Sharp CD-CH1500 Service Manual page 43

IC901 RH-iX0417AWZZ: System Microcomputer (IX0417AW) (1/2)
Port Name
Pin No.
1 P60/A16
2 P62/A18
3 P61/A17
4 P63/A19
5 P64/RD
6 P65/WR
7* P66/WAIT
8 P67/ASTB
9 VDD
10 P100/T15/TO5
11 P101/T16/TO6
12 P102/T17/TO7
13 P103/T18/TO8
14 P30/TO0
15 P31/TO1
16* P32/TO2
17* P33/TI1
18 P34/TI2
19 P35/TI00
20 P36/TI01
21 P37
22* TEST/Vpp
23* P90
24* P91
25* P92
26* P93
27* P94
28 P06/INTP6
29* P120/RTP0
30* P121/RTP1
31* P122/RTP2
32 P123/RTP3
33 P124/RTP4
34 P125/RTP5
35 P126/RTP6
36 P127/RTP7
37 Vdd
38 X2
39 X1
40 Vss
41 XT2
42 XT1
43 RESET
44 P00/INTP0
45 P01/INTP1
46 P02/INTP2/NMI
47 P03/INTP3
48 P04/INTP4
49 P05/INTP5
50 P95
51 Avdd
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Terminal Name Input/Output
PB MUTE Output
REC Output
REC BIAS Output
SMK SP1 Output
T-MOTOR Output
T-SOL Output
SMK SP2 Output
RUN PULSE
—
A-FP SW
B-FP SW
CAM SW
CST SW
CE Output
SIMUKE
CD MUTE Output
SPSW
DATA Output
CLK Output
LCK1 Output
LCK2 Output
—
— Output
— Output
— Output
— Output
— Output
POWER RLY Output
— Output
— Output
— Output
TIMER LED Output
DIMMER Output
SYS-MUTE Output
C FUTA CL
C FUTA OP
—
— Output
—
—
— Output
—
—
REMOCON
JOG-A
JOG-B
SYS_STOP
PROTECT
SP RLY Output
POWER KWY
—
Cassette playback mute
Recording output (Cassette)
Recording bias output (Cassette)
Span output for destination 1
Cassette operation motor output
Cassette solenoid output
Span output for destination 2
Input Pulse for tape running check
Input To be connected to VDD
Input A side foolproof switch
Input B side foolproof switch
Input Cassette CAM switch
Input Cassette detection switch
Tuner chip enable
Input Destination input
CD mute
Input Tuner span select
Extension port output
Extension port clock
Extension port 1 latch clock
Extension port 2 latch clock
Input Not used
Not used
Not used
Not used
Not used
Not used
POWER relay control
Not used
Not used
Not used
LED output for timer
LCD backlight
System mute output
Input Panel close switch
Input Panel open switch
Input Connected to VDD
8 MHz sera - lock
Input 8 MHz sera - lock
Input Ground potertial to be connected to VSS
32.768 kHz crystal
Input 32.768 kHz crystal
Input Reset input
Input Remote control signal input
Input JOG A input
Input JOG B input
Input Power failure detection
Input Speaker abnormal detection
Speaker relay
Input POWER key input
— Analog power supply
– 43 –
CD-CH1500
Function