Canon EOS 7 Service Manual page 84

Batteries loaded
Initialization
Standby
SW-1 ON or
NO
metering active?
YES
AE metering calculation
OFF
SW-2
ON
BC
Mirror goes up
M1 powered
EMD stopped down
NO
Mirror up?
YES
M1 braked
Fig. 2-20 Overall Operation and Basic Sequence (AI Servo AF)
OFF
SW-1
ON
AF calculation
Lens driven
Mg3-1 & Mg3-2 powered
Date imprinted
Film advance
begins
Mg3-1 & Mg3-2
powered
2-17
Part 2: Technical Information
Mg3-1 OFF
Exposure time controlled
Mg3-2 OFF
BC
Mirror down
M1 powered
begins
EMD at maximum aperture
NO
Mirror down?
YES
M1 braked
M1 powered
NO
Film advance
completed?
YES
M1 Duty control
and braking
OFF
SW-2
ON
Mirror up
begins
M1 powered
EMD stopped down
NO Mirror up
completed?
YES
M1 braked
Lens driven
AE metering calculation
AF calculation
Lens driven
AF calculation
Lens driven