CHAPTER 3 DISASSEMBLY & REASSEMBLY
3. Front Unit PCB
1) Remove the front unit.
2) Remove the front cover.
3) Remove the open/close shaft
{
1
while
holding down the coil spring
{
2
. Then
remove the cable
{
3
from the connector
and unhook the 4 pairs of fitting parts
{
4
to remove the front unit PCB
{
5
.
Note:
Hold down the coil spring to prevent it
from shooting off. There are sensors
and LEDs mounted on the back side
of the PCB.
Figure 3-203
Notes on assembling
In order to prevent the internal cables
from becoming pinched during assembly,
ensure that they do not protrude from
the cable guide, align the positions of
the front cover and the joint part on the
main body side, and push them together.
There should not be any gap.
Figure 3-204
Notes on assembling
Mount the front unit PCB before
attaching the open/close shaft.
When attaching the open/close shaft,
insert both ends of the shaft into the
holes on the base and then attach the
coil spring.
3-6
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CANON ELECTRONICS INC. 2011 CANON DR-C125 FIRST EDITION