Read Sharp CD-MD3000 (serv.man25) Service Manual online
CD-MD3000H/CD-MD3000W
– 98 –
Function
Port Name
Input/Output
52
AVref0
—
Analog reference potential 0
53
P10/ANI0
Input
Key input 0 (AD port)
54
P11/ANI1
Input
Key input 1 (AD port)
55
P12/ANI2
Input
Key input 2 (AD port)
56
P13/ANI3
Input
Key input 3 (AD port)
57
P14/ANI4
Input
Key input 4 (AD port)
58
P15/ANI5
Input
Not used
59
P16/ANI6
Input
Tuner state input
60
P17/ANI7
Input
Not used
61
AVSS
—
Analog GND
62
P130/ANO0
Input
MD serch output
63
P131/ANO1
Output
MD reset output
64
AVref1
Input
Analog reference potential 1
65
P70/RxD2/SI2
Input
MD data input
66
P71/TxD2/SO2
Output
K data output
67
P72/ASCK2/SCK2
Input
MD DSCK output
68
P20/RxD1/SI1
Input
Tuner data input
69
P21/TxD1/SO1
Output
Tuner data output
70
P22/ASCK1/SC
Output
Tuner clock output
71
P23/PCL
Intput
MD load switch
72
P24/BUZ
Intput
MD DSTB input
73
P25/SI0/SDA0
Output
LCD read/write
74
P26/SO0
Output
MD SID output
75
P27/SCK0/SCL0
Output
LCD clock
76
P80/A0
Input
CAM A switch e
77
P81/A1
Input
CAM A switch d
78
P82/A2
Input
CAM A switch c
79
P83/A3
Input
CAM A switch b
80
P84/A4
Input
CAM A switch a
81
P85/A5
Input
TRAY identification switch a
82
P86/A6
Input
TRAY identification switch b
83
P87/A7
Input
TRAY identification switch c
84
P40/AD0
Input
CAM C switch b
85
P41/AD1
Input
CAM C switch a
86
P42/AD2
Output
CD LSI chip enable
87
P43/AD3
Output
CD LSI clock
88
P44/AD4
Input/Output
CD LSI data input/output
89
P45/AD5
Input/Output
CD LSI data input/output
90
P46/AD6
Input/Output
CD LSI data input/output
91
P47/AD7
Input/Output
CD LSI data input/output
92
P50/A8
Output
CD LSI reset
93
P51/A9
Output
CD LSI RW switching
94
P52/A10
Input
CD pickup inner switch input
95
P53/A11
Output
Tray motor forward rotation
96
P54/A12
Output
Tray motor reverse rotation
97
P55/A13
Output
CAM motor forward rotation
98
P56/A14
Output
CAM motor reverse rotation
99
P57/A15
Output
TAPE REC mute
100
VSS
Input
Ground potertial connected to VSS
Pin No.
IC901 RH-iX0354AWZZ: System Microcomputer (IX0354AW) (2/2)
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