– 17 –
CD-PC1881V
Figure 17 BLOCK DIAGRAM (3/3)
Q704
IC951
LA4451
POWER AMP.
IC803
IC806
IC805
IC804
IC650
IC651
Q601,Q602
Q603, Q604
KIA4558P
OPE AMP.
IC601
NJM4560D
OPE AMP.
D802
F804
T3.15A
L 250V
F902
T3.15A L 250V
F901
T3.15A L 250V
IC471
SUB WOOFER
VOLUME
VR701
F903
T3.15A
L 250V
SUB
WOOFER
FRONT
SPEAKER
CENTER
SPEAKER
SURROUND
SPEAKER
SO901
SPEAKER
TERMINALS
RL801
AC POWER
SUPPLY CORD
AC 110/127/220/230-240V
50/60Hz
KIA4558P
OPE. AMP.
DO
DI
CE
CLK
CD DSP RWC
RESET
CD DSP WRQ
31
32
33
100
99
4
3
10
TO CD VIDEO
SECTION
IC702
BU2092F
INPUT/OUTPUT
EXPANDER
2
3
4
5
6
7
10
11
12
13
14
15
18
+B
1
3
2
RESET
KIA7042AP
1 2 3 4
15
25
16
26
28
37 38 39
9 8 7 6 5 4 3 2 1
IC701
IX0340AW
SYSTEM CONTROL
MICROCOMPUTER
13
9
1
7
1
3
2
1
3
2
1
3
2
1
3
2
6
VDD
UNSWITCH
+B7
MEMORY
BACK UP
VDD
XL701
4.19MHz
+B5
+B7
KEY
SW701~SW721
SW722~SW725
SW728~SW733
Q904
+B5
M
Q905
+B4
TO CD VIDEO
SECTION
M901
FAN MOTOR
M
+B4
M902
FAN MOTOR
JK601
HEADPHONES
T.F
PT801
MAIN POWER
TRANSFORMER
PT802
SUB POWER
TRANSFORMER
Q802
+B6
+B7
UNSWITCH
CENTER IN
REAR IN
D801
D803~D806
Q801
D807
~D809
2
3
1
+B7
RX701
Q705
Q706
Q707
4
3
7
5
7
3
1
7
4
5
9
8
L-OUT
IC902
POWER AMP.
STK40724
–B
+B1
R-OUT
Q401
Q402
ZD801
Q403
Q404
+B4
+B3
+B8
+B2
+12V(ANALOG)
+7V(CD)
+5.6V
+5V
VOLTAGE
REGULATOR
VOLTAGE
REGULATOR
KIA7812P
VOLTAGE
REGULATOR
KIA7806P
VOLTAGE
REGULATOR
Q702
Q703
AVDD
KEY IN1
KET IN2
KEY IN3
~
~
~
12
18
16
1
20
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
71
70
69
68
67
66
65
64
63
62
61
80
79
78
77
76
75
74
73
72
60
59
58
57
56
55
54
53
52
51
VDD
PHM1
D811~D814
FRONT
F802
T5A L 250V
F803
T5A L 250V
F805
T1.6A L 250V
29
36
~
M
MM1
APE MOTOR
+B7
+B7
Q907
RL901
RL902
Q906
230-240V
220V
127V
110V
SW801
VOLTAGE
SELECTOR
VOLTAGE
REGULATOR
AN78L05
CONSTANT VOLTAGE
REGULATOR
SBUSY
CD DSP COIN
SQOUT
CD DSP CQCK
CD DSPRES
FRF
SLD+
SLD-
SPEANA3
SPEANA2
SPEANA1
T2 RUN
PUIN SW
O/C SW
SYS STOP
REMOCON
DNO SW
U/D SW
T SOL
T MOT
CAM SW
T1 FAS
FPA
54
53
52
51
KEY JOG A
KEY JOG B
AC RLY CON
REC/PLAY
T BIAS
T T1T2
POWER
MBUSY
S22/DIST4
S21/DIST3
S20/DIST2
S19/DIST1
S18/DIST0
S17
SMUTE
S16
S15
S14
S13
S12
S11
VLOAD
S10
84
83
82
81 S9
S8
S7
S6
S5
S4
S3
S2
S1
G11
G10
G9
G8
G7
G2
G1
G6
G5
G4
G3
11
4
L-IN
R-IN
+B5
+12V(MOTOR)
CENTER OUT
REAR OUT
MOD
FL701
FL DISPLAY
H/P
REMOTE
SENSOR
SPRLY
AN78L05
CONSTANT VOLTAGE
REGULATOR
IC704
CMUTE
SRMUTE