Sony CDX-GT373A Service Manual ▷ View online
CDX-GT373A
CDX-GT373A
21
21
IC B/D
R10
R3
C486
C485
C441
Q3
R155
JC9
R485
Q470
R2
C5
C2
R462
R472
R448
R447
R449
R450
C363
C364
R12
R13
Q460
CN370
JC100
JC102
C153
R420
R440
R460
R460
R421
R452
L1
R451
R153
R154
R430
R470
R481
JC214
JC151
JC109
JC110
JC112
JC420
JC421
JC422
JC423
Q420
Q432
Q440
Q452
R303
C151
C152
C310
R443
C442
C463
C462
C473
C472
C484
C494
C360
C493
C452
C432
C440
C362
C361
C7
C6
C154
C157
C155
C8
C3
C15
C443
C445
C426 C423 R424
R461
C461
C471
R471
C421
R442
C451
C431
R431
JC424
R5
R9
JC5
R4
L4
R558
R151
R152
L151
J652
J1
TU1
IC401
D113
D112
D110
D109
D108
D105
D104
D10
6
D15
3
D151
D152
D2
R7
R6
6-5. SCHEMATIC DIAGRAM – MAIN Section (2/3) –
• See page 26 for IC Block Diagrams.
(Page 20)
(Page 22)
(Page 24)
CDX-GT373A
CDX-GT373A
22
22
IC B/D
IC B/D
R502
R503
R517
R532
R533
R544
R561
R563
R570
R636
R351
R557
R504
R529
C403
C409
JC18
L401
L402
L403
L405
Q664
R401
R402
C405
L501
R534
R524
R525
JC512
CN350
R510
R511
R520
X502
R509
D353
D609
JC15
JC34
JC35
JC35
JC200
JC502
JC505
JC506
JC508
JC510
JC515
JC602
Q200
Q201
Q202
R204
C210
C215
JC511
C212
R215
R260
R262
R615
R507
R537
R549
R550
R556
R560
R571
R574
R205
R206
R207
R250
R251
R915
R916
R261
C214
JC262
JC353
JC606
R292
Q251
Q250
JC40
JC270
R271
R272
R211
R213
R214
R218
R263
R264
R217
R673
C417
C415
C412
C402
C200
C216
C213
C290
C263
C211
C508
C507
C519
C509
C504
C515
C516
C512
C502
C514
C514
C501
R671
R523
JC509
R567
R565
JC503
JC504
JC504
R522
R521
C513
JC507
R505
JC516
C510
R566
JC501
JC251
JC17
R519
R674
R672
JC36
R554
R568
JC514
JC24
R917
R540
R526
C419
C418
C418
R555
L409
L410
C401
IC270
R208
R219
R212
C201
C203
R210
R216
IC200
CN200
MIC901
X501
L407
L406
TH270
R203
R200
R201
R202
D200
IC201
R265
IC501
D503
D502
JC513
R512
LED250
LED251
R290
6-6. SCHEMATIC DIAGRAM – MAIN Section (3/3) –
• See page 18 for waveforms. • See page 26 for IC Block Diagrams. • See page 27 for IC Pin Function Description of IC501.
(Page 20)
(Page 21)
Refer to the MIC SENSITIVITY ADJUSTMENT described on page 16 if
the microphone (MIC901) or any semi-fi xed resistor (R290) is faulty.
the microphone (MIC901) or any semi-fi xed resistor (R290) is faulty.
CDX-GT373A
CDX-GT373A
23
23
1
A
B
C
D
E
F
G
H
I
2
3
4
5
6
7
8
9
10
11
12
13
14
A
MAIN BOARD CN370
1
3
4
5
2
1
RE901
PUSH SELECT
(VOLUME)
LED861,941,
S901
LCD901
LIQUID CRYSTAL DISPLAY PANEL
EQ3
DSPL/SCRL
LSW910
LSW909
LED931
(LCD BACK LIGHT)
IC971
1-875-958- (11)
11
1
2
4
3
OFF
LSW901
SOURCE
S903
LSW902
SEEK–
SEEK+
LED871–874,951–954
(RING ILLUMINATION)
4/SHUF
6/PAUSE
LSW908
5
LSW907
LSW906
2/ALBUM+
LSW904
3/REP
LSW905
1/ALBUM–
LSW903
1-875-958- (11)
11
;
LED862,942,
S902
S904
MODE
J901
AUX
37
LED862
S902
R902
S903
S901
LED942
R905
IC971
LED861
LSW902
LSW901
S904
LED941
LSW904
LSW905
LSW906
LSW907
LSW908
LSW909
LSW910
LSW903
LED871
LED
873
LED874
LED951
LED953
LED954
R904
R901
C862
C861
LED931
C971
R975
D994
LED872
LED952
FB903
FB901
R941
R861
R862
R942
FB902
R974
D993
R933
R931
R932
D991
D903
D992
D901
CN901
Q932
R981
R934
R982
D981
R987
R979
R910
R911
R871
R872
R951
R952
R950
R868
R912
R913
R870
D998
D997
R978
R977
R977
C986
D982
R985
R984
R988
C984
C981
C983
C987
R986
IC901
R908
R909
R869
R949
R948
R867
R947
C992
Q991
Q992
R907
R945
R946
R865
R866
R906
R922
R921
R961
R962
R962
R963
R881
R882
R964
R883
R884
R944 R943
R863 R864
R903
D902
C993
C901
C991
FB991
FB992
C988
FB904
C995
J901
RE901
6-7. PRINTED WIRING BOARD – KEY Section –
•
: Uses unleaded solder.
(Page 19)
Ref. No. Location
• Semiconductor Location
D901
G-11
D902
G-12
D903
G-11
D981
H-10
D982
H-10
D991
G-11
D992
G-11
D993
G-11
Ref. No. Location
D994
D994
C-14
D997
G-10
D998
G-10
IC901
G-7
IC971
D-14
LED861 A-14
LED862 A-2
LED871 B-5
LED872 C-4
LED873 B-3
LED874 C-4
LED931 C-13
LED941 A-14
LED942 A-1
LED941 A-14
LED942 A-1
Ref. No. Location
LED951 B-4
LED952 C-5
LED953 B-3
LED954 C-3
Q932
G-10
Q991
G-5
Q992
G-5
Ref. No. Location
CDX-GT373A
CDX-GT373A
24
24
R901
R902
R903
R904
R905
R906
R907
R908
R910
R909
R911
R912
R913
R986
R981
R982
CN901
R985
R984
R932
R934
R933
R931
R947
R948
R868
R867
R952
R872
R963
R964
R882
R881
R943
R863
R864
R944
R949
R869
R870
R950
R871
R951
R866
R946
R865
R945
R975
R974
R941
R942
R861
R862
IC971
R961
R962
R883
R884
R977
R979
R978
R98
8
C901
R921
R922
S904
LSW902(1/2)
LSW901(1/2)
S903
S902
S901
C861
C862
LSW903(1/2)
LSW904(1/2)
LSW905(1/2)
LSW906(1/2)
LSW907(1/2)
LSW908(1/2)
LSW909(1/2)
LSW910(1/2)
C971
C987
C984
C988
C981
C986
C995
C991
C992
R987
C983
FB901
FB902
FB903
FB902
FB903
C993
LSW910(2/2)
LSW909(2/2)
LSW907(2/2)
LSW908(2/2)
LSW905(2/2)
LSW906(2/2)
LSW904(2/2)
LSW903(2/2)
LSW901(2/2)
LSW902(2/2)
Q932
Q992
Q991
LCD901
IC901
J901
FB904
D903
D90
1
D90
2
D991
D992
D993
D994
RE901
D998
D997
D997
FB992
FB991
LED941
LED861
LED931
LED942
LED862
LED951
LED953
LED952
LED954
LED871
LED873
LED872
LED874
D981
D982
6-8. SCHEMATIC DIAGRAM – KEY Section –
(Page 21)
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