Service manual
CD-C471 W
IC201
RH-IX0171
AWZZ:System
Microcomputer
(IX01
71 AW)
(l/2)
Pin No.
1*
Terminal Name Input/Output
OutRut
Function
I
I
2
1
REC/PB
-
1
Record/Plavback
selection
sianal
I
3*
I----
l
output
/
I
4*
CD MUT
output
CD MUT signal
5
CD RES
output
CD DSP RESET
srgnal
6
CD
SL-
output
Slide return signal
7
CD
SL+
output
Slide feed signal
8
VDD
-
Power connection terminal
9
CD CQCK
output
CD
IC
control signal
10
CD COIN
OutDut
CD
IC
control
sianal
11
/
CD SQOUT
12
1
CD WRQ
input
Input
CD
IC
control signal
1
CD
IC
control signal
13
CD RWC
14
SCK
15
so
16
SI
17
RESET
18
STROBE
output
Input
output
Input
Input
Input
CD
IC
control signal
Main
pCOM
(RH-iXOI70AWZZ)
control signal
Main
uCOM
(RH-iX0170AWZZ)
control signal
Main
uCOM
(RH-iXOl70AWZZ)
control signal
Main
pCOM
(RH-iXO170AWZZ)
control signal
Main
uCOM
(RH-iXOl70AWZZ)
control
sianal
I
19
1
CD PU-IN SW
I
Input
1
Pickup position detection
I
20
I
AVSS
I
-
I
To be connected to GND
I
21
CD DRF
22
Tl
RUN
23
T2
RUN
24
SPEANA 5
25
SPEANA 4
Input
Input
Input
Input
lnout
CD RF level detection input
H: When RF level is
H
Tape 1: Rotation pulse input
Tape 2: Rotation pulse input
63Hz
BPF spectrum analyzer input
250H.z
BPF
soectrum
analvzer
inout
26
I
SPEANAS
/
InDut
I
1
kHz
BPF
soectrum
analvzer
inout
I
27
SPEANA 2
28
SPEANA
1
29
AVDD
30
AVREF
31
TAPE CUM SW
32*
___
33
vss
Input
Input
-
-
Input
-
-
4kHz BPF spectrum analyzer input
16kHz
BPF spectrum analyzer input
A/D
converter analog positive power
A/D converter reference power
Tape mechanism cam SW input terminal
No connected
To be connected to GND
34
I
Xl
I
-
1
Main clock terminal, not used
I
35
I
x2
I
-
I
Main clock terminal, not used
I
36+
]
LINE MUT
I
output
I
Line mute output, not used
I
37
SURROUNDMUT
38
CENTER MUT
39
SYSTEM
MUT
40
MIC
41
EN
42
DATA
output
output
output
input
output
OutDut
Surround mute output
Center SP output mute output
System mute output
Mic input terminal (for detection)
DOLBY PRO logic
IC
control signal
DOLBY PRO
loaic
IC
control
sianai
43
CLK
44
SP DET
45
POWER
46’
RELAY
47
TAPE TS
CrO
SW
output
Input
output
output
InDut
DOLBY PRO logic
IC
control signal
Speaker output error detection input
Occurrence of error:
L
Set power control output
Power ON:
H
Speaker output relay control output
Relay ON:
H
Taoe
mechanism 2
CrOn
detection
inout
CrOn:
H
I
48
I vss
I
lnout
1
Diaital GND terminal
I
49
TAPE F/R SPEED
output
Tape feed/return
50
TAPE SOL
output
Tape mechanism solenoid control output
Attraction:
L
51
TAPE MOTOR
output
Tape mechanism motor control output
In this unit, the terminal with asterisk mark
(*)
is (open) terminal which is not connected to the outside.
-
48
-