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4-2. Power Supply Block Diagram
D803, C805
RECTIFIER
SMOOTHIN
C801-C804
T801
AC FILTER
Q801
MOS-FET
D806, C809
RECTIFIER
SMOOTHING
Q802
CONTROL
IC
AC100-120V
50/60Hz
D824, Q833
T802
TRANS
SMOOTHING
D821, C821
SMOOTHING
D822, C822-C823
SMOOTHING
D825, C824
SMOOTHING
D826, C825
SMOOTHING
D827, C826
SMOOTHING
Q803
Q821
PHOTO
ERROR
COUPLER
AMP
Q804
Q830
PHOTO
ON/OFF
COUPLER
CHANGE
RECTIFIER
RECTIFIER
Q827
5V REG/SW
Q828
RECTIFIER
3.3V REG/SW
Q823, Q824
RECTIFIER
9V SW
Q825, Q826, D832-D835
RECTIFIER
-34V REG/SW
Q822
RECTIFIER
F+F- SW
E-9V
E+5V
D829
VDD+5V
PWON
VDD+3.3V
D830, D831
VDD+2.5V
E+9V
D836
M+8V
VKK-34V
F+F-
Fig. 3-4-2
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