2.2 S
ENSOR
S
WITCHES
No.
Code
Name
Function
1
BP SW
Camera back
Becomes Low when the camera back is
open/close switch
open.
2
CMSP1,,2,3SW
Shutter-cocking phase
Detects the shutter cocking, mirror
switch
up/down operations.
3
MIF SW
Lens switch
Detects the attachment/detachment of
the lens. Turns ON when the lens is
attached.
4
SHBUSY SW
External flash detection Detects the attachment/detachment of
switch
the external flash.
5
POPEND SW
Pop-up detection switch Turns ON after the built-in flash pops
up.
6
POPCTR SW
Pop-up control switch
When the flash phase changes from
H
→
L
→
H, the motor stops.
7
X SW
X switch
Flash fires.
8
CN2 SW
2nd-curtain switch
Turns ON when the shutter’s 2nd
curtain’s traveling ends.
9
DX1-5 SW
DX code switch
Detects the film ISO speed.
10
PTIN SW
Film cartridge detection Detects whether or not a film cartridge
switch
is present. Opens when there is a film
cartridge.
Part 2: Technical Information
2-24
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