Service manual
CD-C471
W
ICI701
RH-iXO170AWZZ:System Microcomputer (IX0170AW)
(l/2)
Pin No.
Port Name
Terminal Name Input/Output Function
1-5
P94/FIP6-P9OlFIP2
G06-GO2
Output
FL display tube grid drive
67
P81/FIPl,P8O/FIPO
GO1
,GOO
Output
FL display tube grid drive
8
VDD VDD
-
Positive power supply
9
P27/SCKO C’B
CLK
Output
C*B
serial clock output
10
P26/SOO/SBl
C?B
DO
Output
C’B
serial data output
11
P25/SIO/SBO
12
P24lBUSY
13
P23/STB
14
P22fSCKl
15
P21/SOl
16
P2O/SI
1
C’B
DI
C2B
CE
SUB STB
SUB SCK
SUB SO
SUB
SI
Input
Output
Output
Output
Output
lnout
C’B
serial data input
C?B
serial CE output
Serial strobe output for
CD/TAPE
microcomputer
Serial clock output for
CD/TAPE
microcomputer
Serial data output for CD/TAPE microcomputer
Serial strobe
inout
for
CD/TAPE
microcomouter
I 17
1
RESET
1
RESET
I
input
IReset
inout
/
18’
I
P74
1
SUB RES
/
Output
/
Reset output for CD/TAPE microcomputer
I
I
19
I
P73
1
TUN
MUTE
I
Output
I
Tuner
TUN
MUT
output
I
20
AVSS
21
P17/AN17
22
P16iANl6
23
Pi
5iANl5
24
P14/ANl4
25
Pi
3lANl3
AVSS
TUN
SD
TUN
SM
KEY IN5
KEY IN4
KEY IN3
-
Input
Input
Input
Input
Input
Analog power supply for
A/D
converter
Tuner station detection input
Tuner signal meter input
Key input 37-45
Key input 28-36
Kev
inout
19-27
1
34
Xl
35
x2
36 P37
37
P36IBUZ
38
P35IPCL
39*
P34KI2
Xi
x2
LED LCK
LED DATA
LED CLK
RDS
ID
Input
Output
Output
Output
output
lnout
Main clock 4.194304 MHz
Main clock 4.194304 MHz
LED
IC
serial clock output
BU2092
LCK
LED
IC
serial data output
BU2092
DATA
LED
IC
serial clock output
BU2092CLK
RDS RDS station detection
inout
40*
I
P33rrI1
I
RDS SYNC
I
lnDut
I
RDS
Data
svnc
detection
inDut
I
41*
P32/TO2
42
P3l/TOl
43
P3OrTOO
44* P03/lNTPB/CIO
45*
P02/INTP2
46
POlIINTPl
47
POOilNTPOfllO
48 IC
RDS SYR
SYS MUTE
POWER
SYS STOP
REM IN
vss
output
Output
Output
output
Output
Input
Input
-
RDS RAM reset output
LC72720
SYR
System mute output
POWER output
No use
No use
Power failure input
Remote Control
Input
Connect with
GND
49*
50’
51*
52
53*
54-60
P72
P71
P70
VDD
VDD
P127fFIP33
P126/FIP32-P12OiFIP26
S21-S15
Output No use
Output No use
Output
No use
-
Positive power supply
-
No use
Outout
FL
displav
tube seament drive
61-68
j
P117/FIP25-Pl
lOIFIPl8
(
S14-SO7
I
output
I
FL display tube seament drive
I
69,70
P107/FIP17,P106/FIP16
506,505
Output
FL display tube segment drive
In this unit, the terminal with asterisk mark
(*)
is (open) terminal which is not connected to the outside.
-
50
-