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Du 9
Exposure
time-selecting
For selecting the exposure time,
the value of resistor Rs must be
changed.
Rotary SW which
rotates
with the shutter dial,
shifts the circuit
which determines
the resistance
value of the metal foil resistor plated on
the ceramic disk.
Registance value of Rs is 8002 for 1/1000 sec,-+-.-->
800k. for 1/lsec.
METAL
FOIL RESISTOR
CERAMIC
DISK
ROTARY
CONTACT
POINT
Fig.2-27
Pig.2-28
Shutter
speed adjustment
Whole
exposure
level setting except for 1/1000sec.
is provided 'by
adjusting
VR1.
VR1
changes
the potential difference
across
point A and
B while
i3 is flowing.
Thereby
''0-to-level
time"
is changed (Refer to
Principle of Electronic shutter),
BATTERY
CHECKER
CIRCUIT
General
By pushing
in the BATT
checker
button,
the battery life can be check-
ed easily;
If the indicator
does not glow,
the battery is out of use.
Battery
checker
circuit is shown
in Fig. 2-29.
Pig.2-29
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