Sharp CDC2900 - 3-CD Compact Stereo System Service Manual page 26

CD-C622/C2900
A
B
L
1
A_GND
2
C
R
3
SP_DET
4
SP_RLY
5
D
–15V
6
M_12V
7
+5V
E
8
D_GND
9
A_12V
10
A_GND
11
F
CD_+B
12
CD_GND
13
M_GND
14
–VF
15
VF2
16
VF1
17
G
MAIN PWB-A1(3/3)
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 15.
1
IC901
STK4074B
POWER AMP
1 2 3
C901
R905
1/50
1K
R907
1K
C903
1/50
+B
+B
R830
C909
680 (2W)
2200/50
–B
Q821
+B
AN78L05
3
+B
2
+B
+B
FM SIGNAL
2 3
Figure 26 SCHEMATIC DIAGRAM (7/10)
(2Ch)
Ch1
–
4 5 6 7 8 9
R912
100(1/4W)
Fusible
C911
100/50
C912
R913 100/50
100 (1/4W)
Fusible
R926
0.1 (1W)
C921
C920
0.022
0.022
R931
10K
Q905
2SC3331
+B1
C910
R966
2200/50
22K
VOLTAGE
+B
REGULATOR
Q823
KTD2058 Y
1
R831
3.3(1/2W)
VOLTAGE
REGULATOR
Q824
KIA7812P
3 1
C827
2
(ML)
Q822
VOLTAGE
KIA7806P REGULATOR
3 1
2
D832
1SS133
D833
1SS133
4
– 26 –
Ch2
–
14
10 11 12 13
C915 C923
47P 47P
R921
C916 22K
15P
R917
R918
56K
820
R916
1K
C917
47/50
D906
D903
1SS133 1SS133
C938
47/50
+B
+B
D803
1N4004S
+B2
D804
+B
1N4004S
0.1
R801
12K
+B
5 6
15
C93
0.
(M
R93
R936
4.7
56K
D801
TS6B04
D806
1N4004S
D805
1N4004S
Z
M
Q80
KTA127
VOLTA
REGULA
1
A
2
3
4
CN