Sony CFD-E77L - Block Diagram - TUNER Section

CFD-E77L
2020
6-2. BLOCK DIAGRAM – TUNER Section –
2
24
4 7
20 21
FM
RF AMP
FM
MIX
FM
OSC
FM IF
AMP
IF
BUFFER
AF
BUFFER
AF
AMP
MPX
MUTE
STEREO/
MONO,
FM/AM
AM IF
AMP
FM
DET
AM
DET
6
FM RF
IN
22
AM
RF AMP
MW BAND
SELECT SWITCH
Q14
AM
MIX
AM RF
IN
MIX OUT
OSC
OUT
CF2
10.7MHz
FM/AM PLL
IC2
CF4
450kHz
FM
RF OUT
10
QUAD
FM
IF IN
12
15
11
L-OUT
MPX
IN
R-OUT
13
AM
IF IN
LPF1/BAND
AM OSC FM OSC
FM/AM RF AMP, MIX, OSC,
FM/AM IF AMP, DET, MPX
IC1
L2
FM VCO VOLTAGE
L4
LW VCO VOLTAGE
CT1, L1
FM TRACKING
T1
AM IFT
LOW-PASS
FILTER
LOW-PASS
FILTER
: FM
: MW/LW
X1
75kHz
CT3
L1
FM RF
XOUT
XIN
AM IN
IF IN
ST-IND
LP-OUT
LP-IN
FM IN
21
20
111218
MW/LW
6
CT1
D1
L4
MW/LW OSC
L2
FM OSC
LEVEL
DET
ST
IND
14
LPF2/MO-ST
AM
OSC
BUFFER
BUFFER
SWALLOW
COUNTER
UNIVERSAL
COUNTER
CCB
INTERFACE
REFERENCE
DIVIDER
UNLOCK
DETECT
12 BIT
PROGRAMMABLE
DIVIDER
PHASE
DETECTOR/
CHARGE PUMP
SHIFT REGISTER & LATCH
1/2
BAND
DI
CL
CE
DO
DET
OUT
ANT1
FM TELESCOPIC
ANTENNA
PD
IF OUT ST IND
2
3
1
4
10 9
BAND
7
MO/ST
13817 16
17 18
16
19
CT5
D2
D3
(1/2)
D3
(2/2)
AM HIGH
CUT
SWITCH
Q12
T1
AM IF
Q43
Q42
Q41
B+
Q41, 42
MW SWITCH
L3-1
MW
L3-2
LW
L3
MW/LW FERRITE-ROD
ANTENNA
MW
TRACKING
CT3, L3-1
LW
TRACKING
CT5, L3-2
Q44
LW
SWITCH
Q43
LW SWITCH
R-DATA
R-CLOCK
R-CE
R-COUNT
R-CH
(Page 21)
R-MUTE
TU L-OUT
(Page 21)
B
T2
FM IFT
T2
FM IF
D10 D11
D
(Page 21)
C
R-DATA, R-CLOCK,
R-CE, R-COUNT
TC POWER
B+
D321
CONSTANT
CURRENT
Q61
R-ch is omitted due to same as L-ch.
SIGNAL PATH
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com