Sony MDX-C8970R (serv.man2) Service Manual ▷ View online
9
9
MDX-C8970R
2-6.
SCHEMATIC DIAGRAM – MAIN Board (5/5) –
Note on Schematic Diagram:
• Voltages and waveforms are dc with respect to ground
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
(
no mark : FM
(
) : MW
[
] : LW
〈〈
〉〉
: MD PLAY
(Page
7)
(Page 5)
10
10
MDX-C8970R
IC151
E-3
IC271
C-13
IC300
H-6
IC404
E-10
IC421
E-12
IC500
J-6
IC506
H-5
IC602
D-7
IC632
D-6
IC691
G-8
IC701
H-12
IC702
J-11
IC901
J-3
IC951
H-3
IC952
I-3
Q130
I-2
Q131
I-2
Q132
I-2
Q133
G-1
Q134
I-2
Q180
B-2
Q181
B-2
Q182
C-2
Q183
C-2
Q185
D-3
Q251
J-9
Q252
J-10
Q253
I-9
Q254
J-10
Q255
J-9
Q256
J-9
Q271
C-13
Q272
C-12
Q275
B-13
Q421
D-11
Q422
D-11
Q423
E-11
Q424
E-11
Q441
F-9
Q451
D-10
Q461
D-9
Q462
E-10
Q471
C-8
Q472
D-8
Q473
C-8
Q474
D-8
Q501
H-5
Q523
J-8
Q691
G-8
Q751
F-2
Q752
G-2
Q754
F-2
D131
J-2
D2O4
J-11
D251
K-12
D252
K-12
D253
K-12
D254
K-11
D255
K-13
D256
K-13
D257
K-12
D258
K-12
D259
K-12
D260
K-12
D261
K-13
D262
K-11
D263
K-11
D264
K-11
D265
K-11
D271
D-13
D279
B-14
D280
A-14
D282
A-14
D283
B-13
D291
B-3
D421
E-11
D422
E-12
D423
D-12
D424
D-12
D441
E-9
D442
E-9
D461
C-10
D462
C-10
D463
C-10
D464
C-9
D466
C-9
D467
D-10
D468
D-9
D471
C-8
D472
D-8
D481
B-7
D482
B-7
D483
B-6
D484
B-6
D485
B-7
D486
B-8
D487
B-8
D488
B-8
D491
B-6
D546
K-3
D601
B-5
D631
B-4
D661
A-1
D701
H-11
2-7.
PRINTED WIRING BOARD – MAIN Board (Component Side) –
Ref. No.
Location
Ref. No.
Location
• Semiconductor Location
11
11
MDX-C8970R
2-8.
PRINTED WIRING BOARD – MAIN Board (Conductor Side) –
D181
C-2
D272
B-12
D273
B-12
D274
B-12
D275
C-12
D276
B-12
D277
B-13
D278
B-13
D403
F-13
D431
D-9
D432
D-9
D477
B-13
D489
A-7
D527
I-9
D555
J-7
D702
I-12
D751
F-2
IC131
J-2
IC351
H-6
IC401
E-9
IC402
E-10
IC403
D-10
IC481
A-7
IC601
F-7
Ref. No.
Location
Ref. No.
Location
• Semiconductor Location
IC603
D-7
IC604
C-6
IC631
F-6
IC633
D-6
IC634
C-4
IC661
E-5
IC663
B-2
IC752
G-2
IC771
F-3
Q273
B-13
Q274
B-13
Q401
F-9
Q402
F-12
Q403
F-10
Q431
D-8
Q504
J-5
Q601
B-5
Q602
B-5
Q631
B-4
Q632
B-4
Q661
B-2
Q662
A-2
Q753
F-2
Q901
J-2
(Page 14)
12
12
MDX-C8970R
2-9.
PRINTED WIRING BOARD – DISPLAY Board –
• Semiconductor
Location
(Component Side)
(Component Side)
Ref. No.
Location
• Semiconductor
Location
(Conductor Side)
(Conductor Side)
IC910
C-4
LED900
C-4
LED901
B-4
LED902
A-3
LED903
A-2
LED904
C-2
LED905
C-2
LED906
B-2
LED907
B-2
LED971
A-5
LED972
B-5
LED973
C-12
LED974
C-5
LED975
A-12
LED976
B-12
D901
B-5
D902
B-4
D903
A-8
D905
B-8
D971
B-4
IC900
B-6
IC920
B-9
IC921
B-8
Q900
B-5
Q901
B-5
Q902
A-5
Q903
B-5
Q904
B-4
Q971
B-4
Q972
B-4
Ref. No.
Location
(Page 14)
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