Sharp CD-BA2010H Service Manual page 22

CD-BA2010H
SO301
ANTENNA
TERMINAL
FE301
8
FM FRONT END
2 6 7 3
AM LOOP ANT
L341
BALUN
AM RF
AM
TRACKING
T303 T306
MOTOR
DRIVER
TAPE
Q708
M
MOTOR
Q704
SOLENOID
Q705
IC701
T2 PLAY
54PIN
IC701
T1 PLAY
53PIN
IC701
F. PLAY
55PIN
FROM CD SECTION
CNP11
CNS601
TAPE 1
L-CH
PB HEAD R-CH
REC
SWITCHING
P.B
Q103-
TAPE 2 Q106
L-CH
REC PB HEAD
R-CH
AC BIAS
SWITCHING
ERASE BIAS
OSC
HEAD
FM IF
AMP
FM IF FM IF
1
CF301 Q301 CF302
5
FM IF IN
4
1 2
AM OSC
24
FMOSC
AM BAND
COVERAGE
+B4
X352
4.5MHz
+B4
20 1 22
OSC
Q360
7
FM
VOLTAGE
REGULATOR
24 23 22 21 20
ICT21
LC72722
RDS DECORDER
2 4 3 7 8
+B3
+B3
1
2
3
IC101
AN7345K
PLAYBACK AND RECORD
/PLAYBACK AMP.
1
L(T1)
VCC 13
R(T1) 24
P.B
4
2
L(T2)
21
23
R(T2)
3
L NF 5
4 20
R NF
H/N
6
POP REDUCE T1/T2 7
18
L REC 9
REC
16
8
R REC L NF
17
R NF
14
REF
11
10 ALC
NOR/
12
HIGH T1/T2
19
15
SWITCHING
Q107
Q111
Q108
+B4
Q109 Q110
SWITCHING
Q128
Q124
L104
SWITCHING
Figure 22 BLOCK DIAGRAM (2/3)
+B4
+B4
AM IF
T351
3 4 5 8 9
17 19 20 18
OUT REG IN GND VCC FM/AM
OUT
IC303
LA1832
IF
FM/AM IF MPX.
OUT
23 22 21 7 13 6 10 11 12
15 16 11 10 13 12 9
IC302
LC72131
PLL (TUNER)
3 4 5 6 21
QT22
15 14 13
12
JK601
VIDEO IN
L AUX
R
TAPE
TUNER
CD
+B4
L
P.B
R
L
REC
R
+B4
BIAS
Q126
– 22 –
AMP.
QT21
L354
L.P.F
16
MPX
IN
14 15
L R
+B4
23
9
L
R
16
10
L
IC601
R 15
LC75341
11
L
AUDIO PROCESSOR
R
14
12
L
R 13
L R
7 8 17 18 3
Q121
Q122
MUTING
-B2
+B4
-20dB
ATT
Q605
Q603
Q606
Q604
21 R
4
L
+B4
REC
8
1
IC561
IC562
IC563
7
4
OPE AMP.
KIA4558P
T1/T2
BIAS