Sony HT-1700D / HT-5500D / HT-DDW740 / HT-DDW840 / STR-K740P / STR-K840P Service Manual ▷ View online
8
STR-K740P/K840P
SECTION 3
DIAGRAMS
3-1. Circuit Board Location
VIDEO board
DIGITAL board
MAIN board
DISPLAY board
HEADPHONE board
POWER SW board
STANDBY board
AC SELCT board (E model only)
9
9
STR-K740P/K840P
• Waveform
DIGITAL Board
1
IC1101 wa (XOUT)
4.4Vp-p
81ns
(12.288MHz)
2
IC1201 9 (MCLK1)
3.3Vp-p
73ns (13.59MHz)
3
IC1601 id (XI)
2.8Vp-p
5ns (20MHz)
For schematic diagrams.
Note:
Note:
• All capacitors are in µF unless otherwise noted. p : pF. 50
WV or less are not indicated except for electrolytics and
tantalums.
tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
%
: indicates tolerance.
•
f
: internal component.
• 2 : nonflammable resistor.
• 5 : fusible resistor.
• C : panel designation.
• 5 : fusible resistor.
• C : panel designation.
• A : B+ Line.
• B : B– Line.
• B : B– Line.
• Voltages 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.
• Circled numbers refer to waveforms.
• Circled numbers refer to waveforms.
• Signal path.
F
: FM
J
: CD (ANALOG)
c
: DVD (DIGITAL)
• Abbreviation
CND : Canadian model
MY
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.)
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.
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.
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:
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:
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
10
10
STR-K740P/K840P
3-2. Block Diagrams – MAIN Section –
AUDIO IN
AUDIO IN
AUDIO IN
MULTI
CH IN
FRONT
SURROUND
CENTER
SUB WOOFER
J401
PROC.
L IN9
2
L REC3
67
L IN7
71
L IN2
63
L REC1
61
L IN1
62
51
L OUT
L IN5
69
47
SL OUT
39
C OUT
35
SW OUT
MUTING
Q361
DATA
20
CLK
21
LATCH
22
MUTING
Q365
MUTING
Q363
MUTING
Q364
15
CLK
SDA
SCL
16
LATCH
14
DATA
SYSTEM CONTROL
IC1601(2/3)
J404
DVD/LD
IN
VIDEO 2
IN
J1101
3
5
6
2
IC1102
DIGITAL AUDIO
I/F RECEIVER
IC1101
L
DIN2
5
DO
35
DI
36
CLK
38
CE
37
ERROR
34
XSTATE
17
XMODE
48
13
CK OUT
14
BCK
15
LRCK
16
DATAO
IC1102
X1101
12.288MHz
AUDIO DSP
IC1201
KFSI0
22
SDI2
30
HCLK
34
HCS
36
HACN
32
PM
113
BST
56
XRST
2
23
SDO1
24
SDO2
25
SDO3
BCKI2
29
LRCKI2
28
IC1202
SRAM
AUDIO CODEC
IC1501
MCLKI
39
CDT1
43
CCLK
42
CS
41
PD
17
S.MUTE
3
27
L OUT1
BCK
4
LRCK
5
SDTO
9
SDTI1
6
SDTI2
7
SDTI3
8
25
L OUT2
23
L OUT3
24
R OUT3
LIN+
30
LIN-
29
2
1
IC1502
6
7
IC1502
ANALOG SOUND
AL IN
11
SL
13
16
15
AL OUT
10
DL IN
27
29
31
32
ASL IN
ASW IN
AC IN
SL
C
SW
DSL IN
DC IN
DSW IN
A
98 97 95 96 99 100
94
1
DO
DI
CLK
CE
ERROR
XSTATE
CKSEL1
DATA0
20
HCLK
4
HCS
5
HACN
7
PM
3
BST
6
XRST
10
CDT1
12
SCL
13
CS
8
PD
9
SMUTE
24
ANA/DIG
MUTING
CONT
Q1601,1602
21
5
6
34
33
F.MUTING
MUTING
SWITCH
SWITCH
Q379
49
MD0
51
MD2
28
SP SWITCH/FLASH 1
27
FLASH 2
MD0
VDD
MD2
FLASH 1
FLASH 2
RESET
+3.3V
CNS3
B
J403
J402
CD
MD/TAPE
DVD/LD
VIDEO 2
AUDIO OUT
OPTICAL
IN
IC1105
DIN1
4
• Signal Path
• R-CH is omitted due to same as L-CH.
: FM
: CD(ANALOG)
: DVD (DIGITAL)
22
21
XIN
XOUT
93
XMODE
CKSEL1
47
GP9
68
HD OUT
35
HD IN
33
2
GP9
18
HD OUT
19
HD IN
9
MCLK1
12
MCLK2
X1201
13.5MHz
14
SCK OUT
20
BCKO1
19
LRCKO
18
SDI1
24
AUDIO
GP8
69
EXLOCK
59
L IN8
1
FLASH
FOR
PROGRAMMING
TUNER PACK
FM
75
Ω
COAXIAL
AM
R-CH
ST-DI
ST-DO
CLK
CE
STEREO
TUNED
MUTING
FM
AM
R CH
L CH
SYSTEM CONTROL.
IC1601(1/3)
DO
76
J200
V1 OUT
15
V1
13
M.OUT
1
14
SW1
VIDEO SELECT
VIDEO OUT
VIDEO OUT
VIDEO 1
MONITOR
J201
V2
5
DVD
3
DVD/LD
VIDEO 1
VIDEO IN
VIDEO IN
VIDEO IN
VIDEO 2
IC103
10
SW2
4
SW3
6
SW4
2
SW5
SLATCH
78
STEREO
74
TUNED
73
MUTING
75
RDS-DATA
RDS DATA
53
RDS-INT
RDS CLOCK
52
FM SIG OUT
RDS SIGNAL
43
SW1
90
SW2
89
SW3
88
SW4
87
IN
OUT
IN
COAXIAL
OPTICAL
DIGITAL
ANTENNA
AEP, UK
D204
D203
-
-
D1101
IC201
D1601
SDA
SCL
EEPROM
IC1604
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
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
VOLUME
8
Q107-111
LED
DRIVE
RESET
+3.3V(STBY)
K740P:AEP,UK
K840P:AEP,UK
K840P:AEP,UK
S901
VOLTAGE
SELECTOR
K740P:E/K840P:E MODEL ONLY
g
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