Sony STR-DE485 / STR-DE485E (serv.man2) Service Manual ▷ View online
2
STR-DE485/DE485E
TABLE OF CONTENTS
1. Printed Wiring Boards –Main Section– ................................... 3
2. Schematic Diagram –Main Section (1/2)– .............................. 4
3. Schematic Diagram –Main Section (2/2)– .............................. 5
4. Printed Wiring Board –STK Section– ..................................... 6
5. Schematic Diagram –STK Section– ........................................ 7
6. Printed Wiring Board –Video Section– ................................... 8
7. Schematic Diagram –Video Section– ...................................... 9
8. Electrical Parts List ................................................................ 10
2. Schematic Diagram –Main Section (1/2)– .............................. 4
3. Schematic Diagram –Main Section (2/2)– .............................. 5
4. Printed Wiring Board –STK Section– ..................................... 6
5. Schematic Diagram –STK Section– ........................................ 7
6. Printed Wiring Board –Video Section– ................................... 8
7. Schematic Diagram –Video Section– ...................................... 9
8. Electrical Parts List ................................................................ 10
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
for schematic diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
f
: internal component.
•
2
: nonflammable resistor.
•
5
: fusible resistor.
•
C
: panel designation.
•
A
: B+ Line.
•
B
: B– Line.
• Voltage and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
no mark : FM
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F
: TUNER (FM/AM)
g
: VIDEO
J
: CD (ANALOG)
c
: CD (DIGITAL)
for printed wiring boards:
• X
: parts extracted from the component side.
•
f
: internal component.
•
: Pattern from the side which enables seeing.
Caution:
Pattern face side: Parts on the pattern face side seen from the
(Side B)
Pattern face side: Parts on the pattern face side seen from the
(Side B)
pattern face are indicated.
Parts face side: Parts on the parts face side seen from the
(Side A)
(Side A)
parts face are indicated.
C
B
These are omitted.
E
Q
B
These are omitted.
C
Q
Q
E
B
C
E
Note:
The components identified by
mark
The components identified by
mark
0
or dotted line with mark
0
are critical for safety.
Replace only with part number
specified.
specified.
Note:
Les composants identifiés par
une marque
Les composants identifiés par
une marque
0
sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce portant le numéro spécifié.
Ne les remplacer que par une
pièce portant le numéro spécifié.
• (
) : Refer to page of Supplement-1.
• (( )) : Refer to page of Service Manual.
STR-DE485/DE485E
3
3
1
A
B
C
D
E
F
G
H
I
2
3
4
5
6
7
8
9
10
11
12
13
14
JW793
TP701
C792
C790
CNP791
J791
IC201
JW423
JW412
R748
Q753
Q754
JW756
R648
JW757
JW826
JW734
JW751
JW623
R409
JW781
JW504
R452
JW406
JW525
JW720
TM602
R459
JW421
JW723
JW434
JW805
JW407
JW783
JW409
R503
JW456
JW526
Q503
Q603
Q604
JW610
JW405
JW754
JW704
JW755
R691
JW505
JW416
JW506
JW584
JW705
JW636
JW568
JW508
JW752
JW404
Q504
JW637
Q653
Q654
R692
JW753
JW503
JW523
Q703
Q704
JW711
JW722
JW821
JW502
JW420
JW825
JW719
JW559
JW581
JW721
JW431
C803
JW432
JW823
TM601
JW453
JW410
JW507
JW403
JW522
JW713
JW710
JW408
JW411
JW822
JW620
R474
JW524
JW712
JW558
JW622
JW569
C804
JW714
JW811
JW450
JW746
R803
JW582
R546
JW718
R758
R681
JW445
R402
Q722
Q640
IC801
R501
R725
R464
Q652
J401
R420
R425
C722
R747
L651
D722
R528
R413
C457
RY560
D903
L601
CNP502
C770
R791
R766
C621
C802
R631
R404
C482
R695
C462
C412
R517
R618
R769
R771
R772
R462
R469
C494
Q680
L751
C452
C808
D791
Q756
CNP915
R463
R442
R417
R416
Q501
R426
R405
R458
R408
R455
R427
R447
R657
R456
C471
R696
R757
R457
C810
R368
R407
C766
R623
CNP911
R621
R454
C750
D510
C733
R765
R760
D902
R761
C491
R406
R667
Q725
R435
R414
D721
D605
R755
R504
C405
R764
C407
C458
C406
R721
C801
R502
R381
C619
C510
C505
C511
R573
R614
R620
R446
Q752
R616
R622
R617
R731
Q755
C611
R615
R610
Q602
R778
R611
R624
R668
L701
R768
R613
R367
R767
C519
Q605
Q701
R444
D610
R505
R516
R671
R520
R522
R556
R521
R515
C540
Q502
IC501
Q540
R510
C504
R511
R379
R557
C404
C481
C466
R524
Q710
R540
Q506
R412
R714
C459
R513
D705
D505
C710
C498
R735
Q702
C415
R718
C414
J405
C497
R666
R669
R634
D665
R672
R698
R675
C822
C486
C670
C490
L521
Q606
R680
D540
C661
Q655
C640
Q705
Q656
C485
R665
R750
C711
C642
Q692
R660
R756
R773
D750
R661
R640
R677
C489
C493
R737
C720
R736
R663
Q651
D734
Q610
C456
R719
C483
C760
Q750
R716
D740
R722
R380
R715
C830
C740
Q505
Q751
R710
D765
R711
R723
R514
R676
R366
C610
R724
Q364
R746
Q471
R656
R533
Q740
R376
R674
Q801
C416
D732
CNP501
Q550
R664
D733
R763
C503
R694
C660
R625
IC401
RY601
D802
C488
Q379
R713
D905
Q723
C455
R499
R422
R471
R693
C691
R531
C461
C373
IC601
CNP802
Q691
C408
D560
R804
R436
R717
R525
C495
RY501
R475
R418
Q790
C903
Q706
R419
D731
C487
C464
Q560
C501
C484
C411
C721
D801
R802
C419
R445
RY701
D904
R555
R793
C717
C374
RY791
IC802
C418
R431
R411
C413
C761
D896
C454
D804
C465
C409
Q363
R424
C417
C433
R740
R473
R470
R432
D640
C402
C807
R461
C506
C496
C432
C492
C767
C507
R472
C716
R780
R910
R745
C669
C666
C516
C541
C742
C517
R655
C752
C681
R770
R732
C467
C431
C620
C901
R375
R415
JW820
CN505
JW422
JW801
JW452
JW615
R733
D691
D690
JW415
JW417
JW402
JW428
JW429
JW448
JW400
JW300
TP1
JW759
JW455
JW454
JW100
JW731
J404
J403
C811
R690
R699
R806
TP800
R673
R638
JW457
JW745
JW804
JW418
JW782
R532
JWB01
JWB03
R534
JW444
JW733
D710
JW760
JW546
JW716
JW717
R794
R792
R734
JW521
JW743
JW545
JW430
JW451
JW419
CNP801
JW439
JW401
JW426
C472
R560
C805
C806
CN792
JWH111
JWH110
JWH109
JWH108
JWH112
JWH106
JWH107
JWH105
JWH103
JWH104
JWH102
JWH101
D680
C680
J402
JW601
CNP505
CNP506
JW703
JW706
JW702
JW707
JW614
JW501
JW701
JW611
JW612
JW613
JW630
JW628
R400
C732
R775
JW578
JW739
JW740
JW741
JW742
JW514
Q601
1. PRINTED WIRING BOARDS — MAIN SECTION — • Refer to page 2 for Common Note on Printed Wiring Boards.
((Page 28))
((Page 32))
((Page 32))
((Page 32))
((Page 25))
((Page 25))
((Page 25))
(Page 6)
(Page 6)
D505
F-4
D510
C-9
D540
F-4
D560
C-7
D605
F-11
D610
C-8
D640
F-7
D665
F-7
D680
E-10
D690
D-9
D691
D-9
D705
E-5
D710
C-10
D721
E-10
D722
D-10
D731
D-10
D732
D-10
D733
D-10
• Semiconductor Location
Ref. No.
Location
Ref. No.
Location
Ref. No.
Location
Ref. No.
Location
D734
D-10
D740
F-5
D750
E-9
D765
F-9
D791
F-12
D801
E-13
D802
C-13
D804
E-11
D896
C-6
D902
D-12
D903
D-12
D904
E-12
D905
D-12
IC201
D-4
IC401
E-3
IC501
E-3
IC601
D-8
IC801
C-6
IC802
C-6
Q363
D-2
Q364
D-2
Q379
E-2
Q471
C-2
Q501
F-3
Q502
F-4
Q503
F-3
Q504
F-4
Q505
F-3
Q506
F-3
Q540
F-4
Q550
C-9
Q560
C-7
Q601
F-10
Q602
F-11
Q603
F-10
Q604
F-11
Q605
F-11
Q606
F-10
Q610
C-9
Q640
E-8
Q651
F-6
Q652
F-7
Q653
F-7
Q654
F-8
Q655
F-6
Q656
F-8
Q680
E-10
Q691
D-9
Q692
D-9
Q701
F-5
Q702
F-5
Q703
F-5
Ref. No.
Location
Q704
F-6
Q705
F-6
Q706
F-6
Q710
C-9
Q722
D-10
Q723
D-11
Q725
D-10
Q740
F-5
Q750
E-9
Q751
F-8
Q752
F-9
Q753
F-8
Q754
F-9
Q755
F-9
Q756
F-9
Q790
D-12
Q801
E-12
STR-DE485/DE485E
4
4
2. SCHEMATIC DIAGRAM — MAIN SECTION (1/2) — • Refer to page 2 for Common Note on Schematic Diagram.
JW100
R402
R409
R452
R459
C374
C471
C498
C805
C806
C807
C810
CNP915
D560
D801
D804
D896
D904
D905
Q363
Q364
R375
R376
R380
R381
R404
R405
R406
R407
R408
R411
R412
R415
R416
R422
R424
R425
R426
R427
R431
R432
R435
R436
R442
R444
R445
R446
R447
R454
R455
R456
R457
R458
R461
R462
R463
R464
R470
R473
R499
R532
R533
R802
R804
R803
R806
C472
R560
C811
C407
C457
C406
C456
C408
C458
C405
C455
C404
C454
C409
C459
C402
C452
C413
C433
C461
C462
C432
C412
C431
C411
C493
C486
C485
C495
C464
C802
C801
C822
R417
R414
R413
R418
R419
R420
R469
C483
C491
C481
J404
J401
R379
R367
R368
R366
C903
D903
D902
C901
C830
R472
R471
R475
C488
C487
C489
C490
C497
C467
C466
R474
JW400
JW300
Q801
Q560
Q471
Q379
C465
CNP501
CN505
J405
J402
J403
IC401
IC801
IC802
CNP802
CNP801
R910
CNP502
CNP911
C496
C414
C415
C418
C417
C416
IC201
RY560
C373
D802
C419
C492
C482
C494
C484
R400
C808
C803
C804
The components identified by
mark
mark
0
or dotted line with mark
0
are critical for safety.
Replace only with part number
specified.
specified.
Les composants identifiés par
une marque
une marque
0
sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce portant le numéro spécifié.
Ne les remplacer que par une
pièce portant le numéro spécifié.
(Page 5)
((Page 26))
((Page 27))
((Page 27))
((Page 29))
((Page 33))
((Page 33))
((Page 33))
(Page 5)
STR-DE485/DE485E
5
5
3. SCHEMATIC DIAGRAM — MAIN SECTION (2/2) — • Refer to page 2 for Common Note on Schematic Diagram.
C506
R521
C505
C501
C503
C519
C540
C541
C619
C640
C642
C670
C680
C681
C691
C721
C722
C732
C733
C740
C742
C750
C752
C770
D505
D510
D540
D605
D610
D640
D665
D680
D705
D710
D721
D731
D732
D733
D734
D740
D765
D791
IC501
L521
L601
L651
L701
L751
Q601
Q605
Q606
Q651
Q655
Q691
Q692
Q701
Q706
Q722
Q725
Q755
Q756
R501
R504
R505
R514
R515
R520
R524
R528
R531
R534
R555
R556
R557
R614
R615
R618
R620
R621
R623
R624
R631
R634
R655
R657
R664
R665
R668
R669
R671
R674
R675
R677
R714
R715
R718
R724
R731
R734
R735
R736
R737
R747
R755
R757
R764
R765
R768
R769
R770
R771
R778
R780
R791
R793
R792
R794
R525
R775
R625
R699
R698
D690
R693
R695
R690
Q703
Q653
Q603
Q753
Q503
Q504
Q754
Q604
Q654
Q704
R740
R748
R640
R648
R680
R681
R750
R758
R540
R546
R732
R733
C507
R502
R710
R711
R713
Q702
C710
C660
Q652
R663
R660
R661
R672
Q656
R638
R611
R610
Q602
C610
R763
Q752
C760
R511
R510
Q501
Q502
C510
R513
Q505
Q506
R522
C511
R517
R573
R767
R772
R761
R760
R622
R617
C611
C661
R667
R725
R717
R723
C711
R721
R722
Q705
C720
R719
R745
R746
R676
R656
R756
D722
Q723
R613
Q751
C761
C790
R503
C504
R696
R694
C516
C517
C766
D750
C767
C620
C621
C666
C669
C716
C717
CN792
C792
R716
Q790
Q710
Q610
Q550
IC601
R773
RY501
RY601
RY701
RY791
TM601
TM602
CNP791
J791
R673
D691
R666
R616
R766
R516
Q740
Q640
Q680
Q750
Q540
CNP505
CNP506
R691
R692
(Page 4)
(Page 4)
(Page 7)
(Page 7)
