Canon PC920 Service Manual page 365

Service manual
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DC Controller Circuit Diagram (4/8)
KEY<7..0>
8
0
1
2
3
4
5
6
7
DIGIT<4..0>
5
0
1
2
3
4
SEG<7..0>
8
0
3
1
3
2
3
3
3
4
3
5
3
6
3
7
3
A-10
R134
R133
R132
R131
R130
R129
R128
R127
+5V
R236
Q121
R138
+5V
R239
Q124
R137
+5V
R238
Q123
R136
+5V
R237
Q122
R135
+5V
R362
Q202
R360
2
SEG0*
Q113
R240
R243
1
2
SEG1*
Q114
1
2
SEG2*
Q115
1
2
SEG3*
Q116
1
2
SEG4*
Q117
1
2
SEG5*
Q118
1
2
SEG6*
Q119
1
2
SEG7*
Q120
1
8
0
KR0
1
KR1
2
KR2
3
KR3
4
KR4
5
KR5
6
KR6
7
KR7
DIG0
DIG1
DIG2
DIG3
DIG4
R242
R241
R358
2
1
2
HEAT0
D102
3
1
2
HEAT1
D113
2
SERVICE
1
2
D218
7
1
2
SFPD
D109
3
1
2
DPD
D108
5
CDP
1
2
D106
KR6
1
2
DIG0
[CPM0]
D115
KR6
1
2
DIG1
[CPM1]
D114
D114
KR2
DIG3
1
2
[SIZE0]
D103
D103
KR5
1
2
DIG0
D190
[SIZE1]
D190
KR3
DIG4
[VOL1]
D214
D214
COPYRIGHT © 1999 CANON INC.
CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
10CPM 12/13CPM
AB/inch
inch
120V
220/240V

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