
4-2. Power Supply Block Diagram
Fig. 3-4-2
RECTIFIER
SMOOTHIN
RECTIFIER
SMOOTHING
AC FILTER
D801-04, C805
C801-04
T801
AC100-120V
50/60Hz
MOS-FET
Q801
RECTIFIER
SMOOTHING
D827, C826
Q822
E+6V
E+5V
VDD+5V
PWON
VDD+3.3V
VDD+2.5V
VCC+9V
M+8V
D836
D829
VKK-34V
VCC-9V
F+F-
D838-40, R845-46
Q823-24
Q825-26, D832-34
D806, C809
CONTROL
IC
Q802
Q803
Q804
PHOTO
COUPLER
PHOTO
COUPLER
Q821
Q830
ERROR
AMP
RECTIFIER
SMOOTHING
D826, C825
RECTIFIER
SMOOTHING
D825, C824
ON/OFF
CHANGE
9V SW
Q828
RECTIFIER
SMOOTHING
D822-23, C822-23
3.3V REG/SW
Q827
RECTIFIER
SMOOTHING
D821, C821
T802
TRANS
5V REG/SW
Q829, D830-31
2.5V REG/SW
-34V REG/SW
-9V REG
F+F- SW
3-9
Summary of Contents for DD-8020
Page 2: ... ...
Page 6: ... ...
Page 30: ...2 10 ...
Page 34: ...3 4 ...
Page 39: ...Fig 3 4 5 4 3 3 Front Display Power Switch Block Diagram 3 12 3 11 FWD REV ...
Page 41: ...Fig 3 4 7 4 4 2 Logical System Block Diagram 3 16 3 15 ...
Page 44: ...Fig 3 5 3 5 2 Front Display Power Switch Circuit Diagram 3 22 3 21 ...
Page 47: ...Fig 3 5 5 5 3 2 Main Circuit Diagram 3 25 3 26 3 27 3 28 ...
Page 48: ...5 4 Output Circuit Diagram Fig 3 5 6 3 30 3 31 3 32 3 29 ...
Page 50: ...3 34 5 5 Motor System Circuit Diagram Fig 3 5 8 ...
Page 52: ...3 36 ...
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