Read Sony ICF-CD853V Service Manual online
ICF-CD853V
21
21
5-9.
SCHEMATIC DIAGRAM – MAIN Section (2/2) –
•
See page 15 for Waveform.
•
See page 24 for IC Block Diagrams.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : FM/TV (2 – 6 CH)
(
no mark : FM/TV (2 – 6 CH)
(
) : AM
〈〈
〉〉
: TV (7 – 13 CH)/WEATHER (1 – 7 CH)
R62
C65
R54
R55
R56
R51
R52
R53
D53
D52
D54
C202
C102
C38
BPF1
C36
R12
R10
R13
R15
C46
C68
C70
C33
R18
R19
C43
R16
C29
D5
C28
C27
D4
C T 3
C41
C47
C48
C25
D3
CT2
C22
R11
C20
C19
D2
C18
C78
C77
C32
CT1
R6
RV2
C10
C11
C13
C14
C12
R7
C15
C16
R8
C17
Q51
L8
C3
C2
R5
C201
C101
C1
R3
R2
R1
RV1
R4
R111
R211
C44
R101
R201
Q53
R66
R65
Q52
C76
R64
C56
C58
R59
C63
C64
R58
C61
C66
C60
R57
C71
C62
R61
C53
C52
C51
C69
C37
C8
C5
C7
C6
L7
C4
C35
R9
C31
L52
C57
C55
X51
L53
JC4
R63
L3
L2
L1
JC5
L5
IC1
IC51
C54
ANT1
C9
C30
L54
Q2
TP
TP
TP
L4
TP
10k
0.01
2.2k
2.2k
2.2k
1k
1k
1k
1SS119
1SS119
1SS119
1
1
100p
22p
100k
10k
100k
100k
220p
100p
0.01
0.01
330
100
0
22k
1000p
HVU363ATRU
4p
1000p
HVU363ATRU
10p
100p
1000p
0.01
1000p
HVU363ATRU
10p
7p
1M
4700p
0.047
KV1610ST1-2
10p
0.01
100p
1000p
10p
1k
100k
0.1
0.1
22 25V
470p
1
470
1
0.47
2.2k
4.7
50V
50V
DTA144EUA
-T106
100
10V
10V
0.01
1k
0.022
0.022
10
50V
10k
2.2k
4.7k
4.7k
22
220k
220k
1000p
470k
470k
2SC4081
-T106
4.7k
10k
2SK209GR
1
10
0.33
470p
10k
12p
12p
10k
0.01
0.01
22
25V
10
1000p
100
25V
25V
100k
47p
100p
100p
1000p
1000p
10
50V
0.01
0.01
1
0.01
0.01
0
1000p
220p
100p
75KHz
100
0
CXA1960Q
LC72122V
1000p
4.7
50V
50V
2p
2SC3931
-C-TX
(VT)
(ANT)
(FM ST)
33nH
(RADIO +B)
A1
A2
A3
A4
A5
A6
A7
A8
S
IFIN
D
Q
CL
D
I
CE
102
101
B
O
3
BO
2
BO
1
AM
IN
FM
IN
VD
D
PD
AIN
AO
UT
XIN
XO
UT
GN
D(A)
G
ND
(D
)
VC
C
M
P
R
G
LO
U
T
R
O
UT
D
D
CN
P
LL
I
S
TID
M
CN
T
GN
D
V
CC
MPRM
V12M
MUTE
AAGC
DETO
PLT2
PLT1
PLL1
PLL2
REGV
FMBF
FALC
COMP
BAND
TUNE
PLLO
FM
IB
IFC
T
N
C
M
R
EF
AR
FI
FM
IN
T
VIN
G
N
D
(2/2)
TV RF
AM OSC
FERRITE-ROD
ANTENNA
AM
FM
R
O
OLA
G
TVRO
FTLO
AMLO
MPXI
TV/FM/AM RF AMP,
MIX,OSC,DET,MPX
BAND
SELECT
FM/AM PLL
Q52,53
LOW-PASS
FILTER
(TV/FM)
OSC BUFFER
RF
FM/TV
1
µ
H
1
µ
H
100
µ
H
1
µ
H
1
µ
H
TP
(AM GND)
TP
(FM GND)
FM/TV (2
−
6ch) TRACKING
TV (7
−
13ch),
WEATHER (1
−
7ch) TRACKING
(Page 20)
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