Panasonic Projector Pt Lc76u 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...

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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...

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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....

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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...

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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...

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Care and maintenance
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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...

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Care and maintenance
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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....

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Care and maintenance
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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...

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Others
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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˝)...

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Others
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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...