Sony STR-DE685 Service Manual ▷ View online
STR-DE685
21
21
4-6. BLOCK DIAGRAM — POWER SECTION —
8
12
11
DRIVE
POWER AMP
Q701-704
CURRENT
DETECT
Q705,706
RY851
RY701
RY601
PRE DRIVER
IC701
IN 2
+VOUT2
-VOUT2
SPEAKERS
IMPEDANCE
USE 8-16Ω
R
L
FRONT A
L
SURROUND
CENTER
R
R-CH
R-CH
R-CH
FL-CH
FR-CH
SL-CH
C-CH
R-CH
SR-CH
R-CH
TUNER/
AUDIO
SECTION
4
RY901
D804
F1
F2
-30V
+3.3V
(STBY)
+2.5V
+5V-1
-7V
+7V
TU+10V
TU+3.3V
-30V
F901
RECT
D910-913
T902
POWER
TRANSFORMER
D914
Q921
D915
D731
D734
D733
~
AC IN
OVERLOAD
DETECT
D740,Q740
1
67
6
5
DRIVE
POWER AMP
Q501-504
CURRENT
DETECT
Q505,506
-30V REG
Q801
RELAY
DRIVER
Q901
PRE DRIVER
IC501
IN+
+VOUT
-VOUT
OVERLOAD
DETECT
D540,Q540
DOUBLER
COMMUTATION
8
12
11
DRIVE
POWER AMP
Q651-654
CURRENT
DETECT
Q655,656
PRE DRIVER
IC702
IN 2
+VOUT2
-VOUT2
OVERLOAD
DETECT
D640,Q640
RELAY
DRIVER
Q851
RY791
RELAY
DRIVER
Q790
RELAY
DRIVER
Q710
RELAY
DRIVER
Q610
RY501
RELAY
DRIVER
Q550
70
72
68
PROTECTOR
D721,722
Q722,723,725
17
66
48
71
OVERLOAD
DETECT AMP
7
2
IC601
Q692
Q691
+B
-B
-BB
+3.3V
REG
1
3
IC1905
BACK-UP
SWITCH
4
5
+3.3V
2
IC1901
+5V-2
+5V
REG
1
3
IC1503
+10V
REG
1
3
IC1902
-V
+V
+7V
REG
1
3
IC801
-7V
REG
2
3
IC802
+5V
REG
1
3
IC1903
+3.3V
REG
1
3
IC1904
R-CH
R-CH
R-CH
-BB +B
-B
+B
-B
+B
-B
+B
-BB +B
-BB +B
R-CH
R-CH
R-CH
RECT
D802
D802
RECT
D820-822
RECT
D902-905
T901
POWER
TRANSFORMER
D898,899
TM601
TM602
R
FRONT B
L
R-CH
TM603
J791
PHONES
S901
VOLTAGE
SELECTOR
220V
240V
120V
SPK B-RY
HP-RY
FRONT-RY
REAR-RY
CENTER-RY
HP DETECT
HP-RY
SPK B-RY
FRONT-RY
REAR-RY
CENTER-RY
HEADPHONE
RELAY
PREOUT/FRONT
RELAY
REAR RELAY
PROTECTOR
SPK B RELAY
POWER RELAY
STOP
CENTER RELAY
25
HP DETECT
HP DETECT
E,JE M0DEL
AEP,UK M0DEL
EXCEPT
E,JE
M0DEL
E,JE
M0DEL
EXCEPT
E,JE
M0DEL
E,JE
M0DEL
E,JE,MX,TW M0DEL
EXCEPT CH,AR,KR M0DEL
US,CND,AEP,UK,
AUS,SP,MY MODEL
AUS,SP,MY MODEL
SYSTEM
CONTROL
IC1601 (4/4)
PRE
DRIVE
PRE
DRIVE
PRE
DRIVE
-1
-2
-3
JW902
F902
J911
AC
OUTLET
JW905
• Signal path
: TUNER (FM/AM)
• R-ch is omitted due to
same as L-ch.
same as L-ch.
• Abbreviation
CND: Canadian model
AUS: Australian model
JE : Tourist model
CH : Chinese model
MX : Mexican model
SP : Singapore model
MY : Malasia model
TW : Taiwan model
AR : Argentina model
KR : Korean model
CND: Canadian model
AUS: Australian model
JE : Tourist model
CH : Chinese model
MX : Mexican model
SP : Singapore model
MY : Malasia model
TW : Taiwan model
AR : Argentina model
KR : Korean model
(Page 17)
STR-DE685
22
22
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)
L
: VIDEO (AUDIO)
I
: VIDEO
J
: CD (ANALOG)
c
: CD (DIGITAL)
• Abbreviation
CND : Canadian model.
AUS
AUS
: Australian model.
JE
: Tourist model.
CH
: Chinese model.
MX
: Mexican model.
SP
: Singapore model.
MY
: Malaysia model.
TW
: Taiwan model.
AR
: Argentine model.
KR
: Korean model.
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)
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.
4-7. CIRCUIT BOARDS LOCATION
MAIN board
STANDBY board
AC SELECT board
(E, Tourist model only)
(E, Tourist model only)
VIDEO board
COMPONENT VIDEO board
(Except AEP, UK model)
(Except AEP, UK model)
S-VIDEO board
SPEAKER (B) board
DIGITAL board
POWER SW board
HEADPHONE board
VIDEO3 board
DISPLAY board
JOG board
• Waveforms (DIGITAL Board)
3.4Vp-p
1
IC1101
qd
(CKOUT)
1V/DIV 50nsec/DIV
12.288MHz
3.4Vp-p
2
IC1101
qf
(BCK)
1V/DIV 0.2µsec/DIV
3.07MHz
3.6Vp-p
3
IC1101
wa
(XOUT)
1V/DIV 50nsec/DIV
12.288MHz
5Vp-p
4
IC1501
el
(MCLKI)
1V/DIV 50nsec/DIV
12.288MHz
3.6Vp-p
5
IC1201
qs
(MCLK2)
1V/DIV 50nsec/DIV
13.5MHz
4Vp-p
6
IC1201
qf
(SCKOUT)
1V/DIV 50nsec/DIV
12.288MHz
3Vp-p
7
IC1601
id
(X1)
1V/DIV 50nsec/DIV
20MHz
• Abbreviation
CND : Canadian model.
AUS
AUS
: Australian model.
JE
: Tourist model.
CH
: Chinese model.
MX
: Mexican model.
SP
: Singapore model.
MY
: Malaysia model.
TW
: Taiwan model.
AR
: Argentine model.
KR
: Korean model.
STR-DE685
23
23
4-8. PRINTED WIRING BOARDS — MAIN SECTION — • Refer to page 22 for Circuit Boards Location and Common Note on Printed Wiring Boards.
1
A
B
C
D
E
F
G
H
2
3
4
5
6
7
8
9
10
11
12
13
14
IC201
JW423
CC20
JW628
JW412
J402
R748
Q753
JW613
Q754
JW756
JW739
JW742
JW612
R648
JW757
JW826
JW
734
JW751
JW623
R409
JW
781
JW504
R452
JW406
JW701
JW
525
JW720
TM602
R459
CC02
CC57
CC07
JW421
JW723
JW434
JW805
RR11
CC14
JW407
JW783
JW409
R503
JW456
JW526
Q503
Q603
Q604
JW
610
JW405
JW702
JW754
JW704
JW755
CC05
R691
JW505
JW416
JW506
JW584
JW705
JW636
TP900
JW501
JW437
JW706
JW568
JW508
JW
752
JW404
Q504
JW637
Q653
Q654
RR15
JW601
R692
JW753
JW503
JW735
JW523
Q703
Q704
JW711
JW
722
JW821
JW502
CC04
JW420
JW825
CC12
JW719
JW
559
CC18
JW581
JW
721
JW431
C803
JW432
JW823
TM601
JW453
CC17
JW410
JW507
JW403
JW522
JW713
JW710
JW408
JW411
RR14
JW822
JW620
R474
RR12
JW524
JW
712
JW558
JW578
JW
622
R753
JW
569
C804
R703
R653
JW611
R603
JW707
JW714
JW811
JW450
JW746
R803
JW582
R546
JW718
R681
JW445
R402
Q722
Q640
IC801
R501
R725
R464
Q652
J401
R420
R425
C722
R747
C375
L651
D680
D722
R528
R413
C457
RY560
D903
L601
CNP502
C770
R791
R766
R360
C621
C802
R631
R742
R404
C482
R695
C462
C412
R517
R618
Q747
R769
R771
R772
R462
R469
C494
Q680
L751
C452
C808
D791
Q756
CNP915
R463
R442
R775
R417
R416
Q501
R426
C703
R405
R458
R408
R743
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
C617
D605
R755
R504
C405
R764
C407
C458
C406
R721
R502
R381
C619
C510
C505
C511
R573
R614
R620
R446
Q752
R616
R622
R617
C603
R731
Q755
C680
C611
R615
R610
Q602
R778
R611
R624
R668
L701
C701
R768
R613
R367
R767
R701
Q605
Q701
R444
D610
R505
R516
R704
R671
R520
R522
R556
R521
R515
C540
Q502
IC501
Q540
R510
C504
R511
R379
R557
C404
Q748
C481
C466
R524
Q710
R744
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
C376
Q656
C485
R665
R750
C711
C642
Q692
R660
R756
R773
D750
R661
R640
R677
Q601
C489
C493
R737
C720
R736
R663
Q651
D734
Q610
C456
C616
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
R370
R372
Q801
C416
D732
CNP501
Q550
R664
C751
C371
D733
Q366
R601
R763
C503
R694
C660
R625
IC401
RY601
D802
C488
Q379
R713
D905
R369
Q723
C651
C455
R499
R422
R363
R471
R693
C691
R531
C461
C373
IC601
CNP802
Q691
C408
D560
R371
R804
R436
C705
R717
R525
C495
RY501
Q362
R475
R418
Q790
C903
Q706
R419
D731
C487
C464
Q560
C501
C484
C411
C721
D801
R802
C419
R445
RY701
C372
D904
R555
R793
C717
C374
IC802
C418
R431
R411
C413
C761
D896
C657
C454
D804
C465
C409
Q363
C707
R424
C417
C433
R740
R652
R702
R651
R654
C656
C704
C654
C706
R751
R602
C655
C607
C653
C753
C754
IC701
C757
R752
R754
R604
C606
C732
C604
R473
R470
R432
C605
C741
C601
C755
IC702
D640
C402
C807
R461
C506
C496
Q361
C432
C492
C767
C507
Q365
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
JW614
JW630
D691
D690
JW415
JW417
JW402
JW428
JW429
JW448
TP1
TP2
JW759
JW455
JW454
JW100
JW731
J404
J403
C811
R690
R699
R806
TP800
JW424
JW741
R673
R638
JW626
JW457
JW736
R377
R373
R378
R374
R361
R362
JW745
JW804
JW418
JW782
R532
JWB01
JWB03
R534
JW444
JW733
D710
JW760
JW546
JW716
JW717
R794
R792
R734
RR13
JW521
JW743
JW545
JW430
JW451
JW419
CNP801
JW439
JW401
JW426
C472
R560
C805
C806
CN792
JW703
CC16
C756
JWH111
JW
H110
JWH109
JW
H108
JWH112
JWH106
JWH107
JW
H105
JWH104
JWH102
JWH101
C519
R758
C801
JWH103
CC31
CC42
C800
CC32
CC62
CC61
CC51
CC01
CC52
CC59
CC09
C700
CC55
C500
CC58
CC08
CC56
CC06
R401
R451
CC41
C451
C401
R441
R421
CC54
C400
C667
CN503
C668
C663
CN504
RY791
CC15
CC21
CC13
CC19
CNP503
JW793
TP701
C792
C790
CNP791
J791
D505
F-4
D510
D-9
D540
F-4
D560
C-7
D605
F-11
D610
C-8
D640
F-7
D665
F-8
D680
F-10
D690
D-9
D691
D-9
D705
F-5
D710
D-10
D721
E-10
D722
E-10
D731
D-11
D732
E-11
• Semiconductor Location
Ref. No.
Location
Ref. No.
Location
Ref. No.
Location
Ref. No.
Location
D733
D-11
D734
D-11
D740
F-5
D750
E-9
D765
F-9
D791
F-13
D801
E-13
D802
D-13
D804
E-12
D896
D-6
D902
E-12
D903
E-12
D904
E-13
D905
E-12
IC201
D-4
IC401
E-4
IC501
E-3
IC601
D-8
IC701
E-6
IC702
D-7
IC801
D-6
IC802
D-6
Q361
D-6
Q362
D-6
Q363
E-2
Q364
E-3
Q365
D-7
Q366
D-7
Q379
E-2
Q471
C-2
Q501
F-3
Q502
G-4
Q503
G-3
Q504
G-4
Q505
F-3
Q506
F-3
Q540
F-5
Q550
D-9
Q560
D-7
Q601
F-10
Q602
G-11
Q603
G-10
Q604
G-11
Q605
F-11
Q606
F-11
Q610
D-9
Q640
F-8
Q651
F-7
Q652
G-7
Ref. No.
Location
Q653
G-7
Q654
G-7
Q655
F-7
Q656
F-8
Q680
F-10
Q691
E-10
Q692
D-9
Q701
F-5
Q702
G-6
Q703
G-5
Q704
G-6
Q705
F-6
Q706
F-5
Q710
D-10
Q722
E-10
Q723
E-11
Q725
E-10
Ref. No.
Location
Q740
F-6
Q747
E-5
Q748
E-5
Q750
F-9
Q751
F-8
Q752
G-9
Q753
G-9
Q754
G-10
Q755
F-9
Q756
F-10
Q790
D-12
Q801
E-12
(Page 27)
(Page 27)
(Page 27)
(Page 32)
(Page 32)
(Page 32)
(Page 32)
(Page 36)
(Page 36)
(Page 36)
STR-DE685
24
24
4-9. SCHEMATIC DIAGRAM — MAIN SECTION (1/2) — • Refer to page 22 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
Q361
Q362
Q363
Q364
Q365
Q366
R373
R374
R375
R376
R377
R378
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
R361
R362
R379
R367
R368
R366
R369
R371
R372
R370
R360
R363
C903
D903
D902
C901
C830
R472
R471
R475
C488
C487
C489
C490
C497
C490
C497
C467
C466
R474
Q801
Q560
Q471
Q379
C465
CNP501
CN505
IC401
IC801
IC802
CNP802
CNP801
R910
CNP502
CNP911
C492
C482
C494
C484
C496
C414
C415
C418
C417
C416
RY560
CC07
CC57
CC05
CC04
CC02
C376
C375
C373
C372
C371
D802
C419
CC06
CC56
CC08
CC58
CC55
CC54
CC09
CC59
CC52
CC32
J402
C500
J403
C700
C800
CC01
CC51
CC61
CC62
CC42
CC31
CC41
R401
R451
C401
C451
R421
R441
C400
J405
CN504
IC201
C808
C803
C804
CNP503
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.
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Click on the first or last page to see other STR-DE685 service manuals if exist.