Block Diagram -Tuner Section - Sony ZS-M35 Service Manual

6-3. BLOCK DIAGRAM — TUNER SECTION —
TUNER BOARD
CT1,L1
FM/AM FRONT-END
ANT1
FM
IC1 (1/2)
TRACKING
FL1
FM RF-IN FM
B.P.F 2
MIX
L2
L1 FM RF OUT
24
FM FM RF
FREQUENCY
D1
CT1
COVERAGE
L2 FM OSC FM
21
FM OSC OSC
D2
TB1
L3
AM ANT
AM
D3
ANTENNA
AM RF-IN AM
22
MIX
CT2
CT2, L3
AM
TRACKING
L4
AM L4
AM OSC AM
FREQUENCY AM 20
OSC
COVERAGE OSC
RADIO +B
04
– 43 –
FM
CF1 CF2
MIX-OUT IF-IN
4 7
AM IF
T1
AM
CF3
IF-IN
6
IF
BUFFER
18 17
PLL, LOW-PASS FILTER
IC2
OSC-OUT FM-IN
19 12 1/2
SWALLOW
12BITS
COUNTER
PROGRAMMABLE
1/16, 1/17
AM-IN DIVIDER
11 4BIT
PD
PHASE DETECTOR
16
CHARGE PUMP
LP-IN
17
REFERENCE ST-IND
8
DIVIDER
MO/ST
13
IF-IN
18
10
LP-OUT
DATA SHIFT
X IN
REGISTER
19
LATCH
X1
75kHz
X OUT BAND
20 7
CCB/IF
1 2 3 4
COUNT
CLK
DATA
CE
L6
IF, DET, FM MPX
IC1 (2/2)
10
L-OUT
12
DIVIDE
DET-OUT MPX-IN
FM AM/FM
16 15 DECODE MUTE
DET BUFFER
R-OUT
VCO 11
AM
DET
14 13
• SIGNAL PATH
: FM
: AM
R-CH : Same as L-CH.
– 44 –
CN1
2
RA-LCH
R-CH
A
MAIN
SECTION
(Page 51)
6
TU COUNT
7
RCLOCK
8
R DATA
9
R CE
– 45 –
ZS-M35