– 47 –
CD-C440W/CP-C440W
IC601 RH-iX0171AWZZ:System Microcomputer (IX0171AW) (2/2)
52
VDD
—
Positive power supply
53
CD O/C SW
Input
CD open-close switch input
54
DISC No. SW
Input
CD turntable position detection input
55
CD U/D SW
Input
CD mechanism UP/DOWN chucking detection input
56
T1 CrO SW
Input
Tape 1 CrO
2
detection SW input
57
SRS INH
Output
SRS (surround) position selection output
58
SRS B
Output
SRS (surround) position selection output
59
SRS A
Output
SRS (surround) position selection output
60
SRS 3D
Output
SRS (surround) position selection output
61
SRS PASS
Output
SRS (surround) position selection output
62
SPAN 9K/10K
Input
Tuner span selector 9 kHz/10 kHz selection input
63
DOLBY
Input
DOLBY detection input, not applied in this machine
64
SRS
Input
SRS detection input, not applied in this machine
65
BALANCE
Input
BALANCE detection input, not applied in this machine
66
4SP
Input
4SP detection input, not applied in this machine
67
TAPE A-FP SW
Input
Tape A side miserase preventing SW input
68
TAPE B-FP SW
Input
Tape B side miserase preventing SW input
69
TAPE PB MUT
Output
Tape playback mute output
70
TAPE T1/T2
Output
Tape 1/2 selection
71
VLOAD
—
To be connected to GND
72
TAPE BIAS
Output
Tape bias circuit selection
73*
————
—
Not used
74*
————
—
Not used
75
TAPE BEET CUT
Output
Beat cancel signal control output
76
TAPE HI SPEED
Output
Tape mechanism High-Low speed selection
77*
————
—
Not used
78*
————
—
Not used
79*
TAPE PB EQ
Output
Tape circuit playback Eq selection
80
TAPE REC MUT
Output
Tape circuit record muting output
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Terminal Name
Pin No.
Input/Output
Function
1
REC/PB
CD MUTE
CD RES
SL-
SL+
CQ CK
COIN
SQ OUT
WRQ
RWC
P94
CD/TAPE CONTROL
µ
PD 78045A
P93
P92
P91
P90
P81
P80
Vdd
SCK 0
SO 0
Si 0
P24
P23
SCK 1
SO 1
Si 1
RESET
P74
P73
AVss
ANi 7
ANi 6
ANi 5
ANi 4
SRS
DOLBY
SPAN 9K
SRS PASS
SRS 3D
SRS A
SRS B
SRS iNH
T1 Cro2
CD U/D SW
DISC No. SW
CD O/C SW
TA MOTOR
TA SOL
F/R SPEED
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
PU-IN SW
MAIN
µ
COM
DRF
T1 RUN
T2 RUN
SPE 5
17
18
19
20
21
22
23
24
REC MUT
PB EQ
Hi SPEED
BEET CUT
BiAS
T1/T2
PB MUT
T2 BFP
T2 AFP
4SP
BALANCE
ANi 3
ANi 2
ANi 1
ANi 0
AVdd
AVref
P04
Vss
X1
X2
P37
P36
P35
P34
P33
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
P95
P96
P97
P100
P101
P102
P103
P104
P105
V Load
P106
P107
P110
P111
P112
P113
SPE 4
SPE 3
SPE 2
SPE 1
TACUM SW
LINE MUT
SUR MUT
CEN MUT
SYS MUT
MIC
T2CrO
RELAY
POWER
SP DET
CLK
DATA
DOLBY
PRO
EN
48
47
46
45
44
43
42
41
P114
P115
P116
P117
P120
P121
P122
P123
P124
P125
P126
P127
Vdd
P70
P71
P72
iC
INT 0
INT 1
INT 2
INT 3
P30
P31
P32
Figure 47 BLOCK DIAGRAM OF IC
*
*
Summary of Contents for CD-C440W
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