Sony STR-KSL900W Service Manual ▷ View online
21
21
STR-KSL900W
STR-KSL900W
4-12. SCHEMATIC DIAGRAM – MAIN SECTION (1/2) –
R502
C502
R363
R360
R374
R373
R375
R367
R368
R366
C374
C373
R379
R362
C372
C371
R361
R503
R504
C509
C504
R505
C508
C506
C507
C510
C518
C503
R501
IC501
R751
R752
C752
C754
R755
C760
C758
C757
R753
R754
R765
C768
IC751
C756
C751
C501
C759
C755
R381
R702
C702
R701
C701
C706
C707
C708
C710
C704 R715
R705
R703
R704
C709
C705
C718
C703
C753
IC701
R515
Q379
CNS402
R380
Q364
Q363
Q362
Q361
22k
100p
100k
100k
1k
1k
1k
100k
47k
10k
0.1
0.022
4.7k
4.7k
0.022
0.022
4.7k
470
100
10V
10V
4.7p
22k
1
50V
1
50V
0.1
0.1
1 50V
560p
100
LM3886T
100
22k
100p
27p
22k
0.1
1
50V
0.1
270
470
33k
1 50V
LM3886T
1
50V
4.7
50V
50V
4.7
50V
50V
100
10V
10V
2200p
10k
22k
100p
100
4.7
50V
50V
1
50V
0.1
1
50V
0.1
27p
33k
22k
270
470
100
10V
10V
2200p
1 50V
1000p
1000p
LM3886T
33k
BN1F4M
11P
100k
2SC3576
2SC3576
2SC3576
2SC3576
Z1
Z2
Z3
Z4
Z5
Z8
Z9
Z10
Z11
270
L-CH
R-CH
GND
GND
GND
GND
GND
SR-CH
SL-CH
SW-CH
C-CH
(1/2)
POWER AMP
MUTING
MUTING
MUTING
MUTING
MUTING
CONTROL
SWITCH
V+
NC
NC
NC
MUTE
GND
V+
V-
POWER AMP
V+
NC
NC
NC
MUTE
GND
V+
V-
POWER AMP
V+
NC
NC
NC
MUTE
GND
V+
V-
(Page 18)
(Page 22)
22
22
STR-KSL900W
STR-KSL900W
4-13. SCHEMATIC DIAGRAM – MAIN SECTION (2/2) –
R885
Q861
Q863
C871
D808
D805
D806
C815
C816
D807
R832
D812
D810
C821
D811
C811
C812
C806
D802
D803
D801
D804
C813
C814
C805
D815
D816
D814
D817
C803
C804
C744
C794
C544
D813
CNP804
CNP802
CNP801
C641
C791
C741
C817
D521
D621
R522
D520
D731
R730
R733
C730
Q731
Q730
R731
C732
R732
Q732
D721
R722
R552
C563
R551
C564
Q551
C565
R555
R557
C561
R558
R556
R554
C562
Q550
CN820
R507
L507
R510
R708
R758
L757
R760
R710
R750
R509
C511
R759
C761
R709
C711
IC405
C444
C445
IC406
CNP821
C802
C801
C818
C819
R741
R791
R641
R740
R540
L707
CNP861
R707
R757
Q720
RY701
D720
R508
D550
R553
R910
R883
R882
M1
CNS822
C820
R831
D809
R811
R810
T901
CNP901
CNP902
CNP903
R956
R955
R951
R954
R952
D956
D957
D951
D952
D953
D954
D955
C924
C923
Q951
Q901
R953
RY901
F901
T902
C925
G102
Q862
Q866
R884
R881
D820
C922
C921
Q520
RY501
C447
C446
TM601
100
2SB734
BN1F4M
100
16V
16V
10EDB40
10EDB40
10EDB40
0.1
0.1
10EDB40
22k
HZS30-1L
10EDB40
220
35V
35V
10EDB40
1000
25V
1000
25V
1000
25V
10EDB40
10EDB40
10EDB40
10EDB40
1000p
1000p
1000
25V
10EDB40
10EDB40
10EDB40
10EDB40
1000p
1000p
390p
330p
330p
HZ6.8BP
3P
5P
3P
0.01
0.01
0.01
3300
16V
1SS133T
1SS133T
4.7k
1SS133T
1SS133T
6.8k
47k
220
10V
10V
2SA988
2SC2785
10k
0.1
33k
2SC1841
1SS133T
4.7k
3.3k
1
50V
100k
4.7
50V
50V
2SC2785
100
16V
16V
4.7k
220k
4.7
50V
50V
100k
68k
820
1
50V
2SC2785
4P
4.7
27k
47k
47k
27k
27k
1k
10
0.022
10
0.022
10
0.022
7805
0.1
0.1
79M05
10P
0.22
0.22
4700
50V
4700
50V
4.7
4.7
4.7
47
47
3P
4.7
4.7
2SC2785
1SS133T
47k
1SS133T
10k
0.47
23P
100
50V
50V
220
RBV-602
0.47
0.47
2P
2P
4P
10k
33k
47k
47k
4.7k
1SS133T
1SS133T
1SS133T
10EDB40
10EDB40
10EDB40
10EDB40
1
50V
1000
25V
2SC2785
2SC2785
1
T1.6AL
250V
0.1
BN1F4M
BN1F4M
47k
1.5k
RD5.6
0.022
0.022
2SC2785
47
25V
10
50V
Z1
Z2
Z3
Z4
Z5
Z8
Z9
Z10
Z11
F1
F2
-30V
F.RY
C.RY
S.RY
F.RY
C.RY
S.RY
F1
F2
-30V
F2
F1
GND
STOP
GND
FRONT SP RELAY
CENTER SP RELAY
REAR SP RELAY
STANBY+V
POWER RELAY
F_CTRL2
-27V
FUNCTION MUTE
-7V
+7V
AUDIO +
AUDIO -
VIDEO GND
CHASSIS GND
CHASSIS GND
R2 GND(RELAY)
GND
-B
+B
+R2
+R3
-R2
-R3
(CHASSIS)
(2/2)
RELAY
DRIVE
Q730-732
AC POWER
PROTECTOR
-1
-2
Q550,551
FAN MOTOR
LEVEL DETECT
RELAY DRIVE
+5V REGULATOR
O
G
I
O
G
I
-5V REGULATOR
Q861-863
(FAN)
DIGITAL+V
GND
+V2
+V2
GND
F_CLK
+V
PROTECTOR
FAN_ON/OFF
IMPEDANCE
SPEAKER
USE 6–16
Ω
1
4
2
3
MAIN POWER
TRANSFORMER
+5V
-5V
RELAY DRIVE
AC POWER
DETECT
TRANSFORMER
SUB POWER
(AC IN)
(CHASSIS)
DETECT
FAN MOTOR
FAN MOTOR DRIVE
-1
-2
1.5k
1.5k
(Page 21)
(Page 18)
(Page 16)
23
23
STR-KSL900W
STR-KSL900W
4-14. PRINTED WIRING BOARD – DISPLAY SECTION –
•
See page 7 for Circuit Boards Location.
: Uses unleaded solder.
• Semiconductor
Location
Ref. No.
Location
D151
B-8
D152
B-9
D153
B-10
D154
B-10
IC102
B-8
IC152
B-4
R176
JW105
JW102
JW104
JW107
JW108
JW109
JW110
JW111
JW112
JW113
JW114
JW115
JW116
JW117
JW118
JW101
JW120
JW121
JW123
JW124
JW125
D154
D153
D152
D151
CNS151
CNP161
R152
R153
C112
S123
R178
C156
C155
C143
C142
C141
C158
C159
R198
R199
C157
IC102
IC152
LP101
C160
CN160
S117
S118
S119
S120
S121
S122
RV101
R194
R191
R192
1
44
22
12
11
33
34
23
DISPLAY BOARD
1-861-778-
11
(11)
1-861-779-
11
(11)
VOLUME BOARD
DIGITAL BOARD
CNS193
(Page 12)
D
TUNER
TV/SAT
DVD
VIDEO
1
3
68
65
64
49
34
FL101
FLUORESCENT INDICATOR TUBE
15
4
1
1
1
1
6
6
PRESET TUNING
SOUND FIELD
INPUT SELECTOR
1
3
MUTING
–
+
PL
ROTARY ENCODER
MASTER VOLUME
(CHASSIS)
A
B
C
D
1
2
3
4
5
6
7
8
9
10
24
24
STR-KSL900W
STR-KSL900W
4-15. SCHEMATIC DIAGRAM – DISPLAY SECTION –
•
See page 27 for Waveform.
•
See page 30 for IC Block Diagram.
R199
R198
C157
C158
FL101
C141
C156
C155
C143
C159
R178
R153
R152
C112
CN160
CNP161
R191
R192
R194
C160
S120
S121
C142
CNS151
IC152
R176
D154
D153
D152
D151
S123
IC102
S119
LP101
RV101
S117
S118
S122
1
1
10
50V
0.1
10
50V
220p
220p
1000p
0.1
82k
100
10
47
16V
6P
6P
1k
1k
1k
0.1
0.1
17P
UPD16315GB-3BS
150
SELS5B23C
SELS5B23C
SELS523C
SELS5B23C
RPM7240-H9
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
S
EG
1
0
S
EG
1
1
S
EG
12
S
EG
13
SEG
14
S
EG
15
S
EG
1
6
S
EG
1
S
EG
2
SEG
3
SEG
4
SEG
5
SEG
6
SEG
7
SEG8
SEG
9
SEG
10
SEG11
SEG
12
SEG
13
SEG
14
SEG15
SEG16
GRID1
GRID2
GRID3
GRID4
GRID5
GRID6
GRID7
GRID8
GRID9
G
R
ID
10
G
R
ID
11
G
R
ID
12
G
R
ID
1
G
R
ID
2
G
R
ID
3
G
R
ID
4
G
R
ID
5
G
R
ID
6
G
R
ID
7
G
R
ID
8
G
R
ID
9
G
R
ID
10
G
R
ID
11
G
R
ID
12
+5V
SIRCS
FL CLK
FL DATA
FL LAT
VOL UP
VOL DOWN
GND
POWER SW
F2
+3.3V(STBY)
F1
-27V
GND
VOL UP
VOL DOWN
GND
AD(0)
AD(1)
AD(2)
FLUORESCENT INDICATOR TUBE
GND
VOUT
VCC
FLUORESCENT
INDICATOR TUBE DRIVER,
LED DRIVER
VIDEO
DVD
TV/SAT
TUNER
AD2
AD1
AD0
REMOTE CONTROL
RECEIVER
PL
(CHASSIS)
ROTARY ENCODER
MASTER VOLUME
MUTING
INPUT SELECTOR
SOUND FIELD
PRESET TUNING
+
-
(Page 16)
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