Sharp CD-C290X - Schematic Diagrams Part 6; Power Amplifier and Voltage Regulator Schematics

CD-C290X
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• NOTES ON SCHEMATIC DIAGRAM can be found on page 12.
Figure 28 SCHEMATIC DIAGRAM (6/11)
CNS702
CNS704
C980 0.1 (ML)
R972 4.7
R968 220
C966 100/50
R967 220
C965 100/50
R961 33K
C948
3300/25
C942
47/16
C973 100/50
C974 0.022
F941
T500mA
L 250V
C976
1000/25
R965 1K
C943
47/16
C961 0.0015
C946
0.1
(ML)
R942
3.3
R943
3.3
R969 10K
C970 47/50
C969 47/50
R973
270
(1/2W)
C967 100/50
C963
1/50
R971 4.7
C964
1/50
C947
0.1
(ML)
Q941
2SD2012 Y
C945
0.022
(ML)
IC941
KIA7812P
VOLTAGE REGULATOR
C975
1000/25
IC942
KIA7805P
VOLTAGE REGULATOR
R962 33K
C944
0.1
(ML)
C962 0.0015
IC961
LA4450
POWER AMP.
C949 2200/50
R941 10K
C941 0.022
C968 0.001
R966 1K
8
9
5
6
7
6
20
2
5
4
3
2
1
1
2
3
4
5
6
7
123456789
1011121314
13
13
2
2
+12V
+12V
–VP
VF2
GND
VF1
+5V
+12V
POWER
POWER-CONT
+5V SERVO
(MECHA)
TO DISPLAY MICOM
MAIN_L
MAIN_R
GND
A_GND
DRIVER
AUDIO
UCOM
GND (D)
M_GND
TO MAIN PWB(1/3)
P25 12-C
TO DISPLAY PWB
P30 1-E
P31 8-G
TO MAIN PWB(2/3)
P27 12-D,E
TO MAIN PWB(1/3)
P25 12-B
TO MAIN PWB(2/3)
P27 12-D
TO
DISPLAY PWB
P30 1-F
MAIN PWB-A1(3/3)
R975
270
(1/2W)
C979
0.1
(ML)
C977
0.1
(ML)
C978 0.1 (ML)
+
+
–
–
FM SIGNAL