Sony STR-KS2000 - Block Diagram - POWER SUPPLY Section

STR-KS2000
STR-KS2000
1414
6-5. BLOCK DIAGRAM - POWER SUPPLY Section -
3
POWER CONTROL
IC901
D
(AC IN)
MAIN POWER
TRANSFORMER
T901
SUB POWER
TRANSFORMER
T902
F901
D908
ISOLATOR
PC901
B+ SWITCH
Q901
4
VCC
1
OCP
5
OLP
1
POWER CONTROL
IC921
D
4
VCC
6
FB/OLP
8
STARTUP
RECT
D931
D932
ISOLATOR
PC903
SHUNT
REGULATOR
IC931
D922
D910
D905
D907, 914
POWER ON/OFF
CONTROL
Q943, 947
+31.5V
RECT
D943
D915, 916
TH901
Q921
POWER VOLTAGE
CONTROL
Q944, 964
ISOLATOR
D904
PC902
DSP +1.2V
+3.3V
REGULATOR
IC944
LINE
FILTER
L951
LINE
FILTER
L952
RECT
D901
+1.2V
REGULATOR
IC1002
AMP +1.8V
+1.8V
REGULATOR
IC3050
+3.3V
RECT
D942
D. DCON +5V
+5V
REGULATOR
IC942
RECT
D941
+12V
REGULATOR
IC941
+9V
RECT
D944
B+ SWITCH
Q945
B+ SWITCH
Q946
+5V
REGULATOR
IC1712
MIC +3V
A+5V
SHUNT
REGULATOR
IC951
STBY +3.3V
81STOP
87PCONT_1
79PCONT_3
80PCONT_2
SYSTEM CONTROLLER
IC1018(4/4)
FL
FL
VEE
FOR FLUORESCENT
INDICATOR TUBE
DC/DC
CONVERTER
T700
RECT
D700 – 703
OSC
Q801
74
FL DATA
75
FL CLK
68
FL LAT
FLUORESCENT
INDICATOR TUBE DRIVER
IC700
7
DIN
8
CLK
9
STB
FLUORESCENT
INDICATOR
TUBE
FL700
SEG1 – SEG16
14 – 29
GRID1 – GRID12
42 – 31
82
SIRCS IN
ROTARY
ENCODER
RV700
LEVEL SHIFT
IC1651
REMOTE CONTROL
RECEIVER
IC701
MASTER
VOLUME
I/
113-115
A/D 0 – A/D 2
S701 – 706
85
POWER KEY
16
15
V_ENCODER(A)_DOWN
S707
ISOLATOR
PC904
AC DETECT
Q961
+9V
REGULATOR
IC1902
D909
L
SD
POWER
CONTROL
Q962, 963
V_ENCODER(B)_UP
+3.3V
REGULATOR
IC2502
HDMI +5V
+5V
REGULATOR
IC3516
+5V
REGULATOR
IC1012
DMPORT +5V
K
+3.3V
REGULATOR
IC3527
+1.8V
REGULATOR
IC3528
HDMI +1.8V
+3.3V
REGULATOR
IC3526
HDMI +3.3V
34HDMI REG CTL
B+ SWITCH
D972
5VPWR
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