NEC NEC MultiSync LCD1550V LCD1550V LCD1550V User manual

COLOR MONITOR MultiSyncLCD1550V
MODELS LCD1550V-1 (B)/-BK(B)
200206
08109741
08109742
SERVICE MANUAL
PART NO. 599910588
NEC-MITSUBISHI ELECTRIC VISUAL SYSTEMS CORPORATION
JUNE 2002
This model changed a LCD panel (manufactured by Hannstar) from the original model.
Use the applicable service manual which surely confirms the model number of the
NAME PLATE, INSTRUCTION.
Refer to the page which the point of view of the model number is mentioned in.
•Model number : LA-15R02 / LA-15R02-BK
Maintenance is performed by the original service manual (Part No.
599910571).
•
Model number : LA-15R02-1 / LA-15R02-1-BK
Maintenance is
p
erformed usin
g
this service manual.
All manuals and user guides at all-guides.com
all-guides.com

WARNING
The SERVICE PERSONNEL should have the appropriate technical training, knowledge and experience
necessary to:
•Be familiar with specialized test equipment, and
•Be careful to follow all safety procedures to minimize danger to themselves and their coworkers.
To avoid electrical shocks, this equipment should be used with an appropriate power cord.
This equipment utilized a micro-gap power switch. Turn off the set by first pushing power switch. Next,
remove the power cord from the AC outlet.
To prevent fire or shock hazards, do not expose this unit to rain or moisture.
This symbol warns the personnel that un-insulated voltage within the unit may have sufficient
magnitude to cause electric shock.
This symbol alerts the personnel that important literature concerning the operation and
maintenance of this unit has been included.
Therefore, it should be read carefully in order to avoid any problems.
PRODUCT SAFETY CAUTION
1. When parts replacement is required for servicing, always use the manufacturer's specified replacement.
2. When replacing the component, always be certain that all the components are put back in the place.
3. As for a connector, pick and extract housing with fingers properly since a disconnection and improper
contacts may occur, when wires of the connector are led.
4. Use a proper screwdriver. If you use screwdriver that does not fit, you may damage the screws.
All manuals and user guides at all-guides.com

Point of view of the model number
NAME PLATE, INSTRUCTION (White model)
NAME PLATE, INSTRUCTION (Black model)
Model number
Original model: LA-15R02
Hannstar LCD model: LA-15R02-1
Model number
Original model: LA-15R02-BK
Hannstar LCD model: LA-15R02-1-BK
All manuals and user guides at all-guides.com

CONTENTS
Page No.
USER'S MANUAL ------------------------------------------------------------------- 1-1
SERIAL NUMBER INFORMATION --------------------------------------------- 2-1
DISASSEMBLY ----------------------------------------------------------------------- 3-1
ADJUSTMENT PROCEDURES -------------------------------------------------- 4-1
INSPECTION --------------------------------------------------------------------------- 5-1
TROUBLE SHOOTING ------------------------------------------------------------- 6-1
CIRCUIT DESCRIPTION ----------------------------------------------------------- 7-1
REPLACEMENT PARTS LIST --------------------------------------------------- 8-1
BLOCK DIAGRAM ------------------------------------------------------------------- 9-1
SCHEMATIC DIAGRAMS -------------------------------------------------------- 10-1
All manuals and user guides at all-guides.com

1-1
USER'S MANUAL
MultiSync LCD1550V
User’s Manual
UÏivatelská pfiíruãka
Bedienerhandbuch
Οδηγίες Χρήσης
Manual del usuario
Manuel Utilisateur
Manuale utente
Gebruikershandleiding
Podr´cznik u˝ytkownika
Руководство пользователя
Kullan∂c∂ Klavuzu
All manuals and user guides at all-guides.com

1-2
Declaration
Declaration of the Manufacturer
We hereby certify that the colour monitor
MultiSync LCD1550V (LA-15R02)
MultiSync LCD1550V (LA-15R02-BK)
MultiSync LCD1550V (LA-15R02-1)
MultiSync LCD1550V (LA-15R02-1-BK)
is in compliance with
Council Directive 73/23/EEC:
– EN 60950
Council Directive 89/336/EEC:
– EN 55022
– EN 61000-3-2
– EN 61000-3-3
– EN 55024
and marked with
NEC-Mitsubishi Electric Visual Systems, Corp.
MS Shibaura Bldg., 13-23,
Shibaura 4-chome,
Minato-Ku, Tokyo 108-0023, Japan
All manuals and user guides at all-guides.com
all-guides.com

1-3
TCO’99
This is a translation of the original English TCO'99 document.
MultiSync LCD1550V White Model (LA-15R02 and LA-15R02-1)
Congratulations! You have just purchased a TCO’99
approved and labeled product! Your choice has
provided you with a product developed for
professional use. Your purchase has also contributed
to reducing the burden on the environment and also
to the further development of environmentally
adapted electronics products.
Why do we have environmentally labelled computers?
In many countries, environmental labelling has become an established
method for encouraging the adaptation of goods and services to the
environment. The main problem, as far as computers and other
electronics equipment are concerned, is that environmentally harmful
substances are used both in the products and during the manufacturing.
Since it has not been possible for the majority of electronics equipment
to be recycled in a satisfactory way, most of these potentially damaging
substances sooner or later enter Nature.
There are also other characteristics of a computer, such as energy
consumption levels, that are important from the viewpoints of both the
work (Internal) and natural (external) environments. Since all methods of
conventional electricity generation have a negative effect on the
environment (acidic and climate-influencing emissions, radioactive
waste, etc.), it is vital to conserve energy. Electronics equipment in
offices consume an enormous amount of energy since they are often left
running continuously.
What does labelling involve?
This product meets the requirements for the TCO’99 scheme which
provides for international and environmental labelling of personal
computers. The labelling scheme was developed as a joint effort by the
TCO (The Swedish Confederation of Professional Employees), Svenska
Naturskyddsforeningen (The Swedish Society for Nature Conservation)
and Statens Energimyndighet (The Swedish National Energy
Administration).
All manuals and user guides at all-guides.com

1-4
The requirements cover a wide range of issues: environment,
ergonomics, usability, emission of electrical and magnetic fields, energy
consumption and electrical and fire safety.
The environmental demands concern restrictions on the presence and
use of heavy metals, brominated and chlorinated flame retardants,
CFCs (freons) and chlorinated solvents, among other things. The
product must be prepared for recycling and the manufacturer is obliged
to have an environmental plan which must be adhered to in each
country where the company implements its operational policy. The
energy requirements include a demand that the computer and/or
display, after a certain period of inactivity, shall reduce its power
consumption to a lower level in one or more stages. The length of time
to reactivate the computer shall be reasonable for the user.
Labelled products must meet strict environmental demands, for
example, in respect of the reduction of electric and magnetic fields,
physical and visual ergonomics and good usability.
Environmental Requirements
Flame retardants
Flame retardants are present in printed circuit boards, cables, wires,
casings and housings. In turn, they delay the spread of fire. Up to thirty
percent of the plastic in a computer casing can consist of flame
retardant substances. Most flame retardants contain bromine or chloride
and these are related to another group of environmental toxins, PCBs,
which are suspected to give rise to severe health effects, including
reproductive damage in fisheating birds and mammals, due to the
bioaccumulative* processes. Flame retardants have been found in
human blood and researchers fear that disturbances in foetus
development may occur.
TCO’99 demand requires that plastic components weighing more than
25 grams must not contain flame retardants with organically bound
chlorine and bromine. Flame retardants are allowed in the printed circuit
boards since no substitutes are available.
Lead**
Lead can be found in picture tubes, display screens, solders and
capacitors. Lead damages the nervous system and in higher doses,
causes lead poisoning.
TCO’99 requirement permits the inclusion of lead since no replacement
has yet been developed.
All manuals and user guides at all-guides.com

1-5
Cadmium**
Cadmium is present in rechargeable batteries and in the
colourgenerating layers of certain computer displays. Cadmium
damages the nervous system and is toxic in high doses.
TCO’99 requirement states that batteries, the colourgenerating layers of
display screens and the electrical or electronics components must not
contain any cadmium.
Mercury**
Mercury is sometimes found in batteries, relays and switches, Mercury
damages the nervous system and is toxic in high doses.
TCO’99 requirement states that batteries may not contain any Mercury.
It also demands that no mercury is present in any of the electrical or
electronics components associated with the display unit.
CFCs (freons)
CFCs (freons) are sometimes used for washing printed circuit boards.
CFCs break down ozone and thereby damage the ozone layer in the
stratosphere, causing increased reception on Earth of ultraviolet light
with consequent increased risks of skin cancer (malignant melanoma).
The relevant TCO’99 requirement; Neither CFCs nor HCFCs may be
used during the manufacturing and assembly of the product or its
packaging.
* Bio-accumulative is defined as substances which accumulate within
living organisms.
** Lead, Cadmium and Mercury are heavy metals which are
Bioaccumulative.
To obtain complete information on the environmental criteria document,
order from:
TCO Development Unit
SE-114 94 Stockholm
SWEDEN
FAX Number: [phone]
E-mail (Internet): [e-mail]
You may also obtain current information on TCO’99 approved and
labelled products by visiting their website at:
http://www.tco-info.com/
All manuals and user guides at all-guides.com

1-6
TCO’95
This is a translation of the original English TCO'95 document.
MultiSync LCD1550V Black Model (LA-15R02-BK and LA-15R02-1-BK)
Congratulations! You have just purchased a TCO’95
approved and labeled product! Your choice has
provided you with a product developed for
professional use. Your purchase has also
contributed to reducing the burden on the
environment and also, to the further development of
environmentally adapted electronics products.
Why do we have environmentally labelled computers?
In many countries, environmental labelling has become an established
method for encouraging the adaptation of goods and services to the
environment. The main problem, as far as computers and other
electronics equipment are concerned, is that environmentally harmful
substances are used both in the products and during the manufacturing.
Since it has not been possible for the majority of electronics equipment
to be recycled in a satisfactory way, most of these potentially damaging
substances sooner or later enter Nature.
There are also other characteristics of a computer, such as energy
consumption levels, that are important from the viewpoints of both the
work (Internal) and natural (external) environments. Since all methods of
conventional electricity generation have a negative effect on the
environment (acidic and climate-influencing emissions, radioactive
waste, etc.), it is vital to conserve energy. Electronics equipment in
offices consume an enormous amount of energy since they are often left
running continuously.
What does labelling involve?
This product meets the requirements for the TCO’95 scheme which
provides for international and environmental labelling of personal
computers. The labelling scheme was developed as a joint effort by the
TCO (The Swedish Confederation of Professional Employees),
Naturskyddsforeningen (The Swedish Society for Nature Conservation)
and NUTEK (The National Board for Industrial and Technical
Development in Sweden).
The requirements cover a wide range of issues: environment,
ergonomics, usability, emission of electrical and magnetic fields, energy
consumption and electrical and fire safety.
All manuals and user guides at all-guides.com

1-7
The environmental demands concern restrictions on the presence and
use of heavy metals, brominated and chlorinated flame retardants,
CFCs (freons) and chlorinated solvents, among other things. The
product must be prepared for recycling and the manufacturer is obliged
to have an environmental plan which must be adhered to in each
country where the company implements its operational policy. The
energy requirements include a demand that the computer and/or
display, after a certain period of inactivity, shall reduce its power
consumption to a lower level in one or more stages. The length of time
to reactivate the computer shall be reasonable for the user.
Labelled products must meet strict environmental demands, for
example, in respect of the reduction of electric and magnetic fields,
physical and visual ergonomics and good usability.
TCO’95 is a co-operative project between TCO (The Swedish
Confederation of Professional Employees), Naturskyddsforeningen
(The Swedish Society for Nature Conservation) and NUTEK
(The National Board for Industrial and Technical Development in
Sweden).
Environmental Requirements
Brominated flame retardants
Brominated flame retardants are present in printed circuit boards,
cables, wires, casings and housings. In turn, they delay the spread of
fire. Up to thirty percent of the plastic in a computer casing can consist
of flame retardant substances. These are related to another group of
environmental toxins, PCBs, which are suspected to give rise to similar
harm, including reproductive damage in fisheating birds and mammals,
due to the bio-accumulative* processes. Flame retardants have been
found in human blood and researchers fear that disturbances in foetus
development may occur.
TCO’95 demand requires that plastic components weighing more than
25 grams must not contain organically bound chlorine and bromine.
Lead**
Lead can be found in picture tubes, display screens, solders and
capacitors. Lead damages the nervous system and in higher doses,
causes lead poisoning.
TCO’95 requirement permits the inclusion of lead since no replacement
has yet been developed.
All manuals and user guides at all-guides.com
all-guides.com

1-8
Cadmium**
Cadmium is present in rechargeable batteries and in the
colourgenerating layers of certain computer displays. Cadmium
damages the nervous system and is toxic in high doses.
TCO’95 requirement states that batteries may not contain more than
25 ppm (parts per million) of cadmium. The colourgenerating layers of
display screens must not contain any cadmium.
Mercury**
Mercury is sometimes found in batteries, relays, switches, and back-light
systems, Mercury damages the nervous system and is toxic in high
doses.
TCO’95 requirement states that batteries may not contain more than
25 ppm (parts per million) of mercury. It also demands that no mercury
is present in any of the electrical or electronics components concerned
with the display unit, except the back-light system.
CFCs (freons)
CFCs (freons) are sometimes used for washing printed circuit boards
and in the manufacturing of expanded foam for packaging. CFCs break
down ozone and thereby damage the ozone layer in the stratosphere,
causing increased reception on Earth of ultraviolet light with consequent
increased risks of skin cancer (malignant melanoma).
The relevant TCO’95 requirement; Neither CFCs nor HCFCs may be
used during the manufacturing of the product or its packaging.
* Bio-accumulative is defined as substances which accumulate within
living organisms.
** Lead, Cadmium and Mercury are heavy metals which are
Bioaccumulative.
To obtain complete information on the environmental criteria document,
order from:
TCO Development Unit
SE-114 94 Stockholm
SWEDEN
FAX Number: [phone]
E-mail (Internet): [e-mail]
You may also obtain current information on TCO’95 approved and
labelled products by visiting their website at:
http://www.tco-info.com/
All manuals and user guides at all-guides.com

1-9
English
âesky
Deutsch
Ελληνικά
Español
Français
Italiano
Nederlands
Polski
Русский
Türkçe
All manuals and user guides at all-guides.com

1-10
English-1
English
TO PREVENT FIRE OR SHOCK HAZARDS, DO NOT EXPOSE THIS UNIT TO RAIN
OR MOISTURE. ALSO, DO NOT USE THIS UNIT’S POLARIZED PLUG WITH AN
EXTENSION CORD RECEPTACLE OR OTHER OUTLETS UNLESS THE PRONGS
CAN BE FULLY INSERTED.
REFRAIN FROM OPENING THE CABINET AS THERE ARE HIGH VOLTAGE
COMPONENTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
CAUTION
TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER
(OR BACK). NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING
TO QUALIFIED SERVICE PERSONNEL.
This symbol warns user that uninsulated voltage within the unit may have
sufficient magnitude to cause electric shock. Therefore, it is dangerous to make
any kind of contact with any part inside this unit.
This symbol alerts the user that important literature concerning the operation
and maintenance of this unit has been included. Therefore, it should be read
carefully in order to avoid any problems.
CAUTION
WARNING
RISK OF ELECTRIC SHOCK • DO NOT OPEN
Caution:
When operating the MultiSync LCD1550V with a 220-240V AC power source in Europe,
use the power cord provided with the monitor.
In the UK, a BS approved power cord with a moulded plug has a Black (five Amps) fuse
installed for use with this equipment. If a power cord is not supplied with this equipment
please contact your supplier.
When operating the MultiSync LCD1550V with a 220-240V AC power source in
Australia, use the power cord provided with the monitor.
For all other cases, use a power cord that matches the AC voltage of the power outlet
and has been approved by and complies with the safety standard of your particular
country.
E NERGY S TA R is a U.S. trademark.
As an E
NERGY S TA R
®
Partner, NEC-Mitsubishi Electronics Display of America, Inc. has
determined that this product meets the E
NERGY S TA R guidelines for energy efficiency.
The E
NERGY S TA R emblem does not represent EPA endorsement of any product or service.
IBM PC/XT/AT, PS/2, MCGA, VGA, 8514/A and XGA are registered trademarks of
International Business Machines Corporation.
Apple and Macintosh are registered trademarks of Apple Computer Inc.
Microsoft and Windows are registered trademarks of the Microsoft Corporation.
NEC is a registered trademark of NEC Corporation.
All other trademarks or registered trademarks are property of their respective owners.
All manuals and user guides at all-guides.com

1-11
English-2
Contents
Your new NEC MultiSync LCD monitor box* should contain the following:
• MultiSync LCD1550V monitor with tilt base
• Power Cord(s)
• Video Signal Cable
• User’s Manual
• CD ROM (includes complete User’s Manual in PDF format). To see
the User’s Manual, Acrobat Reader 4.0 must be installed on your PC.
* Remember to save your original box and packing material to transport
or ship the monitor.
1550V
All manuals and user guides at all-guides.com

1-12
English-3
English
Quick Start
To attach the MultiSync LCD monitor to your system, follow these
instructions:
1. Turn off the power to your computer.
2. Remove connector cover and cable cover.
3. For PC: Connect the 15-pin mini D-SUB of the appropriate
signal cable to the connector for the display card in your system
(Figure A.1). Tighten all screws.
For Mac: Connect the MultiSync LCD1550V Macintosh cable
adapter to the computer (Figure B.1). Attach the 15-pin mini D-SUB
end of the appropriate signal cable to the MultiSync LCD1550V
Macintosh cable adapter (Figure B.1). Tighten all screws.
4. Connect the 15-pin mini D-SUB of the video signal cable to the
appropriate connector on the back of the monitor (Figure C.1). Place
the Video Signal Cable under Clip B.
5. Connect one end of the power cord to the MultiSync LCD Series
monitor and the other end to the power outlet. Place the video signal
cable and AC power cord under the clips (Figure C.1). Replace
connector cover and cable cover.
NOTE: Adjust the position of the cable under the clips to avoid damage
for cable or monitor.
NOTE: Please refer to Caution section of this manual for proper
selection of AC power cord.
6. The Vacation Switch on the right side of the monitor must be turned
on (Figure D.1). Turn on the monitor with the Power Button and the
computer.
NOTE: The Vacation Switch is a true on/off switch. If this switch is on
the OFF position, the monitor cannot be turned on using the
front button DO NOT switch on/off repeatedly.
7. No-touch auto adjust automatically adjusts the monitor to optimal
settings upon initial setup for most timings. For further adjustments,
use the following OSM controls:
• Auto Adjust Contrast
• Auto Adjust
All manuals and user guides at all-guides.com
all-guides.com

1-13
English-4
Refer to the Controls section of this User’s Manual for a full description
of these OSM controls.
NOTE: If you have any problems, please refer to the Troubleshooting
section of this User’s Manual.
Figure B.1
Macintosh
Cable
Adapter
(not included)
Macintosh G3
and G4 do not
need a
Macintosh cable
adapter
Figure A.1
All manuals and user guides at all-guides.com

1-14
English-5
English
Tilt
Grasp both sides of the monitor screen with your hands and adjust the
tilt as desired (Figure TS.1).
Remove Monitor Stand for Mounting
To prepare the monitor for alternate mounting purposes:
1. Remove the connector cover and cable cover (Figure R.1).
2. Disconnect all cables.
3. Place monitor face down on a non-abrasive surface (Figure R.2).
Vacation Switch
Power Button
Figure C.1
1550V
Figure D.1
Connector cover
Cable cover
Clip B
All manuals and user guides at all-guides.com

1-15
English-6
Figure TS.1
Figure R.1
4. Remove the 4 screws connecting the monitor to the stand and lift off
the stand assembly (Figure R.2) the monitor is now ready for
mounting in an alternate manner.
5. Connect the AC cord and signal cable to the back of the monitor
(Figure R.3).
6. Reverse this process to reattach stand.
NOTE: Use only VESA-compatible alternative mounting method.
All manuals and user guides at all-guides.com

1-16
English-7
English
7. This LCD monitor is designed for use with a flexible arm. Please use
the attached screws (4pcs) when mounting. To meet the safety
requirements the monitor must be mounted to an arm which
guaranties the necessary stability under consideration of the weight
of the monitor. The LCD monitor shall only be used with an approved
arm (e.g. GS mark).
Figure R.2
Figure R.3
Non-abrasive
surface
All manuals and user guides at all-guides.com