Panasonic LCD Projector PT-LC76U PT-LC56U Operating Instructions

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Adjustments and settings
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RESIZINGThis should normally be set to “ON”.
(This setting is only for signals
which have lower resolutions than
the LCD panels. Refer to page 58
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 picture 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),
keystone distortion correction or
INDEX WINDOW will not function.FRAME LOCKIf the picture’s condition is bad while
a RGB moving picture signal is
projected, set the FRAME LOCK to
“ON”. Refer to page 58 on
compatible RGB signals.
Changing the display languageUse the Fand Gbuttons on the projector or remote control unit to select a
language, then press the ENTER button to accept the setting.
Indicates the language which is
currently set   LANGUAGE    ENGLISH
ENGLISH
DEUTSCH
FRANÇAIS
ESPAÑOL
ITALIANO
  SELECT  ENTER  RETRN
NOTE:
B
This projector is equipped with an
aspect ratio selection function.
However, if a mode which does
not match the aspect ratio of the
input signal is selected, 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 with the
aim of displaying programs for
viewing 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.
B
If 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 so
that part of the picture is no longer
visible. Such programs should be
viewed in 4:3 mode to give proper
consideration to the aims and
intentions of the original program’s
creator. 
						

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Adjustments and settings
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Use the Fand Gbuttons on the
projector or remote control unit to
select an item, then press the Ior
Hbuttons to change the setting.OSDON
The current input 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 current input name to be
displayed.AUTO SIGNALThis 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.
AUTO KEYSTNThis should normally be set to ON.
ON
During automatic setup, the angle of
tilt of the projector is detected and
keystone distortion is corrected
automatically.
OFF
Use this setting when you do not
want automatic keystone correction
to be carried out during automatic
setup, such as when the screen
itself is at an angle.AUTO RGB INThis should normally be set to ON.
ON
During automatic setup, the
projector selects whichever one of
the RGB1 IN or RGB2 IN
connectors has a signal being input,
and uses that signal for projection.
(If a picture is being projected, the
signal source is not automatically
changed.)
OFF
Use this setting when you do not
want the signal source to be
changed automatically during
automatic setup.RGB2 SELECTThis setting is used to select the
function of the RGB2 IN/RGB1 OUT
connector. RGB2 SELECT   INPUT                                [              OUTPUT
RGB/YP
BPR
This should normally be set to
AUTO. RGB or YP
BPRis selected
automatically depending on the
synchronising signal status.
When HDTV, 525p (480p), 525i
(480i), 625i, 750p, and some
VGA480 signals are being 
input, select “RGB” or “YP
BPR” in
accordance with the input signal.
VGA60/525PWhen a VGA60 or 525p RGB signal
is being input, select the signal in
accordance with the input signal.SXGA MODEThis setting is only for an SXGA
signal.
SXGA
Select this item normally.
SXGA+
When the projected image is
contracted vertically, select this
item.BACK COLORThis sets the color which is
projected onto the screen when no
signal is being input to the projector.
FRONT/REARThis setting should be changed in
accordance with the projector
setting-up method.
Set to “FRONT” when using a
normal reflective screen with the
projector positioned in front of the
screen, and set to “REAR” when
using a translucent screen with the
projector positioned behind the
screen.DESK/CEILINGThis setting should be changed in
accordance with the projector
setting-up method.
Set to “DESK” when setting up the
projector on a desk or similar, and
set to “CEILING” when suspending
the projector from the ceiling using
the ceiling bracket which is sold
separately.FAN CONTROLSet FAN CONTROL to “HIGH”,
when using this projector at high
elevations (above 1400 m) only.LAMP POWERThis 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.
RGB/YP
BPR      AUTO
yyyyyyyyyyyyyyyy
[
                    
RGB
yyyyyyyyyyyyyyyy
[
                     YP
BPR
VGA60/525P     525P                                [               VGA60BACK COLOR     BLUE                                [              BLACK
FRONT/REAR    FRONT                                [               REARDESK/CEILING   DESK                                [             CEILINGLAMP POWER     HIGH                                [               LOW
SXGA MODE     SXGA                                [              SXGA+
FAN CONTROL  STANDARD
  
                                [               HIGH
Option settings       OPTION1
OSD             ON
AUTO SIGNAL     ON
AUTO KEYSTN     ON
AUTO RGB IN     ON
RGB2 SELECT   INPUT
RGB/YP
BPR      AUTO
VGA60/525P     525P
SXGA MODE      SXGA
  SELECT  ADJ    RETRN
       OPTION2
BACK COLOR     BLUE
FRONT/REAR    FRONT
DESK/CEILING   DESK
FAN CONTROL  STANDARD
LAMP POWER     HIGH
LAMP RUNTIME   100H
FUNC 1        INDEX
CONTROL KEY     ON
AUTO POW.OFF DISABLE
  SELECT  ADJ    RETRN 
						

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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 RUNTIMEThis setting displays the usage time
for the lamp unit which is currently
being used. FUNC 1This assigns a function to the F1
button of the ET-RM200 wireless
remote control unit (sold
separately).
INDEX
Functions in the same way as the
INDEX WINDOW button on the
accessory card remote control unit.
(page 29)
KEYSTONE
Functions in the same way as when
“KEYSTONE” is selected from the
MAIN MENU screen. (page 34)
CONTROL KEYTo disable the buttons on the
projector, set CONTROL KEY to
“OFF”. A confirmation screen will
then be displayed. Select “OK” by
using Iand Hbuttons. To use the
buttons on the projector, set to “ON”
by using the remote control unit.
(page 14)AUTO POW.OFFIf any signal is not input into the
projector during the time that you set
up, the projector will return to standby
mode. The auto power off time can
be set to, from 15 minutes to 60
minutes, by 5 minutes. If you dont
use this feature, set it to “DISABLE”.
This feature will not function when
using the freeze function.
ENGLISH
-45
Adjustments and settings
FUNC1         INDEX                                [             KEYSTONE
CONTROL KEY     ON                                [               OFF
Setting up the SECURITY functionThis projector is equipped with a security function. A password input screen
can be displayed, or a company URL can be set up and displayed at the
bottom of the projected image.
Use the Fand Gbuttons on the
projector or remote control unit to
select SECURITY, then press the
ENTER button.
       MENU
KEYSTONE
PICTURE
POSITION
INDEX WINDOW
SHUTTER
VOLUME
LANGUAGE
OPTION1
OPTION2SECURITY
SELECT
  ENTER  EXIT
PASSWORD





OK













RETURN
   AMEND PASSWD
NEW
CONFIRM
   OK    






RETURN
       SECURITY
INPUT PASSWD   OFF
AMEND PASSWD 
TEXT DISPLAY    ON
TEXT CHANGE
  SELECT  
ADJ  
  RETRN
INPUT PASSWDThe password input screen can be
displayed when the power is turned
on. All of the controls other than the
POWER button are disabled unless
the password is entered correctly.
ON
INPUT PASSWD is enabled.
OFF
INPUT PASSWD is disabled. The
password input screen will not be
displayed when the power is turned
on.AMEND PASSWDPasswords can be changed.Press
the ENTER button to display the
AMEND PASSWD screen.#
Set a password by pressing the
F,G,I, and Hbuttons on the
remote control unit. (A maximum
of 8 buttons can be set.)
$
Press the ENTER button.
%
Enter the password again for
confirmation.
&
Press the ENTER button.
(Password change will be
completed.) (When you use the SECURITY
function for the first time)
Press the F, H, G, I, F, H, G
and Ibuttons in order, then press
the ENTER button.
(When a password change has
been made before)
Type in the changed password, then
press the ENTER button.
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).  
						

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Care and maintenance
When the TEMP indicator and the
LAMP indicator are illuminatedThere are two indicators on the control panel of the projector which give
information about the operating condition of the projector. These indicators
illuminate or flash to warn you about problems that have occurred inside the
projector, so if you notice that one of the indicators is on, turn off the power
and check the table below for the cause of the problem.
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TEXT DISPLAYThe setup letters can be displayed
at the bottom of the projected image
while an image is projected.
ON
TEXT DISPLAY is enabled.
OFF
TEXT DISPLAY is disabled.TEXT CHANGEThe setup letters which will be
displayed when TEXT DISPLAY is
set to “ON” can be changed.
Press the ENTER button to display
the TEXT CHANGE screen.#
Use the F, G, Iand Hbuttons
to select the characters, then
press the ENTER button. (You
can enter 22 characters
continuously.)
CPress “BS” on the screen to
delete a character.
$
Use the F, G, Iand Hbuttons
to select “OK”, then press the
ENTER button.
CSelect “Cancel” to cancel the
change.
NOTE:
BThe entered password will
appear as   . It will not be
displayed on the screen.
BIf you enter the wrong
password, the letters
“PASSWORD” and “NEW” will
become red. Enter the correct
password again.
BS
OK
Cancel
    TEXT CHANGE
  ABCDEFGHIJKLMNO
  PQRSTUVWXYZ0123
  456789 
@.:;/+-
LAMP indicator
TEMP indicator
ProblemIndicator
display
Flashing (red)
(Lamp unit on)
The surrounding
temperature or the
temperature inside
the projector has
become unusually
high.Illuminated (red)
(Lamp unit on)
The temperature
inside the projector
has become
dangerously high, or
the temperature has
suddenly changed.
BThe ventilation holes may be covered.
BThe ambient temperature in the place of use may be too high.
BThe air filter may be blocked.
BUncover the ventilation holes.
BSet up the projector in a place where the temperature is
between 0 °C (32 °F) and 40 °C (104 °F) and the humidity is
between 20% and 80% (with no condensation). [If you set the
FAN CONTROL to “HIGH” (page 43), set up the projector in a
place where the temperature is between 0 °C (32 °F) and 35 °C
(95 °F) and the humidity is between 20% and 80% (with no
condensation).]
BTurn off the MAIN POWER switch by following the procedure
on page 24, and then clean the air filter (refer to page 49).
Possible
causeRemedyThe surrounding
temperature or the
temperature inside
the projector has
become dangerously
high, causing the
lamp unit to be
automatically shut
off.Flashing (red)
(Lamp unit off) TEMP indicator 
						

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Care and maintenance
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Cleaning and replacing the air filterIf the air filter becomes clogged with dust, the internal temperature of the
projector will rise, the TEMP indicator will flash and the projector power will
turn off. The air filter should be cleaned every 100 hours of use,
depending on the location where the projector is being used.
Remedy
Problem Indicator
display
Flashing (red)
It is nearly time to
replace the lamp
unit.Illuminated (red)
An abnormality has been detected in the lamp
circuit.
BDoes “REPLACE
LAMP” appear on
the screen after
the projector is
turned on?
BThis occurs when
the operation time
for the lamp unit is
nearing 1800
hours. (when
LAMP POWER
has been set to
“HIGH”) Ask your
dealer or an
Authorised
Service Center to
replace the lamp
unit.
Possible
cause
BThe power may
have been turned
on straight away
after it was turned
off.
BWait for a while
until the lamp unit
cools down before
turning the power
back on again.BThere may be an
abnormality in the
lamp circuit.
BTurn off the MAIN
POWER switch by
following the
procedure given
on page 24, and
then contact an
Authorised
Service Center. LAMP indicator
NOTE:
BBe sure to turn off the MAIN POWER switch by following the procedure
given in “Turning off the power” on page 24 before carrying out any of
the procedures in the “Remedy” column.
BIf the main power turns off after the TEMP indicator starts flashing, it
means that an abnormality has occurred. Please contact an Authorised
Service Center so that the necessary repairs can be made.
%Replace the air filter, and then
install the air filter cover.
Air filter cover
Air filter
CleaningUse a vacuum cleaner to clean off
any accumulated dust.
Air filter cover
$Gently turn the projector
upside down, and then remove
the air filter cover.
NOTE:
BIf the dust cannot be removed
by cleaning, it is time to
replace the air filter. Please
consult your dealer.
Furthermore, if the lamp unit is
being replaced, replace the air
filter at this time also.Replacement procedure#Turn off the MAIN POWER
switch and disconnect the
power cord plug from the wall
outlet.
Turn off the MAIN POWER switch
according to the procedure given
in “Turning off the power” on
page 24 before disconnecting the
plug from the wall outlet.
NOTE:
BBe sure to install the air filter
cover before using the
projector. If the projector is
used without the air filter cover
installed, dust and other
foreign particles will be drawn
into the projector, and
malfunctions will result. 
						

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Care and maintenance
50-E
NGLISH
Lamp unit replacement procedure#Turn off the MAIN POWER
switch according to the
procedure given in “Turning off
the power” on page 24, and
then disconnect the power
cord plug from the wall outlet
and check that the area around
the lamp unit has cooled down.
$Use a Phillips screwdriver to
turn the lamp unit cover fixing
screws at the bottom of the
projector, and then remove the
lamp unit cover from the
projector.%
Use a Phillips screwdriver to loosen
the two lamp unit fixing screws until
the screws turn freely. Then hold
the handle of the lamp unit and
gently pull it out from the projector.
&Insert the new lamp unit while
making sure that the direction
of insertion is correct, and then
use a Phillips screwdriver to
securely tighten the lamp unit
fixing screws.
When inserting the new lamp unit, be
sure to push it in at the point Aand B.
Lamp indicator warning
light On-screen display
The projector will enter
Standby Mode and the
red indicator lamp will
illuminate. Displayed for 30
seconds. Pressing any
button will clear the
display. More than 1800 hours
This display cannot be
cleared at all, no matter
which button is pressed. More than 2000 hours
Replacing the lamp unitWarningThe lamp unit should only be
replaced by a qualified
technician.
When replacing the lamp, allow it
to cool for at least one hour
before handling it.
BThe lamp cover gets very hot,
and contact with it can cause
burns.Notes on replacing the lamp
unitBThe light generating lamp is
made of glass, so dropping it or
allowing it to hit hard objects may
cause it to burst. Be careful when
handling the lamp.
BAfter having removed the old
lamp, carelessly discarding it can
cause the lamp to burst. Dispose
of the lamp with the same care
that would be taken with a
fluorescent light.
BA Phillips screwdriver is
necessary for removing the lamp
unit. Make sure that your hands
are not slippery when using the
screwdriver.
Lamp unit replacement
periodThe lamp is a consumable product.
Even when the full life of the bulb
has not been exhausted, the
brightness of the light will gradually
decline. Therefore periodic
replacement of the lamp is
necessary.
The intended lamp replacement
interval is 2000 hours, but it is
possible that the lamp may need to
be replaced earlier due to variables
such as a particular lamp’s
characteristics, usage conditions
and the installation environment.
Early preparation for lamp
replacement is encouraged.
A lamp that has exceeded 2000
hours of use has a much greater
chance of exploding. In order to
prevent the lamp from exploding,
the lamp will be automatically shut
off when 2000 hours of use have
been reached.
NOTE:
BThe projector is not supplied
with a replacement lamp unit.
Please ask your dealer for
details. Lamp unit product 
no.: ET-LAC80
CAUTION:
BDo not use any lamp unit other
than the one with the product
number indicated above.
NOTE:
BThe usage hours explained
above are for use when the
HIGH setting has been
selected for LAMP POWER in
the OPTION2 menu. If the
LOW setting is selected, the
brightness of the lamp will be
less and life of the lamp can be
extended.
BWhile 2000 hours is the
intended replacement interval,
it is not a period of time
covered by warranty.
NOTE:
BIf the lamp usage time has passed 2000 hours (when LAMP POWER
has been set to “HIGH”), the projector will switch to standby mode after
approximately 10 minutes of operation. The steps )to -on the next
page should thus be completed within 10 minutes.
Lamp unit coverHandle
Lamp unit cover fixing screwsLamp unit fixing screws
A
B 
						

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Care and maintenance
52-E
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Before calling for serviceBefore calling for service, check the following points.
Problem Possible cause
Page
Power does not
turn on.
No picture
appears.
The picture is
fuzzy.COLOR is too
light or TINT is
poor.No sound can
be heard.
The remote
control unit
does not
operate.The buttons on
the projector do
not function.
BThe power cord may not be connected.
BThe MAIN POWER switch is turned off.
BThe main power supply is not being supplied to the
wall outlet.
BTEMP indicator is illuminated or flashing. 
BLAMP indicator is illuminated or flashing. 
BThe lamp unit cover has not been securely
installed.
BThe video signal input source may not be
connected properly.
BThe input selection setting may not be correct. 
BThe BRIGHT adjustment setting may be at the
minimum possible setting.
BThe shutter function may be in use.
BThe lens cover may still be attached to the lens.
BThe lens focus may not have been set correctly. 
BThe projector may not be at the correct distance
from the screen.
BThe lens may be dirty.
BThe projector may be tilted too much. 
BCOLOR or TINT adjustment may be incorrect. 
BThe input source which is connected to the
projector may not be adjusted correctly.
BThe audio signal source may not be connected
properly.
BThe volume adjustment may be at the lowest
possible setting. 
BThe battery may be weak.
BThe battery may not be inserted correctly.
BThe remote control signal receptor on the projector
may be obstructed.
BThe remote control unit may be out of the
operation range.
BThe CONTROL KEY may be set to “OFF”. 
In order to set the CONTROL KEY to “ON” without
using the remote control unit, keep holding down
the ENTER button on the projector and press the
MENU button for more than 2 seconds. It will then
be turned ON.–
–
–
47
48
–
–
23
36
27
–
23
18
–
18
36
–
–
28,
31–
21
21
21
44
+Press the ENTER button to
display the OPTION2 screen,
and then use the Fand G
buttons to select LAMP
RUNTIME.
,Press and hold the ENTER
button for approximately 3
seconds.
The “LAMP RUNTIME” will
change to “TIME RESET
[POWER OFF]”.-
Turn off the power.
This will reset the cumulative
usage time for the lamp unit to
zero.
Refer to page 24 for details on
how to turn off the power. 'Install the lamp unit cover, and
then use a Phillips screwdriver
to securely tighten the lamp
unit cover fixing screws.
(Insert the power cord plug into
the wall outlet and then press
the MAIN POWER switch.
)Press the POWER button so
that a picture is projected onto
the screen.
*Press the MENU button to
display the MAIN MENU
screen, and then press the F
and Gbuttons to move the
cursor to select “OPTION2”.
       MENU
KEYSTONE
PICTURE
POSITION
INDEX WINDOW
SHUTTER
VOLUME
LANGUAGE
OPTION1
OPTION2SECURITY
SELECT
  ENTER  EXIT
       OPTION2
BACK COLOR     BLUE
FRONT/REAR    FRONT
DESK/CEILING   DESK
FAN CONTROL  STANDARD
LAMP POWER     HIGH
LAMP RUNTIME  1820H
FUNC 1        INDEX
CONTROL KEY     ON
AUTO POW.OFF DISABLE
  SELECT         RETRN       OPTION2
BACK COLOR     BLUE
FRONT/REAR    FRONT
DESK/CEILING   DESK
FAN CONTROL  STANDARD
LAMP POWER     HIGH
TIME RESET [POWER OFF]
FUNC 1        INDEX
CONTROL KEY     ON
AUTO POW.OFF DISABLE
  SELECT         RETRN
NOTE:
B
Be sure to install the lamp unit
and the lamp unit cover securely.
If they are not securely installed,
it may cause the protection
circuit to operate so that the
power cannot be turned on.
NOTE:
BIf the POWER indicator on the
projector does not illuminate
red when the MAIN POWER
switch is turned on, turn the
MAIN POWER switch off again,
unplug the power cord from the
electrical outlet, and check that
the lamp unit and the lamp unit
cover are securely installed.
Then turn the MAIN POWER
switch back on.
NOTE:
BIf the MENU button is pressed,
the lamp time resetting screen
will be cancelled. 
						

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Care and maintenance
54-E
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The picture does
not display
correctly.Picture from
computer does
not appear.Problem Possible cause
BThe signal format (TV system) may not be set
correctly.
BThere may be a problem with the video tape or
other signal source.
BA signal which is not compatible with the projector
may be being input.
BThe cable may be too long.
BThe external video output for the laptop computer
may not be set correctly.
(You may be able to change the external output
settings by pressing the [Fn]+[F3] or [Fn]+[F10]
keys simultaneously. The actual method varies
depending on the type of computer, so refer to the
documentation provided with your computer for
further details.)
BIf an RGB input indicator is turned off, the video
signals may not be output from the computer.
BRGB2 SELECT in the OPTION1 menu is set to
OUTPUT when the signals are input to RGB2 IN /
RGB1 OUT connector.
Page36 
–
58 
–
–14,
2542 
Before carrying out cleaning and maintenance, be
sure to disconnect the power cord plug from the
wall outlet.Wipe the cabinet with a soft, dry cloth.
If the cabinet is particularly dirty, soak the cloth in water with a small amount
of neutral detergent in it, squeeze the cloth very well, and then wipe the
cabinet. After cleaning, wipe the cabinet dry with a dry cloth.
If using a chemically-treated cloth, read the instructions supplied with
the cloth before use.
Do not wipe the lens with a cloth that is dusty or which produces lint.
If any dust or lint gets onto the lens, such dust or lint will be magnified and
projected onto the screen. Use a blower to clean any dust and lint from the
lens surface, or use a soft cloth to wipe off any dust or lint.Cleaning and maintenance 
						

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Others
56-E
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During RGB input/output:
R.G.B.: 0.7 V [p-p], 75 Ω
G.SYNC: 1.0 V [p-p], 75 Ω
HD/SYNC: TTL, automatic plus/minus polarity
compatible
VD: TTL, automatic plus/minus polarity
compatible
VIDEO IN: Single-line, RCA pin jack
1.0 V [p-p], 75 Ω
S-VIDEO IN: Single-line, Mini DIN 4-pin
Y 1.0 V [p-p], C 0.286 V [p-p], 75 Ω
AUDIO IN:0.5 V [rms] RCA pin jack x 2 (L-R)
Serial connector: DIN 8-pin RS-232C compatible
Cabinet: Moulded plastic (ABS/PC)
Dimensions:
Width: 297 mm (11-11/16˝)
Height: 72 mm (2-13/16˝)
Length: 209 mm (8-7/32˝) (without lens cover)Weight: 2.2 kg(4.9 lbs.)
Operating environment:
Temperature: 0 °C–40 °C (32 °F–104 °F)
[When the FAN CONTROL is set to
“HIGH” (page 43); 0 °C–35 °C (32 °F–95
°F)]
Humidity: 20%–80% (no condensation)
Certifications: UL60950, C-UL
FCC Class B
Power supply: 3 V DC (Lithium CR2025 battery x1)
Operating range: Approx. 7 m (23´) (when operated directly
in front of signal receptor)
Weight: 18 g(0.6 ozs.) (including battery)
Dimensions:
Width: 40 mm (1-9/16˝)
Length: 6.5 mm (1/4˝)
Height: 86 mm (3-3/8˝)
Ceiling bracket ET-PKC80
Wireless remote control unit ET-RM200
Serial adapter ET-ADSER
(DIN 8-pin/D-sub 9-pin)
SpecificationsPower supply: 100 V–240 V ~, 50 Hz/60 Hz
Power consumption: 220 W (During standby (when fan is
stopped): Approx. 3 W)
Amps: 2.5 A–1.0 ALCD panel:
Panel size (diagonal): 0.7 type (17.78 mm)
Aspect ratio: 4:3 (16:9 compatible)
Micro lens array:
PT-LC76U: Available
PT-LC56U: Not available
Display method: 3 transparent LCD panels (RGB)
Drive method: Active matrix method
Pixels:
PT-LC76U: 786 432 (1024 x 768) x 3 panels
PT-LC56U: 480 000 (800 x 600) x 3 panelsLens: Manual zoom (1 - 1.2) / focus lens 
F 2.0 - 2.3, f 22.0 mm - 26.2 mmLamp: UHM lamp (160 W)Luminosity: 1 600 lm/ANSIScanning frequency(for RGB signals):
Horizontal scanning frequency:
15 kHz–91 kHz
Vertical scanning frequency: 50 Hz–85 Hz
Dot clock frequency: Less than 100 MHz
YP
BPRsignals: 525i (480i), 525p (480p), 625i (576i),
750p (720p), 1125i (1080i)
Color system: 7 (NTSC/NTSC 4.43/PAL/PAL-M/PAL-
N/PAL60/SECAM)Projection size: 838.2 mm - 7620 mm (33˝ - 300˝)Throw distance: 1.1 m - 11.0 m (3´7˝ - 36´1˝)Optical axis shift: 6:1 (fixed)Screen aspect ratio: 4:3Installation: Front/Rear/Ceiling/Desk (Menu selection
method)Speaker: 4 cm x 3 cm oval x 1
Max. useable volume output: 2 W (mono)Connectors
RGB IN/OUT: Dual-line D-SUB HD 15-pin (female)
(One-line is available for input and output)
During YP
BPRinput/output:
Y: 1.0 V [p-p], 75 Ω
P
B,PR: 0.7 V [p-p], 75 Ω 
						

							ENGLISH
-59
Others
58-E
NGLISH
Appendix*1 The “i” appearing after the resolution indicates an interlaced signal.
*2 The following symbols are used to indicate picture quality.
AA Maximum picture quality can be obtained.
A Signals are converted by the image processing circuit before picture 
is projected
B Some loss of data occurs to make projection easier.
*3 Signals with “OK” in the Resizing column can be set using the RESIZING
command in the POSITION menu. (Refer to page 40.)
*4 Signals that are compatible with the FRAME LOCK function. (page 40.)
720 x 480i 15.734 59.940 A A OK OK
Video/S-Video
720 x 576i 15.625 50.000 A A OK OK
Video/S-Video
720 x 480i 15.734 59.940 13.500 A A OK OK
YPBPR/RGB
720 x 576i 15.625 50.000 13.500 A A OK OK
YPBPR/RGB
720 x 483 31.469 59.940 27.000 A A OK OK
YPBPR/RGB
1 920 x 1 080i 33.750 60.000 74.250 A A
YPBPR/RGB
1 920 x 1 080i 28.125 50.000 74.250 A A
YPBPR/RGB
1 280 x 720 45.000 60.000 74.250 A A
YPBPR/RGB
640 x 400 31.469 70.086 25.175 A A OK OK RGB640 x 400 37.861 85.081 31.500 A A OK OK RGB640 x 480 31.469 59.940 25.175 A A OK OK RGB640 x 480 35.000 66.667 30.240 A A OK OK RGB640 x 480 37.861 72.809 31.500 A A OK OK RGB640 x 480 37.500 75.000 31.500 A A OK OK RGB640 x 480 43.269 85.008 36.000 A A OK OK RGB800 x 600 35.156 56.250 36.000 A AA OK RGB800 x 600 37.879 60.317 40.000 A AA OK RGB800 x 600 48.077 72.188 50.000 A AA OK RGB800 x 600 46.875 75.000 49.500 A AA OK RGB800 x 600 53.674 85.061 56.250 A AA OK RGB832 x 624 49.725 74.550 57.283 A A OK RGB1 024 x 768 48.363 60.004 65.000 AA A RGB1 024 x 768 56.476 70.069 75.000 AA A RGB1 024 x 768 60.023 75.029 78.750 AA A RGB1 024 x 768 68.678 84.997 94.500 AA A RGB1 024 x 768i 35.520 86.952 44.897 AA A RGB1 152 x 864 63.995 71.184 94.200 A A RGB1 152 x 864 67.500 74.917 108.000 B B RGB1 152 x 864 76.705 85.038 121.500 B B RGB1 152 x 870 68.681 75.062 100.000 B B RGB1 280 x 960 60.000 60.000 108.000 B B RGB1 280 x 1 024 63.981 60.020 108.000 B B RGB1 280 x 1 024 79.977 75.025 135.001 B B RGB1 280 x 1 024 91.146 85.024 157.500 B B RGB 1 400 x 1 050 63.981 60.020 108.000 B B RGB
1 600 x 1 200 75.000 60.000 162.000 B B RGB
NTSC/NTSC4.43/PAL-M/PAL60PAL/PAL-N/SECAM
525i625i525pHDTV60HDTV50750p
VGA400VGA480SVGAMAC16
XGAMXGAMAC21MSXGA
SXGAUXGA
Display
resolution
(dots)*
1
Scanning
frequency
H
(kHz)V 
(Hz)
Dot clock
frequency
(MHz)
Picture
quality*
2
LC76Resizing*
3
Format
LC56 LC76 LC56
Mode
*4
*4
*4
*4
*4
*4
*4
Connector pin wiringB
The pin layout and signal names for the S-VIDEO IN connector are shown below.
Pin No. Signal
#Earth (Luminance signal)
Earth (Color signal)
Luminance signal
Color signal $
%
&
BThe pin layout and signal names for the RGB/YP
BPR(RGB1 IN/RGB2 IN)
connector are shown below.
Pin No. Signal
#R/P
R
G/G·SYNC/Y
B/P
B
SDA $
%
.
/HD/SYNC
0VD
1SCL
Pin +is spare.
Pins &–*, ,and -are for earth.
Pins .and 1functions are only valid when supported by the computer
#$
% &External view
-1
#', (
External view
List of compatible signals
For 16:9 aspect ratios, the following formula can be used to calculate the
projection distance.
LW=0.031xSD/0.0254-0.038
LT=0.037xSD/0.0254-0.038
Projection dimensions calculation methodsIf the screen size (diagonal) is SD (m), then the following formula is used to
calculate the projection distance for the wide lens position (LW) and the
projection distance for the telephoto lens position (LT).
SDSW4:3
LW/LT
H1
SH
Minimum Projection Distance
Maximum Projection Distance
LW=0.033xSD/0.0254-0.038
LT=0.040xSD/0.0254-0.038
Minimum Projection Distance
Maximum Projection Distance