Block Diagram - Sharp CD-CH1000 Service Manual

CD-CH1000
SWITCHING
Q351
VR351
10K(B)
FM
MUTE
LEVEL
A_+B
VD301
AM
T306
ANTENNA
BAND
3
PASS
BF301 2
FILTER
1
CNP303
FM/AM
AM
LOOP
ANTENNA
FM
(FM/AM)
13 MO/ST 12
TUN_L PHASE
14
L-CH OUT
TUN_R 15 R-CH OUT
PHASE 11
MPX IN
16
IF OUT 10
MPX
VCC 9
17
VCO
X351
CF351
456kHz
FM IF
8
FM DET
STEREO 7
SD
6
5
18 FM/AM OUT GND
19 AM LOW CUT 4
AM IF IN
20 VSM
21
AM RF IN
T351
22 FM AFC
REG
3
2
23 AM OSC IN AM MIX OUT
24 1
AM OSC OUT FM IF IN
10.7MHz
3
T306
AM OSC.
1
VD303
SVC211C
T312
9
FM OSC.
T311
8
7
6
VD302
5
SVC211C
4
3
2
+B
1
L312
FM RF
3 2 1
3 2
1
Figure 26 BLOCK DIAGRAM (1/6)
CF352
3
2
1
AM IF
AM IF
+B
CF302
FM IF
+B
2
VT_CK
FM IF
Q302
OSC BUFF
– 26 –
A_+B
Q360
SWITCHING
A_+B
ST IND
IF IN 11
12
13 IO2 MO/ST 10
NC 9
14 MUTE
AM IN 8
15 MW
16 7
FM IN
FM
17 VDD
Q371
6
18 PD DO
SWITCHING
19
C2B_CL
CL
5
C2B_DI
4
DI
C2B_CE
20 3
CE
AOUT
21 VSS 2
NC
1
22 X OUT X IN
IC302
LC72131
X352
4.5MHz
PLL(TUNER)
TP301
VSM
D_GND
C2B_CE
C2B_CL
C2B_DO
C2B_DI
C2B_DO
R-C
L-C
R
P