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4-2. Power Supply Block Diagram
D801-04, C805
RECTIFIER
SMOOTHIN
C801-04
T801
AC FILTER
Q801
MOS-FET
D806, C809
RECTIFIER
SMOOTHING
Q802
CONTROL
IC
AC100-120V
50/60Hz
T802
TRANS
D821, C821
RECTIFIER
SMOOTHING
D822-23, C822-23
RECTIFIER
SMOOTHING
D825, C824
RECTIFIER
SMOOTHING
D826, C825
RECTIFIER
SMOOTHING
D827, C826
RECTIFIER
SMOOTHING
Q803
Q821
PHOTO
ERROR
COUPLER
AMP
Q804
Q830
PHOTO
ON/OFF
COUPLER
CHANGE
Q827
5V REG/SW
Q828
3.3V REG/SW
Q829, D830-31
2.5V REG/SW
Q823-24
9V SW
Q825-26, D832-34
-34V REG/SW
Q822
F+F- SW
3-9
E+6V
E+5V
D829
VDD+5V
PWON
VDD+3.3V
VDD+2.5V
VCC+9V
D836
M+8V
VKK-34V
D838-40, R845-46
-9V REG
VCC-9V
F+F-
Fig. 3-4-2
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