Roland Series 300 Operating instructions

REPAIR MANUAL
ELECTRONIC MODULES FOR USE
WITH POLAROID LAND SERIES 300
AUTOMATIC SHUTIERS
AUGUST 1972
-
-
POLAROID CORPORATION I REPAIR DEPARTMENTI CAMBRIDGE, MASSACHUSETTS

-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
INTRODUCTION I
This publication suppli~;additional information required to repair automatic
shutter Electronic Modu"s. These $hutters, and associated Electronic Modules
are used in the Polaroid ~ries 300 Cameras, 8$ shown in the following table:
Camera Model
315
320
325
330
335
340
350
i
! Shutter
388
386
389
362
381
383
384
Module
Type No.
12·13·14·15
12·13·14·15
12·13·14·15
12·13·14-15
12-13-14-15
5
3· 4· 6- 9
10-11·16
The manual. which is to be used in conjunction with the Repair Manual on
Automatic Shutters dated May. 1968, is divided into four (4) sections.
Section 1- Explains the pr:inciples of operation of the Shutters, including both
electrical and mechanical theory.
Section II -Reviews information previouslV released on the Series 100 ard 200
Camera Shutters and notes the differences, principally product improvements.
between the various shuttel1,
s.etion III -Provides identification information for all the Electronic Modules
used
in the 300 Series Cameras and Shutters,
Sect10n
tV -Gives troubleshooting and repair procedures f()f Electronic ModulM.
including a Substitution Table, which provides interchangeability data.

-
-
TABLE Of CONTENTS
-Title Page
-
I. PRINCIPLES Of SHUTTER OPERATION. 1
A. Mechanical Operatlon.. . • 1
B. Electrical Action. .. •. . 3
II. OIFFERENCES BETWEEN MODELS. 9
-A. Similarities, . . . . . 9
B. Differences........
9
C. Color Coding . . .• ..
9
1. Control Shutter Speed • 9
2. Component Identification. 10
D. Shutter Aperture Operation •
10
1. Shutter Model 384. . . .
11
-a. Aperture Wheel Operation
It
b. Scone Sele<:tor •
11
III. ELECTRONIC MODULES.. .
13
-
A. Module Oporation . . • . .
13
S. Module CI.a$$ific3tion. • . • 13
1, Electronic Module Type t . 13
2. Electronic MOdule Type 2.
16
3, Electronic Module Type 3. 18
4. Electronic Module Type 4. 21
5. Electronic MOdule Type 5. 24
6, Electronic Module Tvpe 6, 25
-1. Electronic Module
Type 7.
26
B. Electronic Module Type 8. 29
9. Electronic Module Type 9 .•
29
10. Electronic Module Type 10 . 30
11. Electronic Madute Type 11 •
31
12. Electronic Module Type 12 . 32
13. Electronic Module Type 13 • 35
14. Electronic Module Type 14 • 37
-15. Electronic Module Type
15 . 39
t6. Electronic Module Type 16 • 40
IV. TROUBLESHOOTING AND REPAIR
41
A. Testing.. ... .. 41
1. Resistors and Capacitors •.•
41
a. ResistorS.. ...... . 41
b, Capacito~ . . • • . . . , . . 41
2. Replacing Resistors and Capacitors .
41
3. Transistors . . . . . •
41
4. lotegtated Circuits (I.e.) • 42
B. Interchanging MOdules . . . • . . .
42
C. Parts Information . . . . . •• • 47
1. Part. In Stock. .. .....
47
2. Pamand Assemblies No longer Stocked
47

-
-LIST
Of I~LUSTRATIONS
-
-
-
-
-
-
-
-
-
-
-
figure No.
1·1
1·2
1·3
14
1·5
1-6
'·7
1·8
1·9
1·10
2·1
2·2
2·3
2-4
2·5
3·1
3-2
3-3
3-4
3-5
3-6
3-7
3·8
3·9
3·10
3·11
3-12
3·13
3-14
3-15
3,16
3·17
3-18
3-19
3-20
3·21
3·22
3·23
3,24
3-25
3-26
3·27
3·2B
3-29
3·30
3-31
3·32
3-33
litle Page
Basic
Shutter Components 1
·
·
Cocking the Shutter • 1
· · ·
·
Controlllng the Timing Switch. 2
Cocking the Slide . • 2
· ·
Tripping the Shutter.
2
·
· ·
Releasing the Opening Blade. 3
Schematic 362 Shutter . 4
·
Magnet Holding Circuit.
5
· ·
capacitor Holding Circuit. 5
·
RC Timing CirctJit • 6
· · ·
·
Type List of Electronic Modules , 8
Photocell Color Chart 9
·
Capacitor Color Codes .
10
· ·
Aperture Wheel Operation
11
· ·
CapacitorSwitch Rotor
11
· · ·
Top View Module Type No.1.
12
Bottom View Type 1. 12
· · · ·
E1ectrical Values &: Part Numbers Type 1
14
Schematic
Type 1 . · · ·· ·
15
Top View Module Type No.2.
16
Bottom View Type 2 16
· ·
Schematic Type 2 • 17
· · · ·
·
Top View Module Type No.3,
18
Bottom View Type 3, ,
18
· · ,
Electrical Values &: Part Numbers Type 3 •
19
Schematic Type 3 . · , · . · ,
20
· · ·
·
Top View Module Type No, 4.
. · ,
21
·
Bottom View Type 4
21
· · · · · . ··
Electrical Values
&: Part Numbers Type 4 .
22
Schematic Type 4 .
23
· · · · ·
Top View Module Type No.5.
24
Bottom View Type 5,
24
· · · ·
Top View Module Type No,"a.
25
Bottom View Type 6
25
· · ··
Top View Module Type No.7.
26
Bottom View Type 7. ,
26
· · ,
Elec;trical Values & Part Numbers Type 7 27
Schematic Type 7 ,
2B
· · · · ·
Top View Module Type No.8.
29
Top View Module Type
No.9.
29
Top View Module Type No. 10
30
Top View Module Type No.1 t
31
Top V;ew Module Type No. 12
32
Bottom View Type 12 , , 32
·
Electrical Values &: Part Numbers Type 12
33
Schematic Type 12
,
34
· · ·
Top Vi"" Module Type NO. 13
35
Bottom View Type 13 .
35
· · · . · . · ,

LIST OF ILLUSTRATIONS (CONrOJ
F.,,,, No.
3-34
3-35
3-35
3-37
3-38
3-38
3-40
4·1
4-2
4-3
4-4
Title
Schematic Type 13 • • . • • • • • . •
Top View Module Type No. 14 • • • • •
...
Bottom View TVpe 14. • • • • • • • •
Electrical Velue. & Part Number> Type 14.
Top View Module Type No. 15 •
Bottom View Type 15 ••••
Top Vie... Module Type No. 16
Testing Resiston: . . . ~
Testing Transistors . . .
Testing Integrated Circuits:
Substitution Tabje. . , .
Page
38
37
37
38
38
38
40
41
42
43
44

-I -
PRINCIPLES OF SHUTTER OPERATION
-
The simplest explanation of the way aU camem
-work is: a certain
amount of Ught is allowed to
fal! on a photographic film for a certain amount
-.
of time. The amount of light is controUed by the
aperture (hole) in the camera shuuer. The amount
of time is controlled, in the 300 Series Polaroid
land Cameras. by a photocell (electric eye) and
-associated ele<:[ronic circuitry.
When a shutter
is operated. the film is expO$ed to light. and the
-Electronic Module measures the 'time
of exposure'.
thereupon permittingmechanical action to close
the
shutter after sufficient elapsed time.
-Since
the shutteB described in this manual are
almost identical. the following mechanical and
electrical sequences win apply to all of them,
A. MECHANICAL OPERA nON
-
-
I. Four basic assemblies (Fig. 1~1) fonn the auto-
matic camera shutter: the aperture selector.
the opening blade,
the closing blade, and the
electronic module.
-CLOSING
-
SELECTOR
{WliEfU
SLAOE
Af"fifnURE
/
ELECTRONIC 1C::::::::::l~
-MOOULE
FIG.1-1 BASIC SHUTTER MPONfNTS
2, The aperture seiectorcontrols tbe light enter-
ing the camera
at any moment: the opening
blade beg;ns the exposure. the
dosing bbde
ends the exposure~ and the electronic module
circuits regulate the length
of exposure time.
3. To operate. the shutter must first be co<:ked
'by depressing the cocking arm (Fig. I~J). As
the arm moves, it pulls the cocking slide, which
in turn, pulls the opening blade to its opernting
position. While
the opening blade moves. it
carries the closing blade along with it. When
the opening blade has been moved far enough,
a latch pin integral with it, forces the blade
latch down, until the pin passes a shoulder, on
the latch. As the pin slides beyond the latch
shoulder,
the latch snaps up, securing the pin
and holding both shutter blades in the cocked
position.

4. WhiJe the shutter is uncocked. the blade latch
holds the timing swilOh (S2) open (FiJI. I-n
Cocking the shutter causes the 5eCUring of the
latch pin, and thereupon the blade latch allows
the
sptill,ll-Ioaded timing.witch to close, an ac-
tion necessary to start electronic circuit functions.
TIMING
SWITCH
(S2)
A further push on thC' cocking arm Jatches it in
th~' .;o .... l.,eu pOSltion (Fig. 141.
~ Wh,'n <;.0 wcured. the ovef{ravel arm is butted
flrmh ;q:;.un<1I the shoulder of the cocking pin,
lD turn, !or':lng {he clOsing blade tightly against
Ih~ ;"vq'h~r ot the electromagnet. With the over-
IrJ\~'i.Jfnt Io.:k~u, the associated spring is.
~lr~·!,·huL AI thl ... pOInt. the shutter is c;;ocked:
Ih~' Itll"rlnl! 1,0,111 hl' .... omplcted by the return to
r\.·~l rn.,1l1<1ll nl Ill'.' ... trained spring.
{', ·lnpl'lll.!; J~'IHln 1;'q1. I-;;II~ begun by pushing
()'~ Ill, dlUU',r fv!l.':.!\I.' hutlOn. This is part ofa
~J~I,· ,j .... ~·!',r!: "'vll, 1mO Ih .... hody orth': Carn-
er;.;:. \\h,tfl tlw hUHnn I~ pt"L'SSCO. the shutter-
rd .... ..:,~' {l!" h lor..:.:o >1!';JlnSt the battery switc;;h
lSI j\.I<, .. II1~ It J110 tnpplnj! th~' ~Iidt; latch.
q(j'lfi~ SJ ~"Ompkh:<' the t:ircliit. operates the
<kdFIIll.":';!;,'l ~ 111'.:11 nllw !lokI-.. Ih" do\inf! blade.
ARM
"""""'"
.RM
SHUTTER
<:;;;Jf-- REt-EASE
8ATTliflY
SWITCH
IS"
MAGNET
BUTTON

- 7. When
the slide latch is tripped. the cocking slide
2. The mechanical action, of aU the Shutters
releases; as
the cocking slide returns to its rest
-position, a roller
contacts a tang on the blade
latch. and forces the blade latch down (Fig. l~).
This action, first: releases the opening blade,
-and
it snaps into position, aUowing light to pass
through, exposing the film; secondly, pennits
the blade latch to open switch 52. Opening 52
-initiates the electronic measurement
of the
amount of light and time to which the film is
being exposed. The photocell uses the average
scene light
to control the: flow of current through
-the liming circuit. When the proper time, de-
pending
on fUm selected, and aperture size, has
elapsed.
the magnet current is cut off. ThiS re-
leases the closing blade, which rapidly snaps back.
-and
shuts off the light, completing the mm
exposure.
-
-
-
-
-
-
-
8. The above action also fires the flash gun when
(ine
is used_ The combination (Fig. lw2) of X~
- make.
X~break., X~contact, X--connecter, and
Rash saft':ty switches
controls the firing of the
flam.
B. ELECTRICAL ACTION
I, Electrical action is initiated. controlled, timed,
-and terminated by
the Electronic Module sub-
assembly
of the shutter. Mechanical action.
as previously described. is part of the overall
electromechanical action_ Switches
must first
be opened or dosed in predetermined sequence
in order to start the electric circuits functioning.
3
concerned here, is virtually identical. The ele<?
tneal action is aiso the same as far as basic pur~
pose is concerned: the time and quantity mea~
surements of light. But increasing sophistica~
tion of design, and employment of miniaturized
components, has led to the developmenl of
many different electronic modules.
3. Electrical
action will be described in detail with
respect
to the ultimate purpose of the circuitry,
but without concentration on the specifiC uses
of components. The following section (Section
Ill) wiJl present detailed information. including
identification,
and sufficient other data. to per~
mit field use of any Electronic Modules stOCked.
This
contributes to economical. customer repairs,
4. The basic eJectronic circuit is a two (2) rransistor
trigger:
it uses a photocell to control the length
of time that a small electromagnet is energized
(Fig. 1-5). Power for thecircuit illustrated (Fig. !w 7)
is obtained from a 4.5 volt bauery. Later modules
use a 3 volt type
power source.
5. Electrical
action requires the closing of switches;
S2 Grst~ and then, S 1. the battery power switch,
51 is closed by pressing the shutter release button.
When SI operates, power is applied simultaneous-
ly
to two (2) circuits: 1) the electromagnet hold-
ing circuit,
and 2) the capacitor by-pass circuit.
In
the first circuit, current flows from the battery
(Schematic Fig. 1-7) through
SI to one terminal
of the coil of the electromagnet M. and through
RI to the base of transistor Q2.
As the volta&e on the base of Q2 increases, the
NPN transistor turns on, because Emitter to
Base electronic current flow begins. With Q2
"on", current now flows through the coil of the
magnet M, completing this circuit and holding
the closing
shutter blade OPEN. See diagram.
Fig.. 1-8. for a representation of the described
current now_
In the by-pass circuit, current flows (Ft" 1-9)
from
the battery. through S I. photocelJ LDR. re-
sistor R6, and S2, to the other side of the battery.
This completes this
cjrcuit. and by-passes the com~
ponents noted on Fig. 1-9, just sO long as S2 re-
mains clOsed.

--------
S3 _
.A Ie -
He I R.
R.
L
------...:~R3
I
R.
+
R,
4JSV 1_
LOR
I 1'::=:- ~
..
'.
R7
FIG.1-7 SCHEMATIC 362 SHUTTER

-
7. When 51 is closed, and the shutter simultan- components. Si.nce direct
current cannot flow
eously tripped, the blade latch opens 52. With through capacitors.
the function now changes
-
S2 open. the timing circuit by-pass is removed,
to voltage, which charges the capacitor, or re-
and timing begins. Current now flows through sistor/capacitor
combination, selected by rotor
SI, photocell LOR, and the selected timing switch,
53, on the reverse of the aperture wheel.
-
-
-
-
-
-
@-+
BATTERY
s,
FIG. '·a MAGNET HOLDING CI RCUIT
-
BYPASSES TIMING CIRCUITRY,INCLUDING Cl THRU C4, R4· RS· R7· RS
-
ttB-4
BATTERY
s,
S2
CAPACITOR BYPASS CIRCUIT
FIG. '·9 CAPACITOR HOLDING CI RCUIT
5
--.e.g
PHOTOCELL BATTERY

8. With, for example, capacitor CI (Fig. HO)
being charged, the charging rate wiD be deter-
mined by the amount oflight .triking the LDR.
The photocell now acts as a variable resistance;
if the light shining upon it is dim, its resistance
wiD be high, it wiD pass less CUmllt, and the
R.c time wiD be longer. Consequendy slow-
ing the closing of the shutter, and allowing
more film expOSUre time~ In the same manner,
various combinations of RC circuitry ~ workin,
with the selected aperture wheel openings. win
produce various rime delays. With Q2 "orr'.
the magnet can nO longergrip the shutter dOlr
ing blade, so the blade snaps back, closing off
the light and completing the exposure.
FIG 110 Re TIMING CIRCUIT
9. The rmaJ action, to complete film exposure
and reset the camera for the next picture-
takingoperation, is remoyaJ of pressure on the
shutter
release button. This happens: very
quickly, Sl opens. and all power is off. Re-
cocking of the shutter before the next picture
discharges CI and all components .... ready
for the next sequence.
NOTE: In tlte{lash operation. switch S, (Fig.
1-])Is c&ned when the shutter Is cocked. while,
at the same time. switch 51 isallowed to open.
When the .hutter Is tt/pped. the ope,.~ Mzde
cJom S1' S. being heJd closed becau.se the '/'nIJI'"
net circuli", Is Immobilizing the clo.ri1lll _e.
I'HOTOCELL . 52 OPEN IBREAICS BYP_I
~ ~,.({(~-+·I ~~-}q
( BATniRY
51
.
fti R2
4 ,..«([[~ ... '-<ff[{({((("'-
L--1~. ~ Cl {CHARGINGI
01
01
~ ~J ~~--"".C®---J
1---- •• ~ Ql ON TURNS Q2 Off. RELEASING MAGNET HOLD
COLLECTOR
02 OFF
6

-
-
Both swUches closed. activates the Model 268
/14sh gun if one Is plugged il1; otherwise, when
the magnet is deenergized, S. opens and breaks
-the continuity
ollhe flash circuit; there is thl4.
no wnger possibility of a preTMture ruing of
the f/4sIt.
-
-
-
-
-
-
-
-
-
7
to. 54, of the schematic. is a flash compensation
switch. Inserting
the flash gun probe causes
54
to open, thu$ placing R4 in series. widl C3,
and R7
in series wi[h C2. consequently increas--
ing the charging times
of C2 and C3. Increasing.
these
RC times. overcomes the tendency of the
Shutter to dose 100 quickly because of the in-
tense light from the flash.

I
~
FIG. 2 I TYPE LIST OF ELECTRONIC MODULES
I Type Shunt" CillI1l'td ~~~~~~r~m. I T~~ I~~~~--- -Semiconductor I\tIm.oo
~---
1
gm
f:lAt'!.I?_ Transistor Of/gltw'
01 !?.
7 36/1'\ 250
!"!~~~___ _ ____ Tfansi$tOf C5 addbd to' TYpe 1
~ - -_ .. -:JS(1
HAND Transistor R9 added to Type 2
J 364
, 384
~O _ ___ HAND integrated Cireuit Orioinall.C. Tvpe
5
~83 _. __ ._. _._A:4fL _._ Automahc Tr;,f\$isttif Auto _titan of TVpe 1
(i JB4 3S0 Automatic Tran5istor Auto wn:ion of Type 3
c---:--.. ... -- .. ----1-····- .. -.. -. ....
~ ______ .. 374 ___ .. 2('H___ _ HANQ______ Transistor CldeletedfromType2
~ _____ ._ 362' .__ HID .. __ ___ _ ____ H~ND TrartsittOl' 1 0.92 Tr80listor inTVD&l
9 ,. 384 350 HAND Tremistor I,Q,~I~~~I~~JIl:Type3
10 384 350 Automatic Traos~tor R9location
to between Aa&Ol
II 3'84 3SJL ______ r" AutOmatic TransistOr R91s: Pad on reverse R3
12 366 103,________ HAND Transistor Original
13 366 103 HAND Tran'Sinot ' C2 added to Type 12 I
14 38e 32fL. _____ I-- Automatic Tr8n$lltor Auto Version of Type 12 I
15 386 32!L~~~~~. Automatic traniistOf C2 added to typo- 14
16 384 35Q~~~~~. HAND __________ !~~!'srllted Circuit I.C. In second location and R9 deleted
I---+----f---...... 1-1 --1----1--4-----1---4----------1
I---+----f---..... 1-1 -1------1-4-----+--1--------\

-
II - DIFFERENCES BETWEEN MODELS
-
This review includes 100. 200. find 300 Series Cameras.
-
A. SIMILARITIES
-
t. The mechanical operations previously explain-
ed apply generally to all the shutters with slight
differences to be herein described. Because the
-Model
362 Shutter is the original, and all others
are variations and improvements.
on that shut-
ter. the previous discussion in Section J, is basic-
ally. a
fu11 treatment of the Mode1362 Shutter.
-
If more precise and detailed mechanical action
knowledge (assembly and disassembly) is de-
sired, refer to the Repair Manual on Automatic
-Shutters, Models
362, 366 and 374, published
May 1965.
-8. DIFFERENCES
I. From I"e Model 362 to the Mode13S9 Shutters
-the main difference is
not mechanical. it is elec-
trical. The mode1385 Shutteris fully explain-
ed in the Model 360 Camera Repair Manual, so
-it will not be considered
in these instructions.
By virtue of changing.. and adding or subtl'3cting
components, the integral Electronic Modules,
have
been refined so that approximately six-
teen
(16) varieties now exist. The variations
-for
the most part are minor. bUt the physical
pIacement
of components on the board, the
size and number, the identifyIng color codes.
and the different flexible circuit solder points.,
-
are possible problem factors.. The changes were
occasioned
by other changes in the cameras
themselves:
$Uch as: adding an electronic timer.
etc.
2. To provide an answer for this problem and to
-make it possible
to substitute one module for
any
or all of the others. is the purpose of this
manual. The method to be followed is: an ex-
-haustive deve!opment
of all significant infonna~
tion about tne modules: an arbitrary number-
jng
to be applied as a positive means of Type
identification. and separation; and. finally, pre-
cise directions
as how to economically convert
from
one type to anotber. wbere interchange-
ability is simple
and feasible.
-
9
3. The Table, Fig. 2-1. shown on opposile page,
is a compilation of the information presently
available
on aU electronic modules now, or
previously used, on the automatic shutters for
pack cameras.
The remarks
column briefly describes tbe
changes made. The text develops the differences
in more detail, and will indicate which modules
are interchangeable and what~ if anything, has
to be done to them) to substitute one type for
another.
C. COLOR CODING
I. Control SIIul .... Speed
a. Color coding of transisto~. photocells. capaci-
tors"
and resistors is used for two (2) purposes.
One is to positively identify a component for
ease of replacement. The other is 10 system-
atize replacement of components when shutter
speed is to be increased or decreased. Use the
color code to go up or down in speed. These
coJor codes are used only for photocells and
C3tH'CitOrs. The photoceU color chart is illus-
trated in Fig. 2w2. Capacitors use exactly the
aLUB
aLACK
RBa
VBLLOW
GRBaN
WHITa
ORANGB
FIG. 2·2 PHOTOCELL COLOR CHART

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 ratinggo 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 _ph 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

I. Shutter Model 384
a. AJIer"'"' Wheel Operation
L The only additional mechanical information
needed
is aperture wheel utilization. There are
eight
(8) holes (apertures) in the wheel, arrant
ed in sets of two (2), one large. one small; each
set
is. used for one of four different film speeds.
Manual
rotation of the aperture wheel positions.
-one
of the :sets of openings in front of the shut-
ter
~ the other aperture of the set is selected by
the scene selector slider (Fig. 2-4),. A detent
block and spring stops the aperture wbeeJ
after each turn, and a readout actuator and
actuator detent spring. secures the wheel at
each position.
-
-
ACTUATOR OETENT
OETENT
BLOCt(
-
-
-
-
-
SCENE
SELECTOR
SUCER
APERTURE
WHEEL
FIG.2-4 APERTURE WHEEL OPERATION
-
:;:, There are four (4) exposure time circuits when
-
fhe same light level is used in testing. Under
actual use conditions. the photocen is an in~
finitely varying resisrance. and the range of
-exposure times is unlimited. Connection
to
each of the Resistor-CapacitoT (Re) time cir-
cuits, is made by a four (4) position switch
Tot('Jf (S3) molded into the reverse of the aper-
-ture wheel. Fig. 2-5
-
11
COMMON
3. As the wheel is rotated throuylt the various
aperture positions.
the capacitor ,"witch rotor
connects the contacts on one offour (4) com-
binations.
The combination connected
through the rotor, selects the RC circuit which
will be used in shutter timing.
,lbe values of the capacitors are diff~rent. their
charging ratesvary; the photoceU resistance
varies with
the light falling on it: and. finaUy.
lixed resistance values are selected according
to RC timing needs~ 'The combination of these
factors determines exposure times
of the shutters.
b. __ IOI'
I, The Scene Selector slider selects one of the two
(2l available anertures at each setting of the
wheel. lbe smaller aperture of ee:ch set of two
is used forth. fastest films IASA3000 B& WI.

'U'SH SOCKET
o
o
C2
o
FIG. 3-1 TOP VI EW MODULE TYPE NO.1
FIG.3·2 BOTTOM VIEW TYPE 1
11

-
III - ELECTRONIC MODULES
-A.
MODULE OPERATION
t. The Electronic Module is the heart of the
e1ectricweye, automatic exposure shutter. The
-'basic principle
of operation of all shutters is
identical - both mechanically and electrically_
The idea is to open the shutter. allow it to re-
main open, exposing the rdm. and shut it at a
precisely measured time increment. The shut-
ter opens and closes at the precise time requi ....
-ed
by the light conditions and the type of film
available. The operator has only to select the
type of film bein, used and set the scene selec-
-tor;
the rest is completely automatic.
2. The following is a compilation and analy~is of
infonnation necessary to repair or replace com~
- pOnents
in any of the Electronic Modules used
in all Cameras of the 100.200 or 300 Model
Series.
3. The data is presented as roll~: the assi~ed
Module Type number: a top view of compon-
-
ent layout; a bottom view of the boord. show-
ing
solder connections: an Electrical Values
Table
with part numbers; and an Electrical
Scbematic
to facilitate troubleshooting and
-
circuit tracing.
4. Many
of these modules are now out of rroduc~
tiOn and are not stocked. However. with the
-
-
-
,.
"
data herein. a satisfactory repair may he made
by using a
commercial equivalent. if the Pola·
roid
part is not availab1e. Thit; \I.-ill experlite
repair and permit of component rcplaccIT!l!!"L
rather than more costly. module exchlnj!c ..
saving both
time and money.
S. Seven (7). of the si<teen (16) type.' of 'dodules
previously tabulatedt
may be used in:l J1it4
. Shutter - types 3~4- 6 - 9., 10- 11 :t'"!d I .....
These will he covered and exp1ain~'(! '" 11:':.111
in the following breakdown of ElectrnRl<.:
Modules bef!inning with Type 1, tbe ori2inal
362 Shutter module.
B. MODULECLASSmCATION
1. _nic Module Type I
This(F~. 3·1. 3-2) is the rust module to "" U"',
in tbe original pack camera and is included here lor
comparison and reference only. Complete inf('lr~
mation~ including electrical and mechanic" timc-
lions.. is available in the Repair Manual for 362.
366 and 374 ShutteB. published in May 1968.
The Eeetric;d values (PM'3.meten) of the compotl~
ents are tDven in the foltow;ng uble (Fig. J..3l.
The electrical Schematic
is shown in Fip,. 3-4.

j;
FIG.3·3 ELECTRICAL VALUES 8t PART NUMBERS TYPE 1
Photocell
RMillort
C81!.clton
V.'UII
in Ohm.
Vatu. In Mtcroflf8dt
V.lul in
Cl C2 C3
C4
SchematiC Rei
LDR
K Ohms RI/RJ
R2
R4
RS
R6 R7 R8
MinIMu
Min
-
Mln/MlllII:
---
-
Pari Number 155249
~n
Pi5153 165149 155150
155151 155152 160408 155145 165146 165141 155148
--_._-----
--
Lalol Group! Color Nole 1
--
Z Blue 15.11 17.20 10K 1800 68K
120 3300 120K .191 .220 2.03
2.33 14.0
18.0
A
Black
13.20 15.10
10K
1500 56K
100
3300 120K .220
.252 2.33 2.8B
16.0
18.6
8
R.d
11.50 13.19 10K 1200
47K
91 2700 lOOK .252 .290
2.68
3.07 18.5 21.2
C Yellow 10.00 11.49 10K
1200 47K
82
2200
82K .290 .338 3.07 3.63
2'-2
24.3
D
Green 8.70 9.99 10K 1000 39K
68 2200 82K .338 .388
3.53
4.06
24.3 27.9
E White 7.60 8.69 10K
820 33K 62
1800 68K .388 .440
4.05 4.66 27.9 32.1
F Orange
6.60 7.59 10K
6BO 27K 51
1500 56K .440 .504
4.65 6.34 32.1
38.9
--
r,.nsiltOf
_.-
Sehemnic Ref
01
02
Part Number
152553 152552
HFE (BETAI 200 001300II -
,
1--
--
NOTE I
RI/R3;s a If1PlIf7IlS insertboard RI variable 65 to 80 Oh"", R3 v.rlable 0I42K 0hmI
-
NOTE 2 Capa:iror C2 and C3
ate kJenricBl. Hllve.me MinIMax .,Bluft
-NOTE 3
The fix (6J digit numbers are PolaroidPart NumbMI
-
-
--

-
-
-
-
-
-
-
-
-
-
-
-
+
- ..
>
"!
..
~Ij- I
'"
:E
......
-
~A
.~.,
"
'"
0
...
-:>
","
r\
~
-a
1 )
"i
...
'"
..
a:
:
r
,
""
.. ,
,
,
,
,
,
,
,
,
I
•
,
'"
'"
-, ....
-
.. "
..
N
....
~
'"
..
'"
..
'"
'"
..
.. U
'"
..
u:;- I It;-
'f"
w
~
U
....
«
:iii
w