Sharp CD-C831W Service Manual page 20

CD-C831W
A
B
CLK
C
A_GND
TUN_SM
VF1
VLOAD (–VP)
VF2
P17 12 - F
SPN_P
CNP701
HI_CUT
TO MAIN PWB
S.MUTE
SP_DET
SP_RLY
T_T1 T2
T_BIAS
D REC/PLAY
D_GND
12V M
SPA SIG
–15V
E
F
TAPE MECHANISM
PWB-F
FWM1
2+
M
–
PHM1
2 4
MM1 RUN PALS
G
TAPE MOTOR SENSOR
1 3
SWM3
FOOPL PROOF
CNPM2
SWM4
F.A.S
SOLM1
SOLENOID
SWM5
CAM
FWM2
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 12.
1
DISPLAY PWB-A3
R721 R722
R723
100K 100K
100K
Q706 Q707
Q705
2SC3331 2SC3331
2SC3331
1
DO 2
CE
3
4
DI
5
6
7
8
9
10
11
12
13
14
15
16
17
18
+B
19
20
–B
21
+B
5V
22
+B
–B
R562
390K
C551
R551
270P
10K
C557
R556
270P
33K
R558
C559
68K
0.0027
R553
C553
12K
0.0027
D551
1SS133
R555
C555
56K
0.0068
C556
R560 C561
0.0068 0.022
470K
R567 270K
R561
C562
15K
0.022
R573
560K
+B
MOTOR
1 1
2 2
3 3
GND
4 4
+12V
5 5
T2 RUN
6 6
7 7
FPA
8 8
9 9
T1 RUN
10 10
SOLENOID
11 11
CAM SW
12 12
CNSM1
2
Figure 20 SCHEMATIC DIAGRAM (5/9)
C720
47/50
R716
33
R717
10K
–B
R575
R574
330
330
R568
D554
2 4
220K
1SS133
SPEANA3
3
1
R578
C566
R570
100K
2.2/50
220K
D555
5 8
1SS133
SPEANA2
6
7
R579
100K
IC563
OPE AMP.
KIA4558P
–B
D556
2 4
1SS133
R572
SPEANA1
3
1
2.2M
C568
2.2/50
5 8
6 7
IC562
KIA4558P
OPE AMP.
ZD551
MTZJ6.2C
3 4
– 20 –
FL701
FL DISPLAY
1 2 3 4 5 6 7 8 9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
C702
1/50
D704
D701~704: 1SS133
R701 1K
R702 1K
R703 1K
R705
1K
R709
1K
R712 22K
R713 1K
R714 1K
R715 1K
+B
+B
12V
+B
R760 Q702
10K KTA1273 Y
12V 0V
+B
C705
Q703
47/25
KTA1271 Y
+B
12V 0V
D716
1SS133
12V
R758
1.2K
+B
1 2 3
5
81 82 83 84 85 86 87 88 89 90 91 92 93 94
80
79 VLOAD
78 P11
P12
77
80 P10
1 VDD
P13
76
75 P14
74 P15
P16
73
P17
72
IC701
71 P18
IX0281AW OR
70 P19/DIST1
IX0310AW
P20/DIST2
69
SYSTEM CONTR
P21/DIST3
68
MICROCOMPUT
67 P22/DIST4
66 NC DISTOUT
DIST0 L:DEMOSTART
SPN_P
65
DIST0 H:ECOSTART
64 SP_DET
63 SPRLY
62
61 HI-CUT
60
59
S MUTE
58
57
REC/PLAY
52 30 T2 R
56
AC RLY-CON
51
DIST0
55
T_T1T2
54
T-BIAS
53
52
51
50 49 48 47 46 45 44 43 42 41 40 39 38 37
+B
R752
10K R
+B
1
R753
R
10K
1
R754 R
10K 1
+B
+B
+B
+B
+B
+B
BI701
4 5 6 7 8
+B
6