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same
colors
but the fast, slow direction is
re
versed.
A
photocell of the same color
as
the
one replaced generally solves a problem of in
correct trigger voltage.
If
it is necessary to use
cells
of a
different rating
go
down in color
from blue to black - etc. to
increase
shutter
speeds;
go
up in color -
from
orange te white
etc. to deere_ shutter speeds.
b. Further shutter speed control is possible by
changing capacitance values.
Use the same
scheme,
Fl"
2~2,
but reverse the directions:
e.g.,
go up
in
color - from orange to white
etc.
to
increase shutter speeds;
go
down
in
color -
from
blue to black - etc. to decrease
shutter speeds.
2.
Component Identification
a. Color coding of components, solely for ease
of replacement and identification,
is
more
complex. The method used originally on the
362 shutter
is
illustrated in Fig. 2-3 and explain-
ed
as
follows: capacitors; the first stripe (neal'"
est the positive lead)
is
used to denote the color
group to which the capacitor belongs; the
se
cond stripe indicates its schematic reference
designation -
C I.
C~
etc. Resistor color bands
are industry standard indicating resistance values
and toferance percentages,
b. Unfortuna(ely. this type of component color
coding, did not remain constant with product
improvement and other engineering changes.
~ew
styli: c4pacitofS are used in subsequent
models and <;e\'cro!
additional ways of coding
wcft'de\'ised - wHh the flnal method, being
th..: pnnlmg: of
the
;).clUai capacitance value, in
microfarads. on the side of the component.
On
these types. the rounded end indicates the
posj..
tive lead. When a problem exists because of
strange or mixed color
coding,
reference rnu&t
be made to the associated Electrical Value Table,
(EVT).
See
Fig. 3-3
while
reading _ p h c
following.
c.
The color wigned to the photoce1l
is
goveminJ;
road
the table homontally,
belinning
with the
first column photoce1l cOOelot ..
ZABCDEF.
and continuing to the
ri&b.t.
The color codes
as
wen
as
the component parameter
value is
given. Simply replace the faulty part
with •
piece
of the
same
numerical
value:
lOmicro
farad capacitor, etc. The photocen. ca.p8(litor.
and resistance values are
au
interdependent and
so
grouped.
D.
SllUITER APERTURE OPERATION
Refer to
the
Manual on Shutter Operation for •
complete description of the operation of the
aperture
wheel
on
the 362 Shutter.
The identical information applies to the
Shutters
tabulated in
Fig.
2-1. Also, the same information
applies to tneType 366 Shutter.
This
manuol is
concerned with the mechanical and elexUical <fP'"
eration of shutters not previously covered in the
aforementioned document: basically. the 384
Shutter. along with the 383 and the 386. Since
the 384
is
the mQSt complex;
it will
be the only
type discussed.
SLACK'" C1
REO. C2 & C3
GR:EEN .. C4
d
~1I1-.
n
Dill...
_...J
......!.4U
D
III...
+
-u
I Cl
u -
C2~&~C~3~~7..~,
_1__________ __
____
tL-l__
_______
'
'
1_--:--
-' f
1
I
C4
COLOR GROUP
F'G.
'23
CAPACITOR COLOR CODES
10
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