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BLOCK DIAGRAM (SMPS)
Degausses
C.K.T
Rectified
Smoothed
&
VIN
T901
Power
Transformer
Output
Rectified
&
Smoothed
14V
Q909
Q918
Q907
Q908
Q921
6.3V
Ry901
Start
C.K.T
Q904,Q906,
Q911,Q917
Rectified
&
Smoothed
VC
8
3
6
2
Control
&
PWM
Ic901
F.B
O/P
Q901
Power
Mosfet
L906
VARI
Transformer
Power
On/Of
Switch
R929
IS
LIN
FILTER
Q911
Power
Mosfet
B+ PWM
Ic401
Q912,Q920
From
H.O.T
H-SYN
Control
H-SYN
C.K.T
AC
90V~264V
12
38
26
Ic101
Output
Rectified
&
Smoothed
(60V~170V)
Variable
B+
12V
78V
-12V
Q913
From Ic101
6.3V
V
ie
w
Son
ic C
o
rpo
rat
ion
Confid
ent
ial
– Do Not Cop
y
E70
f-5_E70
fB-5
_E70
fS
B-5
92