User Guide
I
FAA23051-R.3248. A
(4) Film advance and mechanical sequence
@parallel drive
CH
CL+C–AF
Cs
Shutter
release
~charge
magnet.
Current flows in shutter
Shuttr release
Mg-ON
I
Mechanical shutter hold
i
Mirror latch
is released.
I
is released.
Rear curtain returns
(dual curtain shutter
is released)
Film is loaded.
(Film detection
switch is OFF)
Mirror moves up +
Aperture control
Camera back
system
works
I
(Aperture PI works)
is closed.
Aperture Mg
works.
(Camera back ._
-—
—
—
Front curtain
Mg is OFF.
(Front-curtain
.~;%~”.-.
. . . . . . . . . . . . . . . . .
..........
~=N.w:.#.x::~~,fi
travels)
~Exposurei
. . . . .
w
.:=
t
iiie7..~
f:fl;w.T..y%:-:~
Rea;
curtain
..~fi.ll~...:.....:
. . . . . . . . . . . . . . . . . . . . . --J
. . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . ..! . . . . . . . . . .
:::::::vq
Mg is OFF
x==xsGX;X2S
.
.. . .
,switch is
OFF)
Rear curtain
switch is ON
i
(;ear
curtain
travels)
Shutter charging motor rotates
(Charging switch is being OFF)
I
Mechanical
Shutter charginq
charging
cam rotates.
- -
Pulse plate
rotates
1
I
(:::::::,
(Shutter
Mg
mechanical
charqinq lever)
charae lever)
I
1
--
Photointerruptor
I
I
I
I
works.
I
Pulse is
control
generated
lever is
(pulse number
charged.
is counted.)
1
Sh~tter
Fiim Shutter
release
sprocket
curtain
lever is
latch is
is charged.
reset.
I
released.
Film advance
Shutter
completion
Front
release
switch is ON.
curtain
lever is
is reset
attracted
I
[Front
Shutter Mg
mechanical
charge
lever is
reset.
I
Mir;or
Aperture
moving
control
down
system
:
to
I
curtain
operation is reset.
:
shutter
Spool motor
control
starts.
[3.4
~
release
works.
spring is
I
lever,
;
Mg
I
cha~ged.]
aperture .
Shutter Mg
mechanical
charge
I
Mg]
I
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
:.
:.
I
.
:
SDool
rotates.
Rear c’urtain
1,
control lever is
Film advances.
reset.
[Rear curtain
Mirror
;
latch,
~
stopper
:
operates. :
Mirror
moving
down
I
return spring,
Film sprocket
rear curtain
rotates as film
control spring
perforation moves.
is charged.]
operation
is completed.
Cha;ging
switch
I
Sprocket cam rotates.
L
r
:ain
:ch
)FF .
is
ON.
After countina
21 pulse
numb;rs.
(Mirror moves down)
Exposure metering
and focusing control
start.
Sprocket latch
Film
~dvance
stopper works.
completion
“1
switch is OFF.
Sprocket stops.
I
*When the
photointerruptor pulse
is counted up to 21,
the camera starts
exposure metering and
focusing operations
because the camera
recognize that the
mirror has moved down.
Charging switch is OFF.
Spool”motor stops.
Shutter charging
motor stops.
(Shutter charging
cam stops rotating.)
Total mechanical charging
operation is completed.
—M14
—