CD-MD3000 (serv.man25). IC function tables - Sharp Audio Service Manual (repair manual). Page 4

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CD-MD3000H/CD-MD3000W
1
P60/A16
Output
Cassette playback mute
2
P62/A18
Output
Recording output (Cassette)
3
P61/A17
Output
Recording bias output (Cassette)
4
P63/A19
Output
Span output for destination 1
5
P64/RD
Output
Cassette operation motor output
6
P65/WR
Output
Cassette solenoid output
7
P66/WAIT
Output
Span output for destination 2
8
P67/ASTB
Input
Pulse for tape running check
9
VDD
Input
To be connected to VDD
10
P100/T15/TO5
Input
A side foolproof switch
11
P101/T16/TO6
Input
B side foolproof switch
12
P102/T17/TO7
Input
Cassette CAM switch
13
P103/T18/TO8
Input
Cassette detection switch
14
P30/TO0
Output
Tuner chip enable
15
P31/TO1
Input
Destination input
16
P32/TO2
Output
CD mute
17
P33/T11
Input
Tuner span select
18
P34/T12
Output
Expanded IC control signal
19
P35/T100
Output
Expanded IC control signal
20
P36/T101
Output
Expanded IC control signal
21
P37
Output
Expanded IC control signal
22
TEST/Vpp
Input
Not used
23*
P90
Output
Not used
24*
P91
Output
Not used
25*
P92
Output
Not used
26*
P93
Output
Not used
27*
P94
Output
Not used
28
P06/INTP6
Output
POWER relay control
29*
P120/RTP0
Output
Not used
30*
P121/RTP1
Output
Not used
31*
P122/RTP2
Output
Not used
32
P123/RTP3
Output
LED output for timer
33
P124/RTP4
Output
LCD backlight control
34
P125/RTP5
Output
System mute output
35
P126/RTP6
Input
Panel close switch
36
P127/RTP7
Input
Panel open switch
37
VDD
Input
Connected to VDD
38
X2
Output
8 MHz sera - lock
39
X1
Input
8 MHz sera - lock
40
VSS
Input
Ground potertial to be connected to VSS
41
XT2
Output
32.768 kHz crystal
42
XT1
Input
32.768 kHz crystal
43
RESET
Input
Reset input
44
P00/INTP0
Input
Remote control signal input
45
P01/INTP1
Input
JOG A input
46
P02/INTP2/NMI
Input
JOG B input
47
P03/INTP3
Input
Power failure detection
48
P04/INTP4
Input
Speaker abnormal detection
49
P05/INTP5
Output
Speaker relay
50
P95
Input
POWER key input
51
AVDD
Analog power supply
Pin No.
Function
Port Name
Input/Output
IC901  RH-iX0354AWZZ: System Microcomputer (IX0354AW) (1/2)
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
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