Canon PC720 Service Manual - Page 46

Canon PC720 Manual

Get Canon PC720 PDF manuals and user guides View all Canon PC720 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 46 highlights

®OPERATIONS AND TIMING 2. Outputs from the DC Controller (2/2) DC controller PCB Pick-up clutch solenoid SL1 Registration clutch solenoid SL2 Lens drive solenoid SL3 Cassette/Multifeeder pick-up switching solenoid SL4 (PC750/PC770) Scanner/lens drive motor Side blank exposure lamp (rear) J109-3 -4 PUSLD* t +24V when '0', pick-up clutch solenoid turns on. J109-5 6 RGSLD* when '0', registration clutch t +24V solenoid turns on. J109-1 -2 LNSLD* t +24V when '0', lens drive solenoid turns on. J109-7 -8 MFSLD* when '0', cassette/multifeeder t +24V pick-up switching solenoid turns on. J110-1 -2 -3 -4 -5 -6 SC COMB SC_B* SC_B during operation, SC_COMA alternates between '0' and '1'. SC_A* (See p. 3-16 for details.) SC A J106-1 SB_LP* when '0', blank exposure lamp on. Side blank exposure lamp (front) '+24V *Negative logic. 3 - 6 Figure 3-106 COPYRIGHT © 1994 CANON INC. CANON PC720/74017501170 REVD AUG.1994 PAINTEDIN JAPAN EMPRIMEAU JAPON)

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
  • 113
  • 114
  • 115
  • 116
  • 117
  • 118
  • 119
  • 120
  • 121
  • 122
  • 123
  • 124
  • 125
  • 126
  • 127
  • 128
  • 129
  • 130
  • 131
  • 132
  • 133
  • 134
  • 135
  • 136
  • 137
  • 138
  • 139
  • 140
  • 141
  • 142
  • 143
  • 144
  • 145
  • 146
  • 147
  • 148
  • 149
  • 150
  • 151
  • 152
  • 153
  • 154
  • 155
  • 156
  • 157
  • 158
  • 159
  • 160
  • 161
  • 162
  • 163
  • 164
  • 165
  • 166
  • 167
  • 168
  • 169
  • 170
  • 171
  • 172
  • 173
  • 174
  • 175
  • 176
  • 177
  • 178
  • 179
  • 180
  • 181
  • 182
  • 183
  • 184
  • 185
  • 186
  • 187
  • 188
  • 189
  • 190
  • 191
  • 192
  • 193
  • 194
  • 195
  • 196
  • 197
  • 198
  • 199
  • 200
®OPERATIONS
AND
TIMING
2.
Outputs
from
the
DC
Controller
(2/2)
DC
controller
PCB
Pick-up
clutch
solenoid
Registration
clutch
solenoid
Lens
drive
solenoid
Cassette/Multifeeder
pick-up
switching
solenoid
(PC750/PC770)
Scanner/lens
drive
motor
Side
blank
exposure
lamp
(rear)
Side
blank
exposure
lamp
(front)
SL1
J109-3
-4
SL2
PUSLD*
t
+24V
when
'0',
pick-up
clutch
solenoid
turns
on.
J109-5
RGSLD*
6
SL3
J109-1
SL4
-2
J109-7
-8
J110-1
-2
-3
-4
t
+24V
when
'0',
registration
clutch
solenoid
turns
on.
LNSLD*
t
+24V
MFSLD*
t
+24V
when
'0',
lens
drive
solenoid
turns
on.
when
'0',
cassette/multifeeder
pick-up
switching
solenoid
turns
on.
SC
COMB
SC_B*
SC_B
SC_COMA
SC_A*
SC
A
-5
-6
J106-1
SB_LP*
'+24V
during
operation,
alternates
between
'0'
and
'1'.
(See
p.
3-16
for
details.)
when
'0',
blank
exposure
lamp
on.
*Negative
logic.
Figure
3-106
3
-
6
COPYRIGHT
©
1994
CANON
INC.
CANON
PC720/74017501170
REVD
AUG.1994
PAINTED
IN
JAPAN
EMPRIME
AU
JAPON)