Philips PT-LB51SU User Manual

Operating Instructions

LCD Projector

Commercial Use

Model No. PT-LB51NTU

PT-LB51U
PT-LB51SU

AUTO
SETUP

INPUT

SELECT

COMPUTER WIRELESS VIDEO

WIRELESS

PAGE

PRESENTATION

RETURN

MENU

ENTER

FREEZE SHUTTER

COMPUTER
SEARCH

DEFAULT

INDEX-

WINDOW

MULTI-LIVE

DIGITAL ZOOM VOLUME

Before operating this product, please read the instructions carefully and save this manual for future use.

TQBJ0228

ENGLISH

Information

Important Safety Notice

Important

Dear Panasonic Customer:

This instruction booklet provides all the necessary operating information that you might require. We hope it will help
you to get the most out of your new product, and that you will be pleased with your Panasonic LCD projector. The
serial number of your product may be found on its bottom. You should note it in the space provided below and retain
this booklet in case service is required.

WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DONOT EXPOSE THIS PRODUCT

Power Supply: This LCD Projector is designed to operate on 100 V - 240 V, 50 Hz/60 Hz AC, house current

CAUTION: The AC power cord which is supplied with the projector as an accessory can only be used for

Model number: PT-LB51NTU / PT-LB51U / PT-LB51SU

Serial number:

TO RAIN OR MOISTURE.

only.

power supplies up to 125 V, 7 A. If you need to use higher voltages or currents than this, you will
need to obtain a separate 250 V power cord. If you use the accessory cord in such situations, fire
may result.

The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the
user to the presence of uninsulated “dangerous voltage” within the product’s enclosure that may
be of sufficient magnitude to constitute a risk of electric shock to persons.

The exclamation point within an equilateral triangle is intended to alert the user to the presence of
important operating and maintenance (servicing) instructions in the literature accompanying the
product.

CAUTION: This equipment is equipped with a three-pin grounding-type power

plug. Do not remove the grounding pin on the power plug. This plug
will only fit a grounding-type power outlet. This is a safety feature. If
you are unable to insert the plug into the outlet, contact an electrician.
Do not defeat the purpose of the grounding plug.

Indication based on the German law "Geräte- und Produktsicherheitsgesetz”

Directive 2001/95/EC (Article 5);

Panasonic Marketing Europe GmbH
Hagenauer Str. 43 65203 Wiesbaden F.R.GERMANY

Do not remove

NOTICE:

A This product has a High Intensity Discharge (HID) lamp that contains mercury. Dispose may be regulated in

your community due to environmental considerations. For disposal or recycling information, please contact
your local authorities, or the Electronics Industries Alliance: http://www.eiae.org

ENGLISH - 2

Important Safety Notice

WARNING:

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part
15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in
a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not
installed and used in accordance with the instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation. If this equipment does
cause harmful interference to radio or television reception, which can be determined by turning the equipment off
and on, the user is encouraged to try to correct the interference by one or more of the following measures:

- Reorient or relocate the receiving antenna.

- Increase the separation between the equipment and receiver.

- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

- Consult the dealer or an experienced radio/TV technician for help.
FCC CAUTION: To assure continued compliance, use only shielded interface cables when connecting to

computers or peripheral devices. Any unauthorized changes or modifications to this
equipment will void the users authority to operate.
If you use serial port to connect PC for external control of projector, you must use optional
RS-232C serial interface cable with ferrite core. Any unauthorized changes or modifications
to this equipment will void the user’s authority to operate.

FCC RF Exposure Warning: (if provided with wireless device)

- This equipment complied with FCC radiation exposure limits set forth for an unconrolled environment.

- This equipment has been approved for mobile operation and requires minimum 20 cm spacing be provided
between antenna(s) and all person’s body (excluding extremities of hands, wrist and feet) during wireless
modes of operation.

- This equipment may not be used with other installed transmitters, which may be capable of simultaneous
transmission.

Important

Information

WARNING:

A Not for use in a computer room as defined in the Standard for the Protection of Electronic Computer/Data

Processing Equipment, ANSI/NFPA 75.

A For permanently connected equipment, a readily accessible disconnect device shall be incorporated in the

building installation wiring.

A For pluggable equipment, the socket-outlet shall be installed near the equipment and shall be easily

accessible.

Declaration of Conformity

Model Number: PT-LB51NTU / PT-LB51U / PT-LB51SU
Trade Name: Panasonic
Responsible party: Panasonic Corporation of North America
Address: One Panasonic Way, Secaucus, New Jersey 07094
Telephone number: (888) 411 - 1996
E-mail: [e-mail]
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This
device may not cause harmful interference, and (2) this device must accept any interference received, including
interference that may cause undesired operation.

Information on Disposal in other Countries outside the European

This symbol is only valid in the European Union.
If you wish to discard this product, please contact your local authorities or dealer and ask for the correct
method of disposal.

ENGLISH - 3

Contents

J Quick steps

Important Information

1. Set up your projector

See “Setting up” on page 14.

2. Connect with other devices

See “Connections” on page 18.

3. Prepare the Remote control

See “Remote control” on page 10.

Important Safety Notice............................................. 2

Precautions with regard to safety............................. 6

WARNINGS ......................................................................6

CAUTIONS........................................................................7

Cautions when transporting ..............................................8

Cautions when installing ...................................................8

Cautions on use ................................................................9

Accessories.......................................................................9

Preparation

About Your Projector............................................... 11

Remote control................................................................11

Projector body.................................................................12

Getting Started

Setting up.................................................................. 14

Screen size and throw distance ......................................14

Projection method ...........................................................16

Front leg adjusters and throwing angle...........................17

Connections.............................................................. 18

Before connection to the projector ..................................18

Connecting with computers.............................................18

Connecting with AV equipment .......................................19

4. Start projecting

See “Switching the projector on/off” on
page 20.

5. Adjust the image

See “Positioning the image” on
page 22.

Basic Operation

Switching the projector on/off ................................ 20

Power cord......................................................................20

POWER indicator............................................................20

Switching on the projector...............................................21

Switching off the projector...............................................21

Projecting an image ................................................. 22

Selecting the input signal ................................................22

Positioning the image......................................................22

Remote control operation........................................ 23

Operating range ..............................................................23

Setting up the image position automatically....................23

Switching the input signal................................................24

Capturing an image.........................................................25

Stopping the projection temporary ..................................25

Resetting to the factory default settings..........................25

Projecting an image in INDEX-WINDOW mode..............25

Enlarging the centered area............................................26

Controlling the volume of the speaker.............................26

ENGLISH - 4

Settings

Appendix

Menu Navigation .......................................................27

Navigating through the MENU ........................................27

Main menu and Sub-menu.............................................. 28

PICTURE menu..........................................................30

PICTURE MODE ............................................................30

CONTRAST ....................................................................30

BRIGHTNESS.................................................................30

COLOR ...........................................................................30

TINT................................................................................30

SHARPNESS.................................................................. 30

COLOR TEMPERATURE...............................................30

DAYLIGHT VIEW............................................................ 31

AI.....................................................................................31

DETAILED SETUP .........................................................31

POSITION menu ........................................................32

REALTIME KEYSTONE .................................................32

KEYSTONE .................................................................... 32

POSITION.......................................................................32

DOT CLOCK...................................................................32

CLOCK PHASE ..............................................................32

ASPECT..........................................................................32

RESIZING.......................................................................33

FRAME LOCK.................................................................33

LANGUAGE menu .....................................................33

OPTION menu............................................................34

INPUT GUIDE.................................................................34

STARTUP LOGO............................................................34

FUNCTION BUTTON...................................................... 34

COMPUTER2 SELECT .................................................. 34

LAMP POWER................................................................ 34

LAMP RUNTIME.............................................................35

POWER OFF TIMER...................................................... 35

DIRECT POWER ON......................................................35

CONTROL PANEL..........................................................35

AUTO SETUP................................................................. 35

SIGNAL SEARCH........................................................... 35

INSTALLATION ..............................................................35

HIGHLAND .....................................................................36

RGB/YP

VOLUME......................................................................... 36

DETAILED SETUP .........................................................36

BPR....................................................................36

SECURITY menu .......................................................37

INPUT PASSWORD ....................................................... 37

PASSWORD CHANGE................................................... 37

TEXT DISPLAY...............................................................37

TEXT CHANGE ..............................................................37

WIRELESS menu (PT-LB51NTU only) .....................38

Items in WIRELESS menu.............................................. 38

Technical Information .............................................. 44

List of compatible signals ............................................... 44

Serial terminal................................................................. 45

Computer connection guidance...................................... 47

Specifications ................................................................. 48

Dimensions..................................................................... 51

Trademark acknowledgments ........................................ 51

Index.......................................................................... 52

Avis important concernant la sécurité ................... 54

Précautions de sécurité........................................... 56

AVERTISSEMENT ......................................................... 56

MISES EN GARDE......................................................... 57

Précautions lors du transport.......................................... 58

Précautions lors de l'installation ..................................... 59

Précautions lors de l'utilisation ....................................... 59

Remplacement de l'unité de la lampe..................... 60

Important

Infomation

PreparationGetting StartedBasic OperationSettingsMaintenanceAppendix

Maintenance

TEMP and LAMP Indicators .....................................39

Managing the indicated problems................................... 39

Care and Replacement .............................................40

Cleaning the projector.....................................................40

Replacing the air filter .....................................................40

Replacing the Lamp unit .................................................41

Troubleshooting........................................................43

ENGLISH - 5

Information

Precautions with regard to safety

Important

WARNINGS

If you notice smoke, strange smells or noise coming
from the projector, disconnect the power cord plug
from the wall outlet.

Do not continue to use the projector in such cases,

otherwise fire or electric shocks could result.

Check that no more smoke is coming out, and then

contact an Authorised Service Center for repairs.

Do not attempt to repair the projector yourself, as this

can be dangerous.

Do not install this projector in a place which is not
strong enough to take the full weight of the
projector.

If the installation location is not strong enough, it may

fall down or tip over, and severe injury or damage
could result.

Installation work (such as ceiling suspension)
should only be carried out by a qualified technician.

If installation is not carried out correctly, there is the

danger that injury or electric shocks may occur.

Do not use other than an authorised ceiling mount

bracket.

If foreign objects or water get inside the projector, or if
the projector is dropped or the cabinet is broken,
disconnect the power cord plug from the wall outlet.

Continued use of the projector in this condition may

result in fire or electric shocks.

Contact an Authorised Service Center for repairs.

Do not overload the wall outlet.

If the power supply is overloaded (for example, by

using too many adapters), overheating may occur
and fire may result.

Never attempt to modify or disassemble the
projector.

High voltages can cause fire or electric shocks.
For any inspection, adjustment and repair work,

please contact an Authorised Service Center.

Clean the power cord plug regularly to prevent it
from becoming covered in dust.

If dust builds up on the power cord plug, the resulting

humidity can damage the insulation, which could
result in fire. Pull the power cord plug out from the
wall outlet and wipe it with a dry cloth.

If not using the projector for an extended period of

time, pull the power cord plug out from the wall outlet.

Do not handle the power cord plug with wet hands.

Failure to observe this may result in electric shocks.

Insert the power cord plug securely into the wall
outlet.

If the plug is not inserted correctly, electric shocks or

overheating could result.

Do not use plugs which are damaged or wall outlet

which are coming loose from the wall.

Do not place the projector on top of surfaces which
are unstable.

If the projector is placed on top of a surface which is

sloped or unstable, it may fall down or tip over, and
injury or damage could result.

Do not place the projector into water or let it become
wet.

Failure to observe this may result in fire or electric

shocks.

Do not do anything that might damage the power
cord or the power cord plug.

Do not damage the power cord, make any

modifications to it, place it near any hot objects, bend
it excessively, twist it, pull it, place heavy objects on
top of it or wrap it into a bundle.

If the power cord is used while damaged, electric

shocks, short-circuits or fire may result.

Ask an Authorised Service Center to carry out any

repairs to the power cord that might be necessary.

Do not place the projector on soft materials such as
carpets or sponge mats.

Doing so may cause the projector to overheat, which

can cause burns, fire or damage to the projector.

Do not place liquid containers on top of the projector.

If water spills onto the projector or gets inside it, fire

or electric shocks could result.

If any water gets inside the projector, contact an

Authorised Service Center.

Do not insert any foreign objects into the projector.

Do not insert any metal objects or flammable objects

into the projector or drop them onto the projector, as
doing so can result in fire or electric shocks.

Do not allow the + and - terminals of the batteries to
come into contact with metallic objects such as
necklaces or hairpins.

Failure to observe this may cause the batteries to

leak, overheat, explode or catch fire.
Store the batteries in a plastic bag and keep them
away from metallic objects.

Do not touch the leaked liquid from the batteries.

If you touch the leaked liquid, it may hurt your skin.

Immediately wash away the liquid with water and
seek medical advice.

If you get the leaked liquid in your eye, it may cause

blindness or damage. Never rub your eye, and
immediately wash away the liquid with water and
seek medical advice.

During a thunderstorm, do not touch the projector or
the cable.

Electric shocks can result.

Do not use the projector in a bath or shower.

Fire or electric shocks can result.

ENGLISH - 6

Precautions with regard to safety

Do not place your skin into the light beam while the
projector is being used.

Strong light is emitted from the projector’s lens. If you

place directly into this light, it can hurt or damage
your skin.

Do not look into the lens while the projector is being
used.

Strong light is emitted from the projector’s lens. If you

look directly into this light, it can hurt and damage
your eyes.

Be especially careful not to let young children look

into the lens. In addition, turn off the power and
disconnect the power cord plug when you are away
from the projector.

Do not place your hands or other objects close to the
air outlet port.

Heated air comes out of the air outlet port. Do not

place your hands or face, or objects which cannot
withstand heat close to this port [allow at least
15 cm (6") of space], otherwise burns or damage
could result.

Replacement of the lamp is recommended to be
carried out by a qualified technician.

The lamp has high internal pressure. If improperly

handled, explosion might result.

The lamp can easily become damaged if struck

against hard objects or dropped, and injury or
malfunctions may result.

When replacing the lamp, allow it to cool for at least
one hour before handling it.

The lamp cover gets very hot, and touching it can

cause burns.

Before replacing the lamp, be sure to disconnect the
power cord plug from the wall outlet.

Electric shocks or explosions can result if this is not

done.

Do not allow infants or pets to touch the remote
control unit.

Keep the remote control unit out of the reach of

infants and pets after using it.

Do not set up the projector outdoor.

The projector is designed for indoor use only.

Important

Information

CAUTIONS

Do not cover the air inlet port or the air outlet port.

Doing so may cause the projector to overheat, which

can cause fire or damage to the projector.

Do not place the projector in narrow, badly ventilated

places such as closets or bookshelves.

Do not place the projector on cloth or papers, as

these materials could be drawn into the air inlet port.

Do not set up the projector in humid or dusty places
or in places where the projector may come into
contact with oily smoke or steam.

Using the projector under such conditions may result

in fire, electric shocks or plastic deterioration. The
plastic deterioration may cause the falling down of
the projector which is mounted in the ceiling.

Do not set up the projector in a high temperature
environment, such as near a heater or in direct
sunlight.

Failure to observe this may result in fire, malfunction

or plastic deterioration.

When disconnecting the power cord, hold the plug,
not the cord.

If the power cord itself is pulled, the cord will become

damaged, and fire, short-circuits or serious electric
shocks may result.

Dispose of unneeded power cords, cap and
packaging materials appropriately after removing
the product.

Always disconnect all cables before moving the
projector.

Moving the projector with cables still attached can

damage the cables, which could cause fire or electric
shocks to occur.

Do not place any heavy objects on top of the
projector.

Failure to observe this may cause the projector to

become unbalanced and fall, which could result in
damage or injury.

Do not short-circuit, heat or disassemble the
batteries or place them into water or fire.

Failure to observe this may cause the batteries to

overheat, leak, explode or catch fire, and burns or
other injury may result.

When inserting the batteries, make sure the
polarities (+ and -) are correct.

If the batteries are inserted incorrectly, they may

explode or leak, and fire, injury or contamination of
the battery compartment and surrounding area may
result.

Use only the specified batteries.

If incorrect or different kind of batteries are used, they

may explode or leak, and fire, injury or contamination
of the battery compartment and surrounding area
may result.

ENGLISH - 7

Information

Precautions with regard to safety

Important

Do not mix old and new batteries.

If the batteries are inserted incorrectly, they may

explode or leak, and fire, injury or contamination of
the battery compartment and surrounding area may
result.

Remove the used batteries from the remote control
promptly.

If you leave used batteries in the remote control for

an extended period of time, it may cause liquid
leaking, abnormal internal temperature rising or
explosion.

If not using the projector for an extended period of
time, disconnect the power cord plug from the wall
outlet and remove the batteries from the remote
control.

If dust builds up on the power cord plug, the resulting

humidity may damage the insulation, which could
result in fire.

Keeping or leaving the remote control with batteries

inside may cause insulation deterioration, electrical
leakage or explosion which could result in fire.

Do not put your weight on this projector.

You could fall or the projector could break, and injury

may result.

Be especially careful not to let young children stand

or sit on the projector.

Disconnect the power cord plug from the wall outlet
as a safety precaution before carrying out any
cleaning.

Electric shocks can result if this is not done.

If the lamp has broken, ventilate the room
immediately. Do not touch or bring your face close
to the broken pieces.

Failure to observe this may cause the user to absorb

the gas which was released when the lamp broke and
which contains nearly the same amount of mercury
as fluorescent lamps, and the broken pieces may
cause injury.

If you believe that you have absorbed the gas or that

the gas has got into your eyes or mouth, seek
medical advice immediately.

Ask your dealer about the replacement of the lamp

unit and check the inside of the projector.

Ask an Authorised Service Center to clean inside the
projector at least once a year.

If dust is left to build up inside the projector without

being cleaned out, it can result in fire or problems
with operation.

It is a good idea to clean the inside of the projector

before the season for humid weather arrives. Ask
your nearest Authorised Service Center to clean the
projector when required. Please discuss with the
Authorised Service Center regarding cleaning costs.

We are constantly making efforts to preserve and maintain a clean environment. Please take non repairable
units back to your dealer or a recycling company.

Cautions when transporting

Do not subject the projector to excessive vibration
or shocks.

The projector lens need to be handled with care.

Be sure to use the accessory carrying bag when
moving the projector.

When placing the projector inside the carrying bag,

position it so that the lens is facing upward. Do not
place the projector with its adjustable legs extended
and do not put anything else in the bag other than the
projector, cables and the remote control unit.

Cautions when installing

Avoid setting up in places which are subject to
vibration or shocks.

The internal parts can be damaged, which may cause

malfunctions or accidents.

Avoid setting up in places which are subject to
sudden temperature changes, such as near an air
conditioner or lighting equipment.

The life of the lamp may be shortened or the projector

may be turned off. See “TEMP indicator” on page 40.

Do not set up the projector near high-voltage power
lines or near motors.

The projector may be subject to electromagnetic

interference.

If installing the projector to the ceiling, ask a
qualified technician to carry out all installation work.

You will need to purchase the separate installation kit

(Model No. ET-PKB50). Furthermore, all installation
work is should only be carried out by a qualified
technician.

If using this projector at high elevations
(above 1 400 m), set the HIGHLAND to ON. See
“HIGHLAND” on page 36.

Failure to observe this may result in malfunctions or

the life of the lamp or the other components may be
shortened.

ENGLISH - 8

Cautions on use

Precautions with regard to safety

In order to get the best picture quality

Draw curtains or blinds over any windows and turn off

any lights near the screen to prevent outside light or
light from indoor lamps from shining onto the screen.

Do not touch the surfaces of the lens with your bare
hands.

If the surface of the lens becomes dirty from

fingerprints or anything else, this will be magnified
and projected onto the screen.

Liquid crystal panel

Do not project the same image for long periods of

time, as this may remain as an afterimage on the
liquid crystal panel.

The liquid crystal panel of the projector is built with

very high precision technology to provide fine picture
details. Occasionally, a few stuck pixels may appear
on the screen as fixed points of blue, green or red. It
is recommended to switch off the projector once and
try after 1hour later again. Please note that this does
not affect the performance of your LCD.

Screen

Do not apply any volatile substances which may

cause discoloration to the screen, and do not let it
become dirty or damaged.

The projector has a high pressure mercury lamp and
that is characterized as follows.

The brightness of the lamp depends on the duration

of use.

The lamp may explode or shorten the lamp life by

shocks or chipping damage.

The lamp may explode only occasionally after using

the projector.

The lamp may explode if using the projector after the

instructed lamp replacement timing.

The lamp life is depends on individual lamp

characteristics, usage condition and the installation
environment. Especially the consecutive use of the
projector for more than 10 hours, or the frequent
switching on or off may greatly affect on the lamp life.

Optical components

If you use the projector consecutively 6 hours every

day, the optical components may need to be replaced
in less than 1 year.

Important

Information

Accessories

Make sure the following accessories are provided with your projector.

Remote control*
PT-LB51NTU :
N2QAYB000169 (X1)
PT-LB51U /PT-LB51SU :
N2QAYB000172 (X1)

AUTO

SETUP

INPUT

SELECT

COMPUTER WIRELESS VIDEO

WIRELESS

PRESENTATION

MENU

FREEZE SHUTTER

DEFAULT

MULTI-LIVE

DIGITAL ZOOM VOLUME

COMPUTER

SEARCH

INDEX-

PAG E

RETURN

ENTER

WINDOW

Power cord (x1)
K2CG3DR00006

Carrying bag (x1)
(TPEP018)

AA batteries for
Remote control (x2)

CD-ROM* (x1)

TQBH9009

RGB signal cable (x1)
[1.8 m (5’ 10”),
K1HA15DA0002 x1]

*The illustration above is the remote
control unit for the PT-LB51NTU.

*PT-LB51NTU only

ENGLISH - 9

About Your Projector

Remote control

POWER button

Switch between stand-by
mode and projection mode.
(page 20)

Preparation

Display the MAIN MENU.
(page 27)

Navigate through the
menus with FGIH, and
activate the menu item with
ENTER. (page 27)

Capture the projected image
as a frozen picture. (page 24)

Reset some of the settings to
the factory default settings.
(page 25)

MULTI-LIVE button is
only for PT-LB51NTU.
See CD-ROM

contents.

Control to change the
scale by means of digital
zoom. (page 26)

AUTO

SETUP

INPUT

SELECT

WIRELESS

PRESENTATION

MENU

COMPUTER

DEFAULT

MULTI-LIVE

SEARCH

VOLU MEDIGITAL ZOOM

VIDEOWIRELESSCOMPUTER

PAG E

RETURN

SHUTTERFREEZE

INDEX-

ENTER

WINDOW

Control to adjust the
volume of the speakers.
(page 26)

Automatically adjust the
setting of DOT CLOCK,
CLOCK PHASE for the
projected image of

COMPUTER signal. (page 23)

INPUT SELECT buttons

Switch the required input

signal button to select.
WIRELESS button is only
for PT-LB51NTU.

see CD-ROM contents.

PAGE buttons is only for

PT-LB51NTU.
See CD-ROM contents.

Return to the previous menu.
(page 27)

Turn off the projection
temporarily.(page 24)

Display the frozen image
while the display of
subsequent images

continues. (page 25)

COMPUTER SEARCH
button is only for
PT-LB51NTU.

See CD-ROM contents.

Battery compartment

1. Press the tab and lift up the cover.

2. Insert the batteries according to the polarity diagram indicated inside.

Top view

Remote control signal emitter. (page 23)

ENGLISH - 10

About Your Projector

Attaching a hand strap

You can attach a favorite strap on to the Remote control.

NOTE:

• Do not drop the Remote control.

• Avoid contact with liquids or moisture.

• Use manganese batteries or alkaline batteries with the Remote control.

• Do not attempt to modify or disassemble the Remote control. Contact an Authorised Service Center for repairs.

• Do not keep pressing the Remote control buttons as this may shorten battery life.

• See “Remote control operation” on page 23.

Preparation

ENGLISH - 11

About Your Projector

Projector body

J Top and front view

LAMP indicator (page 39)

Preparation

Luminance Sensor

(page 31)
This sensor detects the luminance
when the “DAYLIGHT VIEW”
function is operating. Do not cover
the projector and do not place any
object on the projector when
using it.

Control panel

Font leg adjuster

(L) button (page 17)
These buttons are
used to unlock the
front adjustable legs.
Press to adjust
the angle of tilt of the
projector.

COMPUTER INPUT indicator
This indicator illuminates when a
signal is being input to the
connector (COMPUTER1 IN or
COMPUTER 2 IN) selected using
the INPUT SELECT buttons.

TEMP indicator (page 39)

Zoom ring (page 22)

Focus ring (page 22)

Remote control signal
receptor (page 23)

Projection lens

J Control panel

INPUT SELECT button (page 22)

Switch to cycle through the input
method.

POWER button (page 20)
POWER indicator (page 20)

Switch between stand-by mode
and projection mode.

Navigation buttons (page 27)
Navigate through the menus with
FGIH, and activate the menu
item with ENTER.

Font leg adjuster (R) button
(page 17)

Security lock

This can be used to connect a commercially-available
theft-prevention cable (manufactured by Kensington).
This security lock is compatible with the Microsaver
Security System from Kensington.

FUNCTION button (page 34)

MENU button (page 27)
Display the MAIN MENU.

NOTE:

• Do not cover the ventilation openings or place anything within 15 cm (6") of them as this may cause damage or injury.

ENGLISH - 12

J Back and bottom view

J

About Your Projector

Connector Panel

Lamp unit compartment

(page 41)

Air intake port, Air filter

(page 40)

Font adjustable legs (L/R)
Adjust the projection angle.
(page 17)

Connector Panel

COMPUTER2 IN/1 OUT

Connect an RGB signal cable from
a computer.

and output by menu operation.

Selectable for input

Air exhaust port

Speaker

Air exhaust port

Preparation

S-VIDEO IN

Connect a S-VIDEO signal
cable.

VIDEO IN

Connect an RCA composite
video cable.

AUDIO IN

COMPUTER1 IN

Connect an RGB signal
cable from a computer.

SERIAL

See “Serial terminal”
on page 45.

AC IN

Connect the Power cord
to supply electronic power
to the projector. (page 20)

Connect audio cables for
inputting audio signal
corresponding to VIDEO IN,

S-VIDEO IN and
COMPONENT IN.

COMPUTER AUDIO IN

Connect audio cables for
inputting audio signals
corresponding to

COMPUTER1 IN and
COMPUTER2 IN/1 OUT.

VARIABLE AUDIO OUT

Connect an audio cables
for outputting audio
signals to the connected
equipment.

NOTE:

• Do not cover the ventilation openings or place anything within 15 cm (6") of them as this may cause damage or injury.

• When a cable is connected to the VARIABLE AUDIO OUT, the built-in speaker will be disabled.

ENGLISH - 13

Setting up

Screen size and throw distance

You can adjust the projection size with 1.2x zoom lens. Calculate and define the throw distance as follows.

Projected image

Getting Started

PT-LB51NTU/PT-LB51U

Screen

diagonal (SD)

33" (0.84 m) 0.50 m (1'7") 0.67 m (2'2") 1.1 m (3'7") 0.07 m (2-3/4”)
40" (1.02 m) 0.61 m (2') 0.81 m (2'7") 1.2 m (3'11") 1.4 m (4'7") 0.08 m (3-1/8”)
50" (1.27 m) 0.76 m (2'5") 1.02 m (3'4") 1.6 m (5'2") 1.8 m (5'10") 0.11 m (4-5/16”)
60" (1.52 m) 0.91 m (2'11") 1.22 m (4') 1.9 m (6'2") 2.1 m (6'10") 0.13 m (5-3/32”)
70" (1.78 m) 1.07 m (3'06") 1.42 m (4'7") 2.2 m (7'2") 2.5 m (8'2") 0.15 m (5-7/8”)
80" (2.03 m) 1.22 m (4') 1.63 m (5'4") 2.5 m (8'2") 2.9 m (9'6") 0.17 m (6-11/16”)
90" (2.29 m) 1.37 m (4'5") 1.83 m (6') 2.8 m (9'2") 3.3 m (10'9") 0.19 m (7-15/32”)
100" (2.54 m) 1.52 m (4'11") 2.03 m (6'7") 3.1 m (10'2") 3.6 m (11'9") 0.21 m (8-1/4”)
120" (3.05 m) 1.83 m (6') 2.44 m (8') 3.7 m (12'1") 4.4 m (14'5") 0.25 m (9-13/16”)
150" (3.81 m) 2.29 m (7'6") 3.05 m (10') 4.6 m (15'1") 5.5 m (18) 0.32 m (12-19/32”)
200" (5.08 m) 3.05 m (10') 4.06 m (13'3") 6.2 m (20'4") 7.3 m (23'11") 0.42 m (16-17/32”)
250" (6.35 m) 3.81 m (12'6") 5.08 m (16'8") 7.7 m (25'3") 9.2 m (30'2") 0.53 m (20-27/32”)
300" (7.62 m) 4.57 m (14'11") 6.10 m (20') 9.2 m (30'2") 11.1 m (36'5") 0.64 m (25-3/16”)

SH

Projection size (4 : 3) Throw distance (L)

Screen height

(SH)

SD

SW

Screen

Screen width

(SW)

HSWS

1
H

L (LW/LT)

L (LW/LT)

Minimum

distance (LW)

Maximum

distance (LT)

mm 2.18

Height

position

(H1)

PT-LB51SU

Projection size (4 : 3) Throw distance (L)

Screen

diagonal (SD)

33" (0.84 m) 0.50 m (1'7") 0.67 m (2'2") 1.1 m (3'7") 0.07 m (2-3/4”)
40" (1.02 m) 0.61 m (2') 0.81 m (2'7") 1.2 m (3'11") 1.4 m (4'7") 0.09 m (3-17/32”)
50" (1.27 m) 0.76 m (2'5") 1.02 m (3'4") 1.5 m (4'11") 1.8 m (5'10") 0.11 m (4-5/16”)
60" (1.52 m) 0.91 m (2'11") 1.22 m (4') 1.8 m (5'10") 2.1 m (6'10") 0.13 m (5-3/32”)
70" (1.78 m) 1.07 m (3'06") 1.42 m (4'7") 2.1 m (6'10") 2.5 m (8'2") 0.15 m (5-7/8”)
80" (2.03 m) 1.22 m (4') 1.63 m (5'4") 2.5 m (8'2") 2.9 m (9'6") 0.17 m (6-11/16”)
90" (2.29 m) 1.37 m (4'5") 1.83 m (6') 2.8 m (9'2") 3.2 m (10'5) 0.20 m (7-27/32”)
100" (2.54 m) 1.52 m (4'11") 2.03 m (6'7") 3.1 m (10'2") 3.6 m (11'9") 0.22 m (8-21/32”)
120" (3.05 m) 1.83 m (6') 2.44 m (8') 3.7 m (12'1") 4.3 m (14'1") 0.26 m (10-7/32”)
150" (3.81 m) 2.29 m (7'6") 3.05 m (10') 4.6 m (15'1") 5.4 m (17'8") 0.33 m (12-31/32”)
200" (5.08 m) 3.05 m (10') 4.06 m (13'3") 6.1 m (20) 7.3 m (23'11") 0.43 m (16-29/32”)
250" (6.35 m) 3.81 m (12'6") 5.08 m (16'8") 7.6 m (24'11") 9.1 m (29'10") 0.54 m (21-1/4”)
300" (7.62 m) 4.57 m (14'11") 6.10 m (20') 9.1 m (29'10") 10.9 m (35'9") 0.65 m (25-9/16”)

* All measurements above are approximate and may differ slightly from the actual measurements.

Screen height

(SH)

Screen width

(SW)

Minimum

distance (LW)

Maximum

distance (LT)

position

ENGLISH - 14

Height

(H1)

Setting up

J Calculation methods for screen dimensions

You can calculate more detailed screen dimension from the screen diagonal. (Unit: m)

PT-LB51NTU/PT-LB51U

Projection size(4:3) Projection size(16:9)
SH = SD X 0.0152 SH = SD X 0.0125
SW = SD X 0.0203 SW = SD X 0.0221
LW = 0.0307 X SD - 0.031 LW = 0.0335 X SD - 0.0315
LT = 0.0371 X SD - 0.029 LT = 0.0405 X SD - 0.0365

PT-LB51SU

Projection size(4:3) Projection size(16:9)
SH = SD X 0.0152 SH = SD X 0.0125
SW = SD X 0.0203 SW = SD X 0.0221
LW = 0.0304 X SD - 0.029 LW = 0.0332 X SD - 0.032
LT = 0.0368 X SD - 0.041 LT = 0.0401 X SD - 0.038

* The results above are approximate and may differ slightly from the actual measurements.

NOTE:

• Do not use the projector at a raised or a horizontally tilted position as it may cause
malfunction of the projector.

• Make sure the projector lens surface is parallel with the screen. You can tilt the projector
body approximately ± 30° vertically. Overtilting may result in shortening the component’s
life.

• For the best quality of the projection image, install a screen where sun light or room light
does not shine directly onto the screen. Close window shades or curtains to block the lights.

Getting Started

ENGLISH - 15

Setting up

Projection method

You can use the projector with any of the following 4 projection methods. To set the desired method in the projector,
See “INSTALLATION” on page 35..

J Setting on a desk/floor and

projecting from front

Getting Started

INSTALLATION: FRONT/DESK INSTALLATION: REAR/DESK

J Setting on a desk/floor and

projecting from rear

J Mounting in the ceiling and

projecting from front

INSTALLATION: FRONT/CEILING INSTALLATION: REAR/CEILING

NOTE:

• A translucent screen is required for rear projection.

• When mounting the projector in the ceiling, the optional ceiling mount bracket (ET-PKB50) is required.

J Mounting in the ceiling and

projecting from rear

ENGLISH - 16

Setting up

Front adjustable legs and throwing angle

You can adjust the projection angle in the vertical direction by pressing the Font leg adjuster buttons.
See “Positioning the image” on page 22.

NOTE:

• Heated air comes out of the Air exhaust port. Be careful of this when adjusting the Font adjustable legs.

• If keystone distortion occurs, see “KEYSTONE” on page 32.

Getting Started

ENGLISH - 17

Connections

Before connection to the projector

Read and follow the operating and connecting instructions of each peripheral device.
The peripheral devices must be turned off.
Use cables that match each peripheral device to be connected.
If the input signal is affected by signal jitter, the projected image may have poor image quality and timebase

correction is effective.

Confirm the type of video signals. See “List of compatible signals” on page 44.
Only one audio system circuit is available for each of the COMPUTER AUDIO IN and AUDIO IN L-R

connectors, so if you change the audio input source, you will need to remove and insert the appropriate
plugs.

If the signal cables are disconnected or if the power supply for the computer or video deck is turned off while

“DIGITAL ZOOM” or “INDEX-WINDOW” is being used, these functions will be canceled.
See “Enlarging the centered area” on page 26.

Getting Started

See “Projecting an image in INDEX-WINDOW mode” on page 25.

Connecting with computers

Computer for
controlling

Computers

DIN 8-pin
(male)

Serial adapter
(ET-ADSER :
sold separately)

Monitor

Computers

RGB signal cable
(Commercial)

RGB signal cable
(Commercial)

Audio system

NOTE:

• When COMPUTER2 SELECT in the OPTION menu is set to OUTPUT, do not connect any input signals.

• Refer to the accessory CD-ROM for details on the wireless network that can be used for controlling the projector with a

personal computer. (PT-LB51NTU only)

ENGLISH - 18

Connecting with AV equipment

J Connecting with VIDEO IN/S-VIDEO IN

DVD player

To S-VIDEO output

Connections

Audio system

To video output or
audio output

Video player

J Connecting with COMPONENT IN

D-sub15-pin (male) - BNCx5 (male) adapter cable
Red (connect to P
Blue (connect to PB signal connector)
Green (connect to Y signal connector)

R signal connector)

Getting Started

DVD player
(with component video
connectors)

BNC/RCA adapter

To audio output

NOTE:

• If you connect the BNC cables, use with a commercial BNC-RCA adaptor.

Audio system

ENGLISH - 19