Sony HT-DDW7500 / HT-DDW8500 / STR-KM7500 Service Manual ▷ View online
21
21
STR-KM7500
STR-KM7500
1
2
3
4
5
6
7
8
9
10
11
14
15
12
13
A
B
C
D
E
F
G
H
I
J
5-10. SCHEMATIC DIAGRAM — MAIN BOARD (1/4) — • See page 11 for Block Diagram • Refer to page 49 IC Block Diagrams.
Ver. 1.4
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
2SA1163L-TE85L
Q603
2SA1163L-TE85L
Q602
L600
1
2
3
MN2488-OPY-MK
IC604
SBR +VE
B
C
E
1
2
3
B
C
E
2SA1115TP-EF
Q600
CP600
R652
10
1.5k
R648
15k
R649
MP1620-OPY-MK
IC605
SBR -VE
R651
4.7
2.2k
R641
47k
R653
220p
C653
560
R643
68k
R650
6.2k
R647
C654
0.022
4.7k
R646
82k
R642
25V
47
C650
47p
C652
C651
47p
2SA1163L-TE85L
Q606
560
R669
47p
C657
C661
47p
2SA1115TP-EF
POWER AMP
POWER AMP
Q604
1
2
3
MN2488-OPY-MK
IC608
C +VE
B
C
E
6.2k
R673
R679
47k
2.2k
R667
25V
47
C655
2SA1163L-TE85L
Q611
1.5k
R674
2SA1115TP-EF
Q608
82k
R655
L601
1.5k
R661
4.7k
R659
560
R656
0.022
C664
82k
R668
220p
C658
4.7k
R672
R664
4.7
0.022
C659
Q610
68k
R676
1
2
3
MP1620-OPY-MK
IC607
SBL -VE
B
C
E
25V
47
C660
1
2
3
MN2488-OPY-MK
IC606
SBL +VE
B
C
E
10
R678
R665
10
15k
R662
1
2
3
MP1620-OPY-MK
IC609
C -VE
C -VE
B
C
E
47k
R666
L602
15k
R675
CP602
Q607
2.2k
R654
CP601
6.2k
R660
220p
C663
68k
R663
47p
C662
R677
4.7
1000V
3p
C613
3p
C620
1k
R610
50V
C609
10
68k
R613
100p
C610
100p
C619
100p
C612
50V
C616
10
1k
R616
100p
C617
68k
R619
68k
R617
D602
D601
D600
100p
C606
68k
R605
1k
R604
3p
C607
100p
C604
R607
68k
50V
C603
10
100
R671
100
R670
100
R645
100
R644
100
R658
100
R657
R606
2.2k
2.2k
R618
2.2k
R612
C656
47p
JW600
JW601
JW602
JW603
68k
R611
10V
C614
220
10V
C608
220
10V
C621
220
47k
R732
47k
R733
47k
R735
0.01
C685
0.01
C686
0.01
C688
D607
MA2J1
110GLS0
D608
MA2J1
110GLS0
D610
100k
R739
100k
R740
100k
R742
25V
47
C692
MAZ8056GMLS0
D614
15k
R747
18k
R748
MA2J1
110GLS0
D617
0.01
C693
15k
R751
100k
R752
D571
MAZ8030G0LSO
R571
6.8k
R573
22k
C571
220
R572
0
100p
C618
1000V
1000V
1000V
50V
100p
C605
1000V
1000V
100p
C611
1
9
8
7
6
5
4
3
2
15
14
13
12
11
10
1
9
8
7
6
5
4
3
2
15
14
13
12
11
10
STK350-530T-E
PRE DRIVER
IC600
MUTE
-VOUT1
+VOUT1
COMP1
NF1
IN1
GND
IN2
NF2
COMP2
-VOUT2
+VOUT2
VCC
VCC
VEE
STK350-530T-E
IC601
MUTE
+VOUT1
-VOUT1
COMP1
NF1
IN1
GND
IN2
NF2
COMP2
-VOUT2
+VOUT2
VCC
VCC
VEE
68k
R755
Q601
2SD2144S-TP-V
Q609
Q605
0
R756
10k
R746
PROTECTOR
[SBR]
[SBL]
[C]
VACS
SL_OUT
SBR_OUT
SW/SBSBL_OUT
IC604
IC605
IC608
IC609
IC606
IC607
IC600
IC B/D
PRE DRIVER
IC601
2SD2144S-TP-V
2SD2144S-TP-V
POWER AMP
POWER AMP
POWER AMP
OVERLOAD DETECT
OVERLOAD DETECT
OVERLOAD DETECT
OVERLOAD DETECT
A1
A2
AA1
AA2
-55.3
55.3 55.3
1.2
-1.1
54.8
-0.3
-0.2
-55.3
55.3
55.3
1.2
-1.1
54.8
-0.3
-0.2
-0.2
-0.3
55
-1.1
1.2
0
1.2 55.5
0
1.2
-1.1
1.2
-1.1
1.2
-1.1
0
0
0
0
-44.7
0
0
0
0
0
-44.7
0
0
0
0
0
-44.7
0
1.2
55.5
0
1.2 55.5
0
-1.1 -55.7
0
-1.1 -55.7
0
-1.1 -55.7
0
IC B/D
A25
A26
A27
A28
A31
A34
A35
A36
10V
1000V
1000V
1000V
1000V
1000V
OVERLOAD DETECT
2SA1163L-TE85L
*1
*1
*1
*1
ENCAPSULATED COMPONENT
OVERLOAD DETECT
MA2J1
110GLS0
MA2J1
110GLS0
MA2J1
110GLS0
MA2J1
110GLS0
2SA1163L-TE85L
POWER AMP
IC604, IC605,
Q600, Q601
POWER AMP
IC608, IC609,
Q608, Q609
POWER AMP
IC606, IC607,
Q604, Q605
POWER AMP
1000V
MAIN BOARD (1/4)
MAIN BOARD
(3/4)
(Page 23)
2
MAIN BOARD
(2/4)
(Page 22)
1
MAIN BOARD
(4/4)
(Page 24)
6
22
22
STR-KM7500
STR-KM7500
1
2
3
4
5
6
7
8
9
10
11
14
15
12
13
A
B
C
D
E
F
G
H
I
J
5-11. SCHEMATIC DIAGRAM — MAIN BOARD (2/4) — • See page 11 for Block Diagram • Refer to page 49 IC Block Diagrams.
Ver. 1.4
2SA1163L-TE85L
Q614
560
R708
*1
CP605
1
2
3
MN2488-OPY-MK
IC614
SL +VE
B
C
E
47k
R718
*1
CP606
C671
47p
2SA1163L-TE85L
Q627
Q612
1
2
3
MN2488-OPY-MK
IC612
R +VE
B
C
E
25V
47
C675
4.7k
R711
R705 47k
82k
R720
Q620
68k
R640
Q619
1.5k
R700
4.7k
R724
1.5k
R687
100p
C640
1000V
1000V
1000V
1000V
1000V
1000V
1000V
1000V
C666
47p
560
R682
1
2
3
MP1620-OPY-MK
IC615
SL -VE
B
C
E
220p
C668
4.7k
R698
1000V
3p
C641
25V
47
C680
68k
R702
68k
R624
1.5k
R713
25V
47
C670
1
2
3
MN2488-OPY-MK
IC610
L +VE
L +VE
B
C
E
10
R704
10
R691
L606
15k
R714
1000V
3p
C648
1
2
3
MP1620-OPY-MK
IC613
R -VE
R -VE
B
C
E
2SA1163L-TE85L
Q615
2.2k
R680
C681
47p
1.5k
R726
100p
C625
220p
C673
100p
C634
R703
4.7
560
R695
47p
C667
2SA1163L-TE85L
Q622
68k
R630
100p
C647
2.2k
R719
0.022
C684
47p
C677
2SA1163L-TE85L
Q623
2.2k
R693
68k
R634
L605
1
2
3
MP1620-OPY-MK
IC617
SR -VE
B
C
E
220p
C683
1000V
3p
C626
25V
47
C665
68k
R715
Q624
2SA1115TP-EF
Q616
10
R730
82k
R681
L603
2.2k
R706
4.7k
R685
10
R717
C676
47p
0.022
C674
2SA1163L-TE85L
Q626
82k
R694
560
R721
R690
4.7
0.022
C669
2SA1163L-TE85L
OVERLOAD DETECT
Q618
1
2
3
MP1620-OPY-MK
IC611
L -VE
B
C
E
6.2k
R725
47p
C682
15k
R727
68k
R728
47k
R731
15k
R688
L604
R729
4.7
6.2k
R712
15k
R701
*1
CP604
*1
CP603
6.2k
R686
82k
R707
1000V
3p
C635
1
2
3
MN2488-OPY-MK
IC616
SR +VE
B
C
E
0.022
C679
68k
R689
R716
4.7
220p
C678
47p
C672
39k
R584
2SC3052EF-T1-LEF
Q584
50V
10
C583
2SA1163L-TE85L
Q583
10k
R585
6.8k
R583
2SA1163L-TE85L
PROTECTOR
PROTECTOR
PROTECTOR
PROTECTOR
PROTECTOR
Q581
2SC3052EF-T1-LEF
Q582
1k
R586
1k
R627
1k
R621
50V
C631
10
100p
C632
100p
C623
50V
C622
10
68k
R628
68k
R622
1k
R637
1k
R632
50V
C644
10
100p
C645
100p
C638
50V
C637
10
68k
R638
68k
R600
R692 47k
MA2J1
110GLS0
D606
MA2J
11
10GLS0
D605
MA2J1
110GLS0
D604
MA2J1
110GLS0
D603
100
R697
100
R722
100
R683
100
R709
100
R710
100
R723
100
R684
100
R696
2.2k
R639
2.2k
R623
2.2k
R633
2.2k
R629
6.2k
R699
10V
C627
220
10V
C636
220
10V
C649
220
10V
C642
220
10V
330
C581
10V
330
C582
20k
R581
39k
R582
2SC2713G-TE85L
Q585
10k
R734
10k
R736
47k
R737
47k
R738
0.01
C687
0.01
C689
0.01
C690
0.01
C691
MA2J1
110GLS0
D609
MA2J1
110GLS0
D61
1
MA2J1
110GLS0
D612
MA2J1
110GLS0
D613
100k
R741
100k
R743
100k
R744
100k
R745
MA2J1
110GLS0
D615
MA2J1
110GLS0
D616
15k
R749
15k
R750
100k
R753
100k
R754
MC2838-T112-1
D581
D582
0.1
C694
0.1
C695
1000V
100p
C633
1000V
100p
C624
1000V
100p
C646
1000V
100p
C639
1
9
8
7
6
5
4
3
2
15
14
13
12
11
10
IC602
MUTE
+VOUT1
-VOUT1
COMP1
NF1
IN1
GND
IN2
NF2
COMP2
-VOUT2
+VOUT2
VCC
VCC
VEE
1
9
8
7
6
5
4
3
2
15
14
13
12
11
10
STK350-530T-E
IC603
MUTE
+VOUT1
-VOUT1
COMP1
NF1
IN1
GND
IN2
NF2
COMP2
-VOUT2
+VOUT2
VCC
VCC
VEE
0.47
R601
0.47
R602
Q617
Q613
Q625
Q621
C_OUT
SR_OUT
FL_OUT
FR_OUT
[FL]
[FR]
[SR]
[SL]
C_OUT
SR_OUT
FL_OUT
FR_OUT
C_OUT
SR_OUT
FL_OUT
FR_OUT
IC612
IC613
IC610
IC611
IC616
IC617
IC614
IC615
PRE DRIVER
IC602
PRE DRIVER
IC603
2SD2144S-TP-V
2SD2144S-TP-V
2SD2144S-TP-V
2SD2144S-TP-V
POWER AMP
POWER AMP
POWER AMP
POWER AMP
POWER AMP
POWER AMP
OVERLOAD DETECT
OVERLOAD DETECT
OVERLOAD DETECT
OVERLOAD DETECT
OVERLOAD DETECT
OVERLOAD DETECT
OVERLOAD DETECT
A1
A2
AA4
AA3
-55.3
55.3
55.3
1.2
-1.1
54.8
-0.3
-0.2
-0.2
-0.3
55
-1.1
1.2
0
-55.3
55.3
55.3
1.2
-1.1
54.8
-0.3
-0.2
-0.2
-0.3
55
-1.1
1.2
0
1.2
-1.1
1.2
-1.1
1.2
-1.1
1.2
-1.1
3.3
-47.1
3.3
-48.4
-55.9
2.9
-47.1
0
0
0
0
-44.7
0
0
0
0
0
-44.7
0
0
0
0
0
-44.7
0
0
0
0
0
-44.7
0
1.2 55.5
0
-1.1 -55.7
0
1.2 55.5
0
1.2 55.5
0
1.2 55.5
0
-1.1 -55.7
0
-1.1 -55.7
0
-1.1 -55.7
0
IC B/D
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
A37
A38
A40
A41
A45
A46
A47
2SA1115TP-EF
2SA1115TP-EF
STK350-530T-E
MC2838-T112-1
2SA1115TP-EF
POWER AMP
POWER AMP
2SA1163L-TE85L
IC610, IC611,
Q612, Q613
POWER AMP
IC616, IC617,
Q624, Q625
POWER AMP
IC614, IC615,
Q620, Q621
POWER AMP
IC612, IC613,
Q616, Q617
POWER AMP
*1
ENCAPSULATED COMPONENT
IC B/D
MAIN BOARD (2/4)
MAIN BOARD
(1/4)
(Page 21)
1
MAIN BOARD
(4/4)
(Page 24)
3
MAIN BOARD
(3/4)
(Page 23)
5
23
23
STR-KM7500
STR-KM7500
1
2
3
4
5
6
7
8
9
10
11
14
15
12
13
A
B
C
D
E
F
G
H
I
J
5-12. SCHEMATIC DIAGRAM — MAIN BOARD (3/4) — • See page 11 for Block Diagram • Refer to page 49 IC Block Diagrams.
1
2
3
4
5
6
2
3
4
5
6
CN558
6P
+7V
-7V
GND
L-CH (V2)
V2-GND
R-CH (V2)
SUBWOOFER
AUDIO
OUT
L
R
G
J525
2P
1
2 3 4
6P
L
R
TV
AUDIO
IN
VIDEO 1
L
R
R
OUT
IN
IN
L
R
SAT
AUDIO
IN
L
R
BD
AUDIO
OUT
L
R
AUDIO
IN
L
R
L
CC522
100p
CC529
100p
C539
4.7
R530
1k
C541
4.7
R522
1k
R536
1k
R527
1k
CC521
100p
CC528
100p
CC527
100p
R521
1k
R531
1k
L2
R2
G
R1
L1
R3
L3
J521
4P
J522
4P
J523
CC534
100p
R532
1k
CC523
100p
CC530
100p
R523
1k
R533
1k
CC524
100p
CC531
100p
R524
1k
CC536
2200p
A_GND
R525
1k
C540
4.7
50V
R534
1k
R526
1k
CC525
100p
CC526
100p
C538
4.7
CC533
100p
CC532
100p
R535
1k
C537
2200p
1SR154-400TE-25
D412
0.47
C412
0.47
C414
100p
C551
100p
C552
1k
R551
1k
R552
G
L1
R1
L2
R2
G
L1
R1
L2
R2
JW522
C557
2200p
C555
0.1
C556
0.1
C558
2200p
JS001
JS002
16V
470
C415
16V
470
C413
1
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
11
12
13
14
15
16
17
18
18P
CN555
+7V
-7V
R-CH(V2)
R2-GND
L-CH(V2)
R2+15V
GND
GND
GND
FR
FL
SW
C
SR
SL
GND
GND
GND
SBR
SBL
1
2 3 4 5 6
7 8 9 10 11 12 13 14 15 16 17 18 19 20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
BD3470KS2
ELECTRICAL VOLUME
IC551
1
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
11
12
13
14
15
16
17
18
18P
CN556
ZONE2 L
ZONW2 R
PROTECT
DATA
CLK
MULTI-IN
VACS
L-IN
R-IN
GND
TUNER-R
GND
TUNER-L
SIRIUS-R
SIRIUS-R
SIRIUS-L
DCAC
DM-R
DM-L
I
O
G
I
O COM
KIA7807API-U/PF
IC412
2200p
C535
47k
R443
220
R446
2SC3052EF-T1-LEF
Q441
47k
R445
10k
R444
100k
R441
1k
R442
50V
10
C442
RY441
MA2J1110GLS0
D441
-7V
-15V
+15V
IC551
KIA7907PI
-7V REG
IC413
IC413
+7V REG
IC412
SA-CD/CD/CD-R
INL2
INR2
INL1
INR1
AGND
SBLIN1
SBRIN1
SLIN1
SRIN1
CIN1
SWIN1
FLIN1
FRIN1
AGND
ADCR
ADCL
AGND
AGND
SUB1R
SUB1L
FRIN2
FLIN2
SWIN2
CIN2
AGND
SRIN2
SLIN2
SBRIN2
SBLIN2
RECR1
RECL1
RECR2
RECL2
AGND
RECR3
RECL3
RECR4
RECL4
AGND
AGND
AGND
INR3
INL3
INR4
INL4
INR5
INL5
INR6
INL6
INR7
INL7
INR8
INL8
INR9
INL9
INR10
INL10
INL1
1
INR1
1
INL12
INR12
HPFN
LPF01
LPF02
LPFN2
AGND
LPFN1
SWVOL
VCC
DGND
VEE
OUTFR
OUTFL
OUTSW
OUTC
OUTSR
OUTSL
OUTSBL
OUTSBR
CL
DA
AA1
AA2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
6.9
0 0
-7
0 0
0
0
0
0
0
0
0
0
0
0
0
A25
A26
A27
A28
A17
A18
A18
A31
A19
A20
A20
A34
A35
A36
MAIN BOARD
(4/4)
(Page 24)
4
MAIN BOARD
(1/4)
(Page 21)
2
50V
50V
50V
RELAY DRIVER
MAIN BOARD
(2/4)
(Page 22)
5
IC B/D
A21
A22
A23
A24
CONNECTION
BOARD
CN803
(Page 44)
D
CONNECTION
BOARD
CN804
(Page 44)
E
MAIN BOARD (3/4)
VIDEO 2
BOARD
CN173
(Page 28)
C
24
24
STR-KM7500
STR-KM7500
1
2
3
4
5
6
7
8
9
10
11
14
15
12
13
A
B
C
D
E
F
G
H
I
J
5-13. SCHEMATIC DIAGRAM — MAIN BOARD (4/4) — • See page 11 for Block Diagram • Refer to page 49 IC Block Diagrams.
A1
A2
A3
+-
R
+-
L
+
-
R
+
-
L
+
-
R
+
-
SPEAKERS
L
+
-
RY406
1
2
3
5
6
8
4
4
7
2SC3052EF-T1-LEF
Q406
1
2
3
4
5
5P
CN554
R1 (UPPER TAP)
R1 (LOWER TAP)
R1 GND
R1 (LOWER TAP)
R1 (UPPER TAP)
2.2k
R451
2SC3052EF-T1-LEF
Q451
RY451
12V
Q423
RY423
12V
Q422
RY422
12V
2SC3052EF-T1-LEF
RELAY DRIVER
Q421
Q421-Q423,Q425
2.2k
R421
1k
R425
1k
R429
MA2J1
110GLS0
D423
D406
MA2J1
110GLS0
D421
MA2J1
110GLS0
D422
D451
RY425
12V
1
2
3
4
5
6
MA2J1
110GLS0
D425
Q425
R437 2.2k
10
RR500
0.01
CC500
0.01
CC501
10
RR501
R438
33
33
R430
33
R426
33
R422
47
R453
R406
33
680
R456
R455
680
R440
47k
47k
R428
47k
R432
R424
47k
47k
R454
R408
47k
RY421
12V
R409
2.2k
D403
0.1
C402
25V
2200
C403
1SR154-400TE-25
D401-D404
D401
25V
1000
C404
1
2
3
2
3
3P
CN553
R2 AC
R2 CENTER TAP
R2 AC
R2 CENTER TAP
R2 AC
D402
D404
0.1
C401
1
3
4
5
3
4
5
CN552
5P
HP DETECT
R-CH
GND
L-CH
R-CH
GND
L-CH
TB500
TB502
TB503
0.01
CC504
0.01
CC505
0.01
CC506
0.01
CC507
0.01
CC508
10
RR504
10
RR505
C700 1000p
C699 1000p
10
RR506
10
RR507
10
RR508
C703 1000p
C702 1000p
C701 1000p
250V
2A
F401
250V
2A
F402
1
8
3
4
5
6
7
4
5
6
7
8P
CN551
HP DETECT
BRIDGEABLE RY
HP RY
C-SL-SR RLY
SW PREOUT RY
FRONT A RY
SBR-SBL RLY
C-SL-SR RLY
SW PREOUT RY
FRONT A RY
SBR-SBL RLY
F403
F404
R407
47
0.22
100V
C406
0.22
100V
C407
D5SBA60-F
D407
~
~
C409
0.01p
71V
C408
0.01p
71V
SPK_C
SPK_SR
SPK_SL
SPK_FL-A
+15V
+15V
FR_OUT
FL_OUT
SPK_FR-
A
15V_GND
+15V
-15V
SBR
SBL
AA3
AA4
0.8
0.2
0.8
0.2
0.8
0.2
0.8
0.2
15.6
0
15.7
0
A38
A37
A40
A41
A45
A46
A47
2W
2W
FRONT
SURROUND
CENTER
SURROUND
BACK
MA2J1110GLS0
RELAY DRIVER
RELAY DRIVER
MA2J1110GLS0
C697 1000p
C698 1000p
C698 1000p
L
R
T6.3AL /250V
T6.3AL /250V
A21
A22
A23
A24
MAIN BOARD
(2/4)
(Page 22)
3
MAIN BOARD
(3/4)
(Page 23)
4
HEADPHONE
BOARD
CNP790
(Page 45)
F
DIGITAL BOARD
(2/4)
CN2100
(Page 40)
N
P
MAIN BOARD (4/4)
POWER
TRANSFORMER
T901
(Page 34)
MAIN BOARD
(1/4)
(Page 21)
6
Ver. 1.4
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