Read Sony HT-DDWG700 / STR-KG700 Service Manual online
STR-KG700
STR-KG700
17
4-2. BLOCK DIAGRAM – DISPLAY/POWER SECTION –
(Page 16)
SECTION
MAIN
+3.3V(STBY)
VOLUME
MASTER
IMPEDANCE USE 6-16
SPEAKERS
+5V
-B
POWER AMP
+B
POWER AMP
-20V
FL101
R932
-7V
AUDIO
IC1904
AVCC
IC101
BUFFER
HP
DETECT
5
IC565(2/2)
FRONT
2
IC565(1/2)
IC1101(3/3)
SYSTEM CONTROLLER
A/D1
KEY
FUNCTION
S114-119
IC100
FL DISPLAY
DRIVER
F1
SEG1-16
14-29
STB
CLK
DIN
FL_LA
T
FL_CLK
FL_DA
TA
FL101
INDICATOR TUBE
FLUORESCENT
J790
A
F2
F1
24MHz
X1101
X1
X0
+B
RELAY
+7V
AUDIO
VCC3
VCC5
VCC5
D990
D991
T902
D950-953
IC103
FUSE DETECT
SIRCS
STOP
RSTX
S152
VACS CTRL
FRONT_A_R
Y
C/SW/REAR/SB_R
Y
H
P
RY
PROTECT
OR
TB602(1/2)
R-CH
R-CH
L
RY365
D327
Q703
BOOSTER
-V OUT1
NF2
IC701
POWER AMP
+V OUT1
6 IN1
R-CH is omitted due to same as L-CH.
Signal Path
Signal Path
: FM
2
5
3
Q701,702
LIMITER
Q704
BOOSTER
Q711,712
CURRENT
DETECT
Q720
AF POWER
PROTECT
Q803
BOOSTER
-V OUT1
NF1
IC801
POWER AMP
+V OUT1
6 IN1
2
5
3
Q801,802
LIMITER
Q804
BOOSTER
Q811,812
CURRENT
DETECT
Q820
AF POWER
PROTECT
Q653
BOOSTER
-V OUT2
NF2
IC601
POWER AMP
+V OUT2
8 IN2
12
9
11
Q651,652
LIMITER
Q654
BOOSTER
Q661,662
CURRENT
DETECT
Q670
AF POWER
PROTECT
Q603
BOOSTER
-V OUT1
NF1
+V OUT1
6 IN1
2
5
3
Q601,602
LIMITER
Q604
BOOSTER
Q611,612
CURRENT
DETECT
Q620
AF POWER
PROTECT
SW
C
SL
L
R
Q365
RELAY
DRIVE
Q320,321,325
PROTECT
SWITCH
PHONES
F2
GRID1-12
42-31
7 8 9
75 74 76
62
66
67
61
45
55
RY375
Q375
RELAY
DRIVE
82
83
39
A/D2
KEY
FUNCTION
S103,104
40
VOL_EN(B)
ENCODER
RV102
64
VOL_EN(A)
65
3 2
SELECTOR
INPUT
BNC_B
ENCODER
RV101
32
BNC_A
31
3 2
POWER KEY
56
POWER
R
Y
58
RY901
Q901
RELAY
DRIVE
48
77
23
84
35
54
63
36
AVRH
AC
VOLTAGE SELECTOR
IN
Q990
AC DET
+3.3V
REG
3
1
IC1111
RESET
1
2
REMOTE
CONTROL
RECEIVER
1
IC1031
+5V
REG
3
1
+9V
IC1902
+9V
REG
2
1
T901
D804-807
+5V
AUDIO
IC1001
+5V
REG
3
1
IC352
-7V
REG
2
1
IC350
+7V
REG
2
1
D910-913
Q930
-20V REG
Q500,501
-B
SWITCH
-B
+B
SURROUND
TB605(1/2)
R-CH
L
RY355
R
Q355
RELAY
DRIVE
CENTER
TB602(2/2)
SUB WOOFER
TB605(2/2)
RY360
Q360
RELAY
DRIVE
D725
D675
D4001
+5.8V
REG
IC4100
1
2
+3.3V
REG
IC1903
+3.3V
REG
IC1905
+5V
REG
IC1906
+3.3V
+1.2V
REG
IC1002
+1.2V
3
4
VBUS +5V
D921
7
1
F901
S901
(Page 16)
MAIN SECTION
E
RESET
240V
220V
120V
1
2
3
Ver. 1.3
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