Sharp CD-C472 Service Manual page 24

CD-C472/C3400/C3400C/C3800/C3800C
A
B
1 2 3 4 5 6 7 8 9
C
D
E
R762
10K
12V
Q702
KTA1273 Y
12V
F
+B
TAPE MECHANISM
PWB-D
2 +
M
–
1
G
FWM1
4 2
MM1
PHM1
TAPE
RUN PALS
MOTOR
SENSOR
1 3
SWM3
F. P.
CNPM2
SWM4
F. A. S
SOLM1
SOLENOID
2
SWM5
CAM
1
FWM2
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 15.
1
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DISPLAY
FL701
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33
6G –24.2V
5G –24.2V
P17
–27.1V
P18
–27.1V
P19 –15.3V
P12 –18.6V
P1
–24V
P6
–14.8V
VLOAD
–27.3V
P7 –17.9V
P8 –27.1V
P9 –27.1V
P10
–27.1V
P11
–-18V
P14
–25V
Q707
KRC107 M
DOLBY PASS
12V
0V
R781
LED702
LED701
820
333YTH2 333YTH2
R782
DOLBY NORMAL
820
Q703
KTA1271 Y
LED704 LED703
333YTH2
333YTH2
0V
C716
DOLBY PHANTOM
47/25
12V
R783
LED706 LED705
820
333YTH2 333YTH2
1 3 2 4 5
JK701
VR701
HEADPHONE
20K
JACK
SUB WOOFER
VOLUME
MOTOR
1 1
2 2
3 3
GND
4 4
+12V
5 5
T2 RUN
6 6
7 7
FOOL PROOF
8 8
9 9
T1 RUN
10 10
SOLENOIDO
11 11
MECHA STOP
12 12
2 3
Figure 24 SCHEMATIC DIAGRAM (5/10)
24.2V
4.2V
24.2V +B
R788
1K
7G
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
80
T7
79 T8
0V
78
QS_BYP_AR
77 S0
76
S1
75 S2
25
74 S3
IC701
26
73 S4
IX0192AW
72 S5
SYSTEM MICROCOMPUTER
71
39
70 S6
40
69 S7
68
S8
67
S9
S10
66
S11
65
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47
P20
P13
0V
1
+B
0V 3.8V
2 3
1
0V
8.9V
0V
2
3
Q708
KRC107 M
1
0V
8.9V
0V
2 3
Q709
KRC107 M
8 7 6 5 4 3 2 1
BI701
4
– 24 –
19 20 21 22 23 24
R723 1K
4.2V
25
R724 1K
4.2V
26
4.2V R725 1K
27
KEY-1
R726 1K
4.2V
KEY-0 28
4.2V
AVDD 29
4.2V
AVREF 30
0V
KEY-3
P04 31
KEY-2 4.2V
32
XT2
0V XL701 C703
33
VSS
P0003AW 15P
1.8V
34
X1
2.3V
DO C704
X2 35
R732 1K 18P
4.2V
DRF
CL 36
R733 1K
0V
CE 37
R734 1K
0V
38
DI
4.2V R735 1K
39
0V R736 1K
40
C705
46 45 44 43 42 41 0.001
R737
10K
R745
1K
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
CNP601
TO MAIN PWB
P22 2-C
5 6
+B
+B