Panasonic LCD Projector PT-LC50U Operating Instructions

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 Example of connection to a Personal Computer
System Configuration Example
Personal Computer
VGA Cable
PC Audio Cable  (not included)
• When using the PC Plug & Play feature, first, attach the AC cord
to the LCD Projector and turn the projector power on. Then, turn 
the PC power on.
• When LCD Projector power is turned off, shut down the personal computer as well.
• Refer to the “ Signals that can be Input ” for types of RGB signals
which can be input to the projector by connecting a personal
computer.
Note
RGB/YPBPR IN AUDIO IN 
						

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The Component signal (YPBPR signal) can be input and projected
with this LCD Projector. Please read the operating instructions 
regarding the output side of the component when connecting.
System Configuration Example
 Connecting D-sub15-BNC5 (female) Adaptor Cable
BNC-RCA Adaptor 
(not included)
Red
(Connect to P
R Input Signal)
Blue
(Connect to P
B Input Signal)
Green
(Connect to Y Input Signal) 
D-sub15-BNC5 
(female) Adaptor
Cable  (sold
separately) Audio Cable
DVD Player
BNC Cable  (not included)
RGB/YPBPR IN AUDIO IN
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• Because each Y, PB, and PR signal is input independently, the
Component signal allows for more faithful color reproduction.
• The Component signal output terminal indication will differ according to the output device (P
R, PB, Y/R-Y,  B-Y, Y/Cr,  Cb, Y,
etc.). Please read the operating instructions included with the 
output device.
• You need to change the input signal setting on this LCD Projector when inputting the Component signal. In this case,
please refer to “ Setting of the RGB/YP
BPR Input Signal
Selection ”.
• D-sub15-BNC5 (female) Adaptor Cable (sold separately) often have BNC connectors, however a DVD output device usually
has RCA jacks. In this case, you will need BNC-RCA adaptors
(not included).
Note
System Configuration Example
Notes on system configuration 
• Turn off the power supply of each system component beforeconnecting any of the components.
• Read the instruction manual for each system component before connecting it.
• If the cables necessary for connecting a component to the system are not included with the component or available as an
option, you may need to fashion a cable to suit the component
concerned.
• If there is a lot of jitter in the video signal input from the video source, the picture on the screen may flicker. In such cases, it
will be necessary to connect a TBC (time base corrector).
• It may not be possible to connect some types of personal computer. 
						

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There are two ways of installing this projector as shown next page .
This section explains the standard case of the floor-mounted front 
projection.
(The projection method can be set from the MENU screen. Refer to
the “ Changing the Projection Mode ”.)
• Refer to “ screen size and required distance ”.
• Select a room that can be darkened. 
Preparation
Setting-up Positions
Caution: When you set up the LCD Projector 
• Do not place it in humid or dusty places, or places where the air is sooty or full of cigarette smoke. If the lens, mirror, or other
optical components become dirty, the picture will blur or darken,
making viewing difficult.
• Do not expose to extreme heat or cold. Operating temperature: 0 ºC – 40 ºC (32 ºF – 104 ºF)
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Front projection 
Rear projection
Viewing a picture projected on the front of the screen from a floor. 
Viewing a picture projected through the back of the screen from a 
floor installation.
Translucent screenViewer
Viewer
Setting-up Positions 
						

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L
SW
SH
H1
L
The screen should be positioned so that it is not directly touched by 
sunlight or room light as this will wash out the colors of the picture
making it hard to see. When possible, close all blinds, curtains, etc.
and dim the lights. Also, the LCD Projector should be at a 90 ° angle
to the screen for the best picture results. To determine the distance
for the desired size, please refer to the “ LCD Projector /Screen
Relative Position Chart ”.
Setting-up Positions

screen size and required distance 
						

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LCD Projector /Screen Relative Position Chart
The picture can be adjusted to the desired size within the range of 
the zoom lens. (The values in the table are reference values.)
Setting-up Positions
Screen size
Setting-up dimensions which are not given in the above table 
can be calculated using the formulas below.
If the screen size is SD, then the following formula is first
used to obtain the screen width (SW). SW (m) = SD x 0.0254   5 x 4
The value for SW obtained above can then be used with the
following functions to calculate the projection distance. LW (m) = 1.98 x SW
LT  (m) = 2.57 x SW
For 16:9 aspect ratios, the following formula can be used to
calculate the screen width (SW) and the projection distance
for the wide lens position. SW (m) = SD x 0.0254   18.36 x 16
Throw distance (L)
Height (SH)
Width
(SW) Height
position (H1)
30 in
300 in 
40 in 
60 in
80 in
100 in 
150 in 
200 in
250 in
Screen type (4:3)
0.46 m 
0.61 m 
0.91 m 
1.22 m 
1.52 m 
2.29 m 
3.05 m 
3.81 m 
4.57 m
0.61 m 
0.81 m 
1.22 m 
1.63 m 
2.03 m 
3.05 m 
4.06 m 
5.08 m 
6.10 m
1.6 m 
2.4 m 
3.2 m 
4.0 m 
6.0 m 
8.1 m 
10.1 m 
12.1 m 6.5 cm
8.7 cm
13.1 cm 
17.4 cm 
21.8 cm 
32.7 cm 
43.5 cm 
54.4 cm 
65.3 cm
1.6 m
2.1 m
3.1 m 
4.2 m 
5.2 m 
7.8 m 
10.5 m 
13.1 m 
15.7 m
Wide (LW) Telephoto
(LT) 
						

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Disconnecting the power cord from a wall outlet while the 
cooling fan is operating, or projecting immediately after power
is turned on will shorten the lamp operating life.
POWER ButtonPOWER Button
Turning the power on and off
POWER Indicator 
STANDBY(RED)
ON(GREEN)
Note
• Insert Power Cord into LCD Projector AC socket andconnect to properly grounded wall outlet.
• When power is turned off, the cooling fan continues to operate (approximately 60 seconds) in order to cool the 
projector interior.
• This unit consumes approx. 15 W in OFF condition when plugged into an AC outlet.
(Supplied)
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Press POWER Button on the LCD Projector or remote
control unit.1
The power indicator will flash, then turn solid green and a 
picture will be projected onto the screen.
The LCD Projector cannot be turned on for 60 seconds 
after turning it off.
Turning on the power
Turning the power on and off
Note
2
Press POWER Button 
on the LCD Projector or remote
control unit. “Please press POWER button again to power 
off.” is displayed on the screen,  and then press POWER
Button  again.1
Turning off the power
3  Wait for the cooling fan to stop.
The power indicator changes to solid red, the cooling fan 
stops, and the projector goes into Stand-by mode. (After
about 1 minute)
The power indicator will illuminate flashing red.2
POWER Button POWER ButtonPOWER Indicator 
STANDBY(RED)
ON(GREEN) 
						

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Refer to the “LCD Projector/Screen Relative Position Chart ”.
After placing the LCD Projector to the throw distance which 
corresponds with the desired screen size, follow the steps
below to adjust the zoom and focus while viewing a projected
image.
• Adjustment procedure
1Turn the ZOOM Ring  to adjust the size of the picture.
• When facing the rear of the projector, turn the ring to the right for a smaller picture, or to the left for a larger picture.
2Turn the FOCUS Ring  to adjust the focus of the picture.
• Turn the ring to the right or left until the picture is at the optimum focus.
3Turn the ZOOM Ring again  to adjust the size of the
picture. 
• When you turn the FOCUS Ring, the size of the picture changes.
ZOOM Ring FOCUS Ring
Adjusting the Lens