Main Pcb Circuit Diagram - Canon CANOSCAN N1220U Service Manual

V. MAIN PCB CIRCUIT DIAGRAM (CanoScan N1220U)
COPYRIGHT 2000 CANON INC.
CMODE
91
B LAMP
60
G LAMP
59
R LAMP
58
TEST
96
HI VREF
6
MID VREF
4
LO VREF
2
VBANDGAP
1
B OS
7
G OS
5
R OS
3
TR1
73
TR2
74
PHI1
75
PHI2
76
RS
77
CP1
78
CP2
79
VCC
20
VCC
6
VCC
1
CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
NC
NC
NC
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
VDRAM
VDRAM
VDRAM
VD
VD
VD
VD
VD
VREG
AGND
100
AGND
8
VA
VA
GND
40
GND
35
GND
21
APPENDIX
(1/3)
92
89
88
98
87
81
69
61
57
44
31
17
43
30
16
97
86
68
62
56
82
99
9
A - 7