Hitachi CM2073A User manual

MODEL

CM2073A

(For

Europe)

OPERATING

GUIDE

GENERAL

The

CM2073A

is an ultra high resolution colour display designed for

CADKAMKAE

engineering and workstation use.

CM2073A’

key features

are=

*Ultra-high resolution

up to 1280 dots X 1024 lines

*Sharp focus by in-line high resolution CRT 20 inch

(19V)

with a

0.311~1

dot pitch matrix.

*Bright colour picture with low distortion due to the use of an

efficient high performance deflection yoke.

*Compact chassis and low power consumption with switching power

supply and self converging system.

*Ergonomically designed cabinet with tilt and swivel stand.

Bescheinigung des Herstellers

Importeurs

Hiermit wird bescheinigt,

da13

der

die

das Farbmonitor, Model1

CM2073A

(Gerat,

Typ, Bezeichnung) in

ubereinstimmung

mit den Bestimmungen der

Amtsbl.

163/1984

Vfg.

1046/1984

der Deutschen Bundespost

(Amtsblattverfugung)

funk -

entstdrt

ist.

Der Deutschen Bundespost wurde das Inverkehrbringen dieses

Gerites

angezeigt und die Berechtigung zur

uberprtifung

der Serie auf

Einhaltung der Bestimmungen

eingertiumt.

Hitachi Sales Europa

GmbH

WPOWER

SOURCE

This colour display is designed to operate on

220/240

volts 50 Hz,

AC. Insert the power cord plug into a

220/240

volts 50

safety

grounded outlet.

DO NOT CONNECT THE DISPLAY TO OTHER THAN THE SPECIFIED VOLTAGE.

Never remove the back cover of the display as this can expose you

to very high voltage and other hazards. If the display does not

operate properly, unplug the display and call your dealer.

NOTE :

1. This colour display is equipped vith a three-vire type

plug. This plug will only fit into a grounding-type

power outlet. This is a safety feature, do not defeat

the safety purpose of the grounding-type plug.

2. If the power cord or plug is damaged or frayed, replace

it.

3. Do not overload wall outlets or extension cords as this

can result in fire or electric shock.

TO PREVENT SHOCK OR FIRE HAZARD,

DO NOT EXPOSE THIS DISPLAY TO

RAIN OR MOISTURE..

CAUTIONS ON USE

CAUTIONS ON THE SUPPLY

VOL-

When the power voltage is

extremely high or low, it may

cause trouble or it may not give

optimum performance. Consult your

dealer at that time.

KEEP WATER OUT

When water of liquid enters the

set, it becomes dangerous to use

the unit. Immediately pull the

plug out and contact your dealer.

KEEP IN A WELL VENTILATED PLACE

Ventilation holes are provided in

the cabinet to prevent the

temperature from rising. Do not

place the unit in a place badly

ventilated or cover the unit with

materials such as clothes.

HIGH TEMPERATURE CAUSES TROUBLE

Avoid placing the unit in direct

sunshine, near a heating

appliance.

WHEN BEHAVIOUR IS ABNORMAL

When any abnormal sound, odour or

smoke is generated, push the

power switch off, pull the power

plug out from the socket and

contact your dealer.

CAUTIONS

TREATING THE SURFACE

Do not wipe the surface of the

set using volatile liquids such

as benzine or thinners, or any

chemically treated cloth; do not

apply insecticide. It may damage

the surface or cause peeling-off

of the paint. When a vinyl

product is kept in contact with

the surface for a long time,

stains may occur.

BE CAREFUL OF MAGNETISM

Do not bring materials which

generate magnetism, such as a

magnet, printers, floppy discs,

or transformers etc. nearby: the

set may be affected by magnetism,

causing

colour

disturbance or

picture distortion etc.

LOCATION OF CUSTOMER CONTROLS

[FRONT

vmwl

BRIGHTNESS CONTROL

CONTRAST CONTROL

DEGAUSSING SWITCH

POWER SWITCH

“0"

means power on.

“I" means power off.

POWER INDICATOR

(This illuminates

when power is on.)

Fig. 1

CONTRAST AND BRIGHTNESS CONTROLS

These may be adjusted by releasing the push in/out rotary controls.

DEGAUSSING SWITCH

This display is equipped with an automatic degaussing circuit (This

circuit operates when power is switched

on).

If the display is turned

horizontally and picture colour becomes un-uniform, push this switch

to get fine colour uniformity. Picture may become still after some ten

seconds.

[REAR

VIEW]

R.G.B. SIGNAL INPUT

FUSE

F901

SYNC SIGNAL INPUT

(Some displays

are not equipped

with this sync.

input and 75 OHM

terminator.)

AC CORD INLET

175 OHM TERMINATORS

Fig. 2

FUSE

F901

Please always use

4A/25DV

IEC type fuse, (contact service personnel).

SIGNAL CABLE CONNECTION

Connect R.G.B. signal BNC connectors to the signal input. When one

display is used, the 75 OHM terminator must be connected to

yout"

BNC

connector (see Fig.4

When two more displays are used at the same

time (loop through state) see Fig.6 for connecting cables.

[SIGNAL

CABLE CONNECTION)

from signal

generator

75 OHM terminator

(must be connected)

Fig. 3 75 OHM terminator connection

(side view)

from signal generator

Fig. 4 cable connection

(rear view)

,,,,/

/$TK~-'-j

to next display

Fig. 6 2 more displays case

(loop through state) signal cable

Fig. 5 terminator not connected

VIDEO INPUT SIGNAL TIMING

CHART-

1. SEPARATE SYNC

**********in case of

CM2073AME-S-315

R.G.B. signal (analogue)

(HORIZONTAL) (VERTICAL)

.---

(R.G.B.)I

r;/;ELHy-

i.S

’

p-20.47-

(unit:

pS)

p813H-d

(unit: H)

Fig. 7 Fig. 8

2. SYNC. ON

GREEN**********in

case of

CM2073A-312/315

CM2073AME-S-315

Green Signal

/-f11.5c120.47pJ

(unit:

pS)

J-

(unit: H)

Fig. 9

INSTALLATION INSTRUCTIONS

FOR DEALERS

ADJUSTMENTSFORTHE

CM2073A

ONINSTALLATION

This document lists the

ad.iustmcnt

fcat,rlrrs of thr

20738

available to

the dealer. Other

ad.justment.s

exist

which

are

not readily accessible

and should not be attempted by untrained personnel.

The

CM2073A

comes in various configurations including displays for

line rates of nominal

50kHz

and

60kHz

operations, line synchronisation

on the green video

drive9

separate line synchronisation, with or

without D.D.C. (Dig:ital Dynamic Convergence) and models with internal

timing to preferred video driving boards.

Before any of the adjustments below are attempted, please ensure that

the model has been chosen appropriately from the options listed on

page 16 of the operating guide.

The adjustments listed in this note permit some deviations from this

table, but it is important that the most appropriate model be chosen.

ADJUSTMENTS

Before attempting any of the following adjustments, the display should

be powered up for a period of 15 minutes prior to the

ad-justment.

1. Switch on the

power9

noting that. the green power indicator adjacent

.:.

to the power switch comes on, If it does not;

Check power source and connections

Check fuse

Call a service engineer

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