Schematic Diagram - Tuner Section - Sony ICF-CD555TV Service Manual

SCHEMATIC DIAGRAM – TUNER Section – •
6-9.
L3
AM FERRITE-ROD
ANTENNA
JC12 JC11
0 0
L11
(Page 41)
C32
0.001
D10 D11
1SS355 1SS355
•
See page 42 for Waveform. See page 43 for IC Block Diagrams.
C41
220p
D3 C42
KV1520NT 100p
C43
22p
CT3
R41 C49 R40 C47 C39
10k 0.01 220k 10p 0.1
C37
0.01
R32 R30 C80
100k 15k 0.01
C35 C33 C31
CT1
0.01 0.01 22p
L2
FM OSC
L1
FM
C34 C30
0.01 RF 0.01
JC3
0
R31
3.3k
C23
R24
1
220
50V
C13
0.01
JC13 C12
C9
0 4.7
10p
50V
C11
0.1
T1
AM IFT
TP
C1
(ANT)
47p
CF4
R2 JC6
470 0
R1
R3
330
10k
CF2
C10
C4 C8
1
0.001 0.001
50V C18
220
10V
R50
1k
L4
AM OSC
R91
220
C51 C52
22p 10p
X1
75KHz
R11
3.3k
C21
C24 C22
1
220p 0.1
50V
C20
0.1
FM/AM PLL
IC2
LC72137M-TLM
FM/AM RF AMP,
C61
MIX,OSC,IF AMP,
100p
DET,MPX
C62
IC1 100p
TA2149BN
C63
100p
C7
5p
T2
FM IFT
JC4
R61
0
2.2k
JC33 0
JC2 0 R10
JC34 0
C29
100
C14 C15
10V
0.022 0.022
29 29
R52 R65 R63
0 10k 10k
C65
C53 C56
4.7
0.22 0.001
50V
C54
R51 220
10k 10V
C59 R54
100p 470
C95
0.001
C55
100p
R53 C57
15k 0.001
C60
0.001
R4
10k
R94
1k
C68
R92 C66 100p
220 100p
10µH
R13
1k
R60 R59 R58
2.2k 2.2k 2.2k
47 JC1 0
C27 C26
TP
100p 100p
(GND)
ICF-CD555TV
TP
(VT)
JC5
0
R56
330
L21
CNP1
11P
MUTE
COUNT
PLL CLK
PLL DATA
PLL CE
LCH
R +B
RCH
(Page 33)
GND
VT
S-GND