STR-K740P, STR-K840P - Sony Audio Service Manual (repair manual)

Model
STR-K740P STR-K840P
Pages
14
Size
2.33 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio / SUPPLEMENT-1
File
str-k740p-str-k840p.pdf
Date

View Sony STR-K740P / STR-K840P Service Manual online

1
US Model
Canadian Model
AEP Model
UK Model
E Model
SERVICE MANUAL
Ver 1.2  2003. 09
SUPPLEMENT-1
File this supplement with the service manual.
Subject : Change of IC701, IC702.
The IC701 and IC702 on the US model have been changed from 
µ
PC2581V-S to
STK350-030 in the process of production.
Based on these changes, the MAIN board and VIDEO board are changed and
the STK board is added.
This SERVICE MANUAL SUPPLEMENT-1 only describeds the changes made.
STR-K740P/K840P
(SPM-03064)
9-873-544-81
2
STR-K740P/K840P
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
For schematic diagrams.
Note:
• All capacitors are in 
µ
F unless otherwise noted. p : pF. 50 WV or
less are not indicated except for electrolytics and tantalums.
• All resistors are in 
 and 
1
/
4
 
W or less unless otherwise specified.
%
: indicates tolerance.
f
: internal component.
2
: nonflammable resistor.
5
: fusible resistor.
C
: panel designation.
A
: B+ Line.
B
: B– Line.
• Voltages and waveforms are dc with respect to ground under
no-signal (detuned) conditions.
No mark : FM
• Voltages are taken with a VOM (Input impedance 10 M
).
Voltage variations may be noted due to normal production
tolerances.
• Waveforms are taken with a oscilloscope.
• Circled numbers refer to waveforms.
• Signal path.
F
: FM
J
: CD (ANALOG)
c
: DVD (DIGITAL)
• Abbreviation
CND : Canadian model
MY
: Malaysia model
SP
: Singapore model
AR
: Argentine model
MX
: Mexican model
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this necessary note is printed in each block.)
Note:
The components identified by
mark 
0
 or dotted line with mark
0
 are critical for safety.
Replace only with part number
specified.
Note:
Les composants identifiés par
une marque 
0
  sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce portant le numéro spécifié.
Caution:
Pattern face side:
Parts on the pattern face side seen from
(Side A)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Side B)
the parts face are indicated.
For printed wiring boards.
Note:
• X
: parts extracted from the component side.
a
: Through hole.
f
: internal component.
: Pattern from the side which enables seeing.
C
B
These are omitted.
E
Q
B
These are omitted.
C
E
STR-K740P/K840P
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
D
E
L
K
J
B
6
(K840P)
JW793
TP701
C792
C790
CNP791
J791
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
((Page 12))
((Page 12))
(Page 6)
(Page 6)
((Page 21))
((Page 12))
((Page 21))
((Page 21))
I
H
(Page 8)
G
IC201
1. PRINTED WIRING BOARDS — MAIN SECTION —
  • Refer to page 2 for Common Note on Printed Wiring Boards.
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-K740P/K840P
4
4
2. SCHEMATIC DIAGRAM — MAIN SECTION (1/2) —
  • Refer to page 2 for Common Note on Schematic Diagram.
G
D
J
H
((Page 22))
B
E
2
*
*
*
C803, 804
4700/63V (K740P)
6800/71V (K840P)
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
(Page 9)
((Page 13))
K840P
((Page 22))
I
((Page 22))
((Page 14))
((Page 14))
(Page 5)
(Page 5)
1
The components identified by
mark 
0
 or dotted line with mark
0
 are critical for safety.
Replace only with part number
specified.
Les composants identifiés par
une marque 
0
  sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce portant le numéro spécifié.

Download Sony STR-K740P / STR-K840P Service Manual (Repair Manual)

Here you can view online and download Sony STR-K740P / STR-K840P Service Manual in PDF. STR-K740P / STR-K840P service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sony STR-K740P / STR-K840P Audio. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.