Sharp CD-C452 Instrukcja serwisowa - Strona 30

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Sharp CD-C452 Instrukcja serwisowa
CD-C452/C452C
IC701 RH-iX0224AWZZ:System Microcomputer (IX0224AW) (1/2)
Pin No.
Port Name
Terminal Name
1-7
FIP6-0
FL DRIVER
8
VDD
9
P27
TAPE BIAS
10
P26
TAPE REC
11
P25
T1/T2
12
P24
CD DSP WRQ
13
P23
CD DSP RWC
14
SCK1
CD DSP CQCK
15
SO1
CD DSP COIN
16
SI1
CD DSP SQOUT
17
RESET
RESET
18
P74
CD DSP RES
19
P73
CD T/T OPEN/CLOSE
20
AVSS
21
ANI7
CD UP/DOWN
CD DISC NO
22
ANI6
T2 RUN PLSE
23
ANI5
QS_AC
24
ANI4
QS_MO
25
ANI3
KEY INPUT 3
26
ANI2
KEY INPUT 2
27
ANI1
KEY INPUT 1
28
ANI0
Initial setting input
29
AVDD
AVDD
30
AVREF
AVREF
31
P04
SRS
32*
XT2
—
33
VSS
34
X1
X1
35
X2
X2
36
P37
C
2
B CL
37
P36
C
2
B CE
38
P35
C
2
B DI
39
P34
C
2
B DO
40
P33
CD DRF
41
P32
CD PUIN
42
P31
CD SL+
43
P30
CD SL-
44
P03
POWER
45
P02
CMUTE
46
INPT1
SYSTEM STOP
47
INPT0
REMOCON
48
IC
INTERNALLY
CONECTED
49
P72
FMUTE
50
P71
TAPE SOL.
51
P70
TAPE MOTOR
52
VDD
VDD
53
P127
D.PCE
54
P126
RMUTE
55
P125
TAPE F.P.
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Input/Output
Output
Segment Output
—
Connect with BACK UP VDD
Output
TAPE BIAS ON: H
Output
TAPE REC. ON:L
Output
TAPE2 PLAY:L
Input
CD DSP Write request
Output
CD DSP Read write control
Output
CD DSP Clock
Output
CD DSP Comand
Input
CD DSP Code Q out
Input
Reset Input: L
Outout
Input
CD Turntable open close
—
Connect with GND
Intput
CD mecha up/down CD disc no
Input
TAPE2 Run pulse
Output
Q-SOUND AC
Output
Q-SOUND MO
Input
Key input 3
Input
Key input 2
Input
Key input 1
Input
Initial setting input
—
Connect with BACK UP VDD
—
Connect with UNBACK UP VDD
Input
SRS provided/not provided
—
Not connect
—
Connect with GND
Input
MAIN CLOCK 4.19MHz
Output
MAIN CLOCK 4.19NHz
Output
C
2
B Bus clock
Output
C
2
B Bus chip enable
Output
C
2
B Bus comand
Input
C
2
B Bus data
Input
Data read flug from DSP.
Input
L: Innermost periphery
Output
CD PICKUP Slide motor control.
Output
CD PICKUP Slide motor control.
Output
POWER ON: H
Output
Center Mute
Input
System Stop Signal
Input
Remote Control Code Input
—
Connect with GND
Output
Front MUTE ON: H
Output
TAPE SOL. ON: L
Output
TAPE MOTOR ON: L
—
Connect with BACK UP VDD
Input
MIC MUTE: L
CD STOP, TAPE STOP state: Mute cancel
Output
Rear MUTE
Input
TAPE FOOL PROOF
– 30 –
Function
REC: L