Sharp CD-BA250H Service Manual page 26

CD-BA250H/CD-BA2600H
A
R934
1K
B
C932
0.001
R932
56K
C930
0.22/50
R930
100K
C
D
E
A_+B
1
CD_+B
2
L-CH
4
GND (A_GND)
3
R-CH
6
P_IN
20
F
GND (CD_GND)
7
A+10 V
9
–VP
17
VF2
18
VF1
19
SP_RLY
13
M_+12 V
8
–15 V
21
GND (D_GND)
10
SW_5 V
14
GND (A_GND)
5
G
SP_DET
12
GND (M_GND)
11
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 39.
1
L-CH
+
Ch1
–
1 2 3 4 5 6 7
R946
R948
R942
0.22
0.22
22K
C938
(2W)
(2W)
150P
C940
C936 100/50
15P
R944 100 R950
0.1
R938 R940
(1W)
R936
56K 1K
820
R952
1K
C948
C934
0.022
4.7/50
R954
1.5K
Q902
KTC3199 GR
+B
+B
D917
DS1N404S
+B
+B
-B
+B
2
Figure 26 SCHEMATIC DIAGRAM (5/9)
IC901
STK4029S
POWER AMP.
8 9 10 11 12
R945
R947
0.22
0.22
(2W)
(2W)
C941
100/50
C946 C945
R949
10/50 10/50
0.1
(1W)
D911
DS1SS133
R951
C947
1K
0.022
R953
1.5K
R933
56K
C931
0.22/50
+B
+B
1
2 2
3
Q907
C969
KRC107 M
3.3/50
-B
+B
R909
22K
IC903
KIA7810AP
VOLTAGE
REGULATOR
+B
+B
+B
-B
IC904
KIA7805AP
C923
CONSTANT
47/25
VOLTAGE
REGULATOR
3 4
– 26 –
R-CH
+
Ch2
–
13 14 15
C939
150P
R939
C937
56K
15P
R941 R935
1K
C935 1K
4.7/50
Q904
D913
KTC3199 GR R956
1SS133 56K
R955
56K
1
3
Q908
KRA107 M
IC902
KTC2026
R903
3.3K
+B
R908
560
R902
IC903
+B
+B
3 1
2
C920 C918
47/25 0.1(ML)
IC904
+B
+B
3 1
2
C921
0.1(ML)
5
C951 C950
0.1 0.1
(ML) (ML)
C953 C952
0.1
0.1
(ML) (ML)
R959 R958
4.7 4.7
+B
C903
BI902
2200/63
1
2
3
+B2
4
5
C904
22K 2200/63
6
7
8
9
10
S
1
S
2
3
CNS803
FROM
4
DISPLAY PWB
P29 12-E
5
6
6