Read Sharp CD-C621H (serv.man12) Service Manual online
CD-C621H
– 48 –
IC701 RH-iX0281AWZZ:System Microcomputer (IX0281AW) (1/2)
1
VDD
VDD
—
(+) POWER SUPPLY
2*
P37
ENA
Output
DOLBY PROLOGIC ENABLE TERMINAL
3
P36
DO
Input
DATA INPUT
4
P35
DI
Output
DATA OUTPUT
5
P34
CE
Output
CE OUTPUT
6
P33
CLK
Output
CLOCK OUTPUT
7,8*
P32, P31
LCK1, LCK2
Output
9
P30
RWC
Output
CD DSP READ WRITE CONTROL
10
RESET
RESET
Input
RESET
11
X2
X2
Output
MAIN CLOCK
12
X1
X1
Input
MAIN CLOCK
13
Vpp
VPP
—
POWER SUPPLY TERMINAL
14*
XT2
XT2
—
OPEN
15
P04
WRQ
Input
CD DSP WRITE REQUEST
16
VDD
VDD
—
(+) POWER SUPPLY
17
P27
PCCL
Output
CD DSP PCCL
18
P26
COIN
Outout
CD DSP COMAND
19
P25
SQOUT
Input
CD DSP CODE Q OUT
20
P24
CQCK
Output
CD DSP CLOCK
21
P23
DSP RES
Output
CD DSP RESET
22
P22
FRF (DRF)
Input
CD RF LEVEL DETECTION
23
P21
SLD+
Output
CD SLIDE MOTOR +
24
P20
SLD-
Output
CD SLIDE MOTOR -
25
AVss
AVSS
—
ANALOG GROUND
26
ANI7
SPEANA3
Input
SPEANA DATA INPUT 16 KHz
27
ANI6
SPEANA2
Input
SPEANA DATA INPUT 1 KHz
28
ANI5
SPEANA1
Input
SPEANA DATA INPUT 63 Hz
29
ANI4
TUN SM
Input
TUNER SIGNAL METER INPUT
30
ANI3
T2 RUN
Input
TAPE2 RUN PULSE INPUT
31-33
ANI2-ANI0
KEYIN3-KEYIN1
Input
KEY INPUT
34
AVDD
AVDD
—
ANALOG VDD
35
AVREF
AVREF
—
ANALOG REF VOLTAGE
36
P03
PUIN SW
Input
CD PUIN SWITCH
37
P02
O/C SW
Input
CD OPEN/CLOSE SWITCH
38
INTP1
SYS STOP
Input
SYSTEM STOP INPUT
39
INTP0
REMOCON
Input
REMOCON INPUT
40
Vss
VSS
—
GROUND VOLTAGE
41
P74
DNO SW
Input
CD DISC NO. SWITCH
42
P73
U/D SW
Input
CD UP/DOWN SWITCH
43
P72
TIMER LED
Output
TIMER LED CONTROL
44
P71
T_SOL
Output
TAPE SOLENOID CONTROL
45
P70
T_MOT
Output
TAPE MOTOR CONTROL
46
VDD
VDD
—
(+) POWER SUPPLY
47
P127
CAM SW
Input
TAPE CAM SWITCH
48
P126
TIFAS
Input
TAPE1 FULL AUTOSTOP PULSE INPUT
49
P125
FPA
Input
TAPE2 A-SIDE FULL PROOF
50
P124
H/P
Input
HEADPHONE INPUT
51
P123
AC RLY_CONT
Output
AC RELAY CONTROL
52
P122
REC/PLAY
Output
TAPE REC/PLAY CHANGE
53
P121
T_BIAS
Output
TAPE Record bias control
54
P120
T_T1T2
Output
TAPE T1/T2 CHANGE
55
P117
DISTO
Input
DISTINATION INPUT
Port Name
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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