Block Diagram - Display/Power Section - Sony STR-K995 Service Manual

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