Sharp CD-C471 W, Руководство по обслуживанию

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CD-C471
Microcomputer 71 AW)
Pin No. Terminal Name Function
2 selection
I - - - - l
output
CD MUT output CD MUT signal
5 CD RES output CD DSP RESET
6 CD output Slide return signal
7
CD output Slide feed signal
8 VDD Power connection terminal
9 CD CQCK output CD control signal
CD COIN CD control
CD SQOUT
12
CD WRQ Input
CD control signal
CD control signal
13
CD RWC
14 SCK
15 s o
16
17 RESET
18 STROBE
output
Input
output
Input
Input
Input
CD control signal
Main control signal
Main control signal
Main control signal
Main control signal
Main control
I
CD PU-IN SW Input Pickup position detection
AVSS To be connected to GND I
21 CD DRF
22
RUN
23
RUN
24
SPEANA 5
25
SPEANA 4
Input
Input
Input
Input
CD RF level detection input H: When RF level is
Tape 1: Rotation pulse input
Tape 2: Rotation pulse input
BPF spectrum analyzer input
BPF analvzer
26
1 BPF analvzer
27
SPEANA 2
28
SPEANA
29 AVDD
30
AVREF
31
TAPE CUM SW
33 v s s
Input
Input
Input
4kHz BPF spectrum analyzer input
BPF spectrum analyzer input
converter analog positive power
A/D converter reference power
Tape mechanism cam SW input terminal
No connected
To be connected to GND
34
Main clock terminal, not used
35
Main clock terminal, not used I
LINE MUT output Line mute output, not used
I
37 SURROUNDMUT
38
CENTER MUT
39
SYSTEM
40
41
EN
42
DATA
output
output
output
input
output
Surround mute output
Center SP output mute output
System mute output
Mic input terminal (for detection)
DOLBY PRO logic control signal
DOLBY PRO control
43
CLK
44 SP DET
45
POWER
46’
RELAY
47 TAPE TS SW
output
Input
output
output
DOLBY PRO logic control signal
Speaker output error detection input
Occurrence of error:
Set power control output Power ON:
Speaker output relay control output Relay ON:
mechanism 2 detection
48
I vss
Diaital GND terminal I
49
TAPE F/R SPEED output Tape feed/return
50
TAPE SOL
output Tape mechanism solenoid control output Attraction:
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