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

							PICTURE menu
ENGLISH - 31
Settings
You can perform more detailed image adjustment 
manually.
JFor S-VIDEO/VIDEO signals
QTV-SYSTEM
When the video signal is changed, the setting 
switches automatically. You can switch the setting 
manually to match the video data. Press I H to 
cycle through the options.
QSTILL MODE
You can reduce the vertical flicker when projecting 
a still image.
 ON: Active
 OFF: Deactive
QNOISE REDUCTION
You can switch the automatic noise reduction 
system on/off. Press I H to select the required 
setting.
 ON: Automatic noise reduction
 OFF: No noise reduction
JFor RGB signals
You can adjust the white balance more properly in 
3 colors temperature by pressing I H. 
 WHITE BALANCE RED
 WHITE BALANCE GREEN
 WHITE BALANCE BLUE
DETAILED SETUP
AUTO
SECAM
NTSC
PAL-N
NTSC 4.43
PAL-M
PAL
NOTE:
•AUTO setting will select from NTSC/NTSC 4.43/PAL/
PAL60/PAL-M/PAL-N/SECAM.
NOTE:
•Set to OFF when projecting a moving image.
NOTE:
• Applying noise reduction may affect the image quality. 
						

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Settings
POSITION menu
If the projector is aligned non-perpendicularly to the 
screen, or if the projection screen has an angled surface, 
the keystone will be corrected automatically. Press I H 
to select the required setting.
 ON: Active
 OFF: Deactive
If you need to correct the angle of the projection even 
when the REALTIME KEYSTONE is activated, you can 
correct the keystone manually.
You can move the projected image for fine adjustment. 
Press I H to move horizontally and F G vertically. 
(Available with signals of VIDEO/S-VIDEO/RGB/YP
BPR 
only)If you have interference patterns of the projected image, 
which is sometimes referred to as moire or noise, you 
can minimize it by pressing I H to adjust the clock 
frequency. (Available with signals of RGB only)
If you require further adjustment for the same reason as 
the DOT CLOCK adjustment, you can fine adjust the 
timing of the clock. Press I H to adjust. (Available with 
signals of RGB/YP
BPR only)
You can switch the aspect ratio manually when needed. 
Press I H to cycle through the options.
 Selectable options vary according to a input signal.
Q4:3
The input signal will be projected in 4:3 ratio.
REALTIME KEYSTONE
KEYSTONE
ImageOperation
NOTE:
• You can correct the distortion ± 30 degrees from the 
plane. For a better quality image, installing the projector 
with a minimum of distortion is recommended.
• The distortion of the Main menu screen is not 
correctable.
• The result of the keystone correction will affect the 
aspect ratio and the size of the image.
POSITION
MENURETURN
Remote control Control panel
 See “Navigating through the MENU” on page 27.
 See “Main menu and Sub-menu” on page 28.
0 0
POSITION
H
V
DOT CLOCK
NOTE:
• If the projecting signal’s dot clock frequency is higher 
than 108 MHz, the adjustment may not make a 
difference.
•DOT CLOCK needs to be adjusted before adjust the 
CLOCK PHASE.
CLOCK PHASE
NOTE:
• If the projecting signal’s dot clock frequency is higher 
than 108 MHz, the adjustment may not make a 
difference. See “List of compatible signals” on page 44.
ASPECT
4:3 THROUGH
16:9
S4:3 AUTO 
						

							POSITION menu
ENGLISH - 33
Settings
Q16:9
The squeezed signal will be projected in 16:9 ratio.
QS4:3
The input signal will be sized down 75 % and 
projected. S4:3 mode is effective when projecting 
4:3 image on to a 16:9 screen.
QTHROUGH
The image will be projected without any size 
adjustment.
QAUTO
The signal which contains an identifying signal will 
be detected and automatically project the image in 
proper ratio.
If the projected image is degraded, you can activate 
FRAME LOCK for synchronisation. Press I H to select 
the required option. (Available with signals of RGB only)
 OFFDeactive
 ONActive
NOTE:
•WIDE MODE in OPTION menu should be ON when 
projecting WIDE signals.
• If you project an image with an unmatched aspect ratio, 
the image may distort or some portions may be 
cropped. Select an aspect ratio which preserves the 
intention of the image creator.
• The order of ASPECT types is defined not only by the 
input method but also by the input signals. See “List of 
compatible signals” on page 44.
• If you project a copyrighted image enlarged or distorted 
by using ASPECT function in commercial use in a 
public place, such as a restaurant or hotel, you might 
infringe on the copyright of the creator which is 
protected by copyright law.
FRAME LOCK 
						

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Settings
OPTION menu
When you change the input method, the guidance 
appears in the upper right corner of the screen. The 
following display methods are available. Press I H to 
cycle through the options.
You can switch the logo on/off that is displayed when 
starting up the projector. Press I H to select the 
required option. STARTUP LOGO will be displayed for 
30 seconds.
 ONActive
 USERDisplay the original text
 OFFDeactive
QEditing the original text
If you select USER, you can display a 2 lines of 
original text which contains up to 40 characters in 
each.1. Select USER and press the ENTER button.
2. Select the required line to enter or edit the original 
text, and press the ENTER button.
3. Use F G I H to specify the location of the 
required character and press the ENTER button.
 The selected character will be displayed in the box.
4. Repeat the step 3 until you finish the text to display 
in a line.
 To delete all the entered characters, move the cursor 
to ALL DELETE and press the ENTER button.
 To insert a character in the entered text line, move 
the cursor to the text box to select the required place, 
and press G and return to the character field.
 To delete a character, press the DEFAULT button or 
move the cursor to the required character then press 
the DEFAULT button.
5. Select OK and press the ENTER button to set the 
entered text in a box.
 Press G and edit the TEXT2 if you need to, and 
repeat the step 3 - 5.
 Select CANCEL or press the MENU/RETURN button 
to return to the previous menu without setting.
You can switch the function of the COMPUTER2 IN/
1OUT terminal.
 INPUT COMPUTER2 IN
 OUTPUT COMPUTER1 OUT
The projector will detect the signal from the 
COMPUTER1 IN or COMPUTER2 IN/1 OUT terminal if 
the signal is RGB or YP
BPR. You can turn off the 
automatic system and switch the settings manually.
 AUTOAutomatic adjustment
 RGBFor RGB signals
 YP
BPRFor YPBPR signals
When projecting WIDE signals, switch to ON to display 
the image in well adjusted size.
 OFFFor 4:3 signals
 ONFor WIDE signals
(16:9, 16:10 and 15:9)
INPUT GUIDE
OptionsFunction
DETAILED
Display the input method by graphic. The 
INPUT GUIDE will go out after 
10 seconds without any operation.
If you select any of the COMPUTER 
terminals which has no signal, the 
computer connection guidance will be 
displayed. See “Computer connection 
guidance” on page 46.
SIMPLE
Display the input method by text. The 
INPUT GUIDE will go out after 
5 seconds without any operation.
OFFTurn off the guidance.
STARTUP LOGO
MENURETURN
Remote control Control panel
 See “Navigating through the MENU” on page 27.
 See “Main menu and Sub-menu” on page 28.
OK CANCEL
ALL DELETE
SPACE
TEXT CHANGE
COMPUTER2 SELECT
RGB/YPBPR
NOTE:
• Available with 480i, 576i, 480p, 576p,1 125 (1 080)/60i, 
1 125 (1 080)/50i, only.
• When the input signal is not selected correctly with 
AUTO setting, select RGB or YP
BPR manually.
WIDE MODE 
						

							OPTION menu
ENGLISH - 35
Settings
You can adjust the power of the lamp to save electricity, 
prolong the lamp life and reduce the noise.
 STANDARDWhen higher luminance is required
 ECO-MODEWhen lower luminance is sufficient
You can check how long the lamp has been used.
You can set the off timer to switch off the power of the 
projector after a certain period of time automatically 
when no signal is detected. Press I H to select the 
required period from 15 to 60 minutes at intervals of 
5 minutes.
You can switch the projector start up status for when the 
electric power is supplied. Press I H to select the 
required option.
 OFFStarts in the same mode as last use.
 ONSkips the standby mode and starts 
the projection.
You can turn off the function of the control panel buttons 
on the projector body. Press I H to select the required 
option.
 VALIDValidate the control panel buttons
 INVALIDInvalidate the control panel buttons
The confirmation screen will be 
displayed.
You can turn off the automatic AUTO SETUP 
adjustment system.
 AUTOWhen the projector detect a 
COMPUTER signal, automatically 
set the setting of POSITION, DOT 
CLOCK and CLOCK PHASE in 
POSITION menu.
 BUTTONOnly when the AUTO SETUP button 
is pressed, automatically set the 
POSITION, DOT CLOCK and 
CLOCK PHASE in POSITION menu 
for COMPUTER signals. See 
“Remote control” on page 14.
You can turn off the auto signal detecting system.
 ONDetect the input signal from the 
terminals and project the image.
 OFFDeactive
When installing the projector, select the projection 
method according to the projector position. Press I H 
to cycle through the options. See “Projection method” on 
page 16.
If you use the projector at high elevation, the ALTITUDE 
setting need to be HIGH to set the fan speed high. Press 
I H to select the required option.
 LOWThe fan speed is low.
 HIGHThe fan speed is high.
LAMP POWER
NOTE:
• When no input signal is detected, the function is 
disabled.
•The ECO-MODE setting is recommended when higher 
luminance is not required such as in a small room.
LAMP RUNTIME
NOTE:
•LAMP RUNTIME is a relevant matter for lamp 
replacement timing. See “Replacing the Lamp unit” on 
page 41.
• When the lamp unit is replaced with the new unit, the 
setting need to be reset to “0”.
POWER OFF TIMER
DIRECT POWER ON
NOTE:
• If the projector is started from the projecting mode, the 
POWER button pressing procedure is skippable.
CONTROL PANEL
AUTO SETUP
NOTE:
•AUTO setting is recommended.
SIGNAL SEARCH
NOTE:
•SIGNAL SEARCH is not available when any input 
signal is projected.
INSTALLATION
FRONT/DESKSetting on a desk/floor and 
projecting from front
FRONT/CEILINGMounting in the ceiling and 
projecting from front
REAR/DESKSetting on a desk/floor and 
projecting from rear
REAR/CEILINGMounting in the ceiling and 
projecting from rear
ALTITUDE
NOTE:
• At 1 400 -2 700 m (4 593 - 8 858 ft) sea level, the 
setting must be HIGH.
• The loudness of fan noise depends on the ALTITUDE 
setting. 
						

							Settings
OPTION menu
ENGLISH - 36
If the input signal contains closed captions, you can turn 
on the feature and switch the channels.
CLOSED CAPTION
 OFFDeactive
 ONActive
MODE
 CC1 - 4Change the channels CC1 - 4
You can select a useful function from the list and assign 
to the FUNCTION button for shortcut. 
1. Press the ENTER button.
2. Press FG to select the required function.
3. Press the ENTER button.
 The dot on the left of the option is indicating the 
assigned function.
You can use the 7 different test patterns to adjust the 
focus of the image. See “Positioning the image” on 
page 22. 
1. Press the ENTER button to display the test 
pattern 1.
2. Press I H to select the required test pattern.
3. Press the MENU or RETURN button to return to 
the previous menu, or press repeatedly to escape 
the menu mode.
You can perform more detailed setting in various items.
JOSD DESIGN
You can change the background color of the menu. 
Press I H to select the required option.
JSXGA MODE
When an SXGA signal image is cropped, you can 
switch the setting between SXGA and the larger 
setting, SXGA+. Press I H to select the required 
option.
JBLACKBOARD
You can exclude the BLACKBOARD in menu 
items of PICTURE MODE in PICTURE menu. 
Press I H to select the required option.
 ONInclude the BLACKBOARD in menu 
items.
 OFFExclude the BLACKBOARD in menu 
items.
JBACK COLOR
You can choose a BLUE or BLACK screen for 
when the projector is idle. Press I H to select the 
required option.
JVOLUME
You can adjust the volume of the built-in monaural 
speaker and VARIABLE AUDIO OUT terminal.
 IDecrease
 HIncrease
JAUDIO BALANCE
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.
 IMore sound plays through the left 
side
 HMore sound plays through the right 
side
JINITIALIZE ALL
You can reset all of the customised settings to the 
factory defaults except WIRELESS and LAMP 
RUNTIME menu settings.
1. Press the ENTER button
2. Turn off the projector by pressing the POWER 
button.
3. Reset the projector by unplugging and plugging 
again.
4. The minimum required setting screen will be 
displayed.
 See “Minimum required setting screen” on page 11.
CLOSED CAPTION SETTING
NOTE:
• VCR with TBC (Time Base Corrector) function is 
recommended for video cassette tapes.
FUNCTION BUTTON
Option itemsRefer
AV MUTEpage 24
FREEZEpage 24
AUTO SETUPpage 23
INDEX-WINDOWpage 25
ASPECT
• Press the FUNCTION button to 
display the ASPECT in POSITION 
menu.
page 32
PICTURE MODE
• Press the FUNCTION to display the 
PICTURE MODE in PICTURE menu.
page 30
CLOSED CAPTION SETTINGpage 36
TEST PATTERN
DETAILED SETUP
TYPE1Semi transparent black
TYPE2Solid blue
TYPE3Semi transparent dark blue
NOTE:
• The security system is deactivated by default and when 
initialised. 
						

							ENGLISH - 37
Settings
SECURITY menu
JEntering the SECURITY menu
Every time when you apply to the SECURITY 
menu, you will be asked to perform the password 
operation.
When you apply to the SECURITY menu before you 
change the password to your original, perform to input 
the following factory default password operation.
 Press F H G I F H G I and the ENTER button.
QAfter you change the password
When you apply to the SECURITY menu after you 
change the password to your original in the 
PASSWORD CHANGE menu, input the original 
password operation.
You can activate the security system and the password 
operation will be asked to perform when projecting mode 
started. Unless you perform the correct password 
operation, all of the button controls will be disabled 
except the POWER button.
 OFFDeactive
 ONActive
You can change the password operation to your original.
1. Press a series of button operation up to 8 as a 
password by using F G I and H buttons.
2. Press the ENTER button.
3. Press the exact same series of button operation 
you entered in the NEW password box for 
confirmation.
 If a series of button operation is incorrect, you will be 
asked to perform again.
4. Press the ENTER button.
You can set your original text, such as company name or 
URL information, to display regularly at the bottom of the 
projected image while projecting.
 OFFDeactive
 ONActive
You can enter your original text up to 22 characters for 
TEXT DISPLAY.
1. Use F G I H to specify the location of the 
required character and press the ENTER button.
 The selected character will be displayed in the TEXT 
CHANGE box.
2. Repeat step 1 until finish your original text.
 To delete all the entered characters, move the cursor 
to ALL DELETE and press the ENTER button.
 To insert a character in the entered text line, move 
the cursor to the text box to select the required place, 
and press G and return to the character field.
 To delete a character, press the DEFAULT button or 
move the cursor to the required character then press 
the DEFAULT button.
3. Select OK and press the ENTER button to set the 
entered text.
 Select CANCEL or press the MENU/RETURN button 
to return to the previous menu without setting.
NOTE:
• The factory default password is valid until you change 
the password in PASSWORD CHANGE menu.
• The entered password operations will appear as 
asterisks in the box.
INPUT PASSWORD
NOTE:
• When you activated the security system, make sure to 
change the password to your original for safety.
• The security system is deactivated by default and when 
initialised.
MENURETURN
Remote control Control panel
 See “Navigating through the MENU” on page 27.
 See “Main menu and Sub-menu” on page 28.
PICTURE
POSITIONINPUT PASSWORD
PASSWORD CHANGE
TEXT DISPLAY
TEXT CHANGE
PASSWORD
LANGUAGE
OPTION
SECURITY
WIRELESS
OFF
OFF
SELECT
ENTER RETURN
PASSWORD CHANGE
NOTE:
• The entered password operations will appear as 
asterisks in the box.
• Change your password regularly.
• Do not use too simple password to guess.
TEXT DISPLAY
TEXT CHANGE
OK CANCEL
ALL DELETE
TEXT CHANGE
SPACE 
						

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Settings
WIRELESS menu
In WIRELESS menu, the following items are available.
 NETWORK
 NAME CHANGE
 INPUT PASSWORD
 PASSWORD CHANGE
 NETWORK STANDBY
 WEB CONTROL
 LIVE MODE CUT IN
 STATUS
 INITIALIZE
NOTE:
• The WIRELESS menu is available only with 
PT-LB80NTU/PT-LB75NTU.
• See the wireless information in the contents of the CD-
ROM which is provided with the projector.
• When INPUT PASSWORD in SECURITY menu is 
activated, performe the correct password operation to 
initialise the projector via network.
MENURETURN
Remote control Control panel
 See “Navigating through the MENU” on page 27.
 See “Main menu and Sub-menu” on page 28.
Items in WIRELESS menu 
						

							ENGLISH - 39
Maintenance
LAMP and TEMP Indicators
If a problem should occur with the projector, the LAMP and/or TEMP indicators 
will inform you. Manage the indicated problems as follow.
1. Confirm the status of all indicators and projector, and switch off the 
projector in proper way.
 See “Switching the projector on/off” on page 18.
2. Find out the cause of the problem by status of the LAMP and/or TEMP 
indicators.
3. Follow the instruction for each indication below and solve the problem.
4. Turn on the projector in the correct way and confirm the indicator is not 
indicating a problem any longer.
JLAMP indicator
JTEMP indicator
Managing the indicated problems
NOTE:
• If no problem is found or the problem remains, do not turn on the projector. Instead contact an Authorized Service Center.
IndicatorIlluminating red Flashing red
ProblemLAMP 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.
RemedySee “Replacing the Lamp 
unit” on page 41.Let the lamp unit cool 
down and turn on the 
projector after 
90 seconds.Switch off the projector 
and contact an Authorized 
Service Center.See “Replacing the Lamp 
unit” on page 41.
IndicatorIlluminating red while projecting and the alert will be displayed.
Flashing red and power is turned off
ProblemThe temperature inside and/or outside the projector is abnormally high.
CauseThe ventilation openings 
are covered.The room temperature is 
too high.The filter is excessively 
dirty and the ventilation is 
poor.The projector is located at 
1 400 - 2 700 m (4 593 - 
8858 ft).
Remedy
Remove the object(s) 
from the ventilation 
openings or clear around 
the projector.Reinstall the projector in 
temperature controlled 
place. See page 48.Clean the filter in the 
proper method. See 
page 40.Turn on the projector*1 
and set the ALTITUDE to 
HIGH. See page 35.
*1. The projector will perform 2 minutes with LOW setting at high elevation.
LAMP TEMP 
						

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Maintenance
Care and Replacement
JBefore cleaning the projector
 Switch off the projector and disconnect the power plug from the wall outlet.
 Unplug all the cables from the projector.
JCleaning the outer surface of the projector
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. 
Dry off the projector with dry cloth.
 Do not use petroleum benzine, thinner, any alcoholic solvent, kitchen detergents or chemical clothes. 
Failure to observe these may result in altered or damaged surface of the projector.
JCleaning the lens and front glass surface
Wipe off dirt and dust gently with a lint-free cloth.
 Make sure no dirt or dust remains on the surface of 
the lens or lens cover glass. It will be enlarged and 
projected onto a screen.
QRemoving the lens cover
1. Turn the lens cover clockwise.
2. Remove the lens cover from the projector.
QAttaching the lens cover
1. Attach the lens cover with aligning the latches in 
the holes.
2. Turn the lens cover counterclockwise.
JCleaning the air filter
If the air filter is excessively dirty, the internal temperature of the projector increases and may cause malfunction. 
Clean the air filter regularly every 100 hours of usage.
1. Turn the projector upside down and place it gently 
on a soft cloth.
2. press the tab and slightly slide up the air filter to 
remove.
3. Vacuum dirt and dust from the air filter.
 Do not wash the air filter.
4. Place and slightly slide in the air filter in the air 
intake port to attach.
 Make sure the air filter clicks into the place.
JReplacing the air filter
The air filter should be replaced when cleaning is ineffective and when replacing lamp unit. A replacement air 
filter is provided with a replacement lamp unit. Contact an Authorized Service Center for the optional air filter.
Cleaning the projector
NOTE:
• Handle the ring cover with special care. Dropping or giving a shock may cause damage.
• Do not attempt to modify the ring cover.
• The ring cover must be attached to the projector all the time except cleaning time.
NOTE:
• Do not use the projector without attaching the air filter.