Sharp CD-C471 W Service Manual page 50

CD-C471 W
Port Name
Pin No.
8 VDD
9
10
11
12
14
15
16
I 17
20 AVSS
21
22
23
24
25
35 x2
36 P37
37
38
42
43
46
47
48
P72
50' P71
52 VDD
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Terminal Name Input/Output
Output
Output
VDD
Output
Output
Input
Output
SUB STB Output
SUB SCK Output
SUB SO Output
SUB SI
I
Output
Output
AVSS
Input
Input
KEY IN5
KEY IN4 Input
KEY IN3 Input
Input
x2 Output
LED LCK Output
LED DATA Output
LED CLK output
output
RDS SYR
SYS MUTE
Output
POWER Output
output
Output
SYS STOP Input
REM IN Input
v s s
Output
Output
Output
VDD
output
Output
FL display tube grid drive
FL display tube grid drive
Positive power supply
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
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
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
RDS RAM reset output LC72720 SYR
System mute output
POWER output
No use
No use
Power failure input
Remote Control Input
Connect with GND
No use
No use
No use
Positive power supply
No use
FL displav tube seament drive
FL display tube segment drive
Function