Sharp CD-BA180 Service Manual - Page 16

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CD-BA180
IC901
STK40204(2Ch)
POWER AMP.
A
B
C
D
E
+5V
+B
i
L
q
F
GND
(A_GND)
t
R
r
GND
(CD_GND)
s
A_10V
+B
g
TO
MAIN
-VP
b
SECTION
VF2
c
P14 1 - C,
P15 10 - H
VF1
a
G
SP_RLY
p
M_10V
h
-15V
f
GND
(D_GND)
k
SW_5V
j
GND
A_GND
l
+5V
e
SP_DET
n
GND
(M_GND)
m
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 28.
1
+
Ch1
-
1
2
3
4
C901
220P
C903
15P
R901
56K
R903
820
C905
R931
47/50
1K
R933
C935
68K
10/50
REGULATOR
+B
+B
REGULATOR
+B
+B
+B
+B
+B
+B
2
Figure 16 SCHEMATIC DIAGRAM (5/10)
5
6
7
8
9
+B
–B
–B
+B
R919
100
C910
100/50
–B
R907
0.1(1W)
R908
0.1(1W)
R909
C907
0.022
1K
+B
4.1V
C908
0.022
0V
R911
0V
10K
Q901
R912
KTC3199 GR
10K
+B
–B
–B
+B
IC841
KIA7810AP
VOLTAGE
IC852
AN78L05
VOLTAGE
20V
5.7V
3
1
2
+B
-B
3
4
– 16 –
+
Ch2
-
10
11
12
13
14
C902
220P
R918
100
C906
R906
47/50
1K
R934
68K
D901
DS1SS133
Q904
KTC3199 GR
R910
4.1V
1K
0V
0V
Q902
KTC3199 GR
Q903
KTC3199 GR
+B
Q831
KTC2026 Y
20V
9.9V
9.9V
+B
IC841
10V
3
1
R842
2
20V
3.3
+B
3
1
IC851
2
KIA7805P
VOLTAGE
REGULATOR
5
15
R914
56K
C917
47/50
+B
–B
R803
680(2W)
R801
22K
R802
22K
D80
1N400
+B
D80
1N400
6