Schematic Diagram - Tu Board - Sony ICF-DVD57TV Service Manual

6-11. SCHEMATIC DIAGRAM – TU Board –
AM FERRITE-ROD
ANTENNA
L11 JC12
1µH 0
C32
1000p
R32
100k
C34
0.01
C13
0.01
TP
(ANT)
D
TRANS
BOARD
(Page 39)
ICF-DVD57TV
• See page 47 for Waveforms. • See page 50 for IC Block Diagrams.
L3
D3
C41
KV1520NT
220p
C42
100p
C43
22p
JC11 R41 C49 R40 C47 C39
CT3
0 10k 0.01 220k 10p 0.1
C37
0.01
R30 C80
22k 0.01
C35 C33 C13 D2
CT1
0.01 0.01 0.01 KV1471E
L2 R31 R33 C30 C31 R24
L1 3.3k 10k 0.01 22p 220
FM
FM
OSC
RF
JC3 0
220p
FM/AM RF AMP,MIX,OSC,
FM/AM IF AMP,DET,MPX
IC1
TA2149BN
R2
470
C1 JC13
47p 0
T1
AM IFT
CF4
JC6
R1 R5 0
470 1K
R3
10k
C10 C18
C8 C4 C11
1 220
1000p 1000p 0.1
50V 10V
L4
AM OSC
R50
1k
R91
220
C51
22p
R14
1k X1
75KHz
C24 C22 C20
R11 0.1 0.1
3.3k
C23
C21
1
1
50V
50V
11
C12
4.7
50V
C61 C62
100p 100p
C9 C7 JC4
10p 5p 0
R92
220
R61
2.2k
T2
FM
IFT
JC33
0
CF2
JC2 0
JC34 0
C15
0.22
C29
C14 100
0.22 10V
33 33
C65
R52 C53 R65 R63
4.7
0 0.22 10k 10k
50V
C54
C52 R51 C56
220
10p 10k 1000p
10V
R54
470
C59 R55 R53 C95 C57
100p 10K 4.7k 1000p 1000p
C55
100p
FM/AM PLL
IC2
LC72137M-TLM
C60
1000p
C63
100p
R94
1k
C66 C68
100p 100p
R60 R59 R58
2.2k 2.2k 2.2k
R10 47 JC1 0
TP
C27 C26
(GND)
100p 100p
ICF-DVD57TV
TP
(VT)
R4 JC5
10k 0
R56
R13
220
2.2k
R57
100
L21
CNP1
10µH
11P
MUTE
COUNT
PLL CLK
E
PLL DATA
PLL CE
MAIN
LCH BOARD
(3/4)
R +B
CN10
RCH
(Page 38)
GND
VT
S-GND