HT-1700D, HT-5500D, HT-DDW740, HT-DDW840, STR-K740P, STR-K840P - Sony Audio Service Manual (repair manual). Page 11

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11
11
STR-K740P/K840P
– DISPLAY/POWER Section –
IN2
8
12
+V OUT2
POWER AMP
IC701
POWER AMP
IC702
9
NF2
LIMITER
Q701,702
11
-V OUT2
IN2
12
+V OUT2
9
NF2
11
-V OUT2
BOOSTER
Q703
BOOSTER
Q704
CURRENT
DETECT
Q705,706
AF POWER
PROTECT
Q740
LIMITER
Q651,652
BOOSTER
Q653
BOOSTER
Q654
CURRENT
DETECT
Q655,656
IN+
1
6
+V OUT
POWER AMP
IC501
2
IN-
LIMITER
Q501,502
5
-V OUT
BOOSTER
Q503
BOOSTER
Q504
CURRENT
DETECT
Q505,506
D721
PROTECT
SWITCH
Q722,723,725
RELAY
DRIVE
Q790
RY791
RELAY
DRIVE
Q710
RY701
D731
RELAY
DRIVE
Q610
RY601
D733
RELAY
DRIVE
Q550
RY501
D734
IC401
5
7
RELAY
DRIVE
Q560
RY560
L
R
SR
SL
C
R-CH
R-CH
R-CH
PHONES
TM601
TM602
AUDIO
OUT
J405
67
PROTECTOR
68
HEADPHONE RELAY
72
PREOUT/FRONT RELAY
70
REAR RELAY
71
CENTER RELAY
69
WOOFER RELAY
LED DRIVE
Q100-104
RV102
ENCODER
3
1
VOL(B)
59
VOL(A)
60
POWER KEY
56
?/1
S145
77
RSTX
48
STOP
54
SIRCS
55
FUSE DETECT
REMOTE
CONTROL
RECEIVER
1
IC102
D910-913
AC
IN
T902
RY901
D915
F901
D914
RELAY
DRIVE
Q901
D820-823
23
VCC5
84
VCC3
-5V
REG
3
2
+5V
REG
3
1
-7V
REG
3
2
+7V
REG
1
3
AUDIO
+7V
VIDEO
+5V
VIDEO
-5V
IC801
IC802
IC807
IC804
POWER RELAY
66
RELAY
+B
D902-905
82
83
X0
X1
X1601
20.0MHz
F1
F2
L
SL
SL
C
SW
A
MUTING
1
MUTING
1
POWER
MUTING
Q747,748
22
AC MUTING
J791
FLUORESCENT
INDICATOR TUBE
FL101
61
DIN
62
CLK
63
FL_STB
7
DIN
8
CLK
9
STB
14 29
SEG1-16
42 31
GRID1-12
F1
F2
1
SW1
2
SW2
3
SW3
4
SW4
FL DRIVE
IC100
D111-114
29
BLUE LED
30
MODE LED
31
2CH LED
32
AFD LED
26
DCS LED
FUNCTION
KEY
A/D0
38
S110-119
S100-109
FUNCTION
KEY
A/D1
39
FUNCTION
KEY
A/D2
40
S120-128
FUNCTION
KEY
A/D3
41
S130-137,
S143,144
B
RESET
SYSTEM CONTROL
IC1601(3/3)
• Signal Path
• R-CH is omitted due to same as L-CH
: FM
AF POWER
PROTECT
Q640
AF POWER
PROTECT
Q540
IC601
2
1
FRONT
SURROUND
CENTER
IC601
5
7
25
HP DETECT
BUFFER
IC101
D100-104
35
AVCC
+3.3V
REG
3
1
IC1904
AUDIO
-7V
D899
D898
+10V
REG
3
1
TUNER
+10V
IC1902
T901
+3.3V REG
Q471
Q921
AC DET
+3.3V
REG
3
1
IC1905
1
2
IC1602
TUNER
+3.3V
+3.3V
D802
+B
-B
-B SW
Q691,692
-30V REG
Q801
FL101
-30V
POWER AMP
-B
+5V
REG
3
1
IC1903
+5V
+2.5V
REG
5
+2.5V
+3.3V
REG
2
4
IC1901
+3.3V
+5V
REG
3
1
IC1503
AUDIO
+5V
SPEAKERS
SUB
WOOFER
MASTER
VOLUME
8
Q107-111
LED
DRIVE
RESET
+3.3V(STBY)
K740P:AEP,UK
K840P:AEP,UK
S901
VOLTAGE
SELECTOR
K740P:E/K840P:E MODEL ONLY
g
12
12
STR-K740P/K840P
• See page 8 for Circuit Boards Location.
3-3. Printed Wiring Board – DIGITAL Section –
IC1102
IC1502
IC1501
IC1101
IC1552
IC1201
IC1202
IC1601
IC1604
IC1602
IC1105
IC1503
IC1904
IC1902
IC1905
IC1901
IC1903
11P:EXCEPT K740P:AEP,UK/K840P:AEP,UK
15P:K740P:AEP,UK/K840P:AEP,UK
K740P:AEP,UK/K840P:AEP,UK
• 
 : Uses unleaded solder.
Ref. No.
Location
D1001
A-2
D1101
A-3
D1501
B-8
D1502
B-8
D1601
E-1
D1905
F-7
D1906
E-7
D1907
E-7
IC1101
A-3
IC1102
A-1
IC1105
A-6
IC1201
C-2
IC1202
C-3
IC1501
B-2
IC1502
B-1
IC1503
C-9
IC1552
B-1
IC1601
D-1
IC1602
E-1
IC1604
F-1
IC1901
E-7
IC1902
E-6
IC1903
F-7
IC1904
E-6
Q1601
D-1
Q1602
E-1
• Semiconductor
Location
13
13
STR-K740P/K840P
3-4. Schematic Diagram – DIGITAL Section (1/2) –
• See page 9 for Waveform.   • See page 23 for IC Block Diagrams.
IC B/D
14
14
STR-K740P/K840P
3-5. Schematic Diagram – DIGITAL Section (2/2) –
• See page 9 for Waveform.   • See page 25 for IC Pin Function Description.
15
15
STR-K740P/K840P
• See page 8 for Circuit Boards Location.
3-6. Printed Wiring Board – MAIN Section –
IC201
IC801
IC802
IC702
IC701
IC601
IC401
IC501
Q604
Q603
Q754
Q753
Q654
Q653
Q704
Q703
Q504
Q503
P H O N E S
K740P:AEP,UK/K840P:AEP,UK
K740P:AEP,UK/K840P:AEP,UK
K740P:AEP,UK/K840P:AEP,UK
(CHASSIS)
• 
 : Uses unleaded solder.
Ref. No.
Location
D505
E-3
D510
C-9
D540
E-4
D560
B-7
D605
E-11
D610
B-8
D640
E-7
D665
E-7
D680
E-10
D690
C-9
D691
C-9
D705
E-5
D710
C-10
D721
D-10
D722
D-10
D731
C-11
D732
D-11
• Semiconductor
Location
Ref. No.
Location
D733
C-11
D734
C-11
D740
E-5
D750
E-9
D765
E-9
D791
E-13
D801
D-13
D802
B-13
D804
D-12
D896
C-5
D902
D-12
D903
D-12
D904
D-13
D905
D-12
Ref. No.
Location
IC201
C-3
IC401
D-3
IC501
E-2
IC601
C-8
IC701
D-5
IC702
D-7
IC801
B-6
IC802
C-6
Ref. No.
Location
Q361
C-5
Q362
C-6
Q363
D-1
Q364
D-2
Q365
C-6
Q366
C-7
Q379
D-1
Q471
B-2
Q501
E-2
Q502
F-3
Q503
F-3
Q504
F-7
Q505
E-2
Q506
E-3
Q540
E-4
Q550
C-9
Q560
C-7
Ref. No.
Location
Q601
E-10
Q602
F-11
Q603
F-10
Q604
F-11
Q605
E-11
Q606
E-11
Q610
C-9
Q640
E-7
Q651
E-6
Q652
F-7
Q653
F-7
Q654
F-8
Q655
E-6
Q656
E-8
Q680
E-10
Q691
D-10
Q692
C-9
Ref. No.
Location
Q701
E-4
Q702
F-5
Q703
F-5
Q704
F-6
Q705
E-6
Q706
E-5
Q710
C-9
Q722
D-11
Q723
D-11
Q725
D-10
Q740
E-5
Q747
D-4
Q748
D-4
Q750
E-9
Q751
E-8
Q752
F-9
Q753
F-8
Ref. No.
Location
Q754
F-9
Q755
E-9
Q756
E-9
Q790
C-12
Q801
E-12
16
16
STR-K740P/K840P
3-7. Schematic Diagram – MAIN Section (1/2) –
• See page 23 for IC Block Diagrams.
13
17
17
STR-K740P/K840P
3-8. Schematic Diagram – MAIN Section (2/2) –
• See page 23 for IC Block Diagrams.
IC B/D
IC B/D
IC B/D
18
18
STR-K740P/K840P
• See page 8 for Circuit Boards Location.
3-9. Printed Wiring Board – DISPLAY Section –
IC100
IC101
IC102
:K740P:AEP,UK/K840P:AEP,UK
:EXCEPT K740P:AEP,UK/K840P:AEP,UK
:K740P:AEP,UK/K840P:AEP,UK
:EXCEPT K740P:AEP,UK/K840P:AEP,UK
D i g i t a l
C i n e m a
S o u n d
• 
 : Uses unleaded solder.
Ref. No.
Location
D100
B-6
D102
A-9
D103
D-7
D104
D-6
D105
D-6
D111
C-7
D112
C-6
D113
C-9
D114
C-8
IC100
B-9
IC101
B-3
IC102
B-13
Q100
A-6
Q101
D-1
Q102
D-2
Q103
D-2
Q104
B-5
Q107
B-11
Q108
B-11
Q109
B-11
Q110
B-11
Q111
B-12
• Semiconductor
Location
19
19
STR-K740P/K840P
3-10. Schematic Diagram – DISPLAY Section –
• See page 24 for IC Block Diagrams.
IC B/D
20
20
STR-K740P/K840P
• See page 8 for Circuit Boards Location.
3-11. Printed Wiring Board – VIDEO Section –
3-12. Schematic Diagram – VIDEO Section –
• See page 24 for IC Block Diagrams.
IC807
IC804
IC103
• 
 : Uses unleaded solder.
IC B/D

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