Canon C12-8453, Service Manual

Page: 119 / 271

<D
ISASSEMBLY
P
ROCEDURE
>
(1) Removing the shutter unit
1. Remove the shutter flex from the
positioning dowels.
2. Remove the two screws.
(2) Removing the MD flex unit
1. Remove the two M2 motor lead wires on
the back of the wing. (Fig. 3-23)
2. Remove the main flex’s connector.
3. Remove the two screws.
(3) Removing the main flex unit
1. On the main flex, disconnect the DX, TTL,
and AF flexes from the connectors.
2. Desolder the six lead wires on the left side
of the AF flex connector. (Fig. 3-24)
3. Desolder the prongs from the SI flex.
4. Remove the DX flex’s tact switch from the
front panel’s positioning dowel.
5. Remove the two screws on the SPC ground
plate.
6. Remove the two screws on the main flex.
<R
EASSEMBLY
N
OTES
>
1. When replacing the MD flex, make sure
the short pads are open as shown on the
right.
Part 3: Repair Information
3-15
Fig. 3-22 Shutter flex
Shutter flex positioning dowels
Fig. 3-23 M2 motor lead wires
RSFD2 (Black)
FSRD2 (Red)
M2 motor
Fig. 3-25 MD flex pads
Short pads open
Fig. 3-24 Main flex lead wires
CMSP1 (Green)
D-GND (Black)
D-GND (Black)
CMSP2 (Gray)
POCH1 (Purple)
POCH2 (White)