Read Sony ICF-CD853 / ICF-CD853L Service Manual online
ICF-CD853/CD853L
21
21
R54
R55
R56
R51
R52
R53
D53
D52
D54
BPF1
C53
C52
C51
X51
C55
C62
C24
R58
R61
C60
C59
R60
C61
R62
C57
C58
C56
C64
R63
D51
C63
R57
IC51
CT1
D2
D3
C5
C1
C2
R2
C18
C25
C26
C27
R19
C28
C29
R101
C101
R201
C201
C30
C31
R20
R14
C21
R15
C22
C13
C8
R8
R9
C14
C15
CT4
C19
R11
R13
RV1
R18
CF3
CF2
R16
C102
C202
R4
C33
R140
R240
R239
R139
C4
ANT1
TP
TP
R59
IC1
C20
R12
TP
TP
R17
T1
L1
L3
R6
R1
L2
R3
C3
CF1
C17
L3
D4
C6
D5
R10
C10
C11
R5
C9
R7
C12
L4
Q2
Q3
TP
CT2
C T 3
2.2k
2.2k
2.2k
1k
1k
1k
1SS119
1SS119
1SS119
47p
100p
100p
75KHz
100p
12p
0.01
22
10k
470p
0.33
10k
12p
100k
22
25V
0.01
0.01
1000p
10k
MTZJ-T-77
-13A
47
35V
4.7k
LC72137M
10p
HVU202ATRU
HVU202ATRU
100p
1000p
1000p
100k
0.01
4.7
50V
50V
1
47
10V
22
0.01
47
10V
4.7k
0.022
4.7k
0.022
0.01
1
220k
220k
0.47
2.2k
4.7
50V
50V
0.01
470p
100k
3.3k
330p
5p
50p
2.2
50V
50V
100
10k
22k
330
10.7MHz
450KHz
470
1
1
1k
220p
220k
220k
470k
470k
3p
(FM IN)
(RADIO B+)
10k
CXA1238N
100
10V
10V
100
(GND)
(FM ST)
2.2k
1M
100k
82nH
4.7k
10p
10.7MHz
100
10V
KV1610S
100p
KV1563
1M
10k
0.01
1M
2SC3931
2SC3931
(VT)
10p
50p
A3
A5
A7
A1
A2
A6
A4
A8
∗
∗
∗
IFIN
DQ
CL
DI
CE
102
101
BO3
BO2
BO1
AMIN
FMIN
VDD
PD
AIN
AOUT
XIN
XOUT
GND(D)
BO4
FE
GND
FM
RF
OUT
FM
OSC
AFC
AM
OSC
DISCRI
GND
RIPPLE
FILTER
OUT
AGC
IF
GND
AGC
FM
AM
BAND
MIX
PLL
LPF
REG
MPX
VCO
MUTE
REG
FM
ANT
AM
ANT
IFIN
IFIN
SW
TUNING
AFC(U)
AFC(L)
B+
OUT
LCH
RCH
ST
IND
PILOT
DET LPF
PILOT
DET LPF
PLL
LPF
FM
ANTENNA
(2/2)
FM/AM PLL
FM/AM RF AMP,
MIX,OSC,
DET,MPX
FM/AM IF AMP,
AM IFT
FERRITE-ROD
ANTENNA
FM RF
-1
-2
L3-2
LW
FERRITE-ROD
ANTENNA
L3-1
MW
OSC
FM
FERRITE-ROD
ANTENNA
AM
∗
(CD853)
(CD853L)
C12
15p
18p
∗
(CD853)
(CD853L)
C10
330p
390p
∗
(CD853)
(CD853L)
C11
22p
100p
AM OSC
SWITCH
LW
SWITCH
MW/LW
(CD853)
(CD853L)
(CD853L)
5-10. SCHEMATIC DIAGRAM – MAIN Section (2/2) –
•
See page 24 for Waveform.
•
See page 24 for IC Block Diagrams.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
(
no mark : FM
(
) : AM (MW)
〈〈
〉〉
: LW
(Page 20)
Click on the first or last page to see other ICF-CD853 / ICF-CD853L service manuals if exist.