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10
ll
mirror
Housing
modification.
The Mirror
Sheet Assembly
comprises
0-D125,
0-D134
x4,
0-D138,
D152,
D153,
D154
x2,
D155 x5 and concomitant
washers,
lock washers.
D125
New
Curtain Bounce Prevention System
To equalize damping
intensity at each operation,
friction
springs
are
now
employed
instead of the ratchet for unilateral
transmision
with
thickened friction plates.
Friction Plate
C has holes as
oil reservoir
and provides
nearly same
charactristic
as obtained in an oil damper
with the help of new
lubricant
L-6,
To facilitate damper
gear adjustment,
the damper
gears
are
grouped
and
colcred in the reverse
side of the dowel
stud:
red-—~ a,
black-—~b.
''a"'
and "'b'' are different only in the relative location of the dowel
stud and
the corresponding
gear tooth.
Therefore,
old damper
gears
can be
used if selected and suffice the adjustment.
To accomodate Intermediate Lever Spring (E23-1) which is newly em-
ployed,
Damper :irms (0-E09,
0-E10) are changed in shape,
involving
parts No. modification (0-E09 —=1-EF09,
0-E10 —~1-E10).
Since
the operational angle is different between old and new,
these shall be
used in proper conbination as (0-F09,
0-F10) or (1-E09,
1-E10).
Interchangeability
remains
between
the old and new
system
as a unit.
Shutter
Curtains
To improve
shutter performance,
increased
shutter
curtain traveling
distance,
addition of a weight,
strengthened
curtain tensioner,
change
in
the bearing construction from an independent
type to
a common
shaft type
are the items
of modification,
An end retainer
is employed
to the
bottom
of 2nd Pinion Shaft.
Electronic
Circuit
Capacitor
C2 is now
between
the emmiter
of TR1
and ground to by-pass
a-c
signal in the initial stage to ensure
the positive
operation of the
circuit.
An oscillation
of the circuit may
affect the time-selecting
control
ranging
1/250
~
1/60sec.
in which the exposure
time
remains
almost the same
regardless of the shutter speed dial set at from
1/250
to
1/60sec.
In practice,
this modification
is a accomplished
by:
(1)
A touch up on the other side of the circuit board.
(2)
Temporal
C2 installation between
the terminals
of
the potentiometer
VR1
from
this side of the circuit-
board.
The former
can be identifed by the white paint at the top.
Tr,
fy!
'\
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