Sharp CD-C831W Service Manual page 14

CD-C831W
SO301
ANTENNA
TERMINAL
FE301
FM
8
75 ohms FM FRONT END
GND
2 6 7
AM
AM RF
AM ANT
T302
FM IF
1 CF302
5
3 4
VR351
FM MUTE LEVEL
FMOSC
AM OSC
T306
+B4
Q360 7
FM
VOLTAGE
REGULATOR
FROM CD SECTION
CNP11
L-CH
TAPE 1
R-CH
PB HEAD
REC
P.B
L-CH
TAPE 2
R-CH
REC PB HEAD
AC BIAS
ERASE
HEAD
Figure 14 BLOCK DIAGRAM (2/3)
+B4
+B4
AM IF
T351 CF352
FM IF IN
1 2 3 4 5 8 9
GND
OUT REG IN VCC
IC303
LA1832
IF
FM/AM IF MPX.
OUT
AM OSC
23 21 7 13 6 10
24 22
VOLTAGE
REGURATER
X352
4.5MHz
1
20 22 15 16 11 10 13 12
IC302
OSC
LC72131
PLL (TUNER)
3 4 5 6
21
Q371
CNS11
1
2
IC101
3
AN7345K
PLAYBACK AND RECORD
/PLAYBACK AMP.
L(T1)
1
R(T1) 24
L(T2)
2
R(T2) 23
SWITCHING
L NF 3
4
R NF
Q103~Q106
6 T1/T2
POP REDUCE
REC
L REC 9
R REC 16
14
REF
12
NOR/
HIGH
15
SWITCHING SWITCHING
Q107
Q108
Q109
SWITCHING
BIAS
OCS
Q128
L104
– 14 –
17 19 20 18 16
FM/AM MPX
OUT IN
14
11 12 15
L R
MUTING
Q361 MPX Q353
MPX
VCO Q354
PHASE
CUT
TUNER MUTE
+B4
+5V
17
JK601
VIDEO/AUX
L
AUX
R
TAPE
TUNER
CD
Q113
Q114
13 +B4
P.B.
4 PB
L
21
R
5
20
H/N
L REC
7
18
R
8 L NF
17
R NF
ALC
10
T1/T2
19
Q111
Q110
SWITCHING
Q124
L103
SWM3
FOOL PROOF
SWM4
F.A.S
SOLM1
SOLENOID
SWM5
CAM
+B5 –B1
8 4
3 IC563
KIA4558P
5
1
OPE AMP.
6 7
IC562
3 KIA4558P
OPE AMP.
8 1
4
FM
SW
+B5 –B1
+B7
KIA7
RE
11 10
5
L
R 16
L 4 IC601
R 17
M62439SP
L 3
AUDIO PROCESSO
R
18
L
2
R
19
1 9
20
Q121
Q122
MUTING
BAIS
Q126