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

							PROJECTOR SETUP menu
Settings
ENGLISH - 41
FUNCTION BUTTON
You can select a useful function from the list and 
assign it to the FUNCTION button as a short-cut.
Press the MENU button of the control 
1  ) 
panel or remote control to display the 
on screen menu (main menu, sub-
menu or detailed menu).
For the menu operation, see “Navigating through 
the MENU”. (
Æpage 27 )
Press and hold the FUNCTION button 
2  ) 
of the control panel or remote control 
for at least 3 seconds.
When not using the FUNCTION button
 
Q
Select DISABLE in this menu 
 
1  ) 
(FUNCTION BUTTON in the   
PROJECTOR SETUP menu).
Press the ENTER button.
2  ) 
Select OK.
3  ) 
Press the ENTER button.
4  ) 
Remarks
After the setting is completed, the text color and 
 
z
button color will change.
You can assign all the menu items, excluding the 
 
z
sub-menu of the SECURITY menu (PASSWORD, 
PASSWORD CHANGE, TEXT DISPLAY, 
TEXT CHANGE, MENU LOCK, MENU LOCK 
PASSWORD and CONTROL DEVICE SETUP).
The displayed menu screen will disappear after 5 
 
z
seconds without any operation, and the setting will 
be confirmed.
AUDIO SETTING
You can perform more detailed setting for Audio.
 
JVOLUME
You can adjust the volume of the built-in monaural 
speaker and 
VARIABLE AUDIO OUT terminal.
-1+1
BALANCE 
J
You can adjust to hear the sound played equally 
through both right and left external stereo speakers,
 
or shift the balance so more sound plays through 
the left or right side.
Left
Right
IN STANDBY MODE 
J
You can turn ON or OFF the audio output in the 
standby mode.
Change setting
Change setting
OFF Deactive
ON Active
Remarks When 
 
zSTANDBY MODE is set to  ECO, the audio 
output cannot be activated in the standby mode.
 
JPOWER BUTTON BEEP
You can set the operational sound (beep) heard 
when the power is turned off/on.
Change setting
Change setting
OFFWhen the power is turned off/on *, the 
operational sound (beep) is not heard
.
ON When the power is turned off/on, the 
operational sound (beep) is heard.
The operational sound is heard when the button : 
¸
on the control panel  is pressed after the power is 
connected.
AUDIO IN SELECT 
J
You can select to connect the audio input of the 
devices connected to 
COMPUTER1/COMPUTER2 
to the 
COMPUTER AUDIO IN or AUDIO IN  
terminal.
Change settingChange setting
AUDIO IN SELECT
COMPUTER1 IN Select COM. AUDIO IN or 
AUDIO IN terminal
COMPUTER2 IN Select COM. AUDIO IN or 
AUDIO IN terminal 
						

							PROJECTOR SETUP menu
Settings
42 - ENGLISH
TEST PATTERN
You can use the 7 different test patterns to adjust 
the focus of the image. Press the ENTER button to 
display the test pattern.Change pattern
Change 
pattern
Press the MENU or RETURN button to return to the 
PROJECTOR SETUP menu, or press repeatedly to 
escape the menu mode.
RemarksThe initial screen is an all white pattern. Only when 
 
z
TEST PATTERN is assigned to the FUNCTION 
button, the lattice pattern will display in the initial 
screen.
INITIALIZE ALL
You can reset all of the customised settings in the 
MENU to the factory defaults.
If the  
zENTER button is pressed in the INITIALIZE ALL 
menu, INITIALIZE ALL will display. Select OK and 
press the ENTER button, NOW INITIALIZING...  is 
displayed. Then, POWER OFF  is displayed.
Select OK and turn off the power according to the 
instruction. (All other buttons are deactivated.)
The  
zINITIAL SETTING menu screen will display 
when the power is connected.
 
(
Æpage 11)
Remarks The usage time of the projector, lamp runtime and 
 
z
the NETWORK settings are not initialised.
When 
 
zPASSWORD in SECURITY menu is 
activated, be sure to enter the correct password 
when initialised.
After 
 
zINITIALIZE ALL operation is completed, the 
password is reset to the factory default setting and 
PASSWORD setting is turned OFF . 
						

							SECURITY menu
Settings
ENGLISH - 43
SECURITY menu
Navigating through the MENU (Æpage 27),  
select SECURITY from the main menu and then  
select the required item from the sub-menu.
When you apply to the 
 
zSECURITY menu for 
the first time, you will be asked to perform the 
password operation. Input the initial password by 
pressing ▲►▼◄▲►▼◄ buttons in order and 
then press the ENTER button.
Set the selected item with◄►buttons.
 
z
Remote controlControl panel
Note
Perform the above operation after the 
 
zSECURITY 
menu is displayed.
If you have changed the password, input the new 
 
z
password and press the  ENTER button.
PASSWORD
You can activate the security system and the 
password operation will be asked to perform when 
projecting mode started.
Change setting
Change setting
OFF Deactive
ON Active
Remarks PASSWORD
 
z is set to  OFF by default and when 
initialised.
Change your password regularly. Do not use a 
 
z
simple password that is too easy to guess.
Unless you perform the correct password operation, 
 
z
all of the button controls will be disabled except the 
POWER button.
PASSWORD CHANGE
You can change the password operation to your original.
Press▲▼◄►buttons to change the 
1  ) 
password.
(Up to eight button operations can be set.)
Press the ENTER button.
2  ) 
Input the password again and press 
3  ) 
the ENTER button.
Remarks
The entered password operations will appear as 
 
z
asterisks in the box.
If a series of button operation is incorrect, you will 
 
z
be asked to perform again.
TEXT DISPLAY
You can set your original text to display regularly at 
the bottom of the projected image while projecting.
Change setting
Change setting
OFF Deactive
ON Active
TEXT CHANGE
You can enter your original text to be displayed when 
TEXT DISPLAY is turned ON.
Press▲▼◄►buttons to select the required 1 ) 
character and press the ENTER button.
(You can input up to 22 characters.)
To delete all the entered characters, move the 
cursor to ALL DELETE and press the ENTER 
button. To delete a character, press the DEFAULT 
button or move the cursor to the required 
character then press the DEFAULT button.
ALL DELETE
OK CANCEL
TEXT CHANGE
SPACE
Press▲▼◄►buttons to select OK and 
2  ) 
press the ENTER button.
Select CANCEL or press the MENU/RETURN  
button to return to the previous menu without 
setting. 
						

							SECURITY menu
Settings
44 - ENGLISH
MENU LOCK
Press the MENU button to display the menu. You can 
lock or unlock the menu operation.Change setting
Change setting
OFF Unlock the menu operation
ON Lock the menu operation
Remarks Once 
 
zMENU LOCK is set to  ON, you cannot use 
the MENU button unless you input the correct 
password.
The 
 
zMENU LOCK is set to  OFF by default and 
when initialised.
MENU LOCK PASSWORD
When MENU LOCK is set to  ON, you can set a 
MENU LOCK PASSWORD.
Press▲▼◄►buttons to select the   
1  ) 
required character and press the  
ENTER button.
(You can input up to 16 characters.)
To delete all the entered characters, move the 
cursor to ALL DELETE and press the ENTER 
button. To delete a character, press the DEFAULT 
button or move the cursor to the required 
character then press the DEFAULT button.
ALL DELETE
OK CANCEL
MENU LOCK PASSWORD
SPACE
Press▲▼◄►buttons to select OK and 
2  ) 
press the ENTER button.
Select CANCEL or press the MENU/RETURN  
button to return to the previous menu without 
setting.
Remarks When using the projector for the first time or after 
 
z
INITIALIZE ALL operation is activated, the initial 
password is set as AAAA .
Change your password regularly. Do not use a 
 
z
simple password that is too easy to guess.
To reset the password to the initial password, see 
 
z
“MENU LOCK PASSWORD” (Æpage 54 ).
CONTROL DEVICE SETUP
You can enable/disable the button operations of the 
control panel and remote control.
Change setting
Change setting
 
JCONTROL PANEL
ENABLE
Enable the button operations
DISABLE
Disable the button operations
REMOTE CONTROLLER 
J
ENABLE
Enable the button operations
DISABLE Disable the button operations
Remarks If 
 
zDISABLE is set, the confirmation screen appears. 
Select OK and press the ENTER button.
If any button is pressed when 
 
zDISABLE is set, the 
password screen appears.  
Input the password which is set in the  SECURITY 
menu.
The 
 
zPASSWORD screen will be displayed for 10 
seconds.
If you set both 
 
zCONTROL PANEL and REMOTE 
CONTROLLER to DISABLE, all the button 
operations of the control panel and remote control 
are disabled and you cannot turn off the power.
In the standby mode, press and hold the 
 
zENTER 
button of the control panel and  MENU button for at 
least 2 seconds. The buttons on the control panel 
are enabled.   
You can also enable the button operation by 
pressing and holding the  ENTER button of the 
control panel and  MENU button for at least 2 
seconds while the projector is projecting. 
						

							NETWORK menu (PT-LB90NTU only) 
Settings
ENGLISH - 45
NETWORK menu (PT-LB90NTU only) 
Navigating through the MENU (Æpage 27),  
select NETWORK from the main menu and then  
select the required item from the sub-menu.
Set the selected item with◄►buttons.
 
z
Remote controlControl panel
Remarks
These items are set for network connection with a 
 
z
computer. For details of the PJ Link and network, 
see “NETWORK operation manual” in the CD-ROM 
provided.
WIRED LAN 
J
You can set a wired LAN.
WIRELESS LAN 
J
You can set a wireless LAN.
NAME CHANGE 
J
You can change the name of the projector.
INPUT PASSWORD 
J
When checking the password for the network 
connection, you must turn this function 
ON.
PASSWORD CHANGE 
J
You can change the password for the network 
connection.
NETWORK CONTROL 
J
When controlling the projector with a computer on 
the network, you must turn this function ON.
LIVE MODE CUT IN 
J
Set this function to ON to allow other users to 
connect to live mode while the projector is operating 
in the live mode of the network
.
COMPUTER SEARCH 
J
You can search for a computer on the network.
MULTI-LIVE 
J
This function is available when a network input 
signal is detected.
STATUS 
J
You can display the status of the network setting.
INITIALIZE 
J
You can reset the settings of the network to the 
factory default settings.
Remarks When 
 
zPASSWORD in the SECURITY menu is 
activated or the network setting is initialised, you 
will be required to input the password. 
						

							LAMP and TEMP Indicators
Maintenance
46 - ENGLISH
LAMP and TEMP Indicators
Managing the indicated problems
If a problem should occur with the projector, the LAMP and/or TEMP indicators will inform you. 
Manage the indicated problems as follows.
NoteWhen managing a problem, be sure to turn off the power as described in “Switching off the projector”. 
 
z(Æpage 
22)
Remarks Confirm the power supply status by the 
 
zPOWER indicator. (Æpage 20 )
POWERFOCUSZOOMRELEASEINPUT SELECTFUNCTIONMENUENTERR ETURN
STANDBY (
RED )
/ON (GREEN)LOCKLAMP
TEMP
LAMP indicator
TEMP indicator
 
JLAMP indicator
Indicator
Illuminating red 
zFlashing red 
z
Problem LAMP RUNTIME has reached 
 
2 800 hours. LAMP circuit failure, abnormal function or the lamp unit 
is damaged.
Cause Lamp unit will run out soon and 
needs to be replaced. The projector is 
switched on again 
too soon.LAMP circuit 
failure, abnormal 
function.
Lamp unit is 
damaged.
Remedy See “Replacing the Lamp unit”. 
(
Æpage 48
) Let the lamp unit 
cool down and turn 
on the projector 
after 90 seconds.Switch off the 
projector (
Æpage 
22) and contact 
an Authorized 
Service Center. See “Replacing 
the Lamp unit”.
(
Æpage 48
)
Remarks If the 
 
zLAMP indicator still lights or flashes after the above remedy, contact an Authorized Service Center.
 
JTEMP indicator
Indicator Illuminating red while projecting and the alert will be displayed. 
z
Flashing red and power is turned off. 
z
Problem The temperature inside and/or outside the projector is abnormally high.
The projection may becomes darker than usual. 
z
The internal fan operational noise may be louder than usual. 
z
Cause The air outlet port 
and air intake ports 
are covered. The room tempera
-
ture is too high. The filter is exces-
sively dirty and the 
ventilation is poor.The projector is located at 
 
1 400 - 2 700 m (4 593 -  
8 858 ft).
Remedy Remove the 
object(s) from the 
air outlet port and 
air intake ports or 
clear around the 
projector. Reinstall the projector 
in temperature 
 
controlled place. 
(
Æpage 56 ) Clean the filter in 
the proper method. 
 
(Æpage 47 ) Turn on the projector*
1 and 
set the HIGH ALTITUDE 
MODE to ON. (
Æpage 39 )
The projector will perform 2 minutes with 
*1:  OFF setting at high elevation.
Remarks
Take the above remedy, disconnect the power plug, and then supply the power again. If the 
 
zTEMP indicator 
still lights or flashes after the above remedy, contact an Authorized Service Center.
If the environment temperature in the projector rises, the fan speed inc\
reases and the sound becomes louder.
 
z 
						

							Care and Replacement
Maintenance
ENGLISH - 47
Care and Replacement
Before Care and Replacement
Before cleaning, be sure to turn off the power and disconnect the power plug from the wall outlet.  
z
(Æpage 19 )
Be sure to turn off the power as described in “Switching off the projector”. 
 
z(Æpage 22)
Cleaning the projector
Cabinet 
J
Wipe off dirt and dust gently with a soft cloth.
If it is difficult to remove the dirt, soak a cloth with water, wring the cloth well and then wipe the projector. 
 
z
Dry off the projector with dry cloth.
Do not use petroleum benzine, thinner, any alcoholic solvent, kitchen detergents or chemical clothes. 
 
z
Failure to observe these may result in altered or damaged surfaces of th\
e projector.
 
JLens cover
Make sure no dirt or dust remains on the surface of the lens cover glass\
. It will be enlarged and projected onto 
the screen. 
Wipe off dirt and dust gently with a lint-free cloth. Do not wipe the lens cove\
r with a cloth which has collected 
dust.
Note Clean the lens cover with special care. Giving a shock may cause serious\
 damage.
 
z
 
JAir filter
If the air filter is excessively dirty, the internal temperature of the projector increases, the 
TEMP indicator 
lights, and the power is turned off. If the power is turned off, the  TEMP indicator flashes. Clean the air filter 
regularly every 100 hours of usage.
1  )  Turn the projector upside down and place 
it gently on a soft cloth.
Place the projector softly so that it will not be  
z
damaged.
Press the tab and slightly slide up the air filter to  
z
remove.
Tab
Air filter
2 )  Clean the air filter.
Vacuum dirt and dust from the air filter.
3 )  Install the air filter.
Remarks
Do not use the projector without attaching the air filter. Otherwise, it will suck in dirt and dust which can cause 
 
z
malfunction. 
						

							Care and Replacement
Maintenance
48 - ENGLISH
Replacing the Lamp unit
Air filter 
J
The air filter should be replaced when cleaning is ineffective and when replacing the lamp unit. A replacement 
air filter is provided with a replacement lamp unit (ET-LAB80). Contact an Authorized Service Center for the 
optional air filter (TXFMZ01VKG7).
Lamp unit 
J
The lamp unit, ET-LAB80 is consumable and you must replace it regularly. It is recommended that a qualified 
technician carry the lamp unit replacement and consult with an Authorized Service Center.
 
JNote on lamp unit replacement
Handle the lamp unit with special care as it is a glass  
z
product. Dropping or giving it a shock may cause it 
to burst or to be damaged.
If you wish to discard the used lamp, please contact 
 
z
your local authorities or dealer and ask for the 
correct method of disposal.
Prepare a Phillips-head screwdriver.
 
z
When replacing the lamp unit, be sure to hold it by  
z
the handle.
Hold the lamp unit horizontally to prevent broken 
 
z
pieces from scattering. When the projector is 
mounted in the ceiling, do not work directly under the 
projector or put your face close to the projector, and pull out the lamp  
horizontally.
Note Prior to replacing the lamp unit, allow it to cool down to prevent the r\
isk of burns, damage and other hazards.
 
z
Remarks
Do not attempt replacement with an unauthorized lamp unit.
 
z
Lamp unit replacement time 
J
When the lamp is consumed, the brightness may decrease over time. 3 000 \
hours of use is the replacing 
time as a rough guide, and that might be shortened by the usage conditio\
ns, characteristics of the lamp unit 
or environmental conditions. You can find the duration of usage time by checking 
LAMP RUNTIME in the 
PROJECTOR SETUP menu. Do not use a lamp unit over 3 000 hours. Failure to observe this \
may result in 
explosion of the lamp.
ON-SCREEN DISPLAY
REPLACE LAMP
LAMP indicator
2 800 hours Displays “
REPLACE LAMP” on the upper left of the screen 
for 30 seconds. If any button is pressed within 30 seconds, 
the message disappears.  Illuminates red, even in the 
standby mode. 
3 000 hours Displays “
REPLACE LAMP” on the upper left of the screen, 
and it will stay until you respond. The power is turned off 
automatically in 10 minutes.  
Remarks The guide time, 3 000 hours, is a rough estimate based on certain condit\
ions and is not a guaranteed time.
 
z 
						

							Care and Replacement
Maintenance
ENGLISH - 49
 
JLamp replacement procedure
When the projector is mounted in the ceiling, do not work directly under\
 the projector or put your face close  
z
to the projector.
Be sure to install the lamp unit and attach the lamp unit cover securely\
. If they are not installed securely, it 
 
z
may cause the protection circuit to operate so that the power cannot be \
turned on.
Disconnect the power plug from the wall outlet according to “Switchin\
g off the 
1  ) 
projector” (
Æpage 22), wait for at least 1 hour, and check if the lamp unit bottom is 
cooled.
Use a Phillips-head screwdriver to loosen the 2 lamp unit cover fixing screws on the 2  ) 
back of the projector until the screws turn loose, and remove the lamp u\
nit cover.
Lamp unit cover 
fixing screws
Lamp unit cover
Use a Phillips-head screwdriver to loosen the 3 lamp unit fixing screws. Pull the 
3  ) 
used lamp unit gently from the projector.
Handles
Lamp unit  
fixing screws
Press in the lamp unit until it clicks and make sure the unit is install\
ed securely. 
4  ) 
Tighten the 3 lamp unit fixing screws securely with a Phillips-head screwdriver.
When inserting, in particular press the portion of  securely. 
Lamp unit cover 
fixing screws 
						

							Care and Replacement
Maintenance
50 - ENGLISH
Attach the lamp unit cover and tighten the 2 lamp unit cover fixing screws securely 5 ) 
with a Phillips-head screwdriver.
Connect the power cord to a wall outlet.
6  ) 
Press the POWER button and the projection starts.
7  ) 
Remarks
If 
 
zINITIAL START UP in the PROJECTOR SETUP menu is set to ON, the projector starts projecting when the 
power cord is connected to a wall outlet.  (
Æpage 39)
Press the MENU button to display the main menu and press▲▼buttons to scroll to 
8  ) 
the PROJECTOR SETUP menu.
Press the ENTER button to select the PROJECTOR SETUP menu and 
9  ) 
press▲▼buttons to select LAMP RUNTIME.
Press and hold the ENTER button for approximately 3 seconds.
10  ) 
The  
zLAMP RUNTIME confirmation screen is displayed.
LAMP  RUNTIME
LAMP  RUNTIME RESET .
OK
CANCE L
PRESS  ANY OTHER BUTT ON
PRESS       BUTT
ON
Note
If any button other than the 
 
zPOWER button is pressed, the LAMP RUNTIME screen disappears and the lamp 
runtime is not reset. (Repeat from step 8 again).
Press the POWER button.1 1  ) 
After the lamp goes off, projection stops and the  
zPOWER button lights in red, then disconnect the power 
plug.
The lamp runtime is reset to “0”.12  )