Sony CDX-S2020 Service Manual ▷ View online
17
17
CDX-S2020
CDX-S2020
3-5. SCHEMATIC DIAGRAM — CD MECHANISM SECTION — • Refer to page 15 for Waveforms.
• Refer to page 23 for IC Block Diagrams.
IC B/D
MAIN
BOARD
(2/2)
CNP301
(Page 20)
TP1
TP2
TP3
TP4
TP11
TP12
TP13
TP21
TP24
TP70
TP71
TP72
TP73
TP74
TP75
TP90
TP91
TP92
TP93
TP93
TP100
C13
C17
C20
C28
C30
C31
C34
C36
C37
C38
C39
C5
C70
C71
C73
C74
C75
C76
C77
C79
R1
R12
R14 R15
R7
R70
R71
R72
R73
R74
R75
R76
R77
R78
R79
R80
R81
R82
R83
R84
R85
TP19
C18
R6
C25
TP20
TP22
TP23
TP25
C32
C27
C26
C29
C1
C2
C7
C11
C78
C72
C19
SW4
SW2
SW3
SW1
TP33
TP32
R13
R11
CN2
Q1
M901
M902
M903
C6
X1
R41
R42
CN1
C23
C21
R9
IC1
R44
R45
JR91
JR90
JR41
JR40
IC2
C35
R2
R3
R4
R5
R8
R10
FB2
FB1
FB3
TP26
TP27
TP28
TP29
TP30
TP31
TP14
TP5
TP6
TP7
TP8
TP9
TP10
TP40
TP41
TP42
TP43
TP44
TP45
TP46
TP47
TP48
TP49
TP50
TP51
TP52
TP53
TP54
TP55
TP56
TP57
TP58
TP59
TP60
TP61
TP62
TP63
TP64
TP65
TP80
TP81
TP82
TP83
TP84
TP84
TP85
TP87
TP88
TP89
TP27
TP28
TP29
Note:
• Voltage is dc with respect to
ground under no-signal conditions.
no mark : CD PLAY
no mark : CD PLAY
18
18
CDX-S2020
CDX-S2020
3-6. PRINTED WIRING BOARD — MAIN SECTION —
: Uses unleaded solder.
1
A
B
C
D
E
F
G
H
I
J
2
3
4
5
6
7
8
9
10
11
12
13
14
Q431
Q441
Q478
Q479
Q651
Q582
C502
R508
R509
R513
R514
D501
C504
C508
C507
R510
R511
R512
Q664
R517
R523
R524
R525
R526
R527
R528
R530
C413
R405
R406
R407
R409
R408
D1
C6
R2
R3
C2
C1
Q22
R29
R501
C501
R503
D502
R582
D580
Q581
R651
R653
R654
D651
R609
D609
R632
D631
R634
R633
Q631
R636
Q580
R521
R522
R585
R584
D581
R583
R532
R531
R441
R431
JC753
R432
R442
R502
C343
R674
R671
R672
R534
R756
C755
R752
C7
C10
R479
D479
C770
C769
R433
R443
R635
R1
R536
R535
C404
C405
C452
C462
C432
C442
C756
Q1
IC501
R453
R463
FMB3
FMB4
C11
C509
R504
R505
R673
L303
L302
L1
R540
R541
L305
L306
L304
L307
IC401
C510
C512
C513
C514
C515
C516
R544
R507
R506
R543
R539
JC501
C53
C54
C55
C56
C57
C58
C59
C60
C62
R51
R52
R53
R54
R55
R56
R57
R58
R547
JC681
IC51
R548
R550
R461
R462
Q461
R451
R452
Q451
C763
D719
R4
R5
R6
R7
R8
R9
R518
R557
R559
R560
R563
R564
C621
JC503
IC602
R565
R566
R567
R549
D710
D711
D716
D717
D718
D715
D720
C617
C764
C765
C751
C771
C750
C602
JC331
R10
R11
R705
R706
C12
C13
R59
JC401
R571
R572
Q51
Q52
R60
R61
C517
C518
R301
R302
L301
C306
C307
C308
L561
L562
L563
JC1
FB602
FB603
FB605
FB604
JC511 JC512
JW
4
JW
5
JW
10
JW
11
JW
12
JW
13
JW14
JW15
JW16
JW
20
JW22
JW
29
JW31
JW32
JW33
JW36
JW37
JW64
JW65
JW
75
JW
76
JW
79
JW
80
JW
86
JW90
JW100
JW101
R631
JW
104
JW
105
CN601
C431
C461
C451
JW
102
C3
C401
JW93
CN701
S702
C301
C302
R652
C601
J1
TU1
X51
C761
C303
X502
C758
C752
C441
D760
D601
C631
JW9
D758
C759
IC750
JW
28
C754
C407
C406
JW1
JW2
JW
8
JW17
JW95
JW96
JW97
JW
68
C622
JW
73
JW
71
JW
74
JW
70
JW63
JW
51
JW
52
JW
53
JW
55
JW
66
JW
49
JW
48
JW47
JW
45
JW
46
C305
JW50
JW91
JW
41
JW115
JW117
JW
120
JW
121
JW
122
JW
123
JW
127
JW128
JW129
JW130
JW6
JW43
JW82
JW
72
JW
94
JW
133
JW
118
R515
R516
JW84
JW85
JW81
JW
125
JW89
JW88
JW
54
JW62
JW
92
JW
119
JW
23
JW
44
JW57
JW
131
JW
132
JW110
D755
D756
JW
58
JW
27
C753
C479
C412
C4
C5
C51
C511
C503
C623
D752
JW59
D762
JW30
JW116
JW
61
JW112
JW77
JW78
JW137
JW
56
JW
99
JW
140
JW
126
X501
JW
141
JW60
JW
7
JW
134
JW3
F901
JW
25
JW139
JW
26
JW
42
JW109
R570
JW144
JW
145
JW
146
L601
JW39
JW111
CNP301
JW
124
JW83
JW
24
JW
98
JW113
JW106
JW107
JW
142
JW
143
C760
D753
D751
D757
D754
(Page 21)
(Page 16)
Ref. No.
Location
D1
F-3
D479
E-6
D501
I-6
D502
I-5
D580
F-11
D581
F-11
D601
D-10
D609
D-9
D651
C-9
D710
I-3
D711
I-3
D715
I-4
D716
I-3
D717
I-3
D718
I-3
D719
I-4
D720
I-3
D751
D-7
D752
D-6
D753
D-7
D754
D-6
D755
C-5
D756
C-5
D757
C-6
D758
C-6
• Semiconductor Location
D760
D-8
D762
D-9
IC51
G-3
IC401
E-4
IC501
H-6
IC602
H-8
IC750
B-6
Q1
F-3
Q22
D-2
Q51
G-3
Q52
G-3
Q431
B-4
Q441
B-4
Q451
D-4
Q461
C-4
Q478
E-6
Q479
E-5
Q580
G-11
Q581
G-11
Q582
G-11
Q631
H-10
Q651
D-8
Q664
H-9
Ref. No.
Location
19
19
CDX-S2020
CDX-S2020
3-7. SCHEMATIC DIAGRAM — MAIN SECTION (1/2) — • Refer to page 20 for Waveforms.
• Refer to page 23 for IC Block Diagrams.
Note:
• Voltage is dc with respect to ground under no-signal
(detuned) condition.
no mark : FM
(
no mark : FM
(
) : MW
<
> : CD PLAY
IC B/D
IC B/D
IC B/D
R406
R407
R408
R409
R431
R433
R441
R443
R451
R453
R461
R463
R479
R752
R432
R442
R1
R756
C406
C758
C759
C761
C412
C760
L1
R3
R2
C754
R4
R5
R10
R11
C753
JC1
JC401
C752
R405
C404
C413
C432
C452
C442
JC331
C462
C771
C770
C769
C755
C763
JC753
C751
C617
C601
C602
C756
C5
C7
D601
C405
Q441
Q431
Q451
Q461
R452
R462
C401
C407
F901
J1
C3
C1
C2
R7
R6
R59
R29
R8
R9
Q1
R60
R61
C10
C4
C6
C57
C58
C51
R54
C56
C55
C54
C53
C62
R58
X51
C59
R55
C60
C479
R651
R652
R609
Q51
R52
R51
R53
R57
R56
CN601
TU1
C12
C13
D1
Q22
Q52
IC51
C11
C431
C441
C451
C461
C764
C765
C750
IC750
D751
D752
D753
D754
D755
D756
D757
D758
D760
D762
D609
L601
D479
Q479
Q478
FB603
FB602
IC401
(Page 20)
20
20
CDX-S2020
CDX-S2020
3-8. SCHEMATIC DIAGRAM — MAIN SECTION (2/2) —
R517
R674
R583
R531
R634
R633
R523
R525
R524
R532
R503
R502
R526
R506
R584
R507
R514
R513
C631
C301
C303
C305
R527
R636
C623
JC501
R518
R547
R528
R563
R567
R501
R705
JC503
R510
R511
R530
R560
R559
R572
C511
R521
R522
R301
R302
C302
R504
R505
C343
L303
L305
L306
L301
C307
C306
L302
L307
L304
C510
C501
C514
C512
C513
C504
C509
R516
C621
R631
C502
R632
R672
R671
C515
C508
R566
C503
C517
R565
R512
R571
R515
C308
CNP301
R540
R541
R550
C516
R535
R536
X502
R564
R539
R585
R582
R706
R653
R654
IC602
JC681
CN701
R534
X501
C518
R509
R508
L563
L562
L561
R544
R549
C507
R543
D501
D502
S702
JC511
JC512
FB604
FB605
C622
Q651
D651
D581
Q631
Q581
D580
Q580
Q664
Q582
R570
D715
D719
D716
D717
D718
D720
D710
D711
R673
IC501
R557
(Page 19)
(Page 17)
(Page 22)
Note:
• Voltage is dc with respect to ground under no-signal
(detuned) condition.
no mark : FM
(
no mark : FM
(
) : MW
<
> : CD PLAY
— Main Board —
2.1Vp-p
8.664MHz
1
IC51
0
(XTO)
2
IC501
qs
(OSCOUT)
1.6Vp-p
27MHz
2.2Vp-p
32.768kHz
3
IC501
qh
(XOUT)
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