Sharp CD-PC672 Service Manual page 16

Q702
M
1 2 3 4
Q703
MM1
TAPE MOTOR
51 52 53
50
49
48
47
+B7
46
VDD
45
44
43
42
41
40
39
38
37
+B7 36
35
1
34 AVDD
33
RX701 3
32
2
31
+B7
30 29 28
KEY
SW703~SW717
PHM1
SW722~SW725
SW728~SW733
Sub Woofer
7
Volume
VR701
Q401 Q403
Q402
Q404
Q405
VOLTAGE
REGULATOR
+12V(ANALOG)
+B4
+12V(MOTOR)
+B5
+5.6V
+B2
3 IC806
2
ZD801
+5V
+B6
13 9 7
1
IC951
LA4551
6
POWER AMP.
UNSWITCH
+B7
FL701
DISPLAY
~ ~ ~ ~
15 16 25 26 28 29 36 37 38 39
54 55 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73
56
IC701
IX0310AW
SYSTEM CONTROL
MICROCOMPUTER
VDD
27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
+B5
+B7
IC650
IC651
Q704
XL701
KIA4558P
4.19MHz
OPE AMP.
Q601,Q602
Q603, Q604
Q904
IC471
3
4
18
IC901
16
STK40704
12
POWER AMP.
20
+B
15
–B 3
2
1
D801
Q903
D802
VOLTAGE
REGULATOR
D803~D806
3 IC804 1
2
VOLTAGE
REGULATOR
3 1
IC805
2
VOLTAGE
1
REGULATOR
D807
Q801
~D809
Q802
3 1
IC803
2
Figure 19 BLOCK DIAGRAM (3/3)
Q705
Q706
Q707
77 78 79 80
74 75 76
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
IC601
3
1
NJM4560D
OPE AMP. 7
5
4
Q908
FRONT
9 L-OUT
8 R-OUT
PT801
POWER
TRONSFORMER
F802
5A/125V
F803
5A/125V
F804
3A/250V
F805
2A/250V
D811~D814
– 19 –
CD-PC672
UNSWITCH
+B7
MEMORY
BACK UP
+B1
TO CD
SECTION
M901
M
Q905
FAN MOTOR
+B5
JK970
HEADPHONES
RL901
F903
4A/125V
Q907
RL902
F902 4A/125V
F901 4A/125V
Q906
RL801
AC POWER
SUPPLY CORD
T.F
AC 120V, 60Hz
PT802
POWER
TRONSFORMER
Sub Woofer
Front
Speaker
Center
Speaker
Rear
Speaker
SO901
Speaker Terminal