Read Sharp CD-C471H (serv.man13) Service Manual online
CD-C471H
– 52 –
IC201 RH-iX0171AWZZ:System Microcomputer (IX0171AW) (1/2)
1*
————
Output
—————
2
REC/PB
—
Record/Playback selection signal
3*
————
Output
—————
4*
CD MUT
Output
CD MUT signal
5
CD RES
Output
CD DSP RESET signal
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
Output
CD IC control signal
11
CD SQOUT
Input
CD IC control signal
12
CD WRQ
Input
CD IC control signal
13
CD RWC
Output
CD IC control signal
14
SCK
Input
Main
µ
COM (RH-iX0170AWZZ) control signal
15
SO
Output
Main
µ
COM (RH-iX0170AWZZ) control signal
16
SI
Input
Main
µ
COM (RH-iX0170AWZZ) control signal
17
RESET
Input
Main
µ
COM (RH-iX0170AWZZ) control signal
18
STROBE
Input
Main
µ
COM (RH-iX0170AWZZ) control signal
19
CD PU-IN SW
Input
Pickup position detection
20
AVSS
—
To be connected to GND
21
CD DRF
Input
CD RF level detection input
H: When RF level is H
22
T1 RUN
Input
Tape 1: Rotation pulse input
23
T2 RUN
Input
Tape 2: Rotation pulse input
24
SPEANA 5
Input
63Hz BPF spectrum analyzer input
25
SPEANA 4
Input
250Hz BPF spectrum analyzer input
26
SPEANA 3
Input
1kHz BPF spectrum analyzer input
27
SPEANA 2
Input
4kHz BPF spectrum analyzer input
28
SPEANA 1
Input
16kHz BPF spectrum analyzer input
29
AVDD
—
A/D converter analog positive power
30
AVREF
—
A/D converter reference power
31
TAPE CUM SW
Input
Tape mechanism cam SW input terminal
32*
————
—
No connected
33
VSS
—
To be connected to GND
34
X1
—
Main clock terminal, not used
35
X2
—
Main clock terminal, not used
36*
LINE MUT
Output
Line mute output, not used
37
SURROUND MUT
Output
Surround mute output
38
CENTER MUT
Output
Center SP output mute output
39
SYSTEM MUT
Output
System mute output
40
MIC
Input
Mic input terminal (for detection)
41
EN
Output
DOLBY PRO logic IC control signal
42
DATA
Output
DOLBY PRO logic IC control signal
43
CLK
Output
DOLBY PRO logic IC control signal
44
SP DET
Input
Speaker output error detection input
Occurrence of error: L
45
POWER
Output
Set power control output
Power ON: H
46*
RELAY
Output
Speaker output relay control output
Relay ON: H
47
TAPE TS CrO SW
Input
Tape mechanism 2 CrO
2
detection input
CrO
2
: H
48
VSS
Input
Digital GND terminal
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
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
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