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

							Read this first
Preparation
ENGLISH - 11
Read this first
When you start the projection for the first time or after the projector is initialised (Æpage 42), the LANGUAGE 
menu and the  INITIAL SETTING  menu will be displayed.
Set those menus according to the usage conditions and environment.
The setting can be changed by navigating through the ON SCREEN MENU.
LANGUAGE 
J
Select the required language setting.
 (Æpage 35)
Press ▲▼◄►buttons of the remote 1 ) 
control or control panel on the projector 
to highlight the required language.
PLEASE SELECT LANGUAGE
SELECT
ENTER
Press the ENTER button to proceed to 
2  ) 
the next INITIAL SETTING menu.
 
JINITIAL SETTING
Select the required setting of 
INSTALLATION and 
HIGH ALTITUDE MODE.
Press ▲▼buttons to select the required 1  ) 
menu.
Press ◄►buttons to change the settings 2 ) 
of INSTALLATION or HIGH ALTITUDE 
MODE.
RETURN
SELECT ENTER
INSTALLATION
INITIAL SETTING
FRONT/DESK
HIGH ALTITUDE MOD E
SWITCH TO HIGH ALTITUDE MODE “ON” IF OVER 1400m(4593Ft).
OFF
INSTALLATION  
z(Æpage 1 6, 39)
FRONT/ 
DESK Setting on a desk/floor and 
 
projecting from front
FRONT/ 
CEILING
Mounting in the ceiling with a ceiling 
mount bracket (sold separately) and 
projecting from front
REAR/  DESK Setting on a desk/floor and 
 
projecting from rear (Translucent 
screen is required)
REAR/ 
CEILING
Mounting in the ceiling with a ceiling 
mount bracket (sold separately) and 
projecting from rear (Translucent 
screen is required)
HIGH ALTITUDE MODE ( 
zÆpage 8, 39)
OFF For use in normal environment
ON For use at high altitude (above 
1 400 m (4 593 ft))
Press the ENTER button to finish.
3  ) 
Remarks
To return to the 
 
zLANGUAGE menu, press the  
RETURN button in the INITIAL SETTING  menu. 
						

							About Your Projector
Preparation
12 - ENGLISH
About Your Projector
Projector body 
Top and front view 
J
Zoom ring
Adjust the projection size.
(
Æpage 23)
Adjuster  
button (
Æpage 16)
Remote  
control signal receptor
Ambient  
Luminance Sensor (ALS)
TEMP indicator Indicates the temperature status.
(
Æpage 46)
LAMP indicator Indicates the lamp unit status.
(
Æpage 46)
POWER indicator Indicates the power supply status.
(
Æpage 20)
POWER LOCK indicator Indicates the locking status of the POWER button.
(
Æpage 20) Focus ring
Adjust the focus.
(
Æpage 23)
Air intake port
Lens cover
Adjuster button (
Æpage 16)
Zoom-Focus ring cover
Control panel
NoteDo not use other than a provided power cord.
 
z
Do not cover the ventilation openings of the air intake port or air outl\
et port. 
z
After adjusting the zoom and focus, be sure to close the Zoom-Focus ring\
 cover to protect from dust. 
z
Do not apply extreme force on the Zoom-Focus ring cover. 
z
 
 
JControl panel
RELEASE button
Press to release the 
locked POWER button 
when turning on the 
projector.
(
Æpage 21)
POWER button Switch between standby mode 
and projection mode.
(
Æpage 21)
INPUT SELECT button Switch to cycle through the input 
method.
(
Æpage 24) FUNCTION button
Assign a useful function for a 
shortcut.
(
Æpage 26, 41)
FUNCTIONMENURETURNINPUT  SELECTRELEASE
Cover the zoom and focus rings to protect from dust.
▲▼◄►/MENU/  
ENTER/RETURN (
Æpage 27)
Lens cover Air intake port 
						

							About Your Projector
Preparation
ENGLISH - 13
 
Back and bottom view 
J
Lamp unit compartment
(
Æpage 49)
Terminals
AC IN Connect the power cord 
to supply electronic 
power to the projector.
(
Æpage 19) Security lock
Attach the commercial shackle lock, manufactured 
by Kensington, to protect your projector. Compatible 
with the Kensington MicroSaver Security System.
Air filter compartment (
Æpage 47)
Front leg adjusters and leg 
adjuster buttons Adjust the projection angle.
(
Æpage 16, 23) Remote control 
signal receptor
Burglar hook portAttach a commercial 
burglar prevention 
cable. Air intake portSpeaker
Air outlet port
Heated air comes out 
of this opening.
Front leg adjusters and 
leg adjuster buttons Adjust the projection 
angle.
(Æpage 16, 23)
Terminals 
J
VARIABLE AUDIO OUT
Connect an audio cable for 
outputting audio signals to 
the connected equipment.
(
Æpage 17, 18)
COMPUTER1 IN
COMPUTER2 IN
Connect a computer or 
YP
BPR signal cable.
(
Æpage 18) S-VIDEO/VIDEO IN
Connect a S-VIDEO signal cable or 
an RCA composite video cable.
(
Æpage 17)
AUDIO IN  Connect audio cables for inputting 
audio signal corresponding to 
VIDEO IN, S-VIDEO IN.
(
Æpage 17)
COMPUTER AUDIO INConnect audio cables 
for inputting audio sig -
nals corresponding to 
COMPUTER1 IN and/or 
COMPUTER2 IN.
(
Æpage 18)
LAN
Connect a network 
cable.
  (PT-LB90NTU only)
(Æpage 54)
SERIAL Connect a computer 
to control the projector 
operation.
(
Æpage 18, 53)
Note
Do not place your hands or other objects close to the air outlet port as\
 this may cause damage or injury.
 
z
Heated air comes out of the air outlet port. Do not place your hands or \
face, or objects which cannot withstand  
z
heat close to this port. 
						

							About Your Projector
Preparation
14 - ENGLISH
Remote control
 
JTop view
Remote control 
signal emitters
Front view 
J
POWER button 
Switch between stand-by 
mode and projection mode.
(
Æpage 21, 22)
Switch the required input signal button to 
select.
(The NETWORK button is only for PT-LB90NTU)
(See CD-ROM contents.)
(Æpage 24)
Display the main menu.
(
Æpage 28)
Navigate through the menus with the 
▲▼◄►buttons, and activate the menu 
item with ENTER button.
(
Æpage 27)
Capture the projected image as a frozen 
picture.
(
Æpage 24)
Reset some of the settings to the 
factory default settings.
(
Æpage 25)
The MULTI-LIVE  button is only for 
PT-LB90NTU.
(See CD-ROM contents.)
Control to change the scale by 
means of digital zoom.
(
Æpage 26) Detect the input signal and the 
setting of SHIFT, DOT CLOCK 
and CLOCK PHASE in POSITION 
menu will be adjusted automati
-
cally for COMPUTER signals.
(
Æpage 25)
The PAGE buttons are only for 
PT-LB90NTU.
(See CD-ROM contents.)
Turn off the projection temporarily.
(
Æpage 24)
Display the frozen image while 
the display of subsequent images 
continues.
(
Æpage 25)
The COMPUTER SEARCH  button 
is only for PT-LB90NTU. 
(See CD-ROM contents.)
Assign a useful function for a 
shortcut.
(
Æpage 26, 41)
Control to adjust the volume of the 
speaker.
(
Æpage 25)
Note Do not drop the remote control.
 
z
Avoid contact with liquids or moisture. 
z
Do not attempt to modify or disassemble the remote control. 
z
Do not mix old and new batteries or batteries of different types.   
z
Use only manganese batteries or alkaline batteries with the remote contr\
ol.
Do not swing the strapped remote control.
 
z
Remarks
 
zDo not let strong light shine onto the signal receptor. 
The remote control may malfunction under strong light such as fluorescent.
 
zYou can operate the projector with the remote control within the remote r\
ange of 15 m (49'2"), approximately   
±30 ° vertically and horizontally.
If there are any obstacles between the remote control emitter and the re\
mote control signal receptor, the remote  
z
control may not operate correctly.
The operating range may differ due to the screen material, and this function may not be effective with a translu-
cent screen.
Battery compartment
Press the tab and lift up the cover. Insert the batteries according to the 
polarity diagram indicated inside.
Attaching a hand strapYou can attach a favourite 
strap onto the remote control. 
						

							Setting up
Getting Started
ENGLISH - 15
Setting up
Screen size and throw distance
You can adjust the projection size with 1.2× zoom lens. Calculate and define the throw distance as follows.
SD
SW
SHL (LW/LT)SH
88,6 mm
L (LW/LT)SW
Projected imageScreen Screen
(All measurements below are approximate and may differ slightly from the actual measurements.)
Projection sizeFor 4:3 aspect ratio For 16:9 aspect ratio
Screen diagonal (SD) Minimum distance 
 
(LW) Maximum distance 
 
(LT) Minimum distance 
 
(LW) Maximum distance 
 
(LT)
0.84 m  (33") — 1.1 m  (3' 7") — 1.2 m  (3' 11")
1.02 m  (40") 1.1 m (3' 7")  1.4 m  (4' 7") 1.3 m (4' 3")  1.5 m  (4' 11")
1.27 m  (50") 1.4 m (4' 7")  1.7 m  (5' 6") 1.6 m (5' 3")  1.9 m  (6' 2")
1.52 m  (60") 1.7 m (5' 6")  2.1 m  (6' 10") 1.9 m (6' 2")  2.3 m  (7' 6")
1.78 m  (70") 2.0 m (6' 6")  2.4 m  (7' 10") 2.2 m (7' 2")  2.6 m  (8' 6")
2.03 m  (80") 2.3 m (7' 6")  2.8 m  (9' 2") 2.5 m (8' 2")  3.0 m  (9' 10")
2.29 m  (90") 2.6 m (8' 6")  3.1 m  (10' 2") 2.8 m (9' 2")  3.4 m  (11' 1")
2.54 m  (100") 2.9 m (9' 6")  3.5 m  (11' 5") 3.2 m (10' 6")  3.8 m  (12' 5")
3.05 m  (120") 3.5 m (11' 5")  4.2 m  (13' 9") 3.8 m (12' 5")  4.6 m  (15' 1")
3.81 m  (150") 4.3 m (14' 1")  5.2 m  (17' 0") 4.7 m (15' 5")  5.7 m  (18' 8")
5.08 m  (200") 5.8 m (19' 0")  7.0 m  (22' 11") 6.3 m (20' 8")  7.6 m  (24' 11")
6.35 m  (250") 7.3 m (23' 11")  8.7 m  (28' 6") 7.9 m (25' 11")  9.5 m  (31' 2")
7.62 m  (300") 8.7 m (28' 6") 10.5 m (34' 5") 9.5 m (31' 2") 11.4 m (37' 4")
You can calculate more detailed screen dimensions from the screen diagona\
l.  
The results below are approximate and may differ slightly from the actual measurements.
If the projection size is SD,
For 4:3 aspect ratio For 16:9 aspect ratio
Screen height (SH) = SD (m) × 0.0152 = SD (m) × 0.0125
Screen width (SW) = SD (m) × 0.0203 = SD (m) × 0.0221
Minimum distance (LW) = 0.0292 × SD (m) 
- 0.036= 0.0318 × SD (m) - 0.022
Maximum distance (LT) = 0.0351 × SD (m) 
- 0.044= 0.0383 × SD (m) - 0.046
Note
 
zFor the best quality of the projection image, install a screen where sun\
light or room light does not shine directly 
onto the screen. Close window shades or curtains to block the light and \
turn off the lamps.
Do not use the projector at a raised or a horizontally tilted position. \
Doing so may cause malfunction of the 
 
z
projector. 
You can tilt the projector body approximately ±30 ° vertically and \
±10 °   
horizontally. 
Overtilting may result in shortening the component’s life.
Do not cover the air outlet port and air intake ports or place anything \
within   
 
z
50 cm (20") of them as this may cause damage or injury.
+30 °
-30 ° 
						

							Setting up
Getting Started
16 - ENGLISH
Projection method
You can use the projector with any of the following 4 projection methods.\
 To set the desired method in the projector, 
see “INSTALLATION” on page 39.
Setting on a desk/floor and   
J
projecting from front Mounting in the ceiling and 
 
 
J
projecting from front
Menu
Method
INSTALLATION FRONT/DESKMenuMethod
INSTALLATION FRONT/CEILING
Setting on a desk/floor and    
J
projecting from rear 
(Using translucent screen) Mounting in the ceiling and 
 
 
J
projecting from rear 
(Using translucent screen)
Menu
Method
INSTALLATION REAR/DESKMenuMethod
INSTALLATION REAR/CEILING
Remarks When mounting the projector in the ceiling, the optional ceiling mount b\
racket (ET-PKB80) is required.
 
z
Front leg adjusters and throwing angle
You can adjust the projection angle in the vertical direction by pressing\
 the leg adjuster buttons.  (Æpage 23) 
Note
Heated air comes out of the air exhaust port. Do not touch the air exhau\
st port directly.
 
z
If keystone distortion occurs, see “KEYSTONE” on  
zpage 3 2. 
						

							Connections
Getting Started
ENGLISH - 17
Connections
Before connecting to the projector
Read and follow the operating instructions of each peripheral device. 
z
The peripheral devices must be turned off. 
z
One RGB cable is provided with the projector. If necessary, prepare commercial connecting cables that match  
z
with the projector and each peripheral device terminal.
If the input signal is affected by signal jitter, the projected image may have poor image quality and timebase 
 
z
correction is effective.
Confirm the type of video signals, see “List of compatible signals”.
 
z (Æpage 52 )
Connecting example: AV equipment
or To S-VIDEO 
output
To video output  or audio output
DVD player
Video player
Audio system
To audio input
Remarks When you connect more than one AV equipment, switch the audio connection manually.
 
z
Various connecting cables are not provided with the projector. If necessary, prepare commercial connecting  
z
cables that match with the projector and each peripheral device terminal\
. 
						

							Connections
Getting Started
18 - ENGLISH
Connecting example: Computers
ComputerAudio system
Computer
Computer
Computer  
(Controlling a projector)
Note
When connecting the RGB signal cable, be sure to securely tighten the fixing screws on the D-Sub (15-pin) 
 
z
wall outlet.
Remarks For the network connection between the projector and computers, see the \
CD-ROM contents provided . 
 
z
(PT-LB90NTU only)
When you connect more than one computer, switch the computer connection manually.
 
z
One RGB cable is provided with the projector. If necessary, prepare commercial connecting cables that match  
z
with the projector and each peripheral device terminals. 
						

							Switching the projector on/off
Basic Operation
ENGLISH - 19
Switching the projector on/off
Power cord
Be sure to fix the power cord to the projector with the provided “Power cord secure lock” to prevent the 
power cord from coming off.
Connect the provided power cord securely.
For details, see “Precautions with regard to safety”. (
Æpages 6 - 10)
 
JConnecting
1 
)  Make sure the shape of the power plug 
and the AC IN terminal on the back 
of the projector match, then push the 
plug all the way in.
2 ) Align the side of the power cord secure 
lock with the side guide rail of the AC IN 
terminal of the projector and slide it in.
Rail guide
3 )  Place the latch to the latch catcher and 
press until it clicks.
Latch
4 )  Connect the power cord to a wall out -
let.
 
JDisconnecting
1 
)  Unplug the power cord from the wall 
outlet.
2  )  Depress the latch and slide the cover 
off.
Latch
3 )  Slide the power cord secure lock up 
along the side guide rail and remove.
Rail guide
4 )  Hold the plug and unplug the power 
cord from the AC IN terminal on the 
back of the projector.
Direct power off function 
J
You can switch off the electric power supply any time by unplugging the p\
ower plug from the wall outlet 
or by switching off the main power. The internal lamp cooling fan keeps operating by the internal power 
supply, and stops automatically when cooled enough.
NoteDo not put the projector into the carrying bag with the 
 
zPOWER indicator lit.
Direct power on function 
J
If INITIAL START UP in the PROJECTOR SETUP menu is set to ON, connect the power cord to a wall 
outlet and the projection will start even when the control panel is disa\
bled or the POWER button is 
locked. (
Æpage 39) 
						

							Switching the projector on/off
Basic Operation
20 - ENGLISH
POWER and POWER LOCK indicators
The POWER indicator informs you of the status of the power and the POWER LOCK indicator shows the status 
of the RELEASE button. When the TEMP indicators are flashing, the  POWER and POWER LOCK indicators will 
light red and you cannot switch the projector on.
POWER indicatorPOWER LOCK indicator
 
JPOWER LOCK indicator status
Indicator status
Status
No illumination or flashing No power is supplied.
 
z
The  
zRELEASE button is pressed and the  POWER button is unlocked while 
the power is on.
Red Lit
The POWER button is locked.
Flashing Pressing the locked  POWER button.
 
JPOWER indicator status
Indicator status
Status
No illumination or flashing No power is supplied and the internal cooling fan is not operating.
Red Lit
The power is turned off (when STANDBY MODE is set to 
ECO). 
If the  POWER button is pressed, projection starts.
Flashing The power is turned off (when STANDBY MODE is set to  NORMAL).
Green Flashing
The power is on and preparing for projection.
Lit The projector is projecting.
Orange Lit
No power supply and the internal fan is cooling the lamp by internal pow\
er 
supply.
Flashing The power is switched on again while cooling the lamp and recovering to \
the 
projection mode. Recovery may take a while.
Remarks When the power is turned off, the internal fan is cooling the lamp by internal power supply.
 
z
The power is switched on again while cooling the lamp and recovering to \
the projection mode. Recovery may  
z
take a while.
Even while the power is turned off (when 
 
zSTANDBY MODE is set to  ECO, the POWER indicator is lit in red), 
power of about 0.9 W is consumed.