Panasonic LCD Projector PT-LB90NTU PT-LB90U PT-LB78VU PT-LB75VU Operating Instructions

							Operating Instructions
LCD Projector  Commercial Use
Thank you for purchasing a Panasonic Projector.Before operating this product, please read the instructions carefully, and save this manual 
 
J
for future use. 
Before using your projector, be sure to read “Precautions with regard to safety”
 
(pages 6 - 10).
TQBJ0302
ENGLISH
Model No.
PT-LB90NTU
PT-LB90U
PT-LB78VU
PT-LB75VU 
						

							Important Safety Notice
Important 
Information
2 - ENGLISH
Dear Panasonic Customer:
The following information should be read and understood as it provides d\
etails, which will enable you to operate 
the projector in a manner which is both safe to you and your environment\
, and conforms to legal requirements re -
garding the use of projectors. Before connecting, operating or adjusting\
 this projector, please read these instruc -
tions completely and save this booklet with the projector for future ref\
erence. We hope it will help you to get the 
most out of your new product, and that you will be pleased with your Pan\
asonic 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.
Model number: PT-LB90NTU/PT-LB90U/PT-LB78VU/PT-LB75VU
Serial number:
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DONOT EXPOSE THIS PRODUCT 
TO RAIN OR MOISTURE.
Power Supply: This LCD Projector is designed to operate on 100 V - 240 V, 50 Hz/60 Hz AC, house current 
only.
CAUTION: The AC power cord which is supplied with the projector as an accessory can o\
nly be used for 
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 aler\
t the user to the presence of 
important operating and maintenance (servicing) instructions in the li\
terature 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 electricia\
n. 
Do not defeat the purpose of the grounding plug.
Do not remove
Pursuant to at the directive 2004/108/EC, article 9(2)
Pursuant to at the directive 2005/32/EC amended by 2008/28/EC, article 1\
4
Panasonic Testing Center
Panasonic Service Europe, a division of Panasonic Marketing Europe GmbH
Winsbergring 15, 22525 Hamburg, F.R. Germany
NOTICE:
This product has a High Intensity Discharge (HID) lamp that contains m\
ercury. Dispose may be regulated in 
 
•
your community due to environmental considerations. For disposal or recy\
cling information, please contact 
your local authorities, or the Electronic Industries Alliance: http://www.eiae.org
Important Safety Notice 
						

							Important Safety Notice
Important 
Information
ENGLISH - 3
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 harmf\
ul interference in a 
residential installation. This equipment generates, uses and can radiate radio frequency energy an\
d, if not installed 
and used in accordance with the instructions, may cause harmful interfer\
ence to radio communications. However, 
there is no guarantee that interference will not occur in a particular i\
nstallation. If this equipment does cause harm-
ful interference to radio or television reception, which can be determin\
ed 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, follow the attached installation instruct\
ions and use only 
shielded interface cables when connecting to computer and/or peripheral \
devices. Any 
changes or modifications not expressly approved by Panasonic Corp. of North  America could 
void the user’s authority to operate this device.
FCC RF Exposure Warning:    (if provided with wireless device)
This equipment complied with FCC radiation exposure limits set forth for\
 an uncontrolled environment.
 
•
This equipment has been approved for mobile operation and requires minim\
um 20 cm spacing be provided 
 
•
between antenna(s) and all person’s body (excluding extremities of hands, wrist and feet) during wireles\
s 
modes of operation.
This equipment may not be used with other installed transmitters, which \
may be capable of simultaneous 
 
•
transmission.
WARNING: Not for use in a computer room as defined in the Standard for the Protection of Electronic Computer/Data 
 
•
Processing Equipment, ANSI/NFPA 75.
For permanently connected equipment, a readily accessible disconnect dev\
ice shall be incorporated in the 
 
•
building installation wiring.
For pluggable equipment, the socket-outlet shall be installed near the e\
quipment and shall be easily accessible 
• .
Declaration of Conformity
Model Number:  PT-LB90NTU/PT-LB90U/PT-LB78VU/PT-LB75VU
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:  [email protected]
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 mu\
st accept any interference received, 
including interference that may cause undesired operation.
Information on Disposal in other Countries outside the European
These symbols are only valid in the European Union.
If you wish to discard this product, please contact your local authoriti\
es or dealer and ask for the 
correct method of disposal.
Environment care information for users in China
This symbol is only valid in China. 
						

							4 - ENGLISH
ContentsUser logo display function
You can project your unique image such as 
your company’s logo when projection starts.
(
Æpage 37) 
FUNCTION button
You can assign almost all the items on the 
on-screen menu to the FUNCTION button of 
the remote control and control panel.
You can display the frequently used functions 
by pressing the  FUNCTION button.
(
Æpage 26, 41) 
Standby power reduction
The standby power is highly reduced from 
the previous model. Approx. 4.0 W (PT-LB80NTU)  
 
Approx. 0.9 W (PT-LB90NTU)  
(Standby mode: In “ECO”)   
Quick steps 
J
For details, see the corresponding pages.
1. 
Set up your projector. 
(
Æpage 15)
2. Connect with other devices. 
(
Æpage 17)
3.  Connect the power cord. 
(
Æpage 19)
4. Switch on the projector. 
(
Æpage 21)
5. Select the input signal.  
(
Æpage 23)
6.  Adjust the image. 
(
Æpage 23)
Important Informatio n
Important Safety Notice  ............................2
Precautions with regard to safety  ............6
WARNING  .............................................................. 6
CAUTION  ............................................................... 7
Cautions when transporting  ................................... 8
Cautions when installing  ........................................ 8
Cautions on use  ..................................................... 9
Security  .................................................................. 9
Cleaning and maintenance  .................................... 9
Disposal  ................................................................. 9
Accessories  .......................................................... 10
Preparation
Read this first............................................ 11
About Your Projector  ..............................12
Projector body ...................................................... 12
Remote control  ..................................................... 14
Getting Started
Setting up ................................................. 15
Screen size and throw distance  ........................... 15
Projection method  ................................................ 16
Front leg adjusters and throwing angle  ................ 16
Connections  ............................................. 17
Before connecting to the projector  ....................... 17
Connecting example: AV equipment  .................... 17
Connecting example: Computers......................... 18
Basic Operation
Switching the projector on/off ................ 19
Power cord  ........................................................... 19
POWER and POWER LOCK indicators  ...............20
Switching on the projector.................................... 21
Switching off the projector  ....................................22
Projecting an image ................................ 23
Selecting the input signal  ..................................... 23
Positioning the image........................................... 23
Remote control operation ....................... 24
Capturing an image.............................................. 24
Stopping the projection temporarily  ..................... 24
Switching the input signal  .................................... 24
Setting up the image position automatically .........25
Resetting to the factory default settings  ............... 25
Controlling the volume of the speaker  ................. 25
Projecting an image in INDEX-WINDOW mode  .. 25
Enlarging the image  ............................................. 26
Using an assigned function  .................................. 26    
						

							Important 
Information
Preparation
Getting Started
Basic Operation
Settings
Maintenance
Appendix
ENGLISH - 5
Settings
Menu Navigation  ...................................... 27
Navigating through the MENU  ............................. 27
ON-SCREEN MENU  ............................................ 28
Main menu  ........................................................... 28
Sub-menu  ............................................................ 28
PICTURE menu ........................................ 30
PICTURE MODE ................................................. 30
CONTRAST  ......................................................... 30
BRIGHTNESS  ...................................................... 30
COLOR  ................................................................ 30
TINT  ..................................................................... 30
SHARPNESS  ....................................................... 30
WHITE BALANCE  ................................................ 30
COLOR TEMPERATURE  ....................................30
DAYLIGHT VIEW  ................................................. 31
STILL MODE  ........................................................ 31
NOISE REDUCTION  ........................................... 31
TV-SYSTEM  ......................................................... 31
RGB/YP
BPR   .......................................................... 31
POSITION menu ....................................... 32
REALTIME KEYSTONE ....................................... 32
KEYSTONE  ......................................................... 32
SHIFT  ................................................................... 32
SHIFT V  ............................................................... 32
DOT CLOCK  ........................................................ 32
CLOCK PHASE  ................................................... 32
OVER SCAN  ........................................................ 33
ASPECT  ............................................................... 33
FRAME LOCK  ...................................................... 34
LANGUAGE menu ................................... 35
DISPLAY OPTION menu  .......................... 36
ON-SCREEN DISPLAY  ....................................... 36
CLOSED CAPTION SETTING  ............................. 36
STARTUP LOGO  ................................................. 37
AUTO SETUP  ...................................................... 37
SIGNAL SEARCH  ................................................ 37
BACK COLOR  ..................................................... 37
WIDE MODE  ........................................................ 38
SXGA MODE  ....................................................... 38
OTHER FUNCTIONS  .......................................... 38
PROJECTOR SETUP menu  .....................39
STATUS ............................................................... 39
NO SIGNAL SHUT-OFF  ...................................... 39
INITIAL START UP  ............................................... 39
INSTALLATION  .................................................... 39
HIGH ALTITUDE MODE  ......................................39
STANDBY MODE  ................................................ 40
LAMP POWER  ..................................................... 40
LAMP RUNTIME  .................................................. 40
EMULATE  ............................................................ 40
FUNCTION BUTTON ........................................... 41
AUDIO SETTING  ................................................. 41
TEST PATTERN  ................................................... 42
INITIALIZE ALL  .................................................... 42
SECURITY menu ...................................... 43
PASSWORD ........................................................ 43
PASSWORD CHANGE  ........................................ 43
TEXT DISPLAY  .................................................... 43
TEXT CHANGE  ................................................... 43
MENU LOCK  ........................................................ 44
MENU LOCK PASSWORD  ..................................44
CONTROL DEVICE SETUP  ................................ 44
NETWORK menu (PT-LB90NTU only)   ......... 45
Maintenance
LAMP and TEMP Indicators  ....................46
Managing the indicated problems  ........................ 46
Care and Replacement  ............................ 47
Before Care and Replacement  ............................ 47
Cleaning the projector  .......................................... 47
Replacing the Lamp unit  ...................................... 48
Troubleshooting ...................................... 51
Appendix
Technical Information  ............................. 52
List of compatible signals  ..................................... 52
Serial terminal  ...................................................... 53
LAN terminal  ........................................................ 54
MENU LOCK PASSWORD  ..................................54
Specifications .......................................... 55
Ceiling mount bracket safeguards .........57
Dimensions  .............................................. 58
Trademark acknowledgements  .............. 58
Index  ......................................................... 59
Informations importantes
Avis important concernant la sécurité  ..60
Précautions de sécurité  ..........................62
AVERTISSEMENT  ............................................... 62
MISE EN GARDE  ................................................ 63
Précautions lors du transport  ............................... 64
Précautions lors de l’installation........................... 64
Précautions lors de l’utilisation............................. 65
Sécurité  ................................................................ 65
Nettoyage et entretien .......................................... 65
Mise au rebut  ....................................................... 65
Remplacement de l'unité de la lampe  .... 66
ContentsBe sure to read “Precautions with regard to safety”.  (Æpages 6 - 10) 
						

							Precautions with regard to safety
Important 
Information
6 - ENGLISH
WARNING
POWER
 
„
The wall outlet or the circuit breaker shall 
be installed near the equipment and shall 
be easily accessible when problems oc-
cur. If the followings problems occur, cut 
off the power supply immediately.
Continued use of the projector in these conditions will 
result in fire or electric shock.
If foreign objects or water get inside the projector, 
 
z
cut off the power supply.
If the projector is dropped or the cabinet is broken, 
 
z
cut off the power supply.
If you notice smoke, strange smells or noise com -
 
z
ing from the projector, cut off the power supply.
Please contact an Authorized Service Center for 
repairs, and do not attempt to repair the projector 
yourself.
During a thunderstorm, do not touch the 
projector or the cable.
Electric shocks can result.
Do not do anything that might damage 
the power cord or the power plug.
If the power cord is used while damaged, electric 
shocks, short-circuits or fire will result. Do not damage the power cord, make any modifi -
 
z
cations 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.
Ask an Authorized Service Center to carry out any 
repairs to the power cord that might be necessary.
Insert the power plug securely into the 
wall outlet.
If the plug is not inserted correctly, electric shocks or 
overheating will result. Do not use anything other than the provided power 
 
z
cord.
Do not use plugs which are damaged or wall outlets 
 
z
which are coming loose from the wall.
Clean the power plug regularly to prevent 
it from becoming covered in dust.
Failure to observe this will cause a fire.
If dust builds up on the power plug, the resulting 
 
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humidity can damage the insulation.
If not using the projector for an extended period of 
 
z
time, pull the power plug out from the wall outlet.
Pull the power plug out from the wall outlet and wipe 
it with a dry cloth regularly.
Do not handle the power plug with wet 
hands.
Failure to observe this will result in electric shocks.
Do not overload the wall outlet.
If the power supply is overloaded (ex., by using too many 
adapters), overheating may occur and fire will result
.
ON USE/INSTALLATION
 
„
Do not place liquid containers on top of 
the projector.
If water spills onto the projector or gets inside it, fire or 
electric shocks will result.
If any water gets inside the projector, contact an 
Authorized Service Center.
Do not place the projector on soft materi -
als such as carpets or sponge mats.
Doing so will cause the projector to overheat, which 
can cause burns, fire or damage to the projector.
Do not set up the projector in humid or 
dusty places or in places where the pro -
jector may come into contact with oily 
smoke or steam, ex a bathroom.
Using the projector under such conditions will result 
in fire, electric shocks or components deterioration. 
Components deterioration (such as ceiling mount 
brackets) may cause the projector which is mounted 
on the ceiling to fall down.
Do not install this projector in a place 
which is not strong enough to take the 
full weight of the projector or on top of a 
surface which is sloped or unstable.
Failure to observe this will cause projector to fall down 
or tip over the projector, and severe injury or damage 
could result.
Do not place another projector or other 
heavy objects on top of the projector.
Failure to observe this will cause the projector to 
become unbalanced and fall, which could result in 
damage or injury. The projector will be damaged or 
deformed.
Installation work (such as ceiling sus -
pension) should only be carried out by a 
qualified technician.
If installation is not carried out and secured correctly it 
can cause injury or accidents, such as electric shocks.
Do not use anything other than an Authorized ceil -
 
z
ing mount bracket.
Do not cover the air inlet port or the air 
outlet port.
Doing so will cause the projector to overheat, which 
can cause fire or damage to the projector.
Do not place the projector in narrow, badly venti-
 
z
lated places such as closets or bookshelves.
Do not place the projector on cloth or papers, as  
z
these materials could be drawn into the air inlet port.
Do not place your hands or other objects 
close to the air outlet port.
Doing so will cause burns or damage your hands or 
other objects.
Heated air comes out of the air outlet port. Do not 
 
z
place your hands or face, or objects which cannot 
withstand heat close to this port.
Precautions with regard to safety 
						

							Precautions with regard to safety
Important 
Information
ENGLISH - 7
Do not look into or touch the lights emit -
ted from the lens while the projector is 
being used. 
Doing so can cause burns or loss of sight.
Strong light is emitted from the projector’s lens. Do 
 
z
not look or place your hands directly into this light.
Be especially careful not to let young children look 
 
z
into the lens. In addition, turn off the power and 
disconnect the power plug when you are away from 
the projector.
Do not insert any foreign objects into the 
projector.
Doing so will cause fire or electric shocks.
Do not insert any metal objects or flammable ob -
 
z
jects into the projector or drop them onto the pro -
jector.
Never attempt to remodel or disassemble 
the projector.
High voltages can cause fire or electric shocks.
For any inspection, adjustment and repair work, 
please contact an Authorized Service Center.
ACCESSORIES
 
„
Do not use or handle the batteries im
-
properly, and refer to the following. 
Failure to observe this will cause burns, batteries to 
leak, overheat, explode or catch fire.
Do not use unspecified batteries.
 
z
Use manganese batteries or alkaline batteries but 
 
z
not rechargeable batteries.
Do not dissemble dry cell batteries.
 
z
Do not heat the batteries or place them into water 
 
z
or fire.
Do not allow the + and – terminals of the batteries 
 
z
to come into contact with metallic objects such as 
necklaces or hairpins.
Do not store batteries together with metallic ob -
 
z
jects.
Store the batteries in a plastic bag and keep them 
 
z
away from metallic objects.
Make sure the polarities (+ and –) are correct when 
 
z
inserting the batteries.
Do not use a new battery together with an old bat -
 
z
tery or mix different types of batteries.
Do not use batteries with the outer cover peeling 
 
z
away or removed.
Remove the empty batteries from the remote con -
 
z
trol at once.
Insulate the battery using tape or something similar 
 
z
before disposal. 
Do not allow children to reach the batter -
ies.
The battery can cause death by suffocation if swal -
 
z
lowed.
If swallowed, seek medical advice immediately.
 
z
If the battery fluid leaks, do not touch it 
with bare hands, and take the following 
measures if necessary.
Battery fluid on your skin or clothing could result in 
 
z
skin inflammation or injury.
Rinse with clean water and seek medical advice 
immediately.
Battery fluid coming in contact with your eyes could 
 
z
result in loss of sight. 
In this case, do not rub your eyes. Rinse with clean 
water and seek medical advice immediately.
Do not disassemble the lamp unit.
If the lamp breaks, it could cause injury.
Lamp replacement
The lamp has high internal pressure. If improperly 
handled, an explosion and severe injury or accidents 
will result.
Replacement of the lamp should be carried out by 
 
z
a qualified technician.
The lamp can easily explode if struck against hard 
 
z
objects or dropped.
Before replacing the lamp, be sure to disconnect 
 
z
the power plug from the wall outlet.
Electric shocks or explosions can result if this is not 
done.
When replacing the lamp, allow it to cool for at least 
 
z
one hour before handling it otherwise it can cause 
burns.
Do not allow infants or pets to touch the 
remote control unit.
Keep the remote control unit out of the reach of 
 
z
infants and pets after using it.
CAUTION
POWER
 
„
When disconnecting the power cord, hold 
the plug, not the lead.
If the power cord itself is pulled, the lead will become 
damaged, and fire, short-circuits or serious electric 
shocks will result.
When not using the projector for an ex
-
tended period of time, disconnect the 
power plug from the wall outlet and re -
move the batteries from the remote con-
trol.
Disconnect the power plug from the wall 
outlet before carrying out any cleaning.
Electric shocks can result if this is not done. 
						

							Precautions with regard to safety
Important 
Information
8 - ENGLISH
ON USE/INSTALLATION
 
„
Do not put your weight on this projector.
You could fall or the projector could break, and injury 
will result.
Be especially careful not to let young children stand 
 
z
or sit on the projector.
Do not place the projector in extremely 
hot locations.
Doing so will cause the outer casing or internal com -
ponents to deteriorate, or result in fire. Take particular care in locations exposed to direct 
 
z
sunlight or near stoves.
Always disconnect all cables before mov-
ing the projector.
Moving the projector with cables still attached can 
damage the cables, which will cause fire or electric 
shocks to occur.
ACCESSORIES
 
„
Do not use the old lamp unit.
If used it could cause lamp explosion.
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 will 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 will cause 
injury.
If you believe that you have absorbed the gas or that 
the gas has got into your eyes or mouth, seek medi -
cal advice immediately.
Ask your dealer about replacing the lamp unit and 
check the inside of the projector.
Do not use projectors with the adjustable 
feet or lens cover removed.
If this not observed, the sets will not operate correctly 
or accidents will result.
Cautions when transporting
When transporting the projector, the adjuster legs 
must be housed and do not hold them. Please se -
curely hold only its bottom and none of its other parts 
or surfaces as this will result in malfunctions.
When transporting, keep the projector in the 
provided carrying bag. Face the lens of the projector in an upward direc -
 
z
tion and put it gently into the carrying bag.
Do not put anything other than the projector and its 
 
z
accessories in the carrying bag.
Cautions when installing
Do not use under the following 
 
„
conditions.
Do not set up the projector outdoors.
 
z
The projector is designed for indoor use only.
Avoid setting up in places which are subject to 
 
z
vibration or shocks.
If the projector is installed in a place where vibra -
tions are transmitted or mounted in a car or a ves -
sel, vibrations or impacts will result in damage to 
the internal parts, causing failure. Install the product 
in a place free from vibrations and impacts.
Avoid setting up in places which are subject to 
 
z
sudden temperature changes, such as near an 
air conditioner or lighting equipment.
Failure to observe this will result in malfunctions or 
the lamp life will be shortened.
See “TEMP indicator” on page 4 6.
Avoid setting up in places which are near high-
 
z
voltage power lines or near motors.
The product will be exposed to interference if it is 
installed in the vicinity of high-voltage electrical 
power lines  or power sources.
 
z Do not install the projector at elevations higher 
than 2 700 m (8 858 ft) above sea level.
If using this projector at high elevations 1 400 - 
 
2 700 m (4 593 - 8 858 ft) above sea level, set the 
HIGH ALTITUDE MODE to ON.
Failure to observe this will result in malfunctions 
or the lamp life or life of other components will be 
shortened.
Be sure to ask a specialised tech-
 
„
nician when installing the product 
to a ceiling.
If the product is to be installed hanging from the ceil -
ing, purchase an optional hanging attachment (Model 
No. ET-PKB80). Please call a specialised technician 
or contact an Authorized Service Center for installa -
tion.
Lens Focus
 
„
Do not adjust the lens focus in the initial period after 
switching the projector on. The high clarity projector 
lens is thermally affected by the light from the light 
source, making the focus unstable in the period just 
after switching on. Please allow a warm-up time of at 
least 30 minutes before adjusting the lens focus. 
						

							Precautions with regard to safety
Important 
Information
ENGLISH - 9
Cautions on use
In order to get the picture quality
 
„
Draw curtains or blinds over windows and turn off any 
lights near the screen to prevent outside light or light 
from indoor lamps from shining onto the screen.
Depending on where the projector is used, air exhaust 
vents or the warm air from air conditioning can cause 
a shimmering effect on the screen. For this reason, 
take care not to shield the air exhaust vents and con
-
sider the direction of the air flowing from air condition -
ing.
Do not touch the surface of the 
 
„
projector lens cover with your 
bare hand.
If the surface of the lens becomes dirty from finger-
prints or anything else, this will be magnified and 
projected onto the screen.
Do not move the projector while it 
 
„
is operating or subject it to vibra -
tion or impact.
The service life of its internal components will be 
shortened.
The projector has a high pressure  
„
mercury lamp that is characterized 
as follows:
The brightness of the lamp will decrease over time.
 
z
The lamp may explode or shorten the lamp life by 
 
z
shocks or chipping damage.
In rare cases, it may burst shortly after the first use.
 
z
The possibility of its bursting increases when the 
 
z
lamp is used beyond the replacement time.
If the lamp bursts, gas inside the lamp is released 
 
z
in the form of smoke.
The life of a mercury lamp varies according to the 
 
z
individual difference or conditions of use.
In particular, turning the power on and off frequently 
 
z
and/or repeatedly as well as continuous use for 
10 hours will greatly affect the life cycle. Provide a 
lamp for replacement in advance.
Connection to external device
 
„
When connecting the projector to a computer or 
external device, use the power cord supplied with the 
corresponding device and a commercially available 
shielded interface cable.
Optical components
 
„
It may be necessary to replace the optical compo
-
nents such as Liquid crystal panels and Polarizing 
plates in less than 1 year if using the projector in a 
high temperature environment or in a very dusty, oily 
smoke or tobacco smoke environment. For more   
details, please contact your dealer.
Liquid crystal panel
 
„
The Liquid crystal panels are precision-made. Note 
that in rare cases, pixels of high precision could be 
missing or always lit, but this is not a malfunction.
Do not project the same image for long periods of 
time, as this may remain as an afterimage on the liq
-
uid crystal panel. Display the white screen test pattern 
for more than an hour to remove it. See “TEST PAT -
TERN” on page 4 2.
Security
Take safety measures against fol -
 
„
lowing incidents.
Personal information being leaked via this product.
 
z
Unauthorized operation of this product by a mali -
 
z
cious third party.
Interfering or stopping of this product by a malicious 
 
z
third party.
Security instruction
 
„
The connecting network must be secured by fire
-
 
z
wall or others.
Change your password regularly.
 
z
Do not use a password that is simple to guess.
 
z
Panasonic and its affiliate companies would never 
 
z
directly inquire about your password.
Do not share your password with the general pub -
 
z
lic.
Set a password, and place restrictions on the users 
 
z
who can log in.
Cleaning and maintenance
Ask an Authorized Service Center 
 
„
to clean the inside of the projec -
tor 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 when humid weather ar -
rives.
Ask your nearest Authorized Service Center to clean 
the projector when required.
Please discuss with the Authorized Service Center 
regarding cleaning costs.
Disposal
When discarding this product, please contact your lo -
cal authorities or dealer and ask for the correct meth -
od of disposal. 
						

							Precautions with regard to safety
Important 
Information
10 - ENGLISH
Accessories
Make sure the following accessories are provided with your projector.
Remote control for  
PT-LB90NTU (×1)  
(N2QAYB000436)  Remote control for  
PT-LB90U/LB78VU/  
LB75VU (×1)  
(N2QAYB000262)Power cord (×1)  
(K2CG3DR00008)RGB signal cable (×1)  
1.8 m (5'10") 
(K1HA15DA0002)
Power cord  
secure lock (×1)  
(TTRA0185)AA batteries for  
Remote control (×2)
Carrying bag (×1)  
(TPEP021)CD-ROM (×1) 
(TXFQB02VKJ2)
(PT-LB90NTU only)
Note The protectors for enclosed products, such as a plug cover or foam carto\
ns, must be treated properly.
 
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Contact to an Authorized Service Center for lost accessories. 
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