Panasonic LCD Projector PT-LB80NTU PT-LB80U PT-LB75NTU PT-LB75U Operating Instructions

							Basic Operation
Switching the projector on/off
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The POWER indicator informs you the status of the 
power and the POWER LOCK indicator shows the 
status of the RELEASE button.
JPOWER LOCK indicator status
JPOWER indicator status
POWER and POWER LOCK indicators
POWER
indicator POWER LOCK
indicator
Indicator statusStatus
No illumination or flashing No power is supplied.
 The RELEASE button is pressed and the POWER button is unlocked.
 The power is on.
RedLitThe POWER button is locked.
FlashingPressing the locked POWER button.
Indicator status*1
*1. When the LAMP or TEMP indicator is flashing, the POWER indicator will not light.
Status
No illumination or flashingNo power is supplied and the internal cooling fan is not operating.
RedLit
The power is supplied and in standby mode
*2, and the POWER button is locked.
*2. The electric consumption in standby mode is 4.0 W.
FlashingPreparing for wireless connection.
(PT-LB80NTU/PT-LB75NTU only)
GreenFlashingThe power is on and preparing for projection.
LitProjecting.
OrangeLitNo power supply and the internal fan is cooling the lamp by internal power supply.
FlashingThe power is switched on again while cooling the lamp and recovering to the 
projection mode. Recovery may take a while. 
						

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Basic Operation
Projecting an image
1. Switch on the connected devices.
 Press the play button of the required device.
2. Detect the input signal automatically.
3. Switch the aspect ratio automatically.
1. Place the projector at the right angle from the 
screen.
2. Adjust the vertical angle of the projector.
 Press the front leg adjuster buttons and adjust the 
vertical angle.
 See “Front leg adjusters and throwing angle” on 
page 16.
3. Open the Zoom-Focus ring cover.
 See “Zoom-Focus ring cover” on page 12.
4. Turn the zoom and focus rings to adjust the 
projected image.
 You can confirm the adjusted effect with the TEST 
PATTERN in OPTION menu. See “TEST PATTERN” 
on page 36.
Selecting the input signal
NOTE:
• If the SIGNAL SEARCH in OPTION menu is 
deactivated, select the required input method by 
pressing the INPUT SELECT buttons of the remote 
control or the INPUT SELECT button of the projector 
several times. See “SIGNAL SEARCH” on page 35, 
“Switching the input signal” on page 24 or “INPUT 
SELECT button” on page 12.
• See “ASPECT” on page 32.
Positioning the image
Screen
NOTE:
• Do not touch the air exhaust port as this may cause 
burns or injury.
• If keystone distortion occurs, see “KEYSTONE” on 
page 32.
• If you adjust the focus, you may need to adjust the size 
of the image by moving the zoom ring again.
Focus ring
Zoom ring 
						

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Basic Operation
Remote control operation
You can operate the projector with the remote control 
within the remote range 15 m (492), approximately 
± 30° vertically and horizontally.
QFacing to the projector
Make sure the remote control emitter is facing to 
the remote control signal receptor of the projector 
when pressing the buttons to operate.
QFacing to the screen
Make sure the remote control emitter is facing to 
the screen when pressing the buttons to operate 
the projector. The signal will be reflected off the 
screen to the projector.
 The operating range may differ due to the screen 
material, and this function may not be effective with a 
translucent screen.
If you need to readjust the projected image 
position while projecting or when AUTO SETUP 
in OPTION menu is set to OFF, press the AUTO 
SETUP button.
The projector will detect a RGB signal by SIGNAL 
SEARCH system and adjust the setting of POSITION, 
DOT CLOCK and CLOCK PHASE in POSITION menu 
automatically.
Operating range
NOTE:
• See “About Your Projector” on page 12 to confirm the 
position of the remote control signal emitter and 
receptor.
• Do not let strong light shine onto the signal receptor. 
The remote control may malfunction under strong light 
such as fluorescent.
• If there are any obstacles between the remote control 
emitter and the remote control signal receptor, the 
remote control may not operate correctly.
Setting up the image position automatically
NOTE:
• If SIGNAL SEARCH setting in OPTION menu is set to 
OFF, select the required signal manually first. See 
“Switching the input signal” on page 24.
• If the dot clock frequency is 108 MHz or higher, AUTO 
SETUP is not effective.
• If the projected image is too dark or blurred around the 
edge, AUTO SETUP may stop the processing before 
complete the adjustment and return to the previous 
setting. Project a much clearer or lighter image and try 
again.
Screen Projected image 
						

							Basic Operation
Remote control operation
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You can switch the input method manually by 
pressing the COMPUTER, WIRELESS 
(PT-LB80NTU/PT-LB75NTU only) and 
VIDEO buttons. Press the required button 
several times or I H to cycle through the 
input methods as follows.
 You can confirm the selected input method in displayed 
graphical input guide on the upper right of the screen. 
Highlighted in yellow is selected terminal. See “INPUT 
GUIDE” on page 34.
QPressing the COMPUTER buttonQPressing the WIRELESS button
 The WIRELESS button is only for PT-LB80NTU/
PT-LB75NTU.
 See CD-ROM contents for more detailed information.
QPressing the VIDEO button
QPressing the INPUT SELECT button on 
the projector
Press the FREEZE button to capture the image 
and you can see it as a still picture. While the 
image is frozen, the audio sound through the projector will stop. Press the FREEZE button again to 
escape and return to the continuing image.
You can stop the projection and audio sound 
through the projector temporarily for saving electrical power. Press the AV MUTE button again to 
escape.
You can reset most of the customised settings 
to the factory defaults by pressing the 
DEFAULT button of the remote control. Display 
the required sub menu or the menu items and press the 
DEFAULT button again.
 See “Main menu and Sub-menu” on page 28.
Switching the input signal
COMPUTER1 COMPUTER2
NOTE:
• Only when the COMPUTER2 SELECT is set to INPUT, 
you can switch between COMPUTER1 and 
COMPUTER2.
• With no signals from COMPUTER terminals, the 
computer connecting guidance will be displayed. See 
“Computer connection guidance” on page 46.
VIDEO
S-VIDEO
COMPUTER2
COMPUTER1
S-VIDEO
WIRELESS
*1
*1.WIRELESS is only for PT-LB80NTU/PT-LB75NTU.VIDEO
NOTE:
• Switched signal may be displayed after a short interval.
• If you select an unplugged input method, the input guidance will blink on and off several times.
• See “List of compatible signals” on page 44.
• See “Connections” on page 17.
Capturing an image
Stopping the projection temporary
Resetting to the factory default settings
NOTE:
• Some menu items are not available to reset by pressing 
the DEFAULT button. Adjust each menu items 
manually.
• To reset all the settings to the factory defaults, see 
“INITIALIZE ALL” on page 36. 
						

							Basic Operation
Remote control operation
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You can project an image split in 2 windows 
as an INDEX-WINDOW. One is frozen and 
stored in memory, and displayed on the 
screen’s left side while displaying subsequent image 
continues on the right.
Press the MENU or RETURN button to escape.
QSwitching the position
In default, the frozen image is displayed on the left 
and the subsequent image is displayed on the 
right. Press IH to switch the position.
QChanging the image size
Press F G to capture a new image and change 
the size in 3ways.
QCapturing a new image
While in INDEX-WINDOW mode, press the 
ENTER button to capture a new image and the 
frozen image window will be updated in a moment.
You can assign a selected function to the 
FUNCTION button. 
 Following functions are assignable. See 
“FUNCTION BUTTON” on page 36 for assigning 
procedure.
You can control the volume of the built-in 
speakers and output audio sound. Press “+” 
side of the VOLUME button to increase and “-
” to decrease. 
Projecting an image in INDEX-WINDOW mode
Projected imageFrozen image
Continuing image
Frozen image
Continuing image
Continuing image
Frozen image
NOTE:
• If you change the window size, the aspect ratio of the 
image is changed and becomes vertically elongated.
NOTE:
• When capturing a quick moving picture, perform 
several times to get a stabled picture.
Frozen image
Continuing image
Using an assigned function
AV MUTESee “Stopping the projection 
temporary” on page 24.
FREEZESee “Capturing an image” on 
page 24.
AUTO SETUPSee “Setting up the image 
position automatically” on 
page 23.
INDEX-WINDOWSee “Projecting an image in 
INDEX-WINDOW mode” on 
page 25.
ASPECTSee “ASPECT” on page 32.
PICTURE MODESee “PICTURE MODE” on 
page 30.
CLOSED CAPTION 
SETTINGSee “CLOSED CAPTION 
SETTING” on page 36.
Controlling the volume of the speaker 
						

							Basic Operation
Remote control operation
ENGLISH - 26
You can enlarge the projected image down 
to a centered area for emphasizing within 
the range of 1x to 2x.
QEnlarging the image
1. Press any side of the DIGITAL ZOOM +/- button 
once.
 The centered area of the image will then be enlarged 
2. Adjust the image size by pressing the 
DIGITAL ZOOM +/- button.
 Changes the size of the image in steps of 0.1.
QShifting the center point
Press F G I H to shift the center point.
Enlarging the centered area
Press “-”
Press “+”
NOTE:
• When the COMPUTER signal is projected, the enlargement range will be changed to 1x to 3x. When the FRAME LOCK 
in POSITION menu is set to ON, the enlargement range is 1x to 2x. See “FRAME LOCK” on page 33.
• When the input signal is changed while the DIGITAL ZOOM is activated, the DIGITAL ZOOM will be cancelled.
• While the DIGITAL ZOOM is activated, the AUTO SETUP, FREEZE, DEFAULT, INDEX-WINDOW and FUNCTION 
(except when AV MUTE is assigned) buttons are not available. 
						

							ENGLISH - 27
Settings
Menu Navigation
The menu system allows you to access functions which do not have their own dedicated buttons on the remote 
control. The menu options are structured and categorised. You can navigate through the menu with FGHI 
buttons.
JDisplaying the main menu
Press the MENU button to display the main menu 
and the operating guidance.
JAdjusting with the bar scale 
items
The triangle mark under the bar indicates factory 
default setting and the square indicates the current 
setting.
JReturning to the previous menu
Press the MENU or RETURN button to return to 
the previous menu. Press repeatedly to escape 
from the menu mode and return to the 
projection.
JOperating procedure
1. Press FG to scroll to the required main menu 
item and press the ENTER button to select.
 The selected item is highlighted in orange and 
displays the sub-menu on the right. 
 See “Main menu and Sub-menu” on page 28.
2. Press FG to scroll to the required sub-menu item 
and press IH or the ENTER button to adjust.
 The selected item is called up and the other menu 
items disappear from the screen. Called up item will 
be disappear after 5 seconds without any operation 
and return to the menu mode.
 If there is a lower level, the next level will be 
displayed.
3. Press IH to adjust the bar scale or select the 
required option.
 For items indicated in bar scale type, the current 
settings are displayed on the left of the bar.
 You can cycle through the options of an item by 
pressing IH.
4. Press MENU or RETURN button to return to the 
previous menu.
Navigating through the MENU
PICTURE
POSITIONPICTURE MODE
CONTRAST
BRIGHTNESS
COLOR
TINT
SHARPNESS
COLOR TEMPERATURE
DAYLIGHT VIEW
DETAILED SETUP
LANGUAGE
OPTION
SECURITY
WIRELESS
STANDARD
STANDARD
AUTO
SELECT
ENTER RETURN
Main menu Sub-menuCurrent 
settings
Operating guidance
Contains the required buttons to adjust the settings.
KEYSTONEKEYSTONE
Current setting
Default
PICTURE
POSITION
KEYSTONE
POSITION
DOT CLOCK
CLOCK PHASE
ASPECT
FRAME LOCK
LANGUAGE
OPTION
SECURITY
WIRELESS
4:3 REALTIME KEYSTONE
ON
OFF
SELECT
ENTER RETURN
PICTURE
POSITION
KEYSTONE
POSITION
DOT CLOCK
CLOCK PHASE
ASPECT
FRAME LOCK
LANGUAGE
OPTION
SECURITY
WIRELESS
4:3 REALTIME KEYSTONE
ON
OFF
SELECT
ENTER RETURN
DEFAULT
KEYSTONEKEYSTONE
NOTE:
• See “Resetting to the factory default settings” on page 24 to reset each menu items.
• See “INITIALIZE ALL” on page 36 to reset all the settings. 
						

							Settings
Menu Navigation
ENGLISH - 28
The main menu has 6 options. Select the required menu item and press ENTER to display the sub-menu. Underlined 
items are factory default settings.
 PICTURE  POSITION
 LANGUAGE
Main menu and Sub-menu
NOTE:
• Some default settings vary by the selected input signal.
• sub-menu items vary according to the selected input signal.
• Some settings are adjustable without any signals.
PICTURE MODEpage 30
NATURAL STANDARD
DYNAMIC BLACKBOARD
CONTRASTpage 30
(Default: 0)
BRIGHTNESSpage 30
COLORpage 30
(Signals from S-VIDEO/VIDEO only)
(Default: 0)
TINTpage 30
(Signals from S-VIDEO/VIDEO only)
(Default: 0)
SHARPNESSpage 30
(Default: 0)
COLOR TEMPERATUREpage 30
STANDARDLOW HIGH
DAYLIGHT VIEWpage 30
AUTOOFF ON
DETAILED SETUPpage 31
(Not available with wireless connection)
TV-SYSTEM
AUTO
NTSC NTSC 4.43
PAL PAL-M
PAL-N SECAM
STILL MODE
ONOFF
NOISE REDUCTION
ONOFF
WHITE BALANCE RED (Default: 0)
WHITE BALANCE GREEN (Default: 0)
WHITE BALANCE BLUE (Default: 0)
REALTIME KEYSTONEpage 32
ONOFF
KEYSTONEpage 32
(Not available with wireless connection)
(Default: 0)
POSITIONpage 32
(Not available with wireless connection)
H (Default: 0)V (Default: 0)
DOT CLOCKpage 32
(Signals from COMPUTER only)
(Default: 0)
CLOCK PHASEpage 32
(Signals from COMPUTER only)
(Default: 0)
ASPECTpage 32
(Vary according to the selected input signal)
AUTO
4:3 16:9
S4:3 THROUGH
FRAME LOCKpage 33
(Signals from COMPUTER only)
OFFON 
						

							Menu Navigation
ENGLISH - 29
Settings
 OPTION
 SECURITY
 WIRELESS
(PT-LB80NTU/PT-LB75NTU only)
INPUT GUIDEpage 34
DETAILEDSIMPLE
OFF
STARTUP LOGOpage 34
ONOFF
USER
COMPUTER2 SELECTpage 34
INPUTOUTPUT
RGB/YPBPRpage 34
AUTO
RGB YPBPR
WIDE MODEpage 34
OFF
ON
LAMP POWERpage 35
STANDARDECO-MODE
LAMP RUNTIMEpage 35
POWER OFF TIMERpage 35
DISABLE
15 MIN. 20 MIN.
25 MIN. 30 MIN.
35 MIN. 40 MIN.
45 MIN. 50 MIN.
55 MIN. 60 MIN.
DIRECT POWER ONpage 35
OFFON
CONTROL PANELpage 35
VALIDINVALID
AUTO SETUPpage 35
AUTOBUTTON
SIGNAL SEARCHpage 35
ONOFF
INSTALLATIONpage 35
FRONT/DESKFRONT/CEILING
REAR/DESK REAR/CEILING
ALTITUDEpage 35
LOWHIGH
CLOSED CAPTION SETTINGpage 36
CLOSED CAPTION
OFFON
MODE
CC1 CC2
CC3 CC4
FUNCTION BUTTONpage 36
AV MUTEFREEZE
AUTO SETUP INDEX-WINDOW
ASPECT PICTURE MODE
TEST PATTERNpage 36
DETAILED SETUPpage 36
OSD DESIGN
TYPE1TYPE2
TYPE3
SXGA MODE
SXGASXGA+
BLACKBOARD
ONOFF
BACK COLOR
BLUEBLACK
VOLUME (Default: 20)
AUDIO BALANCE (Default: 0)
INITIALIZE ALL
INPUT PASSWORDpage 37
OFFON
PASSWORD CHANGEpage 37
TEXT DISPLAYpage 37
OFFON
TEXT CHANGEpage 37
NETWORK
NAME CHANGE
INPUT PASSWORD
PASSWORD CHANGE
NETWORK STANDBY
WEB CONTROL
LIVE MODE CUT IN
STATUS
INITIALIZE
page 38
*1
*1. See CD-ROM contents for more detailed information. 
						

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Settings
PICTURE menu
Depending on the projection environment, you can use 
these preset parameter settings to optimise image 
projection. Press I H to cycle through the options.
You can adjust the contrast of the projected image. 
Adjust the BRIGHTNESS in advance if necessary.
You can adjust the brightness of the projected image.You can adjust the color saturation of the projected 
image. (Available with signals of VIDEO/S-VIDEO/
YP
BPR only)
You can adjust the skin tone in the projected image. 
(Available with signals of VIDEO/S-VIDEO/YP
BPR only)
You can adjust the sharpness of the projected image and 
the adjustable range depends on the input signal.
You can adjust the white balance of the projected image. 
Press IH to cycle through the options.
 STANDARDBalanced white
 HIGHMore bluish
 LOWMore reddish
You can keep the projected image bright and vivid even 
in well-lit rooms where the ambient light sources cannot 
be controlled, such as when a door opens or when 
window coverings fail to block out sunlight.
 AUTO: Automatic adjustment
 ON: Active
 OFF: Deactive
PICTURE MODE
NATURALReproduces the original color of 
the image
STANDARDSetting for a general image
DYNAMICBright and sharp setting
BLACKBOARD
Setting for when projecting on a 
blackboard
See “BLACKBOARD” on 
page 36.
NOTE:
• It may take for a while until the selected mode is 
stabilised.
CONTRAST
BRIGHTNESS
MENURETURN
Remote control Control panel
 See “Navigating through the MENU” on page 27.
 See “Main menu and Sub-menu” on page 28.
Higher Lower
Brighter Darker
COLOR
TINT
SHARPNESS
COLOR TEMPERATURE
DAYLIGHT VIEW
NOTE:
• Do not cover the Ambient Luminance Sensor (ALS) of 
the projector. See “Ambient Luminance Sensor (ALS)” 
on page 12.
•AUTO is not available when INSTALLATION setting in 
OPTION menu is set to REAR/DESK or 
REAR/CEILING.
Darker Lighter
More 
greenish More 
reddish
More 
sharp Less 
sharp