![Sony STR-KS1200 Service Manual Download Page 14](http://html.mh-extra.com/html/sony/str-ks1200/str-ks1200_service-manual_417240014.webp)
STR-KS1200
STR-KS1200
14
14
5-5. BLOCK DIAGRAM - POWER SUPPLY Section -
POWER CONTROL
IC901
(AC IN)
MAIN POWER
TRANSFORMER
T901
SUB POWER
TRANSFORMER
T902
F901
D908
ISOLATOR
PC901
B+ SWITCH
Q901
POWER CONTROL
IC921
RECT
D931
D932
ISOLATOR
PC903
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
LINE
FILTER
L951
LINE
FILTER
L952
RECT
D901
AMP +1.8V
+3.3V
RECT
D942
D. DCON +5V
RECT
D941
+9V
RECT
D944
B+ SWITCH
Q945
B+ SWITCH
Q946
MIC +3V
A+5V
STBY +3.3V
FL
FL
VEE
FOR FLUORESCENT
INDICATOR TUBE
DC/DC
CONVERTER
T700
RECT
D700 – 703
OSC
Q801
FLUORESCENT
INDICATOR TUBE DRIVER
IC700
FLUORESCENT
INDICATOR
TUBE
FL700
ROTARY
ENCODER
RV700
MASTER
VOLUME
ISOLATOR
PC904
AC DETECT
Q961
D909
SD
POWER
CONTROL
Q962, 963
5V
HDMI +5V
HDMI +1.8V
HDMI +3.3V
B+ SWITCH
D972
5VPWR
LED DRIVE
Q701 – 706
D720 – 724
(PANEL INDICATOR)
LED DRIVE
Q709
D726
LED DRIVE
Q708
D725
TV
LED DRIVE
Q707
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
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299