Panasonic LCD Projector PT-L785U Operating Instructions

							sRGB is an international color
reproduction standard (IEC61966-2-
1) established by the International
Electrotechnical Commission (IEC).
If you would like the colors in sRGB-
compatible pictures to be
reproduced more faithfully, make
the following settings.
#Press the F 
or G 
button to
select “PICTURE MODE”, and
then press theI 
or H 
button
to select “NATURAL”.
$Press the F 
or G 
button to
select “COLOR TEMP.”, and
then press theI 
or H 
button
to select “STANDARD”.
%Press the STD (standard)
button on the remote control
unit.
&Press the F or Gbutton to
select “LAMP POWER” in the
“OPTION” menu, and then
press the I or Hbutton to
select “HIGH”.
ENGLISH-41
Adjustments and settingsNOTE:
BsRGB is only enabled when
RGB signals are being input.
TV-SYSTEM
(S-VIDEO/VIDEO only)
AUTO
NTSC
NTSC4.43
PAL
PAL-M
PAL-N
SECAM
Projecting sRGB-
compatible pictures
This should normally be set to
“AUTO”. If the signal is of such poor
quality that the correct format
cannot be automatically
distinguished, change the setting
manually to the required TV system.
NOTE:
BWhen set to “AUTO”, the
projector automatically
distinguishes between
NTSC/NTSC 4.43/PAL/PAL60/
PAL-M/PAL-N/SECAM signals. 
						

							42-ENGLISH
POSITION
Moves the picture position.
Press the Ior Hbutton to move the
picture horizontally.
Press the For Gbutton to move the
picture vertically.
Adjusting the position
When an RGB signal is being
input, press the AUTO SETUP
button first to initiate automatic
positioning. If the optimum setting
is not obtained when “AUTO
SETUP” is carried out, adjust by
the following procedure.
POSITIONH:
V:128
32
Press the For Gbutton on the
projector or remote control unit to
select an item, and then press the I
or Hbutton to change the setting.
For the value adjusting items, press the
ENTER button to display the
adjustment screen, and then press the
Ior Hbutton to make the adjustment.
Some items can be adjusted
pressing the For Gbutton.
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When an S-VIDEO/VIDEO signal is
being input
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When a YPBPRsignal is being input
“POSITION”, “DOT CLOCK” and
“CLOCK PHASE” are not displayed
when a DVI signal is being input. 
						

							ENGLISH-43
Adjustments and settings
NOTE:
BIf signals with a dot clock
frequency of 108 MHz or
higher are being input,
interference may not be
completely eliminated when
the “DOT CLOCK” and
“CLOCK PHASE” adjustments
are carried out.
DOT CLOCK
(RGB only)
Periodic striped pattern interference
(noise) may occur when a striped
pattern such as the one below is
projected. If this happens, press the
Ior Hbutton to adjust so that any
such noise is minimised.
CLOCK PHASE
(RGB/YPBPRonly)
Adjust the “DOT CLOCK” setting
first before carrying out this
adjustment. Press the Ior H
button to adjust so that the noise
level is least noticeable.
KEYSTONE
If the projected image contains
keystone distortion, follow the
procedures in the table to correct
any keystone distortion.
KEYSTONEH:
V:0
0
Picture
conditionOperation
Press the F
button.
Press the G
button.
Press the I
button.
Press the H
button.
NOTE:
B
The greater the correction of
keystone distortion amount, the
more the picture quality will
deteriorate, and the harder it will
become to achieve a good level of
focus. To obtain the best picture
quality, set up the projector and
screen in such a way that the
amount of keystone correction
required is as minimal as possible.
BThe picture size will also change
when correction of keystone
distortion is carried out.
BThe range of keystone correction
varies depending on the type of
signal being input (including when
no signal is being input). If you
make an adjustment that is outside
the allowable range, the setting will
not be changed. In addition, if the
input signal is changed after
keystone correction has been
carried out, the correction setting
may be cancelled. This indicates 
						

							44-ENGLISH
S4:3
The size of the input signal is
compressed to 75% and projected.
(This is useful for projecting a
picture with a 4:3 aspect ratio onto a
16:9 screen.)
AUTO
(S-VIDEO only)
When an S1 video signal is being
input, the aspect ratio is changed
automatically to project a 16:9
picture.
4:3
The input signal is projected without
change.
ASPECT
(S-VIDEO/VIDEO/480i, 576i, 480p
and 576p YP
BPRonly)
AUTO
4:3
16:9
S4:3
When a
horizontally
squeezed
signal is being
input.
When a 4:3
signal is being
input.
[
[
When using the 16:9 screen
that the current correction setting
exceeds the allowable range for
the new input signal.
BIf you correct both vertical and
horizontal keystone distortion at
the same time, the allowable range
of keystone correction becomes
smaller. If you make an adjustment
that is outside the allowable range,
the setting will not be changed.
BThe ratio of length and width of an
image may become incorrect
depending on the amount of the
keystone correction.
OSD POSITION
Press the Ior Hbutton to move
the OSD position.16:9
The picture is compressed to a ratio
of 16:9 and projected. 
						

							ENGLISH-45
Adjustments and settings
RESIZING
This should normally be set to “ON”.
(This setting is only for signals
which have lower resolutions than
the LCD panels. Refer to page 70
for details.)
ON
The pixel resolution of the input
signal is converted to the same
resolution as the LCD panels before
being projected. For signals with
lower resolutions, gaps in the pixels
are automatically interpolated into
the picture before it is projected.
This may sometimes cause
problems with the quality of the
picture.
OFF
The input signal is projected at its
original resolution, with no pixel
conversion. The projected picture
will be smaller than normal, so
adjust the zoom setting or move the
projector forwards or backwards to
adjust the picture size if necessary.
If set to “OFF”, some features, such
as “D.ZOOM” (digital zoom) or
“KEYSTONE” will not function.
AUTO SETUP
This item functions in the same way
as the AUTO SETUP button on the
remote control unit and the projector
control panel. (page 28)
FRAME LOCK
If the picture’s condition is bad while
a RGB moving picture is projected,
set “FRAME LOCK” to “ON”. Refer
to page 70 for compatible RGB
signals.
NOTE:
BIf a selected mode does not
match the aspect ratio of the
input signal, it may affect the
quality of viewing of the original
picture. Keep this in mind when
selecting the aspect ratio.
B
If using this projector in places
such as cafes or hotels to
display programs for a
commercial purpose or for public
presentation, note that if the
aspect ratio (16:9) selection
function is used to change the
aspect ratio of the screen
picture, you may be infringing
the rights of the original copyright
owner for that program under
copyright protection laws.
BIf a normal (4:3) picture which
was not originally intended for
wide-screen viewing is
projected onto a wide screen,
distortion may occur around
the edges of the picture, or
part of the picture may not be
visible. Such programs should
be viewed in 4:3 mode to give
proper consideration to the
aims and intentions of the
original programme’s creator. S1 video signals
BS1 video signals are a type of
video signal with an aspect ratio
of 16:9 which include a detector
signal. This detector signal is
output by some sources such as
wide-vision video decks. 
BWhen “ASPECT” is set to “AUTO”,
the projector recognizes the
detector signal and automatically
switches the aspect ratio to 16:9. 
						

							46-ENGLISH
Audio adjustment
Press the For Gbutton on the
projector or remote control unit to
select an item.VOLUME
Press the Ior Hbutton to adjust
the volume of the sound output. 
MUTE
Set to “ON” pressing the Ior H
button to turn off the volume of the
sound output. To cancel muting, set
to “OFF”. AUDIOVOLUME
MUTE
OFFON 20
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ADJUST:[{][}]ENTER:[ENTER]
ESC:[MENU]
Changing the display language
Press the F, G, Iand Hbuttons
on the projector or remote control
unit to select a language, then press
the ENTER button to accept the
setting.
LANGUAGE
SELECT:[^][@][{][}]
SELECT:[{][}]ESC:[MENU]
ENTER:[ENTER]
ENGLISH
DEUTSCH
FRANÇAISESPAÑOL
ITALIANO 
						

							ENGLISH-47
Adjustments and settings
Option settings
Press the For Gbutton on the
projector or remote control unit to
select an item, then press the Ior
Hbutton to change the setting.
OSD
ON
The signal name is displayed in the
top-right corner of the screen when
the input signal is changed.
OFF
Use this setting when you do not
want the signal name to be
displayed.
AUTO SEARCH
ON
The input signal will be detected and
selected automatically when the input
select (RGB, VIDEO) buttons are
pressed for a few seconds. (page 14)
OFF
“AUTO SEARCH” is disabled.
AUTO SIGNAL
This should normally be set to “ON”.
ON
“AUTO SETUP” will be carried out
automatically when the input signal
is changed.
OFF
“AUTO SETUP” will not function
when the input signal is changed.
RGB2 SELECT
This setting is used to select the
function of the RGB2 IN/RGB OUT
connector. 
When set to “OUTPUT”, the
selected input signal (RGB1 or
RGB3) will be output.
RGB/YPBPR
This setting is valid when 480i, 576i,
480p, 576p, 1 080/60i, 1 080/50i
and 720/60p signals are being input.
Select the setting in accordance
with the input signal.
“RGB/YP
BPR” is displayed when the
RGB1 IN, RGB2 IN or RGB3 IN
connector has a signal being input.
10 H
OPTIONPREVIOUS PAGE ^
FRONT/REAR
DESK/CEILING
FAN CONTROL
LAMP POWER
LAMP RUN TIME
FUNC1
CONTROL KEY
SET ID
AUTO POWER OFF   FRONT
DESK
STANDARD
LOW
MUTE
OFFREAR
CEILING
HIGH
HIGH
KEYSTONE
ON
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NOTE:
BThe setting for “TV-SYSTEM”
will also be displayed when an
S-VIDEO/
VIDEO signal is being
input.
OPTIONOSD
AUTO SEARCH
AUTO SIGNAL
RGB2 SELECT
RGB/YP
BPRVGA60/480p
BACK COLOR
CINEMA REALITY
NEXT PAGE @OFF
OFF
OFF
INPUT
RGB
VGA60
BLUE
OFFON
ON
ON
OUTPUT
YPBPR480p
BLACK
ON
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B“AUTO SEARCH” will not
function when the input signal is
being projected. 
						

							48-ENGLISH
VGA60/480p
Set to “VGA60” when 59.9Hz
VGA480 signals are being input
(refer to page 70 for details). Set to
“480p” when 480p RGB signals are
being input.
BACK COLOR
This sets the color which is
projected onto the screen when no
signal is being input to the projector.
CINEMA REALITY
(S-VIDEO/VIDEO/480i and 576i
YP
BPRonly)
ON
Set to “ON” when you would like 24
frames per second pictures (such as
movies) to project the source
faithfully.
OFF
Set to “OFF” when the projected
pictures have problems with
captions or subtitles when the
setting is “ON”.
FRONT/REAR
This setting should be changed in
accordance with the projector
setting-up method. 
(Refer to page 18.)
FRONT
When the projector is placed in front
of a screen.
REAR
When using a translucent screen.
DESK/CEILING
This setting should be changed in
accordance with the projector 
setting-up method. 
(Refer to page 18.)DESK
When the projector is placed on a
desk or similar.
CEILING
When the projector is suspended
from a ceiling using the ceiling
bracket (sold separately).
FAN CONTROL
Set “FAN CONTROL” to “HIGH”,
when using this projector at high
elevations (above 1 400 m) only.
LAMP POWER
This setting changes the lamp
brightness. When set to “LOW”, the
luminance of the lamp is reduced,
but the projector uses less power,
and the operating noise is also
reduced. This can help to extend
the lamp’s operating life. If using the
projector in small rooms where high
luminance is not required, it is
recommended that you set the
“LAMP POWER” to “LOW”.
LAMP RUN TIME
This setting displays the usage time
for the lamp unit which is currently
being used. When replacing the
lamp unit, follow the instructions on
page 58, and reset “LAMP RUN
TIME” to “0”.
NOTE:
BThe lamp’s operating life varies
depending on the usage
conditions (such as the “LAMP
POWER” setting and the
number of times the power is
turned on and off).  
						

							ENGLISH-49
Adjustments and settings
FUNC 1
This assigns a function to the FUNC1
button of the remote control unit .
MUTE
Functions in the same way as the
“MUTE” function. (page 46)
KEYSTONE
Functions in the same way as when
“KEYSTONE” is selected from the
“POSITION” menu screen. (page
43)
CONTROL KEY
To disable the buttons on the
projector, set “CONTROL KEY” to
“OFF”. A confirmation screen will
then be displayed. Select “OK” by
pressing the Ior Hbutton. To use
the buttons on the projector, set to
“ON” by using the remote control
unit. 
AUTO POWER OFF
If no signal is input to the projector
for the duration of the period you
set, the projector will return to
standby mode. The period can be
set from 15 minutes to 60 minutes in
5 minute intervals. If you don’t use
this feature, set it to “DISABLE”. 
This feature will not function when
using the “FREEZE” function.
SET ID
This item is used to set the projector
ID number to control two or more
projectors either simultaneously or
separately.
ALL
The projectors can be controlled from
any remote control unit regardless of
their ID numbers.
1-64
The projector can be controlled from
the remote control unit with the
same ID number.
NOTE:
BWhen the projector is
connected to a personal
computer via a wired LAN, the
projector will go into “WEB
STANDBY” mode. (page 50)
NOTE:
B“SET ID” is set to “ALL” by
default. Hence ID number
need not be set when only one
projector is used.
BIf the projectors are given ID
numbers, their remote control
units must be assigned the
same ID numbers, respectively.
BWhen several projectors are set
up together and “SET ID” is set
to “ALL”, none of the projectors
can be operated separately
from other projectors, even if
they have been set with
different ID numbers.
B
The projector cannot be turned on
and off from the remote control
unit if the “CONTROLLER ID”
does not match the projector ID
number. For details on setting the
projector ID number in the remote
control unit, refer to page 23.
ALL
1
64 
						

							50-ENGLISH
Network setup 
You need adjust some items when
controlling the projector with a
personal computer via a wired LAN.
Refer to the “Network Function Edition”
operating instructions for details.
Press the For Gbutton on the projector
or remote control unit to select an item.
When adjusting “ZOOM/FOCUS”, press
the ENTER button to display the
adjustment screen.
OFF
OFFON
ON
NETWORKNETWORK
HOSTNAME
WEB CONTROL
WEB STANDBY
WEB PASSWORD
MAC ADDRESS
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00:0B:97:41:00:00LAN1
WEB CONTROL
To control the projector with a
personal computer via a wired LAN,
set “WEB CONTROL” to “ON”. To
prevent it, set to “OFF”.
WEB STANDBY
To turn on the power with a personal
computer via a wired LAN, set the “WEB
STANDBY” to “ON”. When the projector is
in “WEB STANDBY” mode (the projector
is in standby mode and connected to a
computer via a wired LAN), the cooling fan
operates and the power indicator on the
projector flashes slowly in red.
WEB PASSWORD
You can set the password for
controlling the projector with a
personal computer via a wired LAN.
MAC ADDRESS
Displays the MAC address (Media
Access Control Address), which is unique
to the network device. This function may
be needed when using the DHCP server.
NETWORK
Network settings can be selected
and you can then make further
settings.
HOSTNAME
The host name for this projector can
be set.
Adjusting the lens
Press the LENS button.
LENS
ZOOM/FOCUS
LENS SELECT 
STANDARD
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ZOOM/FOCUS
Refer to page 31 for details.
LENS SELECT
Change the setting in accordance
with the type of projection lens (sold
separately) by pressing the Ior H
button.
STANDARD
For standard projection
LONG FOCUS
For ET-LE30
MIDDLE FOCUS
For ET-LE20
SHORT FOCUS
For ET-LE10