Diagrams; Block Diagram -Tuner Section - Sony PMC-D307L Service Manual

6-1. BLOCK DIAGRAM — TUNER SECTION —
TU1
TUNER UNIT
1 5 8 6 7
CNP2
CF1
EXT ANT
FM
FM B+SW
Q24
CT5, L5
LW TRACKING
MW/LW LOOP
CNP1
L3
ANTENNA
MW/LW
MW RF
LW SW
Q1
MW SW
Q2
MW SW
Q3
L5
LW RF
Signal Path
: FM
: MW/LW
04
R-ch : same as L-CH.
SECTION 6

DIAGRAMS

FM
CF2
IF IN
IF AMP
6
Q4
IF MUTE
Q8
RADIO7.5V
CT4, L3 L4
MW TRACKING LW
FREQUENCY
COVERAGE
AM
AMP RF IN
24
Q6
D5
L4
AM OSC
AM
OSC
22
CT5 CT4
LW
SW
LW
Q7
SW
Q5
LW SW
Q22
VT
CONTROL
Q13
MW SW
Q21
– 18 –
FM/AM RF AMP, OSC, IF AMP, DET
IC1
DET
OUT
FM FM/AM
17 T1
DET BUFFER
IF
BUFFER
AM
DET
7 14 15 18
CFT1
MIX
OUT
AM
3
MIX
CFT1
AM IF
MONO-ST BAND AM
SW SW HI-CUT
Q12 Q10 Q9
OSC
OUT
AM
19
IF SW
OSC
Q11
14 IF IN
13 P6
9 MO/ST
16 AM IN
8 FM
PLL
17 FM IN
10 LW
21 PD1
11 MW
MPX L OUT
A
L-CH
11
IN FM TAPE SECTION
16
R OUT
MPX
12
R-CH
13 10
CF4
STEREO
SW
Q17
SYSTEM CONTROL
IC801 (1/3)
24 R ST
95 B MUTE
CD 7 25 R COUNT
DA 6 26 R DAT
CK 5 27
R CLK
CE 4 28 R CE
IC2
XOUT 1
X1
75kHz
XIN 2
– 19 –
PMC-D307L