Service manual

CHAPTER 3
3 - 13
COPYRIGHT  2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
q Flat Cable
w Ferrite Core
Figure 3-17
1
2
B. Flat Cable
1. Removing the flat cable
Note: Do not bend or deform the flat cable when removing the flat cable.
1) Remove the document cover.
2) Remove the document glass unit.
3) Remove the seal from the back of the scanner unit, push the wire stopper backward to
remove it from the base frame through the left hole as shown in Figure 3-6.
4) Remove two spacers on both ends of the contact image sensor.
5) Lift the drive unit end part, then remove the drive wire from the gear.
6) Move the drive unit to the center, and disconnect the connector J3.
7) Remove the USB connector PCB, and disconnect the connector J2.
8) Pull to remove the flat cable from the ferrite core.