Sharp CD-MD3000H Service Manual page 48

CD-MD3000H/CD-MD3000W
SO301
FM ANTENNA
TERMINAL
FE301
8
FM FRONT END
2 6 7 3
CNP301
1 1
2
2
AM LOOP
ANTENNA
AM RF
L341
BALUN
AM ANTENNA
T302
FOR CD-MD3000H
FM
BAND PASS
FILTER
CNP303
BF301 3
1 1
1
AM
2
2 2
3
3
FM/AM
LOOP
ANTENNA
FM RF
FOR CD-MD3000W
FM IF
AMP.
FM IF
1 CF301 3 Q301
1
5
4
AM OSC.
T306 +B
VD301
Q360
SWITCHING
24 23 22 21
2 4
FM IF
6
IC301
1 TA7358AP
FM FRONT END
9
2 3 4 5 7 8
FM OSC.
T311
L312
VD303
VD302
Q302
OSC. BUFF
AM RF
AM ANTENNA
AM OSC.
T302 T306 +B
VD301
+B
Figure 48 BLOCK DIAGRAM (2/7)
+B
AM IF
FM IF
T351 1 CF352
CF302
1 3
3
FM IF IN
1 2 3 4 5 8 9
OUT REG IN GND
IC303
FM MUTE
LA1832S
LEVEL
FM IF DET./FM IF MPX./AM IF
AM OSC
VR351
24 23 22 21 7 13 6
10K(B)
A_+B
FMOSC
X352
4.5MHz
20 1 22 15 16 11 10 13 12
X IN X OUT
IC302
LC72131
7
FM
PLL (TUNER)
3 4 5 6
Q371
20 15 14 13
ICT21
LC72722
RDS DECORDER
3 7 12
+B
AM IF
FM IF
T351 1
T312 1 CF302
3
FM IF IN
1 2 3
OUT REG
FM MUTE
FM IF DET./FM IF MPX./AM IF
LEVEL
AM OSC
VR351 24 23 22 21
10K(B)
A_+B
FM OSC.
X352
4.5MHz
20 1 22 15 16 11 10 13 12
X IN X OUT IC302
FM
LC72131
Q360 7
PLL (TUNER)
SWITCHING
3
– 48 –
VSM
AMP.
QT21
+B
L354
L.P.F
17 19 20 18 16
FM/AM MPX
VCC
OUT IN
10 11 12 14 15
L
R
SWITCHING
Q351
8
9
21
SWITCHING
VSM
CF352
3 +B
4 5 8 9
17 19 20 18 16
FM/AM MPX
IN GND VCC
OUT IN
IC303
LA1832S
7 13 6 10 11 12 14 15
L
R
SWITCHING
8
9
4 5 6 21
Q371
SWITCHING
Q351