Panasonic LCD Projector PT-LB51NTU PT-LB51U PT-LB51SU Operating Instructions

Preparation
About Your Projector
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Attaching a hand strap
You can attach a favorite strap on to the Remote control.
NOTE:
• Do not drop the Remote control.
• Avoid contact with liquids or moisture.
• Use manganese batteries or alkaline batteries with the Remote control.
• Do not attempt to modify or disassemble the Remote control. Contact an Authorised Service Center for repairs.
• Do not keep pressing the Remote control buttons as this may shorten battery life.
• See “Remote control...

Preparation
About Your Projector
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JTop and front view
Projector body
NOTE:
• Do not cover the ventilation openings or place anything within 15 cm (6) of them as this may cause damage or injury.
MENU button (page 27)
Display the MAIN MENU.  POWER button (page 20)
POWER indicator (page 20)
Switch between stand-by mode 
and projection mode.
Navigation buttons (page 27)
Navigate through the menus with 
FGIH, and activate the menu 
item with ENTER.FUNCTION button (page 34) INPUT SELECT button...

Preparation
About Your Projector
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JBack and bottom view
NOTE:
• Do not cover the ventilation openings or place anything within 15 cm (6) of them as this may cause damage or injury.
• When a cable is connected to the VARIABLE AUDIO OUT, the built-in speaker will be disabled.
AC IN
Connect the Power cord 
to supply electronic power 
to the projector. (page 20) Font adjustable legs (L/R)
Adjust the projection angle. 
(page 17)
COMPUTER1 IN
Connect an RGB signal 
cable from a computer.S-VIDEO IN...

Getting Started
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Setting up
You can adjust the projection size with 1.2x zoom lens. Calculate and define the throw distance as follows.
PT-LB51NTU/PT-LB51U
PT-LB51SU
* All measurements above are approximate and may differ slightly from the actual measurements.
Screen size and throw distance
Projection size (4 : 3)Throw distance (L)Height
position
(H1)
Screen 
diagonal (SD)Screen height 
(SH)Screen width 
(SW)Minimum 
distance (LW)Maximum 
distance (LT)
33 (0.84 m) 0.50 m (17) 0.67 m (22) 1.1...

Getting Started
Setting up
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JCalculation methods for screen dimensions
You can calculate more detailed screen dimension from the screen diagonal. (Unit: m)
PT-LB51NTU/PT-LB51U
PT-LB51SU
* The results above are approximate and may differ slightly from the actual measurements. Projection size(4:3) Projection size(16:9)
SH = SD X 0.0152 SH = SD X 0.0125
SW = SD X 0.0203 SW = SD X 0.0221
LW = 0.0307 X SD - 0.031 LW = 0.0335 X SD - 0.0315
LT = 0.0371 X SD - 0.029 LT = 0.0405 X SD - 0.0365...

Getting Started
Setting up
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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 35..
Projection method
JSetting on a desk/floor and 
projecting from front JSetting on a desk/floor and 
projecting from rear
INSTALLATION: FRONT/DESKINSTALLATION: REAR/DESK
JMounting in the ceiling and 
projecting from frontJMounting in the ceiling and 
projecting from rear
INSTALLATION: FRONT/CEILINGINSTALLATION:...

Getting Started
Setting up
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You can adjust the projection angle in the vertical direction by pressing the Font leg adjuster buttons.
See “Positioning the image” on page 22.
Front adjustable legs and throwing angle
NOTE:
• Heated air comes out of the Air exhaust port. Be careful of this when adjusting the Font adjustable legs.
• If keystone distortion occurs, see “KEYSTONE” on page 32. 

Getting Started
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Connections
 Read and follow the operating and connecting instructions of each peripheral device.
 The peripheral devices must be turned off.
 Use cables that match each peripheral device to be connected.
 If the input signal is affected by signal jitter, the projected image may have poor image quality and timebase 
correction is effective.
 Confirm the type of video signals. See “List of compatible signals” on page 44.
 Only one audio system circuit is available for each of...

Getting Started
Connections
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JConnecting with VIDEO IN/S-VIDEO IN
JConnecting with COMPONENT IN
Connecting with AV equipment
NOTE:
• If you connect the BNC cables, use with a commercial BNC-RCA adaptor.
DVD player
Audio system To S-VIDEO output
Video player To video output or 
audio output
DVD player
(with component video 
connectors) D-sub15-pin (male) - BNCx5 (male) adapter cable
Red (connect to P
R signal connector)
Blue (connect to P
B signal connector)
Green (connect to Y signal...

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Basic Operation
Switching the projector on/off
JConnecting
1. Make sure the shape of the power cord plug and the AC IN connector on the back 
of the projector match, then push the plug all the way in.
2. Connect the Power cord to a wall outlet.
JDisconnecting
1. Check that the POWER indicator of the POWER button is lit red, and then unplug the Power cord from the 
wall outlet.
2. Hold the plug and unplug the Power cord from the AC IN connector on the back of the projector.
JDirect power off...