Sony PMC-DR45 - Block Diagram - Tuner Section

PMC-DR45
6-3. BLOCK DIAGRAM — TUNER SECTION —
– 25 – – 26 –
1
18
2 3 4
11 12
20 19
Signal path
: FM
: AM
R-ch : same as L-ch.
CE
DI
CL
DO
AM IN FM IN XOUT XIN
13
MO/ST
10
IF IN
LPF2/MO-ST
LPF1/BAND
ST-IND
OSC-OUT
7
BAND
8
ST-IND
LP-OUT
AM
OSC
AM
MIX
FM
MIX
FM
OSC
AM
RF-IN
FM
RF-IN
FM
RF-OUT
X1
75kHz
PLL
IC2
14 17 13 18
16 15
11
12
1920
22 4 6
7
10
2
2124
T1
CF4
L2L1 CT1
RA6VRA6V
D4 D5
CT3
D3
T3
AM
FERRITE-ROD
ANTENNA
CT3,T3
AM
TRACKING
CT1,L1
FM
TRACKING
IF
BUFFER
AM
DET
FM
DET
IF CUT
AF
BUFFER
FM
MPX
MUTE
IF CUT
R-OUT
L-OUT
R-CH
RA6V
QUAD
FM/AM FRONT-END, IF DET,
FM STEREO DEMODULATOR
IC1
AM
FREQUENCY
COVERAGE
T4
RA6V
L4
CF2,3
RA6V
TUNER BOARD
04
RA6V
RA6V
FM OSC
AM OSC
MIX-OUT
AM
IF-IN
FM
IF-IN
IF-OUT
DET-OUT
MPX-IN
T2
L2
FM
FREQUENCY
COVERAGE
T1
AM IF
T2
FM IF
BPF
TM1
1
TAPE
SECTION
CONTROL BOARD (1/3)
MAIN
BOARD
(1/3)
7
8
9
10
11
27
28
29
30
31
5
4
3
2
1
-1
AM
-2
EXT ANT
7
8
9
10
11
11
14
13
15
52
B-MUTE
R-CONT
R-CLK
R-DATA
R-CE
SYSTEM
CONTROL
IC801(1/3)
B-MUTE
R-CLK
R-CNT/ST
R-DATA
R-CE
B-MUTE
R-CLK
R-CONT
R-DATA
R-CE
6
5
R-CLK
RA6V
L CH
RADIO 6V
AM
LOOP
ANTENNA
CNP305
(1/2)
CNP307
(1/3)
CNP1
(1/2)
CNP1
(2/2)
CNP801
(1/3)
(Page 29)