Read Sharp CD-BA1700 (serv.man9) Service Manual online
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CD-BA160H/1700H
IC701 RH-iX0329AWZZ: System Microcomputer (IX0329AW) (1/2)
Port Name
Terminal Name
Pin No.
Input/Output
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Function
1
VDD
VDD
—
(+) Power supply
2
P37
NO USE
—
GND
3*
P36
S-BUSY
Output
Commijntcate to MPEG
µ
–COM
4
P35
T–BIAS
Output
Tape record BIAS
5
P34
T–T1/T2
Output
Tape T1/T2 change
6
P33
REC/PLAY
Output
Tape REC/PLAY change
7
P32
RES OUT
Output
CD DSP reset & MPEG
µ
-COM reset
8
P31
DRF
Input
CD RF level detection
9
P30
WRQ
Input
CD DSP write requset
10
RESET
RESET
Input
Reset
11
X2
X2
Output
Main clock
12
X1
X1
Input
Main clock
13
Vpp/IC
VPP/IC
—
GND
14*
XT2
XT2
—
Open
15
P04
CD INT
Input
CD DSP interrupt
16
VDD
VDD
—
(+) Power supply
17
P27
CD CLK
Output
CD DSP Clock/MPEG
µ
-COM clock
18
P26
CD DI
Outout
CD DSP Command/MPEG
µ
-COM COMMA
19
P25
CD DO
Input
CD DSP code Q Out/MPEG
µ
-COM data input
20
P24
CD CE
Output
CD DSP CE output
21
P23
CE
Output
CE output
22
P22
CLK
Output
CLOCK output
23
P21
DI
Output
DATA output
24
P20
DO
Output
DATA input
25
AVss
AVSS
—
Analog ground
26
P17/ANI7
M-BUSY/TUN SM
Input
Tuner signal meter input
Communjcate to MPEG
Communjcate to MPEG
µ
-COM M_BUSY
27
ANI6
NO USE
Input
GND
28
ANI5
SPEANA 2
Input
SPEANA data input 16 kHz
29
ANI4
SPEANA 1
Input
SPEANA data input 1 kHz
30
ANI3
SPEANA 0
Input
SPEANA data input 63 kHz
31-33
ANI2-ANI0
KEY2-KEY0
Input
Key input
34
AVDD
AVDD
—
Analog VDD
35
AVREF
AVref
—
Analog REF voltage
36
INTP3
SYS STOP
Input
System stop input
37
P02
SP_RLY
Output
Speaker output relay control
38
INTP1
NO USE
Input
GND
39
INTP0
REMOCON
Input
Remocon input
40
Vss
VSS
—
Ground voltage
41
P74
SMUTE
Output
System mute control
42
P73
T_SOL_B
Output
Tape2 solenoid control
43
P72
T_SOL_A
Output
Tape1 solenoid control
44
P71
T_MOTOR
Output
Tape motor control
45
P70
TIMER LED
Output
Timer LED control
46
VDD
VDD
—
(+) Power supply
47
P127
AC RLY_CONT
Output
AC relay control
48*
P126
NC
—
Open
49
P125
SPK_DET
Input
Speaker output detection
50
P124
T1 RUN
Input
Tape1 ran pluse input
51
P123
T2 RUN
Input
Tape2 ran pluse input
52
P122
CD CLAMP SW
Intput
CD changer clamp switch
53
P121
PLAY SW_A
Input
Play switch for T1
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