Sharp CD-BK1600V Service Manual page 28

CD-BK1600V/1800V/190V
A
B
C
D
E
+5V
+B
23
L
20
F
GND (A_GND)
21
R
22
GND (CD_GND)
24
A_10V
25
-VP
27
VF2
28
VF1
26
G
SP_RLY
29
M_10V
30
-15V
31
(D_GND)
GND
32
+5V
33
GND
A_GND
34
UN_SW_5V
35
SP_DET
37
GND (M_GND)
38
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 15.
1
Ch1
-
1 2 3 4
C903
15P
C901
R920
220P
22K
R901
56K
R905
R903
1K
820
R931
C905
1K
47/50
R933
68K
C935
10/50
+B
+B
+B
+B
+B
–B
+B
+B +B
2
Figure 28 SCHEMATIC DIAGRAM (9/12)
IC901
STK40204
POWER AMP.(2Ch)
5 6 7 8 9 10
R918
R919
C911 C912
100
100
10/50
10/50
(1/4W)
(1/4W)
C910
100/50
R907
0.1(1W)
R908
0.1(1W)
R909
C907
0.022 1K
4.1V
R910
1K
R911
0V
0V
10K
C908
Q901
0.022
KTC3199 GR
R912
10K
+B
–B
9.9V
+B
+B
+B
IC852
AN78L05
CONSTANT
VOLTAGE
REGULATOR
+B
3 1
5V
+B
5.7 2 20
+B
D852
1N4004S
+B
–B
+B
3 4
– 28 –
Ch2
11 12 13 14 15
C902
220P
R904
820
C906
47/50
R934
68K
D901 D903
DS1SS133 DS1SS133
4.1V
0V
4.9V
0V
Q902
KTC3199 GR
Q904
KTC3199 GR
+B
Q831 –B
KTC2026
20V
9.9V
+B
20V
10V
3 1
2
C841
0.1(ML)
IC851
KIA7805AP
20V
3 1
2 IC851
KIA7805P
VOLTAGE
REGULATOR
D853
1N4004S
5
FM SIGNA
+
R803
680
(2W)
R801
C803
22K
2200/
R802
C804
22K
2200/
D803
1N4004S
+B2
D805
1N4004S
6