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SA-WSRH1/WSRH10/SS-CT7000/TS7000/TS7001
8
8
SA-WSRH1/WSRH10/SS-CT7000/TS7000/TS7001
4-3. 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/SYNC
5 FB/OLP
1
POWER CONTROL
IC921
DRAIN
4 VCC
6 FB/OLP
8 STARTUP
RECT
D931
D931
D932
ISOLATOR
PC903
SHUNT
REGULATOR
IC931
D922
D1000
D110
D905
POWER ON/OFF
CONTROL
Q943, 947
AMP +30.5V
RECT
D943
D943
D1101
BACK UP 3.3V
E4V
EVR 3.3V
20
AC_CUT
12
RESET
43
P_CONT1
SYSTEM
CONTROLLER
IC1001 (3/3)
D916, 917
TH901
B+ SWITCH
Q921
ISOLATOR
PC902
DSP +1.8V
+3.3V
REGULATOR
IC943
85 POW_LED
LED DRIVE
Q1241
STBY_LED
(RED)
(GREEN)
84
D1240
LED DRIVE
Q1240
POWER
LINE FILTER
LF901,902
RECT
D901
D901
+1.8V
REGULATOR
IC1111
AMP +1.8V
+1.8V
REGULATOR
IC303
3.3V
RECT
D942
D942
A+5V
+3.3V
REGULATOR
IC1290
+6V
44
P_CONT2
RECT
D941
D941
+12V
REGULATOR
IC941
+9V
REGULATOR
IC1291
AMP+12V
D +9V
VOLTAGE
DETECT
IC1100
RESET
SWITCH
Q1100
FAN MOTOR
DRIVE
Q551 – 553
M300
(FAN)
(FAN)
M
AMP+12V
B
OTW
SHUNT
REGULATOR
IC951
(Page 7)
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