Sensor Switches - Canon EOS 7 Service Manual

Part 2: Technical Information
2.2 S
ENSOR
No. Code
1 BP SW
2 CMSP1,,2,3SW
3 MIF SW
4 SHBUSY SW
5 POPEND SW
6 POPCTR SW
7 X SW
8 CN2 SW
9 DX1-5 SW
10 PTIN SW
S
WITCHES
Name
Camera back
open/close switch
Shutter-cocking phase
switch
Lens switch
External flash detection Detects the attachment/detachment of
switch
Pop-up detection switch Turns ON after the built-in flash pops
Pop-up control switch
X switch
2nd-curtain switch
DX code switch
Film cartridge detection Detects whether or not a film cartridge
switch
Function
Becomes Low when the camera back is
open.
Detects the shutter cocking, mirror
up/down operations.
Detects the attachment/detachment of
the lens. Turns ON when the lens is
attached.
the external flash.
up.
When the flash phase changes from
H→L→H, the motor stops.
Flash fires.
Turns ON when the shutter's 2nd
curtain's traveling ends.
Detects the film ISO speed.
is present. Opens when there is a film
cartridge.
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