
TREC
Timer SW input
I
TPLY
Timer SW input
I/O
Unused (Pull-down at 10 kΩ)
I
JOG2
JOG input 2
I
JOG1
JOG input 1
I/O
Unused (Pull-down at 10 kΩ)
I/O
Unused (Pull-down at 10 kΩ)
I/O
Unused ((Pull-down at 10 kΩ)
I/O
Unused (Pull-down at 10 kΩ)
I/O
Unused (Pull-down at 10 kΩ)
I
KEY3
KEY input 3
I
KEY2
KEY input 2
I
GND
GND level input for AD
I
KEY1
KEY input 1
I
VREF
Reference voltage input for AD
I
VCC
Power supply terminal for AD
I/O
Unused (Pull-down at 10 kΩ)
1.0—1.5V
1.5—2.0V
SELECTER
REC
CHARA
DELETE
REPEAT S/F
REPEAT A-B
Function
2.0—2.5V
2.5—3.0V
3.0—3.5V
STOP
PLAY
EDIT
ENTER
DISPLAY
SCROLL
MDX-596
NO KEY
EJECT
NO KEY
34
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