Eiki ELF N Series Manuale utente

Film-Tech

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exchange of information related to cinema

projection and film handling, with no warranties nor

obligations from the authors, for qualified field

service engineers.

If you are not a qualified technician, please make no

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EIKI/ELF N Series

L6mmProjector

ServiceManual

www.cineinfo.co.uk

www.cinephoto.co.uk

TAEI..E

OF gOFITEffiGi

Title FA6E

II{TRODUCTION

3l4-l: PRINCIPLES

OFOPERATIONS

l-l lntroduction. .. .. 15

l-2 MechanicalSystem ..-.-.t5

l-3 Electrical

System ... ." .. 15

l-4 Sound

System .-. ts

3l4-2; SERVICEPROCU,DURIjS

2-l Precautions.. .- .. 1?

2-2ToolsAndTestEquiprnent .....17

2-3 LubricantsAndLubricationCharts ...." Ig

24 TroubleslrootingHints .

3143: MODULE REMOVAL AND INSTALLATION

3-1CamTankModule... ...25

3-2AmplifierModule ........)<

3-3 MotarModule . .. 26-

3-4TransformerModule...- ...-...26

3-5 Lens

HolderAnd CateModule . . . 26

3144: MODULE REPAIRAND ADJUSTMENTS

4-l CamTankMsdule -. .

A. Specifications

B. Disassembly

C. Re-Assembly

D. Adjustments

LClawProtrusion ...-.-2&

S.ClawPositionAndFraming

..-. .....29

ClawReplacement.... ........3u

F. ChangingShutterBlades -.......31

G. StillPictureClutch .....- j7

4-2 Amplifier Module

A. Specifications . . .- 33

B. PowerSupplyCircuit .,..33

C. AudioAmplifierCircuit ......,.i'

D. Magnetic

d"ecordAmplifier . . . . . . . . . .. . . : . .'. i;

E. AmplifrerCircuitDiagrams ----..i+

4-3 Motor Module

A- Specihcations

- - .- 39

B. MotarCircuifDiaersm ... 39

C. ConnectorWiringCode ...-.- .lg

D. SilentFilm Operation

Antl 50* 60HzConversion

.- . . . . +O

Transformer Module

TransforrnerCircuitDi*gram ---.41

ConnectorlViringCode .- --.-,- 41

LensHokler And GateModule

trilmGate

Assy. ........43

F-ilmShoeandLensHolderAssy

. ......43

314-5: CENERAL MECH.A,NICAL

SERVICINGAND ADJUSTMENTS

5-l Take-UpArm

A. kscription -. - --. 47

B. Adjustrnents...- ......-4j

"frl'$$rig*

4-4

-1-

TAEil.E

OF COfifGT*TS

PAGE

5-? SupplyArrn

A. Description... ...,$E

B. Adjustments,. ...49

5-3 ReverseProjection

A- Description.- -..-4g

B. Adjustments-. --.4g

54 Lower Loop SetterSystem

A- Descriptisn--. ...50

B. Adjustments--. ...50

5-5 S€lfThreadingFfiechanism

A. Descriptinn

.- .. ""52

B. Adjustments.... -..--.-55

l) +tSprocketshma*embly... .....55

2) *tFilmguide -._....55

3) Retraction

of theclaw . -- . ., 56

4l +ZFilmguide -......56

5) $ound drum rubber pinch roller . . . . .56

6) Tension.guideandrollerass€mbty

. . . -. -. .

7, #2 $procket andshoeassembly . . . . .Sg

5{ Rewind Mechanism

A- Description-. ...,5g

B. Adiustments.... .......S9

5-7 Soundtrrum And Flywheel

A. Description-- ....59

B. Adjustments.... .-.....60

314{: SOUND

PICK-UP

SYSTEM

6-l Optical SoundFocusing

Procedure

A. Description.. ....61

B- Alignrnent-.. ...;-....61

l) Toolsandequipment.. .....61

2).Set-upprocedure -:.... -.,.61

3),Soundfocusadjustment. ....61

4)'Buzztrackadjustment. .....62

Magnetic

SoundPlaybackSystem

Description ..-...63

Alignment .-'.-..... .. -..-..6j

li. Toolsand.equipment

-. .....63

2I Set'up

procedure . -. .53

314-7:

LAMPCIRCUIT

?-l LampCircuit ...,65

A. Description-..- -..--...f5

B. Replacementandalignment.. ...65

314-8:ELECTRICAL

SYSTEM

8-1Electrical.$ystem .....; .,.....65

A. FunctionControlSwitch ...."..65

B. ElectricalCircuitDiagram .."....65

3r'4-9:SERVICE

UPDATES

ANEMODIFICATIONS

Attachment:CIRCUITDIAGRAMS ....-67 *79

"if" $giig

6:2

*2-

"il" $cfb

INTR,SDUCTION

I. This ServireManual

provides

thenecessary

lnf*rmx{i*ns for th* repair,

adiustrnent,

and

maintenrnee

ElKl NSTINT-*eriesplniectcrs,madelNST-0,

NST.I, NST"?,

NST.3,t{T"0,t{T-l, 8{T-?,

andNT-3,and

alsoEX-3000-frl

spriesexf,sprfr:r the Xerronlamp nuprply.

?' Thisrerviremanual

csntain $orne

part nurnbers

for csnveniencein identificatian'only"

When

ordrri*g

replac*rnenL

parts,

refrr to NST/NT rcpla*ement

parts

list.

3. ElKl NSTrrSl-1-tntinr

pr*ieclarsmayin the futuretreirnpr*vedor rno*lified.

Il'lodifiettions

made

afterthei*sue

of thismanual

will becover*d

by Service

Updates.

4. A coFy

of allof the perrinent

cliagrams

ar€attashed

at thecndof thi* rnanual.

5.CAUTION! Carernust

beexercised

to areoid

elm{rical

*hockwhileEeruieing

theproiector.

.-,

SYMPTO[4

l. Pilot

lampnot0n

{t*ro$EffEs

rRouBLE $HoorING

I: ELECTRICAL

SYSTEM.

PROBABLE

CAUS€

No power to the AC wall

outlet

2- Defective

power

cord

3. Faulty transformer sr con-

nection

4. Delectivepilot lamp

"lU"Series

CHART

REMEDY

1.Check

outlet

2.Check

& repairor replace

3. Repaircr replace

iSec

Sec

+41

4- Replace

1.Replace

or repair

{See

Sec4-3}

2.Check

& repair,

orreplace

{See

Sec4-3-C)

3. Check& rep'tace

{See

Sec,4-3}

4.Check

& adjust

(See

Sec

8-1-A)

5. Check& replace

{Sec

Sec

8-1-A)

6, Atlow motor to cool and

check

again.

1. Repface

lamp

Check

& reseat

2. Re-position

andtighten

3.Check

andrepair

SecSec.5-1.,

& 5-3)

3-Pifot larnp on, motor

but the lampdoes

not

on in "forward lamp"

tion { {: rff }

2. Pilot lamp on, motor does

not runin "forward" position

{{F.q)

Defectivemotormodule

2. Defectivcor openmotor con-

nections

3. Faulty motor capacitor

4-Switch cam not activating

microswitch#'l

5. Defectivemicro

switch

6.'Motorthermalswitch

open.

(UL

& CSAtype)

J- LrE rTLLIYE rarf lP IrLtqtL

4-Defective

micro

switch

#4 or '

#5 on the function control

5. Open fr.ansfcrrnerconnection

6. Defective

transforrnermodule

1.Micro switch it? andlor *3

defective

2. Defective

motormodule

2- Looseswitch cam

3. Reverse ol take-up clutch

eann'sinstall$d

4. Pitqt lampon, motor runsin

"forward", but not in

"reYersc"

position

( tg; )

5..Function switch. does not

followtheindicated

sequence

1.Defective

famp

2. Lampnot seatcd

propsrly

thesocket

3- Defective

lamp

socket 3. Repair

or replacc

Check& replace

{See

Sec8-l-A)

5,Check&:repair

{See

Sec

4-4-B)

6- Replacp

{See

Sdc

a-a)

Check

or replace

{See

Sec8-1-A}

2. Replace

{See

Sec

4-3}

1.Loose

function switchknob 1. Re-lacateand tighten

runs

come

posi-

*it:

"t" $sries

SYMPTOM

6. #2 film guide{or self-thread

lever)

does

not setthe mecha-

nismto thread

Leaderor film isdimpledin

the first few inchesbv the

spro.cket

teeth

II: SELF-THREADING

SYSTEM

PROBABLE

CAUSE

Cam bracket.

is lsoseon the

#2 film guide

shaft

2.Main interlocking

bracketis

binding

or not latchingwith

the release

brackethook

REMEDY

1.Re-positionand

tighten

(See

Sec5-5-B4l

7. Check& adiust

(See

Sec5-5-B)

8.Leader

iams

guide in the #1 film

9. Tip of the leader enters

underneaththe inner guide

rail

10.Filmdoes

notthreadthrough

thegate,

and

jams

.Film is inserted

with the

sprccket holesoppositethe

sprocketteeth

2. Not enough clearancebe-

tween

the sprockel

plate

and

thefiim shce

3. Film path and #2 sprccket

drive

outof alignment

4. Film teader

too sofit

l. Film leadcr not trimmed

properly

2. Endof filmis

severely

curled,

..1

ortwrstedl

3.Verysoft'leader

4.+1 film guide

shaftloose

bent

5.Aperture

plate

assembly

rnis-

aligned.

-1.

Inner guiderail bent or nof

aligned

correctly

2. Loose

guidc

rail

screws

3. Film leader end severely

curled

or twisted.

1.Re-insertthe

film correctly

2.Check& adiust

(See

Sec5-5-81).

3.Check alignrnent.

of the ten-

sion

guide

rollers

(See

Sec5-5-86)

4. Check with anothcr fiIm

leader.

-l

.Trim and

repeatthreading

2. Straighten

andre-thread

3. R.eplaceleader

4. Re-align

andcheck.

(See

Sec5-5-82)

5. Rc-align

andchBck

{See

Sec

4-f }. ,

l. Afignor replace

(Sec

Sec

4-5)

2.Tighten

{See

Sec4-5)

3.Trim andre-thread

1.Film leader not trimmed

properly

2. Leadcr is severelycurled or

twisted,

or too soft

3-Too much t#'l film shoc

clearance

4. Dirty and obstrusted

garc

5. lnsufficientsidetravel

inner

guide

rail af the

6.Side pressure

spring

tension

too strong

7. Film shoe is not rctracted

during

threading

1.Trim

2.Trim, straightcn

or replace

3.Check& adiust

(See

Sec.5-5"81)

Clean& check

5.Check& adjust

{See

Sec

4-5}

6.Check& adiust

(See

Sec

45}

7.Check& adjust

(See

Sec

4-5)

film

-5-

SYMPTOM

11,

Chattering noise during

threading

12^Clicking

noiseduringthread-

ing

13.

Curled film goesover the

loopsetterroller i

14.Film goes

underthe #3 film

guide

or comes

out

15.Film

willnotthread

overthe

s*und

drum'

18.Self-threading

mechanism

nor

released

with a tug on the

film

(sELF-TH

READt

SYSTEM)

PROTJABLE

CAUSE

'1.

Claw is Rot completely

retracted

1.Claw is

blade hitting the rhutt";

1.Loop

low setter position is too

2.Severelycurled

film

1.#2 Filmguide

defective

2.#3 Film

guide

defective

3. #? and

#3 film guides

aren+t

aligned

4.Curledfilm

1. Releasebracketspringis too

weakor broken

2.Releasebracket

pinbinding

I. #2 sprocket

plate

isloose 1.Tighten

andchecktiming

2.#2 sprocket

qhoe

spring

weak (See

Sec5-4)

2.Check

& replace

or mlssrng {SeeSee5-5-87)

"ff" $tri€t

REMEDY

1.Check& adjust

{See

Sec5-5-83}

1"Check

& adiust

(See

Sec

5-5-83)

1.Check

& ad

just

(See

Sec54)

2.Straighten

the lcadend

1.Replace

2. Repface

3.Chedk

& adiust

{See

Sec5-5-84)

4. Straighten

thelead

end

1. Remove & inspect the cait-

'r*g

guides

2. Check& adjust.

(See

Sec

5-5-85)

3.Check,

adiustand

lubrieate

{See

Sec

5-5-85)

1.Remove

the lamp

house

ingandinspect

2.Tighten andre-time

{See

SeE5-4}

3-Checkfor correct film feed-

ing from the sounddrurn t0

the

#? sprocket.

(See

Sec

5-5-86)

4. Checkandadjust

(See

Sec

5-5.87)

1.Check& udiurt

{See

Sec

5-5-B)

?. Lubricate pin and adjust

linkage

{See

Sec

5-5-B}

Check& adiust.

?.Stretch, or replacethe fifrn

leader.

l. Rough surface

on the lamp

house

casting,restricting

the

film ravel

2. Rubber

pinch

roller

not com-

pletely released from the

sounddrum

3. Rubber pinch roller bound

upor eut of alignment

'16.

Fifrnstopsat the #? sprocket I. Roughsurfacaor restriction

to the film pathon thelamp

housecasting

2. #2 spracket reeth or cover

plateloose.

3.Tension guide and roller

assembiyout of alignment

4. #2 sproeket

shoeclearanceis

too righr.

17.Film comes sut sf the #2

sprocket

shoe

19.Film dcesnct crosgthe

auto-

take-uP

guide :.

{NST

only) i

Auto-take-up

guide

notalign-

edproperly

2.Fifm

twisted,orcurled

-6-

1.Still pictureleverengaged

2-Broken or defrctive motor

belt

3.Camtank plate

washer

loose

4. Motor pulleyloose

5. Maindrive

belt broken

SYMPTOM

20.Pilot lamp o*, motor run$

but

filmdoes

not

advance

lll: MECHANICAL

SYSTEM

SROBAALE

CAUSE

"t" $gfiar

REMEDY

1. ReJeasete normal run posi-

tion

?.Check

& replace

3.Tighten (See

Sec

4-1-B)

4. Tighten

5" Replace

l. Check& reinstall

2. Replacewith correctpulleys

(See

Sec

4-3-D)

-!.Remove,

lubricatearid

adiust

(See

Sec5-5-85l

2.Check& adju+r

{See

See

s-5-86).

3,Check

&adjust

{See

Sec5-5-87}

1. Lubricate

cark

{See

Sec5-1}

2. Cleanor rcplzce.

{See

Sec5-l

}

l. Check& adjust

{See

Sec

5-3}

X.Replace

or cle+$.

?. Replace.

3. Tighten

screw.

4. Clean

or rbphce

5. Avoid over-lubricatien

6. Check & repface, or reposi-

tionclutchcam.

{See

Sec

5-l}

7. Check & absorb extra. film

slack.

1-Replace

?.Clean

or replace

3.Check

& repair{See

Sec

5-3}

4. Tightenknurlednut

{See

Sec5-3}

21.Filmspeed

fast

??. Film comes

out of ehe

near

thesounddrum

23.Excessive

take-up

"forivardl

24. Excessive

take-up torgue

"rgvel5g"

25.Take-up

Foor cr not at all in

"forward"

26-

Take-up

poor or not at all in

"fgveFsett

istoo slow or too 1.Beltisinstalled

incorrectly

?.Incorect motorandshutter

pulley

combination

'J4... 1 E',.t-lrF- -:6^t -^tt^- t- L:^..f

r. rassg!t lrltrlta lvttvt aJ uf au-

ing

2-Rubber roller and tension

gukle out of alignment

3.#? sprocket

shoenot s€ating

properly

torque in "l

- Dry corkof spindleassy

2. Dirty or sticky take-up

belt,

or take-up

pulley

1. Reverse clutch spring

str$ng

Take-up,arm

belt broke*,or

stretched,

or oily belt.

?. Defective

ball bearing.

3- Lsose

spindle

shaft

4-Take-up

pulleybiading

5" Excessive

greasr-

on take-up

pufley

6. Clutchcamdefective.

7,Tos loosefilm on thetake-up

reel

i. Brokenor $retched or oily

supply

arrnbelt

?. Reversebeltbrakenar oily

3.Clutch

camnct engaging

4. Reverse

ciutchspring

weak

-7-

SYMPTOM

TMECHANTCAL

SYSTEI}T)

.PROBAELE

CAUSE

the '1.

Reverseclutch cover pulley

"il- SHfoi

REMEDY

l. Check & ad

just;

or replace-

{See

Sec

5-3}

2-Check& adjust.

{See

Sec5-1

}

3. Cbeck & reposition, or re-

place.

{See

Sec

5-1}

4.Check& adjust

l. Check& clean,

oradjust-

{See

Sec5-3}

2-Cheek& reposition

(See

Sec5-1

)

S.Check& replaee

27.Weak back

supplyrselintension of

"forward" bindingand

clutchcamisnot

releasing, or clutch caver

pulleydefective

28-Weak back tension of the

take-upreelin l'revgrse"

?9. Loop lsstter roller sontinr,res

to activate, or activates

er-

raticallyin "forward"

?. Clutch cover pulley has nc

end play

on the #'l sprocket

drumshaft.

3. Clutch cam seatedineorrect,

or defective

4.Clutchcam bindingbetween

clutch coyer pulfey and

spacer

Drive

gear

is binding,

or has

no end play on the drive

pullbyshaft.

2-Clutch cam seatedincorrect,

or bindingbetwcendrive

gear

and clutch cov€r assy,or

defective

clutchcam

3-Drive gedr,

ar clutch cover

defective

1.Damaged

or paarfilm

2. Insufficient

gear

springten-

sion r

3. Loop setterl roller in the

wrong

position-

4. #2sprocket plate

loose

5'.

Lowerloopistoc'small

6. Insufficient

clawprotrusion,

or claw

pitch.

7-Broken

claw

8. Too muchtake-uptension

9. Incorrect cldarance

between

the laop setter

gear

andmain

drive

belt

10. Loop setter gear, or main

drive

beltdefective,orbroken

1I . Insufficient tension of the

film shaesprings

1.Repair.cr

repface

2.Stretchor replace

{See

5ec

5-4-B}

3. Relosate& ehdck

{See

Sec

54}.

4. Check

& {ghte;n

5.Check

#2.sp1o.1r*t

timing

{See

Sec54-B).

6.Check

{See

Sec

4-1-DI

}

7-Cheek& replaee

8-Check & lubricate take-up

spindlecork

{See

Sec

5-1

}

9.Adiuslclearance

(See

Sec5-41

10-Replace

11.

Stretch

orreplace.

-8-

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