Block Diagram - Tuner Section - Sony CFD-E100WHITE Service Manual

CFD-E100/E100L
6-2. BLOCK DIAGRAM – TUNER Section –
ANT1
FM TELESCOPIC
ANTENNA
L1
FM RF
CT1, L1
CT1
FM TRACKING
(CFD-E100)
L3 CT3, L3
AM FERRITE-ROD
AM TRACKING
ANTENNA
L3
CT3
MW/LW FERRITE-ROD
ANTENNA
L3-1
MW
(CFD-E100)
CT5
+6V
MW/LW CV
Q43
L3-2
LW ON
LW
(CFD-E100L)
Q41 Q42
CT3, L3-1
MW
Q41, 42
TRACKING
MW ON
MW/LW SWITCH
CT5, L3-2
Q14
LW
TRACKING
(CFD-E100L)
75kHz
CFD-E100/E100L
FM/AM RF AMP, MIX, OSC,
FM/AM IF AMP, DET, MPX
IC1 (CFD-E100)
IC1 (CFD-E100L)
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
D3
AM
(1/2)
BUFFER
OSC
20 21
FM CV VOLTAGE
L4
L4
AM CV
AM
VOLTAGE
(CFD-E100L)
OSC
L4
Q44
D3
LW ON
(2/2)
VOLTAGE
D2
LOW-PASS
FILTER
6 18
LOW-PASS
FILTER
XOUT
20
X1
REFERENCE
DIVIDER
XIN
19
UNLOCK
DETECT
FM/AM PLL
IC2 (CFD-E100)
IC2 (CFD-E100L)
10
FM
CF2 IF-IN
FM IF FM
4 7
AMP DET
T1
AM IFT
AM
CF4 IF-IN
AM IF AM
6
AMP DET
T1
AM IF
IF
BUFFER
19
17
L2
L2
FM OSC
(CFD-E100)
VT
CONSTANT
CURRENT
Q61
(CFD-E100L)
17 16 12 11 10
UNIVERSAL
PHASE
DETECTOR/
CHARGE PUMP
1/2
12 BIT
SWALLOW
PROGRAMMABLE
COUNTER
DIVIDER
SHIFT REGISTER & LATCH
22 22
T2
FM IFT
T2
FM IF
DET MPX
-OUT -IN
AF AF
16 15 MPX
BUFFER AMP
MW/LW
HIGH CUT
Q12
LEVEL
DET
ST
IND
18 13 14
R MUTING
MUTING
Q801
8 9 7 13
COUNTER DI
2
CL
3
CCB
CE
INTERFACE
1
DO
4
L-OUT TU-L-OUT
B (Page 23)
12
MUTE
R-OUT
11 R-CH
STEREO/
MONO,
FM/AM
• R-ch is omitted due to same as L-ch.
• SIGNAL PATH
: FM
: AM (MW/LW)
R DATA, R CLOCK, R CE,
R COUNT, R MUTING
D (Page 23)
R DATA
R CLOCK
R CE
R COUNT