Block Diagram - Display/Power Section - Sony STR-K995 Service Manual
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Also See for STR-K995:
- Operating instructions manual (80 pages) ,
- Quick setup manual (2 pages)
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STR-K995
Q Q
4-2. BLOCK DIAGRAM – DISPLAY/POWER SECTION –
3 7 6 3 1 5 1 5 0
SW
IC701
POWER AMP
+V OUT2
12
Q701,702
LIMITER
L
8
IN2
NF2
9
-V OUT2
11
MAIN
A
IC601
SECTION
POWER AMP
(Page 15)
+V OUT2
12
Q651,652
LIMITER
SL
SL
8
IN2
NF2
9
-V OUT2
11
IC501
POWER AMP
+V OUT2
12
Q501,502
LIMITER
C
8
IN2
NF2
9
-V OUT2
11
T E
L
1 3 9 4 2 2 9 6 5 1 3
J2000
IC2000
AMP
AUTO CAL MIC
5
1
58
X0
X1101
12.5MHz
57
X1
IC103
REMOTE
CONTROL
2
82 SIRCS IN
RECEIVER
78
70 71
5V
w w w
STR-K995
Q703
BOOSTER
Q740
AF POWER
Q705,706
PROTECT
Q704
CURRENT
R-CH
BOOSTER
DETECT
R-CH
R-CH
Q653
BOOSTER
Q640
AF POWER
Q655,656
PROTECT
Q654
SR-CH
CURRENT
BOOSTER
DETECT
SR-CH
Q503
BOOSTER
Q540
AF POWER
Q505,506
PROTECT
Q504
CURRENT
BOOSTER
DETECT
SR-CH
R-CH
D1107
Q722,723,725
D841
Q793,795
VACS
D1108
PROTECT
CONTROL
D1109
SWITCH
D1110
D1111
113
12
119
22
IC1907 (2/3)
SYSTEM CONTROLLER
IC101
IC100
FL DRIVE
4
SEG1-17
14
5
x
a o
7 DIN
6
29
FL101
2
31
FLUORESCENT
F1
3
8 CLK
1
INDICATOR TUBE
5V
F2
STB
8
9
42
.
i
9
GRID1-11
32
D105
SW1
10
1
Q110
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J309
AUDIO OUT
SUB WOOFER
RY560
Q560
RELAY
DRIVE
TM602
1
L
RY710
FRONT B
3
Q611
R-CH
R
RELAY
DRIVE
TB001
1
L
FRONT A
5
RY701
R-CH
R
Q710
RELAY
DRIVE
SPEAKERS
(IMPEDANCE USE 6-16Ω)
3
L
SURROUND
RY601
7
SR-CH
R
Q610
RELAY
DRIVE
TM604
1
CENTER
RY610
Q612
RELAY
DRIVE
Q
Q
3
7
J790
R-CH
PHONES
RY791
Q790
RELAY
DRIVE
17
25
24
23
8
13
94
AVCC
109
VCC
77
VCC
56
NMI
51
VCC
44
VCC
19
RESET_TRG
62
INIT
55
STOP
81
SUB_T 7
POWER_RY 9
15 16
21 20
114
115
85
3
2
3
2
FUNCTION
FUNCTION
S100
ENCODER
ENCODER
KEY
KEY
?/1
RV102
RV101
S109-112,115
S101-108
u 1 6 3
y
MASTER
INPUT
VOLUME
SELECTOR
16
16
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2
4
8
9
9
IC807
+5V
VIDEO
2
1
REG
+5V
IC1902
D920-923
TUNER
+10V
3
1
+10V
REG
RELAY
+B
IC801
+7V
AUDIO
1
3
REG
+7V
IC1001
AUDIO
+5V
3
1
+5V
REG
IC802
AUDIO
-7V
3
2
-7V
REG
IC804
IC1906
-5V
VIDEO
2
1
DMPORT
+5V
-5V
REG
4
2
+5V
REG
IC3516
IC4001
HDMI
+5V
+7V
4
5
2
1
+5V
REG
REG
IC3519(1/2)
TX5V_PWR 41
IC3526
IC4100
+3.3V
+4.1V
3.3V
4
2
2
1
REG
REG
D802
+B
IC3528
IC3527
-B
+1.8V
+3.3V
1.8V
4
2
REG
REG
R803
FL101
Q801
-20V
-20V REG
Q691,692
POWER AMP
-B
-B
SWITCH
IC691
6
3
1
5
1
5
0
8
9
PROTECT
2
7
DET
RY801
Q809
RELAY
DRIVE
IC1031
+5V
+5V
3
1
REG
IC1901
+3.3V
+3.3V
2
REG
4
+2.5V
+2.5V
5
REG
D1001
+3.3V
IC1904
(STBY)
+3.3V
3
1
REG
IC1710
RESET TRG
1
2
IC1700
SYSTEM
IC1111
1
RESET
4
2
1
RESET
2
Q921
AC DET
m
c o
.
• R-CH is omitted due to same as L-CH.
• Signal Path
: FM
2
8
9
9
T901
F4001
D4001
F4002
2
4
9
8
2
9
9
F1
F2
D805-808
Q922
F901
REG
D924
Q923
AC
IN
D910-913
T903
D914
D915
RY901
Q901
RELAY
DRIVE
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