Sharp QT-CD161 Service Manual page 16

QT-CD161/141
A
B
SW102-C
R
CNS101 CNP101
L-CH
1 1
2 2
3 3
4 4
C
R-CH
R
SW102-E
ERASE HEAD
R P
SW102-H
D
R-CH
23
GND(A)
22
L-CH
21
+B
TUNER +B
32
D GND
28
E
R456
15K
16
R-CH
AUDIO GND 15
L-CH
14
R455
CD +7.4V
42
15K
DIGITAL GND 1
F
POWER GND
13
+B
+7.4V
12
MUTE
43
FUNC(CD)
44
BACK UP
40
G
MAIN PWB-A1(2/4)
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 9.
1
FM SIGNAL
CD SIGNAL
PLAYBACK SIGNAL
RECORD SIGNAL
R103
C105
R104 12K
12K 0.0018(B)
R105
15K(1/4W)
0.018(ML)
R109
R102 R101
120
330
330
SW102-B
C109
270P(B)
P R P
5
C107
R107
(B)820P
C111
1K
330P(B)
9
C112
C108
330P(B)
820P(B)
R
C110
P
P R108
270P(B)
1K
SW102-D
R110
C106
120
0.0018(B)
R106
15K
C351
0.0022
(ML)
R458 R457
1.2K 1.2K
+B
C252
0.022
2 3
Figure 16 SCHEMATIC DIAGRAM (3/6)
C115
R113
C121
8.2K
0.01
R115
R117
3.9K
3.9K
C113 C117
47/16
10/16
3 PRE AMP 1
C119
NF1 OUT1 8
IC101
2.2/50
VCC
IN1
BA3311L
10
FILTER
REC./P.B.
EQUALIZER
ALC T
IN2
2
GND
NF2 OUT2
11 4 6 7 12
C118
C114
10/16
47/16 R116
C122
3.9K
0.01(Z)
R114 R118
C116 R120
8.2K 3.9K
0.018 3.3K
(ML)
SW102-G
P R
BIAS OSC R351
330
L301
(1/4W)
R353
47K(1/4W)
R352
150 C353
(1/4W) 0.0056
C352
220/10 (ML)
4
– 16 –
SW201-A
R153
TAPE
2.2K
TUNER
CD
R121
2.7K
SW102-A
R P
R123
3.3K
D103
1N4148
ON
SW202-A
X-BASS
C123
220/10
SW202-B
X-BASS
ON
R125
680K
SW102-F
R P
C152
0.039
(ML)
R122
2.7K
TAPE
TUNER
R124
CD
R154
3.3K
2.2K
SW201-B
Q351
KTC8050 D
R354
10(1/4W)
D303
1N4004
+B
5 6
OFF R
2
R
OFF
2