Canon EOS 20D Service Manual page 137

Repair Information
5) Sensor flex ass'y removal
(1) Unsolder the comb part.
(2) Remove the screw for the TTL sensor.
(3) Remove the sensor flex carefully without cutting the flex attached with
double-sided tape.
<Reassembly Cautions>
1) Lead wire handling
Attach the 2 lead wires with Diabond.
Fix temporarily
2) Assembly of shutter ass'y
(1) Turn the gear to locate the mirror lever at the center of the mirror box.
As shown below, when the gear is not centrally located, turn the
part of the gear that is not intermeshed using a tip of tweezers.
Unsolder
Fig. 094
Fit into the groove.
Fig. 096
Positioned
center
Fig. 097
Fig. 098 Fig. 099
30
Remove
Fig. 095
Apply Diabond.