Read Sony ICF-CD873L (serv.man2) Service Manual online
ICF-CD873L
5
5
1-4.
SCHEMATIC DIAGRAM – MAIN Section (2/2) –
R121
C121
R221
C221
R210
Q220
R220
C220
R120
FB501
L301
R302
R209
C204
R208
C
3
0
2
C
3
0
1
R
3
0
3
C
3
0
3
R109
C104
R107
C103
R207
C203
L505
R105
R103
C101
R104
R106
C102
C546
C545
C544
L502
L504
C541
C542
R547
R554
R203
C202
C201
R204
L503
X501
R101
R102
C547
C549
C551
C550
R202
R201
R205
R206
D501
C562
C566
C
5
6
5
C
5
6
4
C
5
6
3
C567
C537
R542
R543
R544
C538
Q120
C120
C324
R222
R122
R18
TP8
TP7
C22
R20
IC1
C17
CF3
C18
R2
R1
C5
R9
R10
R14
C36
C10
CT4
C15
C14
L4
C13
C12
R6
D4
C6
R58
D1
C60
R57
R51
R50
C
5
0
C
5
2
C
5
3
X50
TP50
C54
R53
Q51
Q50
C62
C61
R59
C67
L50
R
5
4
R320
C320
C321
R322
W707
W706
C472
W8
CN502
CN302
RV301
CN301
R19
C20
C21
Q2
R4
IC50
C559
C105
C
5
3
6
Q321
R5
BPF1
R16
Q320
C
2
0
5
D320
TP53
R110
C412
C27
C31
C32
C
3
0
R17
C29
L5
C23
R13
RV1
R12
R56
R7
TP13
CT1
C16
TP12
C3
C4
R3
C2
L2
C1
C
T
3
CT2
C9
C7
R324
R325
IC320
C322
R60
L51
R553
C540
C539
R545
R546
C543
R321
C
5
1
R
5
2
RV302
L302
C
5
5
C56
C57
C58
C66
C64
C63
D2
D3
C19
R15
BH570
IC502
R55
L3-2
L3-1
ANT1
T1
L1
C
5
6
1
C560
R108
R540
C65
C59
R548
C548
D321
R8
Q1
C323
C
F
2
CF1
C25
C24
C26
C28
M570
M571
S570
R11
R323
2.2k
4.7
50V
50V
2.2k
4.7
50V
50V
0
2SC2412K
1k
1000p
1k
1.1UH
4.7k
2.2k
47p
10k
2
2
0
1
0
V
0
.0
1
4
.7
k
1
0
0
1
6
V
2.2k
47p
10k
47p
10k
47p
47k
22k
47p
22k
47k
100p
100
16V
16V
0.01
0.01
0.01
0.22
220k
10k
22k
100p
47p
22k
16.933MHz
22k
22k
1000p
47p
0.01
10p
22k
22k
47k
47k
1SS120RX
100p
100p
1
0
0
p
1
0
0
p
1
0
0
p
100p
0.47
1k
3.3k
10k
470p
2SC2412K
1000p
0.01
1k
1k
6.8k
100p
470
CXA1238M
47
16V
10.7MHz
2.2
50V
50V
100k
100k
1000p
100k
3.3k
220k
22p
390p
30p
39p
270p
0.01
15p
1M
KV1563MTL
-2.3
470p
10k
1SS226-
TE85L
0.33
10k
470
4.7k
1
0
0
0
p
4
.7
5
0
V
1
0
0
0
p
75KHz
33p
1k
2SC2412K
2SC2412K
0.01
0.01
100k
100p
1
k
4.7k
10
50V
1000p
1k
10P
10P
100p
6P
7P
7P
220k
0.47
4.7
50V
50V
2SC2714
10k
BU2614FS
0.01
470p
0
.1
2SC2412K
1M
2.2k
DTA124EKA
4
7
0
p
1SS355-TE-17
0
0.01
0.01
1
0.01
0
.0
1
5
6.8k
0.015
0.01
10k
22k
100
10k
4.7k
10p
0.01
10p
3p
4.7k
1000p
1000p
3
0
p
10p
0.01
120p
10k
1k
BU4066BCF
0.01
10k
100k
100
10V
10V
100p
1M
10k
0.01
10k
1
0
5
0
V
1
k
0
1
8
p
100p 100p 100p
1000p
0.01
47
35V
1T362-04
-T88
1T362-04
-T88
100
10V
10V
2.2k
7P
CXD2508AQ
1k
1
0
0
p
100p
10k
10k
100p
470p
100k
0.1
DAP202K
1M
2SC2714
1000p
1
0
.7
M
H
z
450KHz
1
4.7
50V
50V
47
16V
47
16V
1k
1k
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
A21
A22
A23
D1
D2
D3
E1
E2
E3
E4
F1
F2
F3
H1
H2
H3
H4
I1
I2
I3
I4
J1
J2
J3
MDP
MDS
FILD
FILI
PCO
VDD
AVSS1
CLTV
AVDD1
RF
BIAS
ASYI
ASYO
ASYE
W
O
C
K
LR
C
K
L
R
C
K
I
P
C
M
D
P
C
M
D
I
B
C
K
B
C
K
I
G
T
O
P
X
U
G
F
X
P
C
K
G
FS
R
F
C
K
V
S
S
C
2
P
O
X
R
O
F
M
N
T
1
M
N
T
0
F
S
T
T
C
4M
D
O
U
T
E
N
P
H
E
M
P
H
I
W
F
C
K
M
N
T
3
DTS3
DTS2
RPWN
NRPWN
AVSS2
AVSS3
XTAO
XTAI
AVDD3
AVDD2
LPWM
NLPWM
VDD
DTS1
ZEROR
ZEROL
M
O
N
FO
K
X
L
O
N
X
T
S
L
S
P
O
C
C
P
O
B
S
P
O
A
C
L
K
0
X
T
L
0
D
A
T
0
C
N
IN
S
E
IN
V
S
S
C
L
O
C
K
X
L
A
T
D
A
T
A
S
E
N
S
M
U
T
E
S
Q
C
K
S
Q
S
O
E
X
C
K
S
B
S
O
S
C
IR
V MUTE
CD ON
BUZZER
AC IN
CD 5V
CD GND
CD 6V
CD GND
GND
5V
LOCK
TEST
POWER ON
BASS ON
GND
VT
L CH
GND
R CH
VOL OUT
VOL IN
F
M
F
M
R
F
R
EG
F
M
O
S
C
A
FC
AM
O
S
C
M
U
TE
D
IS
C
R
I
VC
O
M
PX
R
E
G
P
LL
AM
B
A
N
D
A
M
IFIN
IFIN
FM
AG
C
A
G
C
R
IP
P
LE
FIL
TE
R
LC
H
O
U
T
R
C
H
O
U
T
S
T
IN
D
P
IL
O
T
P
ILO
T
P
L
L
L IN
R IN
L OUT
GND
VOL IN
R OUT
VOL OUT
BA4558F
BA4558F
SL +
SL -
SP -
SP +
SW
GND
5V
(SLED)
(SPINDLE)
(LIMIT)
VOLUME
-1
-2
MEGA BASS
G
N
D
L
PF
2
LP
F1
D
E
T LP
F2
D
ET
L
P
F2
V
C
C
A
FC
1
A
FC
2
G
N
D
IN
D
T
U
N
E
S
E
LEC
T
FM
/A
M
FE OUT
FM
G
N
D
R
F IN
R
F IN
FM/AM
FRONT-END,
FM/AM DET,
MPX
(FM IN)
(VT)
MUTING
MUTING
MEGA BASS
MUTE
CD/TUNER
SELECT
SWITCH
V
D
D
V
S
S
Q50,51
LOW-PASS
FILTER
V
S
S
P
D
1
V
D
D
1
V
D
D
2
F
M
IN
A
M
IN
P
2
IF
IN
X
O
U
T
X
IN
C
E
C
K
D
A
C
D
P
0
P
1
FM/AM PLL
FM WIRE
ANTENNA
MUTING
CONTROL
SWITCH
LOW-PASS
FILTER
IC301(1/2)
IC301(2/2)
X
R
S
T
DIGITAL SIGNAL PROCESSOR,
CLV SERVO,D/A CONVERTER
FM OSC
(VCO)
(+B)
(FM IN GND)
(VT GND)
(LW)
(MW)
(1/3)
(3/3)
(2/3)
MW/LW OSC
MW/LW
SWITCHING
ANTENNA
MW/LW
FERRITE-ROD
L3
MW/LW SWITCHING
FM RF
(2/2)
47
µH
10
µH
10
µH
10
µH
10
µH
47
µH
10
µH
4.7
µH
(Page 4)
(Page 7)
(Page 7)
(Page 7)
Click on the first or last page to see other ICF-CD873L (serv.man2) service manuals if exist.