Epson Perfection 1270 - Page 39

EPSON Perfection 1670 Photo/Perfection 1270 Revision B
APPENDIX Circuit Diagrams 39
Main2/6
A
A
B
B
C
C
D
D
E
E
4 4
3 3
2 2
1 1
sleep switch
15V
VCC5VR
VCC5V
A12V
C18
1U/25V/0805
Q7
2N3904
1
32
+
C98
10uF/25V/105C25V
12
R92
1.2KF
R20
10K
L22
220U K
D3
SS12
1 2
+
C112
105C
100U 25V
12
D2
P6SMBJ16A
A K
R93
3.65KF
R91 0.33
+
C99
105C
100U 25V
12
C91
0.1U M
F1 FUSE
L9
Z1000/1A
J5
DCJACK/RT/SKT
3
2
1
L8 Z600/2A
C114
470pF/16V
C90
0.1uF/25V
R21 1K
C17
0.1uF/25V
L12
Z1000/0.3A
U11
KA78M12R
3
2
1
VO
GND
VI
U10 MC34063ECD
1
2
3
4
8
7
6
5
SWC
SWE
TC
GND
DRC
Ipk
VCC
CII
+
C92
10uF/25V/105C25V
12
C96
0.1uF/25V
Q4
SI2303DS
D
G
S
C94
0.1uF/25V
C95
0.1uF/25V
C39
10U Z
R19
1M
U7
AMS1117-5.0
3
1
2
IN
GND
OUT
R75 47J 1W
C77
0.1U M