Sharp CDC2900 - 3-CD Compact Stereo System Service Manual page 28

CD-C622/C2900
A
B
CLK 1
C
DO 2
CE 3
4
DI
A_GND 5
VF1
6
VLOAD (–VP)
7
VF2 8
SPN_P 9
P25 12 - E
HI_CUT 10
CNP701
S.MUTE 11
TO MAIN PWB
SP_DET 12
SP_RLY
13
T_T1 T2
14
T_BIAS 15
REC/PLAY
16
D
D_GND 17
12V M 18
SPA SIG
19
–15V
20
5V
21
E
F
TAPE MECHANISM
PWB-E
FWM1
2+
M
–
PHM1
2
4
MM1 RUN PALS
TAPE MOTOR SENSOR 1
G
2
1 3
3
SWM3
4
F.P.
5
CNPM2
SWM4 6
F.A.S
7
8
SOLM1
9
SOLENOID
10
SWM5
11
CAM
12
FWM2
CNSM1
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 15.
1
DISPLAY PWB-A3
R721 R722
R723
100K 100K
100K
Q705 Q706 Q707
2SC3331 2SC3331 2SC3331
C720
47/50
R716
33
+B
–B
+B
R717
10K
+B
–B
R562
390K
C551
R551
270P
10K
R568
2
220K
C557
R556
3
270P
33K
R570
220K
R558
C559
5
68K
0.0027
6
R553
C553
12K
0.0027
IC563
KIA4558P
D551
OPE AMP.
1SS133
R555
C555
56K
0.0068
2
R572
C556
R560 C561
3
0.0068 0.022
470K 2.2M
R567 270K
5
6
R561
C562
15K
0.022
IC562
R573
KIA4558P
560K
OPE AMP.
+B
MOTOR
1
2
3
GND
4
+12V
5
T2 RUN
6
7
FPA
8
9
T1 RUN
10
SOLENOID
11
CAM SW
12
2 3
Figure 28 SCHEMATIC DIAGRAM (9/10)
FL701
FL DISPLAY
1 2 3 4 5 6 7 8 9
C702
1/50
+B
–B
R575 R574
330
330
D554
4
1SS133
SPEANA3
1
R578
C566
100K +B
2.2/50
D555
8
1SS133
SPEANA2
7
R579
100K
+B
R760
10K
12V
+B
Q703
KTA1271 Y
–B D556
4
1SS133
+B
SPEANA1
12V
1
C568
R758
2.2/50
8 1.2K
7
+B
ZD551
MTZJ6.2C
4
– 28 –
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33
81 82 83 84 85 86 87 88 89 90
80
79 VLOAD
78 P11
P12
77
80 P10
76 P13
P14
75
74 P15
P16
73
P17
72
IC701
71 P18
IX0280AW
P19/DIST1
70
SYSTEM CONTROL
69 P20/DIST2
MICROCOMPUTER
P21/DIST3
68
P22/DIST4
67
R701
66 NC DISTOUT
1K
DIST0 L:DEMOSTART
SPN_P
65
DIST0 H:ECOSTART
R702 1K
64 SP_DET
R703 1K
63
SPRLY
R705 62
1K
HI-CUT
61
60
R709
59
1K
S MUTE
58
57
52 REC/PLAY
56
51 AC RLY-CON
55 DIST0
R712 22K
T_T1T2
54
R713 1K
T-BIAS
53
R714 1K
52
R715 1K
51
50 49 48 47 46 45 44 43 42 41
+B
R752
10K
+B
R753
10K
R754
10K
12V
+B
Q702
KTA1273 Y +B
0V
C705
47/25
0V
D716
1SS133
12V
+B
BI701
4
1 2 3 5 6 7 8
5 6
91 92 93 94 95 96 97
1 VDD
CD
CD D
CD D
CD D
CD
30 T2 RUN
40 39 38 37 36 35
34
+B
R755
10K
R756
10K
R757
10K
+B
+B
+B
LED7
LED71
+B