Panasonic Projector Pt Lb20vu Operating Instructions

ENGLISH-51
Network setup (PT-LB20NTU only)
You need to make adjustments on some items when controlling the projector
with a personal computer by means of the wireless network. Refer to the
accessory CD-ROM for details.
INPUT PASSWD
Set to “ON” if you want password
confirmation to be used when
controlling the projector with a
personal computer by means of the
wireless network.
AMEND PASSWD
Passwords can be changed.
WEB CONTROL
To control the projector with a
personal computer by means of the
wireless...

52-ENGLISH
When the TEMP indicator and the
LAMP indicator are illuminated
There 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.
Problem Indicator
display
The surrounding temperature or
the...

ENGLISH-53
Care and maintenance
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 1 800
hours (when
“LAMP POWER”
has been set to
“HIGH” and when
“AI” has been set
to “OFF”). Ask
your dealer or an
Authorized
Service Center to
replace the lamp
unit....

54-ENGLISH
Cleaning and replacing the air filter
If the air filter becomes clogged with dust, the internal temperature of the
projector will rise, the TEMP indicator will illuminate and the projector’s
power will turn off (the TEMP indicator will flash after the power is turned off).
The air filter should be cleaned every 100 hours of use.
%Replace the air filter, and then
install the air filter cover.
Cleaning
Use a vacuum cleaner to clean off
any accumulated dust.
Replacement procedure
#Turn off the...

ENGLISH-55
Care and maintenance
Replacing the lamp unit
Warning
The 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 touching it can cause burns.
Notes on replacing the lamp
unit
BThe 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.
BDispose of the removed old lamp
with the same...

B
A
56-ENGLISH
Lamp unit replacement procedure
#Disconnect the power cord
from the projector by following
the procedure on page 26, 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.%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...

'Install the lamp unit cover, and
then use a Phillips screwdriver
to securely tighten the lamp
unit cover fixing screws.
(Connect the power cord.
)Press the POWER button so
that a picture is projected onto
the screen.
*Press the MENU button to
display the “MAIN MENU”, and
then press the For Gbutton
to select “OPTION”.
ENGLISH-57
Care and maintenance
+Press the ENTER button to
display the “OPTION” menu, and
then press the For Gbutton to
select “LAMP RUNTIME”.
,Press and hold the ENTER
button for...

58-ENGLISH
Before calling for service
Before calling for service, check the following points.
Problem Possible cause
Page
Power does not
turn on.
No picture
appears.
The picture is
fuzzy.
The color is pale
or grayish.
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 supply is not being supplied to the
wall outlet.
BTEMP indicator is illuminated or flashing. 
BLAMP indicator is illuminated...

ENGLISH-59
Care and maintenance
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...

60-ENGLISH
Specifications
Power supply: 100 V - 240 V ~, 50 Hz/60 Hz
Power consumption: 220 W [During standby (when fan is
stopped): Approx. 4 W]
Amps: 2.5 A - 1.3 A
LCD panel:
Panel size (diagonal):
PT-LB20NTU/PT-LB20U/PT-LB20SU:0.7 type (17.78 mm)
PT-LB20VU: 0.6 type (15.24 mm)
Aspect ratio: 4:3
Micro lens array: Available
Display method: 3 transparent LCD panels (RGB)
Drive method: Active matrix method
Pixels:
PT-LB20NTU/PT-LB20U/PT-LB20VU:786 432 (1 024 x 768) x 3 panels
PT-LB20SU: 480 000 (800 x...