Sony CDX-L440B Service Manual ▷ View online
21
21
CDX-L440B
1
A
B
C
D
E
F
G
H
I
J
2
3
4
5
6
7
8
9
10
11
12
13
14
Q911
R616
C809
R933
R107
C218
C613
C624
C113
R840
R621
C622
C612
C619
Q919
C604
R608
R209
R610
C615
C611
C609
R210
C841
C119
C633
R607
C627
R605
Q604
C426
R606
C116
C603
R807
R115
R908
C846
C617
C614
C117
Q101
C208
R628
Q903
Q905
C108
Q904
C650
R613
C902
R708
C110
C626
Q912
C101
C216
C806
R709
C215
Q102
R213
C217
C201
R814
Q902
C909
C210
C623
IC902
Q920
R815
CP601
C907
R818
C707
C810
JR901
C213
L603
R907
R407
Q202
Q201
R113
R108
R109
R208
Q402
Q921
C651
R622
Q606
R110
IC401
R920
Q918
Q916
R623
Q917
R817
R704
C916
R615
Q401
R619
C211
C102
R910
C803
R408
C608
JR611
JR613
Q910
Q909
R618
R716
R604
R706
JR1
C618
Q929
R612
R923
C844
C905
R809
C202
R802
R215
R609
C848
R921
D920
R207
C625
JR929
IC601
C802
C111
Q906
R813
R714
R620
C804
R909
R611
C118
R911
R705
R617
R808
R922
C115
C706
R602
Q914
Q915
R444
R410
R824
R710
R711
D921
R841
R842
C842
C843
C845
C847
IC801
D446
D445
D810
R918
R901
F901
JR101
C652
C205
C105
C666
C849
R614
L605
R843
JR610
JR620
JW602
D667
JW34
R934
JW80
SW801
JW29
CNJ601
JW2
Q603
C620
Q913
X801
D901
C214
CNP701
R906
C914
C915
L901
JW1
JW63
JW43
L702
TH901
JW60
JW57
D918
JW79
L604
C610
JW50
JW75
R919
R926
R925
JW54
R930
R601
JW58
Q907
JW37
R912
JW27
Q605
R929
R928
JW11
JW84
JW55
JW3
JW38
C114
JW93
C203
C103
D913
C904
D903
R927
JW31
D906
C219
JW5
D923
JW24
R913
JW15
JW20
R401
JW14
CNP501
JW44
C432
JW45
D908
JW35
JW36
JW48
L601
IC101
D401
JW49
C204
C104
R810
JW39
R206
R917
JW16
JW67
C605
CNP802
D916
R811
R822
JW41
JW83
JW95
D904
D915
C435
R806
JW22
JW56
D402
R931
JW82
JW66
C801
D914
R106
C621
R205
C407
X601
C401
D919
R603
C606
D917
X802
JW19
D907
D604
D999
R105
JW47
JW59
JW13
D922
JW40
D930
JW62
L703
C704
L701
C701
C702
C703
JW28
TU601
JW74
R812
JW73
JW65
JW88
JW87
JW86
JW85
JW89
JW90
JW91
JW92
D444
D909
D910
JW61
JW30
R404
JW46
R924
JW23
C919
JW42
JW97
JW126
R932
JW25
JW18
JW98
JW99
JW8
JW26
JW71
JW94
JW7
R707
JW105
JW107
JW9
JW10
C901
C631
JW68
JW6
JW96
JW12
JW21
JW106
JW108
JW81
PJ401
L669
JW110
JW109
JW111
3-8. PRINTED WIRING BOARDS — MAIN SECTION — • Refer to page 17 for Circuit Boards Location.
(Page 24)
D401
D-5
D402
D-6
D444
D-6
D445
D-6
D446
D-6
D604
E-2
D667
F-3
D810
I-4
D901
C-9
D903
D-9
D904
C-9
D906
D-9
D907
D-9
D908
D-9
D909
F-10
D910
E-7
D913
G-10
D914
I-8
D915
C-8
D916
C-6
D917
C-8
D918
C-6
D919
C-8
D920
B-7
D921
B-7
D922
C-8
D923
F-8
D930
H-9
D999
G-10
IC101
B-6
IC401
D-4
IC601
F-3
IC801
H-6
IC902
I-9
Q101
C-3
Q102
C-3
Q201
C-4
Q202
C-4
Q401
D-6
Q402
E-6
Q603
H-2
Q604
H-4
Q605
H-2
Q606
H-4
Q902
E-8
Q903
E-9
Q904
E-9
Q905
G-8
Q906
G-9
Q907
C-10
Q909
E-9
Q910
E-8
Q911
G-8
Q912
G-9
Q913
G-9
Q914
H-8
Q915
H-9
Q916
H-8
Q917
E-10
Q918
F-8
Q919
F-8
Q920
G-9
Q921
F-9
Q929
F-8
Ref. No.
Location
• Semiconductor Location
Ref. No.
Location
(Page 19)
22
22
CDX-L440B
IC B/D
IC B/D
C604
C605
C608
C627
R605
R601
R603
R602
C606
C603
C609
C610
L603
C612
C613
C613
R607
C615
R609
C621
R616
R617
R618
X601
C623
C622
C611
R606
C204
R210
R208
R110
C104
R108
R107
R109
C103
C105
C205
R105
R206
R106
C432
R612
R613
R619
C631
C626
C624
L604
C118
C218
C217
C216
C213
C211
R215
R213
C208
C435
C101
C102
C202
C201
R401
C426
R407
C110
R113
C116
C117
C111
C113
C113
C119
R716
R714
R906
D903
D904
C902
R901
D901
L901
C108
R604
CNJ601
R205
CNP501
C633
R209
R207
JR101
C407
Q603
Q605
C625
R610
C617
R608
D401
C214
C114
C901
D444
R444
R410
D402
Q101
Q102
Q201
Q202
C203
R404
R115
L601
JW13
C620
R615
R408
IC101
C401
C210
L605
C666
CP601
R614
D604
R611
Q401
Q402
D445
D446
IC401
C219
IC601
Q604
Q606
TU601
JR610
C650
C651
R621
R623
PJ401
L669
JR620
R620
R622
R628
C848
C652
JR613
JR611
C841
C842
C619
C618
C614
D667
JR615
C215
C706
C707
C115
D919
D918
D917
D916
D915
D922
D921
D920
D920
3-9. SCHEMATIC DIAGRAM — MAIN SECTION (1/2) — • Refer to page 26 for IC Block Diagrams.
(Page 23)
Note:
• Voltage is dc with respect to ground under no-signal
(detuned) condition.
no mark : FM
(
no mark : FM
(
) : AM
<
> : CD PLAY
23
23
CDX-L440B
3-10. SCHEMATIC DIAGRAM — MAIN SECTION (2/2) — • Refer to page 17 for Waveforms.
Note:
• Voltage and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
(
no mark : FM
(
) : AM
<
> : CD PLAY
R908
R907
C904
TH901
R933
Q919
R934
R932
D923
C919
R930
D909
R931
Q920
D930
Q910
Q913
R912
JR929
R913
C905
C907
D910
D908
R917
D913
R920
C916
R919
R918
Q915
R928
R925
R926
R927
R929
R924
R911
R910
D906
L703
L702
R921
R806
R807
R808
X802
C802
C801
CNP701
R802
R815
R814
R813
R814
R813
R812
R811
R810
R811
R810
R824
R922
R923
R923
C809
SW801
CNP802
R817
R818
R822
JR1
R711
R709
R710
R707
R708
R706
R705
R704
R840
R841
R842
R842
C843
C845
D914
D907
D999
IC902
C915
C844
R909
R809
C914
Q907
C849
C806
X801
C804
C803
JR901
R843
C909
L701
C847
Q916
D810
Q909
Q912
Q905
Q906
Q921
Q914
Q929
Q918
Q911
Q917
Q902
Q903
C701
C702
C703
C704
Q904
IC801
C810
C846
(Page
20)
20)
(Page 22)
(Page 25)
24
24
CDX-L440B
1
A
B
C
D
E
F
G
H
2
3
4
5
6
7
8
9
10
11
12
13
14
R568
D574
R579
R567
D573
D569
D568
D570
D561
D567
D563
D572
R560
R559
LED501
LED502
D562
R570
R566
R569
R580
D564
D566
D565
R565
R578
R564
R577
R563
D571
R582
D581
R576
R583
D579
R561
R574
D575
R573
R562
D580
R572
R571
R581
D577
D578
R575
D576
LED503
LED504
C555
D552
R509
R503
R518
JR503
R551
R517
R514
JR501
C552
JR505
R552
C553
R508
R511
R513
R516
D554
R506
D553
C551
R507
R502
R515
R505
R504
R586
R510
IC551
R501
R519
D551
JR504
R553
R587
R588
R512
S517
S510
S516
S519
CNP551
S520
S518
S501
S509
S515
LCD501
S512
S511
S513
S514
S506
S504
S505
S507
S502
S503
S508
S521
S581
3-11. PRINTED WIRING BOARD — DISPLAY SECTION — • Refer to page 17 for Circuit Boards Location.
(Page 21)
D551
F-5
D552
F-4
D553
G-4
D554
G-5
D561
B-1
D562
C-1
D563
D-1
D564
B-3
Ref. No.
Location
• Semiconductor Location
Ref. No.
Location
D565
C-3
D566
C-3
D567
A-6
D568
A-5
D569
A-3
D570
A-2
D571
A-10
D572
A-9
Ref. No.
Location
D573
A-8
D574
A-7
D575
B-12
D576
C-12
D577
C-12
D578
A-11
D579
A-12
D580
B-14
D581
C-14
IC551
G-7
LED501
B-4
LED502
C-4
LED503
C-11
LED504
B-11
Ref. No.
Location
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