Sharp CD-C811W Service Manual page 14

CD-C811W/821W
CD-C811W
SO301
ANTENNA
TERMINAL
FM
75 ohms
GND
AM
FROM CD PWB
CNP11
R-CH
RECORD/
PLAYBACK HEAD
FE301
8 1
FM FRONT END
5
2 6 7 3 4
AM RF
AM ANT
AM OSC
T306
T302
CNS401
1
2
3
4
TAPE 1
L-CH
PLAYBACK
HEAD
REC SWITCHING
TAPE 2
P.B
L-CH Q501~Q509
R-CH
AC BIAS
ERASE
HEAD
Figure 14 BLOCK DIAGRAM (2/5)
FM IF
AMP
FM IF FM IF
1 3 CF302 3
CF301 Q301 1
FM IF IN
1 2
OUT
VR351
AM
FM MUTE LEVEL
OSC
OUT
23
24
FMOSC
X352
4.5MHz
20 1 22
+B4
Q360 7
FM
PLL CONTROLLER
VOLTAGE
REGULATOR
IC501
AN7345K
PLAYBACK AND RECORD
/PLAYBACK AMP.
L(T1) 1
13
R(T1) 24 P.B.
4
L
L(T2)
2
21
R
R(T2)
23
L NF
3 5
4 20
R NF
6 T1/T2 H/N
POP REDUCE
7
18
REC
L REC 9
R REC
16
8
17
14
RIPPLE
NC
10
12
NOR/
CRO2 T1/T2
15 19
– 14 –
+B4
+B4
AM IF AM IF
T351 CF352
1 3
3 4 5 8
REG IN GND VCC
IC303
LA1832
FM IF DET./FM MPX./AF IF
21 7 6
22 13 10 11 12
Q361
SWITCHING
VOLTAGE
REGURATER
+B4
+5V
16 11 13 12
15 10 17
IC302
LC72131
4
3 5 6 21
Q371
PLL DATA
BUFFR
TAPE
L 4
R
17
TUNER L 3
AUDIO PROCESSOR
R
18
CD L 2
R
19
SWITCHING
Q514
+B4
Q515
Q516
PB
BIAS OSC
L REC
R
L NF
R NF
FOO
S
9
17 19
14
15
L R
MUTING
Q353
Q354
TUNER MUTE
+B4
11 10
IC401
R
13
M62439SP
8
L
1 9
20
Q512
Q513
SWITCHING
T