Canon External 2/3 Hole Puncher-B1, Service Manual

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Chapter 3
3-5
3.3.2 LED PCB
3.3.2.1 Removing the LED PCB
0023-7158
1) Remove the rear cover.
2) Remove the right guide unit.
3) Remove the upper cover.
4) Remove the punch unit.
5) Remove the screw [1], and remove the LED PCB [2].
F-3-23
3.3.3 Photosensor PCB
3.3.3.1 Removing the Photosensor PCB
0023-7161
1) Remove the rear cover.
2) Remove the upper cover.
3) Remove the screw [1].
4) Disconnect the connector [2] and the remove the Photosensor PCB [3].
F-3-24
3.3.4 Scrap Full Detector PCB
3.3.4.1 Removing the Scrap Full Detector PCB
0023-7165
1) Remove the right guide unit.
2) Remove the screw [1], disconnect the connector [2], and remove the scrap
full detector PCB unit [3].
F-3-25
3.3.5 Punch Controller PCB
3.3.5.1 Removing the Punch Controller PCB
0023-7175
1) Remove the rear cover.
2) Remove the two screws [1], disconnect seven connectors [2], and remove
the punch controller PCB [3].
F-3-26
after the replacing the punch controller PCB, perform the
"Maintenance> Adjustment> Adjustment at Time of Parts
Replacement> Registering the Number of Punch Holes".