Block Diagram - Tuner Section - Sony ZS-SN10 Service Manual

5-2. BLOCK DIAGRAM – TUNER SECTION –
ANT1
FM TELESCOPIC
ANTENNA
L1
FM RF
CT1, L1
CT1
FM TRACKING
L3
AM FERRITE-ROD
ANTENNA
CT3, L3
AM TRACKING
75kHz
• R-ch is omitted due to same as L-ch.
• SIGNAL PATH
: FM
: AM
ZS-SN10
FM/AM RF AMP, MIX, OSC,
FM/AM 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
AM FREQUENCY COVERAGE
COVERAGE
L4
AM
OSC
D3
(2/2)
D2
VT B+
LOW-PASS
FILTER
6 18
LOW-PASS
FILTER
XOUT
20
X1 REFERENCE
DIVIDER
XIN
19
UNLOCK
DETECT
FM/AM PLL
IC2
10
FM
IF-IN
CF2
FM IF FM
4 7
AMP DET
T1
AM IFT
AM IF
AM
IF-IN
CF4
AM IF AM
6
AMP DET
IF
BUFFER
19
17
L2
FM OSC
17 16 12 11 10
UNIVERSAL
COUNTER
PHASE
DETECTOR/
CHARGE PUMP
1/2
12 BIT
SWALLOW
PROGRAMMABLE
COUNTER
DIVIDER
SHIFT REGISTER & LATCH
13 13
T2
FM IFT
FM IF
DET MPX
-OUT -IN
AF AF
16 15 MPX
BUFFER AMP
LEVEL
DET
ST
IND
18 13 14
MUTING
Q808
8 9 7 13
DI
2
CL
3
CCB
CE
INTERFACE
1
DO
4
ZS-SN10
L-OUT
TU-L
B (Page 14)
12
MUTE
R-OUT
11
R-CH
STEREO/
MONO,
FM/AM
R DATA, R CLOCK, R CE,
R MUTING R COUNT, R MUTING
C (Page 14)
R DATA
R CLOCK
R CE
R COUNT