Read Sony HT-SS380 / STR-KS380 Service Manual online
STR-KS380
STR-KS380
13
13
5-5. BLOCK DIAGRAM - SMPS 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
D931
D932
SHUNT
REGULATOR
IC931
D922
D910
D905
D906, 907
POWER ON/OFF
CONTROL
Q943, 947
+31.5V
RECT
D943
D914, 915
TH901
Q921
POWER VOLTAGE
CONTROL
Q981, 982
ISOLATOR
PC902
LF901
LINE
FILTER
LF902
LINE
FILTER
RECT
D901
AMP +1.8V
+1.8V
REGULATOR
IC2003
RECT
D944
RECT
D942
+5V
+6.3V
REGULATOR
IC4500
RECT
D941
+12V
REGULATOR
IC941
IC3509
A +9V
B+ SWITCH
Q946
SHUNT
REGULATOR
IC951
73
PCONT_1
87
PCONT_3_SAIR
75
PCONT_2
SYSTEM CONTROLLER
IC1008 (4/4)
F1
F2
F2
VEE
FOR FLUORESCENT
INDICATOR TUBE
T700
DC/DC
CONVERTER
RECT
D726 – 727
OSC
Q701
6 FL_D_OUT
7 FL_CLK
5 FL_LAT
7 FL_CLK
5 FL_LAT
FLUORESCENT
INDICATOR TUBE DRIVER
IC700
7
DIN
8
CLK
9
STB
FL700
FLUORESCENT
INDICATOR
TUBE
SEG1 – SEG16,
SEG17
14 – 29,31
GRID1 – GRID12
42 – 32
79 SIRCS_IN
ROTARY
ENCODER
ARV700
REMOTE CONTROL
RECEIVER
IC701
MASTER
VOLUME
VOLUME
I/1
80 POWER KEY
45 VOL JOG
S755
+9V
REGULATOR
IC1005
+5V
REGULATOR
IC1900
D909
L
SD
AMP +12V
HDMI +5V
+5V
REGULATOR
IC3510
K
+1.2V
REGULATOR
IC3528
E +4V
+3.3V
REGULATOR
IC943
D +3.3V
HDMI +1.2
86
P_CONT_HDMI
B+ SWITCH
D3515
D3514
5VPWR
D1003
ISOLATOR
PC903
D725
WHITE
LED
LED DRIVE
Q700
1 SW1
41 AD KEY
S700
S701
SOUND
FIELD
S702
INPUT
SELECTOR +
HDMI +3.3V
+3.3V
REGULATOR
IC3526
+1.1V
+1.1V
REGULATOR
IC1001
+5V
REGULATOR
IC1706
+5V
HDMI +1.8V
+1.8V
REGULATOR
IC3523
Q
+5V
REGULATOR
IC1004
(PAGE 10)
(PAGE 12)
(PAGE 10)
+6.4V
REGULATOR
INPUT
SELECTOR -
US, CND
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