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

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