Sony CDX-GT250 / CXS-G2516F Service Manual ▷ View online
21
21
CDX-GT250
CDX-GT250
3-9. SCHEMATIC DIAGRAM — MAIN SECTION (1/3) — • Refer to page 26 for IC Block Diagrams.
IC B/D
C479
C401
L1
C407
JC1
R910
R904
R903
R907
JW169
R911
R914
R912
R913
C903
C412
R405
R406
R407
R408
R408
R409
R431
R451
R441
R461
C5
R1
R410
R411
C471
C481
R471
R481
R4
R401
C13
C405 C404
C411
C413
C410
C484
C474
C465
C462
C445
C442
C455
C452
C435
C432
C905
C406
Q451
Q441
Q431
Q461
Q481
Q471
C431
C451
C441
C461
Q479
Q478
D479
IC901
R906
R905
C902
C901
R5
C7
C12
C4
J1
C6
Q1
J330
IC401
TU1
D1
D903
R2
R3
R12
R13
FB1
FB411
FB410
R432
R452
R442
R462
R482
R472
(Page 22)
(Page 23)
22
22
CDX-GT250
CDX-GT250
3-10. SCHEMATIC DIAGRAM — MAIN SECTION (2/3) — • Refer to page 27 for IC Block Diagrams.
IC B/D
R633
R632
R634
R609
JC681
JC756
JC795
JW111
R479
C631
D751
D752
C753
D761
D762
R752
C754
C775
C765
C751
C750
JC754
JC755
JC753
C755
C756
C771
C763
C769
C770
C764
C774
C602
C601
C618
C617
D601
D753
D754
D755
D756
D757
D758
D760
D759
C623
C622
C776
C758
R631
Q631
FU601
IC750
CN601
L601
D617
D609
(Page 23)
(Page 21)
23
23
CDX-GT250
CDX-GT250
• Refer to page 16 for Waveforms.
3-11. SCHEMATIC DIAGRAM — MAIN SECTION (3/3) — • Refer to page 30 for IC Pin Descriptions.
R636
R673
R512
C301
R583
R674
R582
R535
R536
R570
FB303
FB302
FB307
S502
D510
R513
R534
R557
R532
R528
D511
R505
R504
R563
R544
R568
R522
R521
JW145
JW146
JW127
R565
JC527
JW28
JC533
JW148
JW120
R578
JW48
JW49
JW45
JW149
CN701
R661
R662
R663
R664
JW141
JW99
R691
JW140
R585
R584
R301
R302
FB605
R509
R508
R503
R502
R533
C503
C511
R531
R517
R558
R518
R519
D503
R566
R539
R543
FB606
R675
R676
R677
R681
R601
R692
C343
FB305
C306
FB308
L301
FB304
C308
C310
C309
C510
C507
C508
C504
C509
C514
C501
C918
R541
R540
C519
FB603
R679
R567
R561
C502
JC504
R671
C512
R510
R756
R757
R577
R575
L501
R556
S702
C302
C917
R901
R902
FB309
CNP301
IC602
C513
Q580
Q581
Q582
X501
Q664
R672
R529
D512
D719
X502
D502
JC501
D580
D581
R546
R545
C312
C305
FB501
R511
R514
R547
R542
FB604
C516
IC501
R537
R507
R506
R550
D704
FB310
(Page 19)
(Page 21)
(Page 22)
(Page 25)
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24
CDX-GT250
CDX-GT250
3-12. PRINTED WIRING BOARDS — KEY SECTION — • Refer to page 15 for Circuit Boards Location.
: 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
1-868-118-
(12)
12
1-868-118- (12)
12
1-868-119-
(12)
12
1-868-119-
(12)
12
LED941-944
(RING ILLUMINATION)
LED932
LSW908
EQ3
LSW911
BTM
SEEK+
M >
LSW909
(LCD BACK LIGHT)
LSW902
LSW906
GP/ALBM
+
GP/ALBM
–
SEEK–
LSW910
OFF
1
2
5
SENS
LSW904
PUSH SELECT
(VOLUME)
RE901
LSW913
LSW914
LSW917
LSW916
LSW919
AUX
J901
MODE
LSW912
SOURCE
LSW903
6/PAUSE
LSW918
3/REP
4/SHUF
LSW915
IC971
1
52
1
2
4
3
LSW901
LSW907
z/
SCRL
LSW920
DSPL/DIM
DSPL/DIM
LCD901
LIQUID CRYSTAL DISPLAY PANEL
B
MAIN BOARD
CN701
LSW901
LSW902
LSW903
LSW904
LSW906
LSW907
LSW908
LSW909
LSW910
LSW911
LSW912
LSW913
LSW914
LSW915
LSW916
LSW917
LSW918
LSW919
LSW920
LED932
R910
R917
R941
R942
R957
R958
R961
R962
R963
R964
R902
R972
R903
R909
R960
R959
R916
R953
R954
IC971
R918
R952
LED951
LED951
(DISC SLOT)
LED943
LED941
LED944
LED942
IC901
Q931
D901
RED
R
R
G
L
G
L
BLK
WHT
RED
BLK
WHT
D903
R904
R908
R974
R976
R977
R978
R979
R984
R985
R986
R987
D982
R931
R932
R934
R981
R982
R905
R
944
R945
R946
R947
R949
R948
R951
R950
R956
R955
R914
R915
R913
R912
R911
R907
R933
C985
C986
C983
C984
C981
C971
D981
Q932
R906
R901
C921
C922
FMB3
FMB4
FB903
FB901
FB902
R922
R921
CN901
R991
RE901
1
3
2
4
5
(Page 20)
Ref. No.
Location
• Semiconductor
Location
D901
H-10
D903
H-10
D981
I-10
D982
I-10
IC901
I-8
IC971
C-12
LED932
B-5
LED941
C-2
LED942
C-3
LED943
B-3
LED944
C-4
LED951
B-7
Q931
H-5
Q932
H-5
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