Toei KH-90 User manual

OPERATION

MANUAL

FOR

DISPLAY

MONITOR

Thank

you

very

much

for

your

purchasing

TOEI

Monitor.

Please

read

this

operation

manual

for

your

correct

operation

defore

switch-on.

Transisterized

and

reliable

design

can

make

free

Toei

Monitors

from

troubles,

and

stabilization

the

circuit

contributes

make

stable

and

clear

Video-Screen

even

the

case

that

variation

power

supply-voltage

and

ambient

temperature

would

occure.

Thoughtful

consideration

also

given

making

easy

operation

Model

KH-90

Series.

Vertical

gradient

front

panel

keeps

operators

easy

view

the

screen

and

positions

knobs

are

also

considered

for

easy

operation.

KH-90

Series

are

employing

Green

Display

CRT

which

can

protect

operators’

eyes

from

fatigue

long

time-

operation,

and

from

reflection

outside

light.

The

design

put

importance

users

standpoint

operation.

Video

input

connectors

are

set

the

rear

panel

for

further

giving

play

motive

power.

Video

output

connectors

make

KH-90

Monitors

poss¬

ible

for

bridge-operation

which

make

users

possible

see

same

screen

several

Monitors

simultaneously.

main

circuit

contained

piece

Board,

and

connected

with

connectors,

maintenance

and

technical

checking

are

easy

done.

Picture

Tube

9”,

90°,

P3I,

Non-Glare

Power

Supply

100,

II7,

220,

240V,

32W

Input

Impedance

High

Impedance

Ohm

changeable

switch

Input

Signal

Composite-Video

Signal

1.0

—

OVp-p

Scanning

Frequency

Horizontal

75KHz

+500Hz

Vertical

50/60Hz

Video

Bandwidth

20MHz

and

(+ldb

-3db)

Numbers

Charactors

000

Charactors

(80X25

lines)

Deflection

Tolerance

Horizontal

Vertical

Size

Display

about

l50mm(W)

IOSmm(H)

Audio-Input

IVp-p

(KH-90A

only)

Audio-output

(KH-90A

only)

Ambient

Condion

—

0°

C—

(Temperature)

20%-80%

(Humidity)

Connectors

Pinjack

pcs.

Size

External

266mm(W)

23lmm(H)

275mm(D)

Weight

5Kg

net

Workin

Indication

Lamp

Power

Switch

Volume

Contrast

Control

Brightness

Control

Vertical

Height

Vertical

Linearity

Screws

removed

for

maintenace

Indication

Lamp

Green

Lamp

Indicates

switch-on

when

switch

turn

clockwise.

Power

Supply

Switch

(1)

For

Model

KH-90

Switch-on

when

switch

turn

clockwise

and

Switch-off

when

switch

turn

counter-clockwise.

(2)

For

Model

KH-90A

Switch-on

Power

Supply

and

Volume

when

switch

turn

clockwise

and

sound-volume

become

further

great

turning

the

knob

clockwise.

Contrast

Control

When

the

picture

contrast

too

weak

too

strong,

adjust

“CONTRAST"

Control.

Brightness

Control

Brightness

becomes

light

when

the

Control-Knob

turn

clockwise,

and

becomes

dark

when

the

Control-Knob

turn

counter-clockwise.

Audio

Input

Terminal

This

Terminal

for

connecting

Audio-Signal,

and

the

left

Terminal

for

Bridge-Connection.

Video

Input

Terminal

This

Terminal

for

connecting

Video

Signal,

and

the

left

Termination

for

Bridge-Connection.

Ohm

Termination

Control

Switch

Switch-on

when

Video

Output

Impedance

epuipments

connected

Ohm

and

lower,

and

Switch-off

when

the

Video

Output

Impedance

higher

than

Ohm.

Vertical

Hold

When

the

picture

overlapped

rolling

dowh,

adjust

HOLD

Control

until

the

picture

becomes

stable

with

minus

screw

driver.

Vertical

Height

Control

(adjusted)

Turn

clockwise

when

vertical

amplitude

small

and

turn

counter-clockwise

when

vertical

amplitude

great.

10.

Vertical

Linearity

(adjusted)

When

the

pattern

distorted

the

top

bottom

portion,

adjust

LINEAR

Control.

11.

Horizontal

Hold

Control

When

the

picture

off

set,

stpipes

and

bars

appear,

adjust

HOLD

Control.

12.

Focus

Contorol

When

the

picture

blurred

out

Focus,

adjust

FOCUS

Control.

13.

Maintenace

and

Technical

Checking

Rear-cover

can

removed

when

pcs.

screw

and

nuts

are

removed.

Recommended

Signal

and

Timing

Chart

Synchro-negative

fr—

(H)

Sync.

4.53//S

£T'T

4.53

wsl_19.07//S

fc-

-45.35/is

Display

63.5

(

Deflection

Freq.

15.75

KHz

1.02.0v

2.0ms

1.0ms

(32H)

(16H

)

<v)

►

Deflection

Freq.

12.7

16.26ms

(

256H-)

Attention

Please

pay

your

attention

when

anothor

signal

excepting

for

recommended

signal

input,

there

are

cases

that

normal

Video

Display

does

not

appear.

There

occures

case

that

when

same

charactors

would

displayed

for

long

hours

time,

burned

marks

would

left

the

screen

the

CRT.

Make

Contrast

Control

and/or

Brightness

down

lower

possible.,

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