Block Diagram -Tuner Section - Sony CFD-RG880CP Service Manual

CFD-RG880CP
7-2. BLOCK DIAGRAM – TUNER Section –
ANT1
FM
TELESCOPIC
ANTENNA
D10
D11
CT1,L1
FM
TRACKING
L2
FM
FREQUENCY
COVERAGE
CT3,L3
AM
TRACKING
L4
AM
FREQUENCY
COVERAGE
L4
RADIO 6V
CFD-RG880CP
FM/AM FRONT-END
IF AMP,DET,FM MPX
IC1
FM RF IN FM
2
MIX
RADIO 6V
L1
FM RF OUT
24
RADIO 6V
D1 CT1
L2
FM
FM OSC
21
OSC
D2
L3
FERRITE-ROD
D3
ANTENNA
AM RF IN AM
22
MIX
CT3
RADIO 6V
AM OSC AM
20
OSC
D909
U-COM(VDD)
CF2
MIX OUT FM IF-IN
4 7
T1
CF4 AM IF-IN
6
T1
AM IF
14 18
13
FM/AM PLL
IC2
6V
14 VDD
OSC
OUT
19 12 FM IN
11 AM IN
MO/ST
13
ST IND
8
BAND
7
IF IN
10
20 XOUT
X1
75kHz
XIN
19
18 LP OUT
DO 4
17 LP IN DI
2
CL
3
CE
16 PD 1
26 26
RADIO 6V
T2
T2
FM IF
10 23 5
QUAD VCC1 VCC2
FM
DET
MPX-IN
FM/AM DET OUT FM
16 15
BUFFER MPX
AM
DET
IF
BUFFER
IFOUT
17
• R-CH is omitted due to same as L-CH.
• Signal Path
SYSTEM CONTROL
IC801(2/4)
MUTE
SWITCH O-TU-MUTE
34
Q833
33 I-TU-COUNT
36
O-TU-DATA
35 O-TU-CLK
37 O-TU-CE
B
MAIN
TU LCH
12
MUTE SECTION
R-CH
11
(Page 27)
: FM
: AM