Filter
Top Products
9-1. BLOCK DIAGRAM (SMPS)
100V-240V
-12V
15V
R963
D928
R122
Q912,Q920
PR901
B+ PWM CONTROL
IC401
6.3V
T901
R922,ZD902
D909,Q904
26
12
34
5
IC101
LED1
(70V-170V
6.3V
Q908
Q907
12V
+75V
IC904
Q910
Q909
75V
L906
R929
Q911
OUTPUT
OUTPUTS
B+
VARIABLE)
MOSFET
POWER
VARI.
SMOOTHED
SMOOTHED
&
&
RECTIFIED
RECTIFIED
OUTPUTS
4
CONTROL
H.O.T
FROM
C.K.T
H-SYNC
H-SYNC
Is
O/P
F.B
VCC
MOSFET
POWER
Q901
8
3
6
2
7
IC901
PWM O/P
&
CONTROL
C.K.T
START
AC INPUT
FILTER
LINE
SWITCH
ON/OFF
POWER
C.K.T
DEGAUSSING
VIN
SMOOTHED
SMOOTHED
&
&
RECTIFIED
RECTIFIED
TRANSFORMER
TRANSFORMER
POWER
Page
52
of
59
4V SERIES MANUAL
05.06.2002
file://D:\PC%20AOC\SERVICE%20MANUAL\FSC\154V\154V
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C551.htm