Sony ICF-CD73 / ICF-CD73V Service Manual ▷ View online
ICF-CD73/CD73V
25
25
6-9.
SCHEMATIC DIAGRAM – TUNER Section (ICF-CD73) –
•
See page 33 for Waveform.
•
See page 32 for IC Block Diagrams.
CNP1
C20
R30
R31
C34
C33
C35
C31
C30
C24
C22
C23
C37
R52
C53
C65
R50
R10
C29
C27
C26
R61
R60
R59
R58
C61
C62
C63
C66
C68
R94
C51
C52
R51
C59
R53
C95
C55
R54
C54
C56
C57
R65
R63
R4
C1
C11
C4
CF4
CF2
C8
C10
C12
C9
C47
C39
R40
R41
C49
C41
C42
C43
R32
D1
C32
D11
D10
C60
L21
R56
C80
R24
TP
JC5
JC1
JC4
JC2
JC34
JC6
R1
JC13
JC12
JC11
L11
L2
L1
L3
L4
TP
X1
TP
T2
C18
D3
R13
IC2
R92
R91
CT1
CT3
C13
T1
IC1
D2
JC24
ANT1
C14
C15
C77
C78
JC33
R11
C7
C21
JC3
R3
R2
11P
0.1
15k
3.3k
0.01
0.01
0.01
22p
0.01
220p
0.1
1
50V
0.01
0
0.22
4.7
50V
50V
1k
47
100
10V
10V
100p
100p
2.2k
2.2k
2.2k
2.2k
100p
100p
100p
100p
100p
1k
22p
10p
10k
100p
15k
1000p
100p
470
220
10V
10V
1000p
1000p
10k
10k
10k
47p
0.1
1000p
1000p
1
50V
4.7
50V
50V
10p
10p
0.1
220k
10k
0.01
220p
100p
22p
100k
KV1471E
1000p
1SS355
1SS355
1000p
330
0.01
220
(GND)
0
0
0
0
0
0
330
0
0
0
(ANT)
75KHz
(VT)
220
10V
10V
KV1520NT
1k
LC72137M-TLM
220
220
0.01
TA2149BN
KV1471E
0
4700p
4700p
0
3.3k
5p
1
50V
0
10k
470
∗
∗
R DATA
R CE
GND
RCH
LCH
VT
AM OSC
FM OSC
VCC1
R-OUT
L-OUT
QUAD
GND2
AM
FM
VCC2
AGC
LPF1
/BAND
LPF2
/MO-ST
GND1
FM
AM
FM
OUT
OUT
C
U
T
A
M
LO
W
C
E
D
I
C
L
D
O
BA
N
D
S
T-IN
D
IF
IN
X
O
U
T
X
IN
L
P
-O
U
T
L
P
-IN
P
D
V
S
S
V
D
D
M
O
/S
T
M
U
T
E
AM IFT
FM
OSC
FM
RF
ANTENNA
AM OSC
FM/AM RF AMP,MIX,OSC,
FM/AM IF AMP,DET,MPX
ANTENNA
FM/AM PLL
IFT
FM
AM FERRITE-ROD
BA
N
D
MUTE
COUNT
R CLK
R +B
FM
IN
A
M
IN
FM/A
M
(CND, MX)
(CND, MX)
(UK,IT)
FM LEAD WIRE
RF OUT
RF IN
OSC
ST IND
IF OUT
DET OUT
MPX IN
RF IN
MIX
IF IN
IF IN
(UK,IT)
∗
C14,15
(CND, MX)
0.022
0.01
(UK,IT)
S-GND
1
µH
10
µH
(Page 29)
Ver. 1.1
ICF-CD73/CD73V
26
26
CNP2
JW21
L6
D3
X61
CT5
L1
L2
IC1
CT3
L4
T1
CF4
CF2
T2
CT4
C20
C68
C29
C31
C39
L31
L11
L12
L15
C5
CT2
L16
L13
L14
C3
L17
JW3
JW4
JW5
JW7
JW11
JW12
JW13
JW14
JW15
JW16
JW17
JW18
JW19
JW20
C36
JW9
JW2
JW8
C72
C28
L5
AM FERRITE-ROD
ANTENNA
C4
C66
JW6
BPF1
JW23
JW1
JW22
JW25
R2
C35
C37
R1
D1
C41
IC2
C64
R62
R42
C52
R41
R51
C56
R52
R53
R54
C57
C58
C59
C60
C61
C62
R59
R58
R64
R66
R55
R81
R82
C71 C70 C69
C63
R72
R73
C77
C75
C76 R71
R63
C65
D22
R68
R69
C67
R75
R61
C54
R74
R33
C32
R23
R24
D2
D17
R25
R26
C40
R22
C18 C19
C6
C7
C1
C14
C15
C16
R17
R16
R11
R12
R15
D14
D15
R3
C55
C51
Q11
Q12
Q14
D21
R19
R67
R70
Q13
R37
C23
C24
C25
R6
C34
C33
C53
R31
R79
R84
C87
R5
R20
FB4
R18
D23
C86
FB5
C42
C43
C27
D24
C85
C89
C2
C22
D13
C90
C30
C26
C9
C10
D10
D11
JC1
JC2
JC3
JC4
JC5
JC6
JC7
JC8
JC9
JC10
JC12
C91
C92
L3
C13
C83
C21
C11
1
11
TUNER BOARD
1-688-737-
11
(11)
TP
(GND)
TP
(VT)
TP
(ANT)
A
LCD BOARD
1
5
1
2
3
4
5
6
7
8
9
10
11
A
B
C
D
E
F
ANT1
FM/TV/WEATHER
LEAD WIRE
ANTENNA
(SHIELD CASE)
6-10. PRINTED WIRING BOARD – TUNER Section (ICF-CD73V) –
•
See page 21 for Circuit Boards Location.
:Uses unleaded solder.
D23
C-8
D24
D-7
IC1
E-7
IC2
D-4
Q11
C-3
Q12
C-2
Q13
E-6
Q14
E-4
Ref. No.
Location
Ref. No.
Location
D1
C-8
D2
D-6
D3
B-5
D10
B-10
D11
B-10
D13
D-9
D14
C-9
D15
C-8
D17
D-6
D21
C-5
D22
E-4
• Semiconductor Location
(Page 28)
Ver. 1.1
ICF-CD73/CD73V
27
27
6-11. SCHEMATIC DIAGRAM – TUNER Section (ICF-CD73V) –
•
See page 33 for Waveform.
•
See page 32 for IC Block Diagrams.
R61
R59
L31
R54
R53
R52
R51
R81
R82
TP
JW21
CNP2
C62
R58
R64
C63
C
77
R66
JW13
C66
D22
R63
C65
R69
C68
X61
C70
C69
C71
C76
R74
C54
C75
Q14
R72
R73
R71
R55
C61
C60
C59
C58
JW20
JW19
C57
C56
C55
Q12
Q11
JW11
JW9
C51
Q13
R67
R70
R41
R42
C52
R37
C41
C40
R26
C37
C35
C39
C36
R25
R22
R20
D17
R23
C21
D24
C19
L16
D2
R24
FB5
R18
L15
C18
D1
C89
FB4
R17
R16
C14
L14
L13
R15
JW8
C33
JW15
C28
R31
R33
C29
C26
C30
C31
JW22
C32
L6
C27
JW17
C42
C43
JW16
JW14
D21
JW12
D3
L5
JW23
R79
C25
C24
C23
R12
R11
L11
L12
JW4
BPF1
TP
D13
JW3
C34
R1
R3
C1
C2
C3
T1
R2
C5
C6
C7
T2
R6
JW2
C90
C4
C87
C85
D11
D10
JW1
D23
C86
TP
C64
JW18
C72
R62
JC12
R75
JC9
JC8
JC10
R68
IC2
R84
JC6
JC7
C91
C92
C10
C9
CF2
CF4
JC3
JC4
IC1
JC1
C11
6P
JW5
ANT1
CT5
JC5
C16
C15
CT2
C13
D14
D15
L2
L1
L3
L4
R19
CT4
CT3
C22
JW
7
JW
6
JC2
JW25
C67
L17
C83
C53
220
2.2k
2.2k
2.2k
2.2k
2.2k
100
100
(VT)
11P
1000p
1k
10k
1000p
1000p
1k
220
10V
10V
KDZ3.3V
680
1000p
10k
0.47
75KHz
10p
6p
10p
6p
1k
0.01
0.047
KTC4082
3.3k
100k
100
1k
100p
100p
100p
100p
100p
100p
100p
KRA302-RTK
KRA302-RTK
1000p
2N3906U
100k
22k
100k
100k
0.01
470
0.1
0.1
3.3k
100p
220p
1
50V
1 50V
0
0
10k
KDS114
-RTK
470
470p
KDS112
-RTK
0.022
KV1471E
15k
680
0.022
KV1471E
22p
100k
1k
0.022
680
0.1
0.01
47k
220k
10p
47p
100p
220p
0.047
0.01
0.01
1000p
KDS121
-RTK
KV1520NT
0
0.01
1000p
1000p
1.5k
1.5k
(ANT)
KDS112-RTK
0.1
470
10k
1000p
1000p
1
50V
330
4.7
50V
50V
10p
6p
100
220p
220
R5
470
10V
0.047
1000p
1SS355TE
-17
1SS355TE
-17
1SS355TE
-17
0.022
(GND)
0.01
47
16V
1k
0
22k
0
0
0
4.7k
LC72137M-TLM
4.7k
0
0
100p
100p
0.022
0.022
0
0
TA2149BN
0
0
22p
0.01
KDS114-RTK
KDS114-RTK
1k
47p
C20
22p
22p
0
0.01
0.001
0.1
A1
A2
A3
A4
A1
A2
A3
A4
VT
C
E
D
I
C
L
D
O
S
T-IN
D
IF IN
X
O
U
T
X
IN
LP
-O
U
T
L
P-IN
P
D
V
SS
V
D
D
FM
IN
AM
IN
T
V-H
F
M
/TV
-L
T
V-H/W
B
AM OSC
FM OSC
VCC1
R-OUT
L-OUT
QUAD
GND2
AM
FM
VCC2
AGC
LPF1
/BAND
LPF2
/MO-ST
GND1
FM
AM
FM
A
M
LO
W
C
U
T
S-GND
FM/AM PLL
AM OSC
OSC
OSC
ANTENNA
AM FERRITE-ROD
FM/AM RF AMP,
MIX,OSC,
FM/AM IF AMP,
DET,MIX
FM IFT
AM IFT
1
5
TV ON
SWITCH
SWITCH
FM ON
ANTENNA
SWITCHING
RF OUT
RF IN
MIX OUT
RF IN
IF IN
IF IN
OSC OUT
ST IND
IF OUT
DET OUT
MPX IN
FM
/
A
M
/S
T
M
O
OSC
BUFFER
MUTE
COUNT
R CLK
R DATA
R CE
LCH
R +B
RCH
GND
LEAD WIRE
FM/TV/WEATHER
FM/TV
RF
RF
TV/WEATHER
FM/TV
TV/WEATHER
10
µH
10
µH
10
µH
10
µH
10
µH
10
µH
10
µH
2.2
µH
(Page 29)
Ver. 1.1
ICF-CD73/CD73V
28
28
LCD BOARD
(COMPONENT SIDE)
(11)
11
1-687-319-
L404
R448
R444
R443
R442
R441
C406
R440
C405
R439
R438
R455
R451
R450
R454
R492
R453
R457
C412
R446
R497
C411
R445
C408
R452
R449
C413
R458
R459
R460
C422
R465
R466
R471
C428
C429
C430
C431
C432
R353
R473
R474
R475
R476
R477
C435
R480
R467
R468
R470
R469
C423
C424
C425
C426
C416
C417
C418
C419
C420
C421
R491
C460
R461
R462
R463
R464
C414
C415
C409
L401
Q401
BC
E
R472
D352
A
K
A
K
D354
A
K
D351
R478
R479
C433
C434
R482
R485
C458
R488
R487
R486
C441
R484
C252
R253
R268
R267
R265
C256
R261
C156
R161
R162
C160
C255
R272
C260
R275
C261
R276
C253
C442
C443
R504
C450
C452
C407
R506
C436
L402
C445
R489
C446
R351
R354
R352
R252
C251
R277
R177
R176
R154
R172
R274
R256
R552
R554
R553
R556
R262
R279
C263
R257
R259
C258
C262
R278
R266
R166
R164
R160
C155
R157
R159
C163
R179
R264
R260
R167
R165
R178
C162
R156
R254
C438
C439
C440
R401
C401
R405
R403
C402
C403
C449
C448
R409
R407
IC401
R436
R437
R434
R435
R432
R433
R502
R495
R509
R494
C453
R500
R507
R498
C455
C454
R496
R501
R493
R510
R499
R508
A
K
A
D403
EC
B
Q405
EC
B
Q406
EC
B
Q403
A
K
A
D402
A
K
A
D401
C457
C456
C451
IC403
IC402
Q251
BC
E
Q301
BC
E
Q154
BC
E
Q254
BC
E
Q253
BC
E
Q252
BC
E
R152
C151
C152
R153
R168
R174
C158
R175
C153
C161
EC
B
Q151
EC
B
Q153
EC
B
Q152
L405
D353
A
K
1
2
11
10
CNP401
1
2
13
12
CNP402
1
22
LCD401
LIQUID CRYSTAL DISPLAY
C410
+
C437
+
C352
+
C351
+
C354
+
C353
+
C444
+
S502
S501
S503
C447
+
R505
X402
X401
1
6
2
1
1
11
(11)
11
1-687-319-
R456
D
CD BOARD
CNP702
C
POWER BOARD
CNP301
1
80
40
41
21
20
60
61
1
2
3
3
1
2
(SHIELD CASE)
(CD73: CND, UK, MX)
(CD73: IT, CD73V)
(CD73: UK)
(EXCEPT CD73: UK)
(CD73: IT)
(EXCEPT CD73: IT)
RADIO
ON
BAND
OFF
S503
CD
A
TUNER BOARD
CNP2
B
TUNER BOARD
CNP1
(CD73V)
(CD73)
LCD BOARD
(CONDUCTOR SIDE)
R613
R614
R615
R616
R601
R602
R603
R604
R605
R606
R608
R618
R619
R620
R622
R612
R609
R610
S607
S606
S609
S610
S611
S605
RV601
1
6
1
3
CNP601
CNP602
−
PRESET TUNING/PRESET TIMER
SELECT/ PRESET
S608
+
TUNE/TIME SET
TIMER SET
AUTO
OFF
1
S604
2
S603
3
S602
4
S601
5
TIMER
SET
ON/OFF
CLOCK
MODE
VOLUME
(11)
11
1-687-322-
KEY BOARD
2
1
S551
CD LID
OPEN/CLOSE
(11)
1-687-323-
11
SW BOARD
F
POWER
BOARD
W302
A
B
C
D
E
F
G
H
I
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
J
-1
-2
6-12. PRINTED WIRING BOARDS – MAIN Section –
•
See page 21 for Circuit Boards Location.
:Uses unleaded solder.
Ref. No.
Location
D351
D-11
D352
E-12
D353
E-11
D354
E-12
D401
C-9
D402
C-9
D403
F-8
IC401
F-10
IC402
D-10
IC403
C-9
Q151
C-12
Q152
B-12
Q153
B-12
Q154
C-12
Q251
C-11
Q252
A-11
Ref. No.
Location
• Semiconductor Location
Ref. No.
Location
Q253
B-11
Q254
C-11
Q301
D-12
Q401
H-11
Q403
D-9
Q405
E-8
Q406
D-8
(Page 30)
(Page 30)
(Page 22)
(Page 24)
(Page 26)
Ver. 1.1
Click on the first or last page to see other ICF-CD73 / ICF-CD73V service manuals if exist.