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...

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....

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...

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...

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...

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...

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...

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...

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  )...

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...