Elmo ST-1200 Manuale utente

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BLlW:D

SERVICE

MANUAL

ST-1200

"::::./

~::,»~%

ELMO CO., LTO.

NAGOYA,

JAPAN

TABLE

CONTENTS

Rear

Arm

•••••••••••••••••••••••••••

Take-up

Guide

Lens

Holder

••••••••••••••••••••••••

DISASSEMBLY

FRONT

REAR

ARM

Front

Arm

PROJECTION

LAMP

LENS

Heat

Proof

Glass

Projection

Lamp

Page

Drive

Belt

Switch

Mechanism

•••••••••••••••••••

Clutch

•••••••••••••••••••••••••••••

TRANSFORMER

MOTOR

1• T

ran

form

••••••••••••••••••••••••

Motor

••••••••••••••••••••••••••••••

MACHINE

FRAME

Machine

Frame

••••••••••••••••••••••

Second

Sprocket

••••••••••••••••••••

SOUND

Amplifier

••••••••••••••••••••••••••

Head

Base

Plate

••••••••••••••••••••

Sound

Lens

•••••••••••••••••••••••••

Sound

Head

•••••••••••••••••••••••••

II.

TROUBLE

SHOOTING

lfRONT

REAR

ARM

••••••••••••••••••••••••••••

PROJECTION

LAMP

LENS

TRANSFORMER

MOTOR

•••••••••••••.•••••••••••

MACHINE

FRAME

SOUND

•••••••••••••••••••••••••••.••••••.••••

CONNECTING

DIAGRAM

FOR

MACHINE

••••••••••••••••••

SCHEMATIC

DIAGRAM

FOR

MACHINE

•••••••••••••••••••

SCHEMATIC

DIAGRAM

FOR

AMPLIFIER

•••••••••••••••••

VOLTAGE

CHECKING

POINTS

THE

CIRCUIT

PLATE

I •

DISASSEMBLY

ASSEMBLY

FRONT

REAR

ARM·

FRONT

ARM

(Fig.

Fig.

DISASSEMBLY

Take

out

attaching

screws

(Fig.l-l,x2)

and

remove

Front

arm.

Take

out

Reel

shaft

pins

(Fig.1-2,x2)

and

remove

Reel

shaft

assy.

Take

out

attaching

E-ring

(F~g.1-3)

and

remove

Reel

shaft

gear.

Take

out

attaching

screws

(Fig.1-4,x2)

and

remove Arm

gears

(x2).

5. Take

out

Arm

gear

shafts

(Fig.1-5,x2)

and

remove Arm

gears

(x2).

ASSEMBLY

the

assembling,

the

reverse

way

the

above

steps.

Lubricate

all

the

gears

with

aluminum

grease.

NOTE:

comparison

with

the

rear

arm,

Front

arm,

Front

arm

base

plate

and

Front

arm

shaft

gear

are

fundamentally

different,

but

otherwise

same.

-1-

FRONT

ARM

(Fig.

Fig.

DISASSEMBLY

Take

out

attaching

E-ring

(Fig.2-1).

Take

out

attaching

screws

(Fig.2-2,x2)

and

remove

Spring

adjusting

collar,

Reverse

slip

spring,

Pulley

washer,

Reverse

middle

gear

Friction

plate

Reverse

middle

gear

and

Reverse

gear

boss.

Take

out

attaching

E-ring

(Fig.2-3)

and

remove Rewind

gear.

Take

out

attaching

E-ring

(Fig.2-4)

and

remove

Reverse

middle

gear

well

Sprocket

shaft

inserted.

Take

out

attaching

E-ring

(Fig.2-5)

and

remove

Rewind

gear

holder.

Take

out

attaching

screw

(Fig.2-6)

and

Arm

lock

spring,

then

pullout

Front

arm

assy.

ASSEMBLY

the

assembling,

the

reverse

way

the

above

steps.

Lubricate

all

the

gears

with

Alvania

grease.

Adjust

the

rewinding

tension

the

front

arm

be 75

gr.

the

position

Spring

adjusting

collar.

Rewinding

tension

••

Tolerance

65-90

gr.

The

rewinding

time

should

within

100

sec.

with

400

feet

reel.

NOTE:

Pay

attention

for

the

attaching

direction

gears.

-2-

REAR

ARM

(Fig.

Fig.

DISASSEMBLY

Take

out

attaching

screw

(Fig.3-1)

and

remove

Take-up

middle

pulley

Take-up

pulley

washer

and

Take-up

belt.

Take

out

attaching

screw

(Fig.3-2)

and

remove

Spring

adjusting

collar,

Rear

pulley

shaft

spring,

Pulley

washer,

Rear

take-up

gear

and

Friction

plate

Pullout

(Fig.3-3)

and

remove

Friction

wheel

pulley.

Take

out

attaching

screw

(Fig.3-4)

and

Arm

lock

spring,

then

pullout

Rear

arm

assy.

ASSEMBLY

the

assembling,

the

reverse

way

the

above

steps.

Lubricate

Take-up

pulley

washer

and

the

teeth

Take-up

middle

pulley

with

Alvania

grease.

Adjust

the

take

tension

the

rear

arm

be 65

gr.

the

position

Spring

adjusting

collar.

Take up

tension

•••

Tolerance

55-80

gr.

NOTE:

When

replace

Take-up

belt,

take

out

just

attaching

screw

(Fig.3-1).

-3-

TAKE-UP

GUIDE

(Fig.4)

Fig.

DISASSEMBLY

Take

out

attaching

screws

(Fig.4-1,x2)

and

remove

Film

guide

Take

out

attaching

screw

(Fig.4-2)

and

remove

Take-up

guide

roller

Take

out

Take-up

guide

shaft

(Fig.4-3)

and

remove

Take-up

guide

and

Take-up

lock

spring.

Take

out

attaching

screw

(Fig.4-4)

and

remove

Release

switch

presser.

ASSEMBLY

the

assembling,

the

reverse

way

the

above

steps.

All

the

rollers

should

rotate

smoothly.

-4-

PROJECTION

LAMP

LENS

HEAT

PROOF

GLASS

(Fig.

Fig.

DISASSEMBLY

Push

lamp

cover

stopper

(Fig.5-1)

and

take

off

Lamp

cover.

Straighten

out

the

latches

(Fig.5-2,x4)

Heat

proof

glass

holder

and

take

out

heat

proof

glass

and

Heat

proof

glass

presser.

ASSEMBLY

the

assembling,

the

reverse

way

the

above

steps.

When

replace

heat

proof

glass,

which

divided

crack

should

not

captured

the

latches

Heat

proof

glass

holder.

-5-

PROJECTION

LAMP

(Fig.

Fig.

REPLACEMENT

Pullout

Lamp

socket

assy

(Fig.6-1)

from

Lamp.

Hold

the

Lamp

presser

(Fig.6-2)

Lamp

holder

(2)

assy

and

pullout

Lamp.

install

replacement

Lamp,

place

the

square

base

Lamp

into

the

hollow

and

push

the

reflector

into

the

metal

rim

Lamp

holder

(2)

assy.

obtain

the

sufficient

screen

brightness,

first

loosen

attaching

screws

(Fig.6-3,x4)

and

move Lamp

fixing

plate

and

Lamp

holder

(2)

assy

back

and

forth

and

down,

until

most

bright

and

leveled

screen

brightness

can

accomplished.

Screen

brightness

the

high

position

should

satisfied

undermentioned

specification.

NOTE:

Screen

Center

Screen

Corner

800

Lx.

min.

50%

the

center

brightness

not

touch

inside

the

Lamp

reflector

well

Lamp

itself.

Replacing

Lamp,

first

disconnect

Power

cord.

Life

the

Lamp

installed

averaged

hours

under

normal

projection.

Applied

voltage

the

lamp

should

14.3-15V

A.C.

high

position

and

12.3-13V

A.C.

low

position,

under

the

lamp

lighting

condition.

-6-

LENS

HOLDER

(Fig.

Fig.

DISASSEMBLY

Turn

Focusing

knob

fully

clockwise

and

pullout

Projection

lens.

Take

out

attaching

screws

(Fig.7-1,x2)

and

remove

Pressure

plate

assy

and

Pressure

plate

spring.

Take

out

attaching

screws

(Fig.7-2,x4)

and

remove

Pressure

plate

holder.

Strip

off

Focusing

plate

(Fig.7-3).

5. Take

out

Lamp

socket

holder

screw

(Fig.7-4)

and

remove

Focusing

knob.

6. Take

out

attaching

screws

(Fig.7-5,x2)

and

Focusing

guide

pin,

then

remove

Focusing

cam

mount,

Tube,

Focusing

spring

and

Focusing

cam.

Take

out

attaching

screws

(Fig.7-6,x2)

and

remove

Lens

holder

assy.

ASSEMBLY

the

assembling,

the

reverse

way

the

above

steps.

Lubricate

Focusing

cam

with

permalub

H3002

grease.

Lens

holder

assy

should

not

only

smoothly

move

back

and

forth

but

also

certainly

locked

Click

spring.

align

the

optical

axis,

first

pass

the

focusing

test

film

and

either

tighten

loosen

attaching

screw

(Fig.7-7)

obtain

evenness

focusing.

Then,

secure

the

screw

with

screw-tight.

NOTE:

Attach

Focusing

cam mount

the

stopper

(Protuberance)

Focusing

cam

mount

towards

lower

side.

-7-

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