Block Diagram - Tuner Section (Cfd-S350L Model) - Sony CFD-S350 Service Manual

6-3. BLOCK DIAGRAM — TUNER SECTION (CFD-S350L MODEL) —
ANT1
FM TELESCOPIC
ANTENNA
L1
FM RF
CT1, L1
CT1
FM TRACKING
L3-1
MW
CT5
RADIO
+6V
LW SWITCH
Q43
L3-2
LW
Q42
Q41
L3
MW/LW
Q41, 42
FERRITE-BAR
MW SWITCH
ANTENNA
Q14
X1
75kHz
• R-ch is omitted due to same as L-ch.
• SIGNAL PATH
: FM
: AM (MW/LW)
CFD-S350/S350L
FM/MW/LW FRONT-END,IF AMP,DET,MPX
IC1
FM
RF-IN MIX-OUT
FM FM
2
RF AMP MIX
FM
FM
RF-OUT
24 OSC
D1
AM
RF-IN
AM AM
22
RF AMP MIX
OSC
BUFFER
-OUT
CT3 AM
D3
BUFFER
OSC
(1/2)
20 21
FM FREQUENCY COVERAGE
L4
AM (MW/LW)
OSC
LW
SWITCH
Q44
D3
(2/2)
D2
LOW-PASS
FILTER
6 18
LOW-PASS
FILTER
XOUT
20
REFERENCE
DIVIDER
XIN
19
UNLOCK
DETECT
PLL
IC2
10
FM
CF2 IF-IN
FM IF FM
4 7
AMP DET
T1
AM IFT
AM
CF4 IF-IN
AM IF AM
6
AMP DET
T1
AM IF
IF
BUFFER
19
17
L2
L2
FM OSC
VT REG
VT B+
Q61
17 16 12 11 10
UNIVERSAL
COUNTER
PHASE
DETECTOR/
CHARGE PUMP
1/2
12 BIT
SWALLOW
PROGRAMMABLE
COUNTER
DIVIDER
SHIFT REGISTER & LATCH
21 21
T2
FM IFT
T2
FM IF
DET MPX
-OUT -IN
AF AF
16 15
BUFFER AMP
MW/LW
HIGH CUT
Q12
LEVEL
DET
ST
IND
18
8 9 7 13
DI
2 2
CL
3
CCB
CE
INTERFACE
1 1
DO
4
CFD-S350/S350L
L-OUT TU-LOUT
B
12
MPX MUTE
(Page 22)
R-OUT
11
R-CH
STEREO/
MONO,
FM/AM
13 14
B MUTE
C
(Page 22)
R-DATA
R-CLK
R-CE
R-COUNT