Sony STR-K995 - Block Diagram - DISPLAY;POWER Section

1616
STR-K995
STR-K995
4-2. BLOCK DIAGRAM – DISPLAY/POWER SECTION –
• R-CH is omitted due to same as L-CH.
• Signal Path
: FM
IN2
8
12
+V OUT2
POWER AMP
IC701
POWER AMP
IC601
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
IN2
8
12
+V OUT2
POWER AMP
IC501
9
NF2
LIMITER
Q501,502
11-V OUT2
BOOSTER
Q503
BOOSTER
Q504
CURRENT
DETECT
Q505,506
VACS
CONTROL
D841
D1001
PROTECT
SWITCH
Q722,723,725
Q793,795
RELAY
DRIVE
Q790
RY791
RELAY
DRIVE
Q710
RY701
D1111
RY601
D1110
D1109
D1108
RELAY
DRIVE
Q612
RY610
D1107
RELAY
DRIVE
Q610
L
R
R
L
R-CH
R-CH
R-CH R-CH
SR-CH
SR-CH
R-CH
SR-CH
SR-CH
R-CH
PHONES
TB001
12
1
PROTECTOR
23
HP_RY
25
FRONT_A_RY/DG51_FB
17
FRONT_B_RY/DG51_FA
22
SW_RY
24
C/REAR/SB_RY
119
VACS CTRL
RV102
ENCODER
3 2
VOL_ENCODER(B)_UP
15
VOL_ENCODER(A)_DOWN
16
POWER_KEY
85
?/1
S100
62
RESET_TRG
81
STOP
109
77
AVCC
D910-913
AC
IN
T903
Q922
Q923
D924
RY901
D915
F901
D914
RELAY
DRIVE
Q901
D105
5V
Q110
D920-923
19
VCC
44
VCC
-7V
REG
3 2
+7V
REG
1 3
AUDIO
+7V
IC801
+5V
REG
2 1
VIDEO
+5V
IC807
IC802
POWER_RY
9
SUB_T
7
D4001
F4001
F4002
RELAY
+B
-5V
REG
2 1
VIDEO
-5V
IC804
D805-808
F1
F2
L
SW
SLSL
C
A
J790
FLUORESCENT
INDICATOR TUBE
FL101
78
FL_LAT
7
DIN
8
CLK
9
6
3
8
4
5
2
1
9
10
STB
70
FL_CLK
71
FL_DATA
14
29
31
SEG1-17
42
32
GRID1-11
F1
F2
FL DRIVE
IC100
IC101
DCAC IN
113
S109-112,115
FUNCTION
KEY
AD_KEY1
114
FUNCTION
KEY
AD_KEY2
115
S101-108
SYSTEM CONTROLLER
IC1907 (2/3)
AF POWER
PROTECT
Q640
AF POWER
PROTECT
Q540
FRONT A
SURROUND
8
HP_DETECT
5V
58
57
X0
X1
X1101
12.5MHz
51
NMI
56
VCC
+3.3V
REG
3 1
IC1904
AUDIO
-7V
+10V
REG
3 1
TUNER
+10V
IC1902
T901
Q921
AC DET
IC1710
RESET TRG
IC1700
IC1111
SYSTEM
RESET
D802
R803
+B
-B
-B
SWITCH
Q691,692
-20V REG
Q801
FL101
-20V
POWER AMP
-B
+5V
REG
3 1
IC1031
PROTECT
DET
2 7
IC691
+5V
+2.5V
REG
5
+2.5V
+3.3V
REG
2
4
IC1901
+3.3V
+5V
REG
3 1
IC1001
AUDIO
+5V
+7V
REG
2 1
IC4001
+5V
REG
4 5
IC3516
TX5V_PWR
41
IC3519(1/2)
+3.3V
REG
4 2
IC3526
+3.3V
REG
4 2
IC3527
+1.8V
REG
IC3528
+4.1V
REG
2 1
IC4100
HDMI
+5V
3.3V
1.8V
+5V
REG
4 2
IC1906
DMPORT
+5V
94
HDMI_CTRL
13
BRIDGABLE_RY
SPEAKERS
(IMPEDANCE USE 6-16Ω)
MASTER
VOLUME
RV101
ENCODER
3 2
INPUT_ENCODER_B
21
INPUT_ENCODER_A
20
INPUT
SELECTOR
8
RESET
55
INIT
1 2
5 1
IC2000
AMP
+3.3V
(STBY)
MAIN
SECTION
CENTER
(Page 15)
RELAY
DRIVE
Q611
RY710
RELAY
DRIVE
Q560
RY560
L
RR-CH
TM602
FRONT B
TM604
J2000
AUTO CAL MIC
82 SIRCS IN
REMOTE
CONTROL
RECEIVER
2
IC103
AUDIO OUT
J309
1
3
1
5
3
7
1
SUB WOOFER
RELAY
DRIVE
Q809
RY801
VCC
SW1
1 2
4
1
2
REG
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com