Canon PC920 - Page 366

A-11 COPYRIGHT © 1999 CANON INC. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
DC Controller Circuit Diagram (5/8)
1
2
R145
+
Q131
3
2
1
R158
R149
R140
R139
E0_DT
R148
Q107
+5V
-
+
2
3
12
15
34
VSS
IN A
IN B VDD
OUT X
8
4
R275
ZER_CRS_EDGE
+5V
R279
R293
VR105
2
BL_VR
31
+5V
R278
R294
VR104
2
RGAD_VR
31
+5V
R382
VR107
2
OP_VR
31
+5V
R292
VR106
2
LS_VR
31
+5V
R144
+5V
+5V
C183
C181
C126
C167
+5V
Q153
ZER_CRS_LEVEL
D183
R150
R154
R271
ZER_CRS
SW101
(AB/inch type only)
R143
4
1
CP23
CPGND1
1
D_L_2
D_L_1
3
2
1
Q126
JP101
JP102
3
E0_BUCK
2
Q125
3
1
+24VU
D118
21
12
C123