Panasonic LCD Projector Pt Tw340 Operating Instructions

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Termination of the Memory Viewer
1) Press asqw to select the thumbnail  which is displayed on the upper left corner.
2) Press the  button on the remote control.
 fReturn to the standby screen “please press RC ENTER”.
3) Remove the USB memory directly.
Attention
 fWhen inserting the USB memory, confirm the direction of the plug not to damage the terminal. fPlease note following points to insert and remove the USB memory. -  
The indicator of the USB memory will be blinking when it is inserted to the projector or while the projector is reading out the data. Do not remove the USB memory while it is blinking.-   When using a USB memory without indicator, you cannot recognize when the projector reading out the data. Please re-move it from the projector after closing the Memory Viewer function or turning off the projector.-  Do not install and remove the USB memory frequently. Remove the USB memory at least 5 seconds after installation. And install at least 5 seconds after removal. While installing or removing the USB memory, the projector is in switching period for those operation.
 rCaution on handling and storing the USB memory
 fDo not put USB memory or its cap within close reach of children. Swallow\
ing them may cause suffocation. fIf the smoke or questionable odor rise, turn off the peripheral equipment and contact your dealer. fDo not put water, chemical or oil to the USB memory. It may cause short out or fire. fDo not put foreign objects or put metal objects to the USB terminal. Sta\
tic electricity may cause data loss or data corruption. f 
Do not remove the USB memory from the computer or the projector while th\
e USB memory is reading out or writing the data. It may cause data loss or data corruption. f 
Do not store the USB memory where high temperature, humid or dusty place or magnetized items are around.
Note
 fThe USB memory allows you to insert or remove regardless of the power st\
atus of the projector.
USB Display function
The USB Display function makes it is possible to project the image and a\
udio from the computer through a USB converting 
cable.
When using Windows
 rWindows operating environment
OSWindows Vista 32 bit, Windows 7 32/64 bit, Windows 8 32/64 bit
CPUIntel Core 2 Duo 2.0 GHz or faster, the compatible processor
Amount of memory256 MB or more (Recommended : 512 MB or more)
Hard-disk free space20 MB or more
DisplayResolution 640 x 480 or more, 1 600 x 1 200 or less
 fThere is no guarantee for all the computers that meet the above conditio\
ns will operate properly. 
Projecting the USB display
1) Connect the  terminal of the projector to a computer with a USB cable.
2) Press the  button on the remote control or switch the input source 
to [USB Display].
 fYou can also press the  button on the control panel and select the input source in the Input menu.
 fThe startup screen will be displayed automatically due to the driver which is built-in the projector , and executing the installation according to the instructions of the screen. The displaying of the auto installation screen is depending on the settings of computer. At this time, please select “Run autorun.exe”. Please double-click “autorun.exe” in the folder of the “USB Display” when the automatic startup is disabled.
 fThe computer screen is projected.
3) Click the driver icon  in the task bar of computer and select one item in Pop-up menu.
 fPop-up menu is only displayed in English.
 fThe item which is displayed in gray is unavailable.
[Active audio] / [Disable audio]Set whether to output the audio from the computer.
[Play video] / [Pause video]Switch between play and pause the image.
[Start] / [Stop]Set whether to display the image from the computer.
[Exit]Displayed in gray and cannot be selected.
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Note
 fIt will take a while when you want to project the computer screen. fConnect a USB cable directly to the USB connector of a computer. It will not work when connect through a USB hub. fThe screen resolution of your computer will be switched as follows: PT-TW340 and PT-TW250: 1 280 x 800 (WXGA),  PT-TX400 and PT-TX310 : 1 024 x 768 (XGA).
Termination of the USB display
1) When terminate the USB display, remove the USB cable directly.
 fThere is no need to following “Remove hardware safely” when a USB cable is disconnected.
When using Mac OS
 rMac OS operating environment
OSMac OS X 10.5, 10.6, 10.7
CPUPower PC G4 1GHz or faster
Amount of memory512 MB or more
Hard-disk free space20 MB or more
DisplayResolution 640 x 480 or more, 1 600 x 1 200 or less
 fThere is no guarantee for all the computers that meet the above conditio\
ns will operate properly. 
Projecting the USB display
1) Connect the  terminal of the projector to a computer with a USB cable.
2) Press the  button on the remote control or switch the input source 
to [USB Display].
 fYou can also press the  button on the control panel and select the input source in the Input menu.
 fThe virtual disk which is named “USB Display” will be mounted on desktop.
3) Double-click “Monitor.app” in the virtual disk that has been mounted.
 fThe computer screen is projected.
4) Right-click the driver icon  in the dock of computer and select one item in Pop-up menu.
 fThe item which is displayed in gray is unavailable.
[Active audio] / [Disable audio]Set whether to output the audio from the computer.
[Play video] / [Pause video]Switch between play and pause the image.
[Start] / [Stop]Set whether to display the image from the computer.
[Options]Set the items of “Keep in Dock”, “Open at Login” or “Show in Finder”.
[Show All Windows]Display the background of computer on the full screen temporarily.
[Hide] / [Show]Set whether to display the USB driver icon.
[Quit]Terminate the USB Display.
Note
 fIt will take a while when you want to project the computer screen.
 fConnect a USB cable directly to the USB connector of a computer. It will not work when connect through a USB hub.
Termination of the USB display
1) When terminate the USB display, remove the USB cable directly.
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Chapter 5   Maintenance
This chapter describes methods of inspection when there are problems, ma\
intenance, and 
replacement of the units.  
						

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Power/Warning Indicators
When an indicator lights up
If a problem should occur inside the projector, the power indicator  and the warning indicator 
 will inform you by lighting or blinking. Check the status of the indicators and remedy the indicated problems as 
follows.
Attention
 fBefore you take a remedial measure, follow the procedure of switching the power off indicated in “Powering Off the 
Projector” (x page 36).
Power indicator  
Warning  indicator StatusCauseSolution
OffOffThe power cord is 
unplugged.----
Red
LightingOff
The power cord is plugged.----
The projector is in standby 
mode after the cooling is 
completed.
----
LightingLighting in redThe replacement time of the lamp unit is displayed. (Standby mode)
 fThe indicator lights up when the usage time of the lamp unit reaches  6 000 hours (when [Lamp control] is set to  [  (Eco 1)]). fReplace the lamp unit.
LightingBlinking in red
It has exceed the replace-ment time of the lamp unit and the projector is turned off automatically.  
 fThe indicator blinks when the usage time of the lamp unit reaches  6 600 hours (when [Lamp control] is set to  [  (Eco 1)]).
BlinkingOff
The projector inside is 
cooling down and after 
a while, the projector is 
turned off. (The projector 
will enter the standby 
mode)
----
Power indicator 
Warning indicator  
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Power indicator  
Warning  indicator StatusCauseSolution
Green
LightingOffProjecting.----
LightingLighting in redThe replacement time of the lamp unit is displayed. (Projecting)
 fIs the lamp 
replacement warning 
icon  
displayed when turn 
on or turn off the 
projector?
 fThe indicator lights up when the usage time of the lamp unit reaches  6 000 hours (when [Lamp control] is set to  [  (Eco 1)]).
 fReplace the lamp unit.
LightingBlinking in red
It has exceed the replace-ment time of the lamp unit and the projector is turned off automatically.
 fThe indicator blinks when the usage time of the lamp unit reaches  6 600 hours (when [Lamp control] is set to  [  (Eco 1)]).
BlinkingOff
The power cord is plugged 
and the lamp is turned off. 
[Power management] is set 
to [Ready].
----
Orange
LightingOff
The projector detects an 
abnormal condition and 
cannot be turned on. 
(Warning)
--
 fIf the projector is turned off, unplug the AC power cord and contact the dealer.
LightingLighting
There is a problem in the 
contrast shutter circuit for 
iris. (Warning)
--
 fTurn off the projector,  unplug the AC power cord and contact the dealer.
BlinkingOff
Internal temperature is 
high. (Warning)
When the internal 
temperature rises further 
and the air filter warning 
icon  *1 
is displayed on the 
screen, after a while the 
projector can be turned off 
automatically.
 fIs the air intake/exhaust port blocked? fIs the room temperature high? fIs the air filter unit clogged?
 fRemove any objects that are blocking the air intake/ exhaust port. fInstall the projector in a location with an ambient temperature of  5 °C (41 °F) to 40 °C (104 °F). fDo not use the projector at high altitudes of  2 700 m (8 858') or higher above sea level. fClean the air filter unit or replace it. 
*1  Regardless of the time which is set in [Expand] → [Filter counter], the air filter warning icon  is displayed 
due to the internal temperature rising, and it will be displayed 10 seco\
nds every 5 minutes if the temperature does not go 
down.
Note
 fIf the warning indicator  persists to light or blink after taking these measurements such \
as turn off the projector, 
unplug the power cord, please contact your dealer for repair services. 
 fIf the power indicator  persists to light or blink in orange after taking these measurements such as 
turn off the projector, unplug the power cord, please contact your dealer for repair services.\
 
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Maintenance/replacement
Before performing maintenance/replacement
 fWhen you perform maintenance or replacement of the parts, make sure to t\
urn off the power and disconnect the power plug 
from the wall outlet. (x page 36)
 fBe sure to observe the procedure “Powering Off the Projector” (x page 36) when performing power supply operation.
Maintenance
Outer Case
Wipe off dirt and dust using a soft dry cloth.
 fIf the dirt is persistent, soak the cloth with water and wring it thorou\
ghly before wiping. Dry off the projector with a dry cloth.
 fDo not use benzene, thinner, or rubbing alcohol, other solvents, household cleaners. Using them may cause deterioration of 
the outer case.
 fWhen using chemical treated dusters, follow its instruction.
Front glass surface of the lens
Wipe off the dirt and dust off the front surface of the lens with soft clean cloth.
 fDo not use a cloth that has an abrasive surface or a cloth that is moist\
, oily, or covered with dust.
 fDo not use excessive force when wiping the lens as it is fragile.
Attention
 fThe lens is made of glass. Impacts or excessive force when wiping may scratch its surface. 
Please handle with care.
Air filter unit
Perform maintenance of the air filter in the following cases.
 fIf the time which is set in [Expand] menu → [Filter counter] is elapsed, the filter warning icon  will be 
displayed. 
 fIf the air filter is clogged with dust, the power indicator  blinks in orange, or the filter warning icon will 
 be displayed and after a while the projector is turned off automatically.
Attention
 fMake sure to turn off the power before performing maintenance on the air filter unit.
 fMake sure that the projector is stable, and perform the maintenance in a\
 safe place where the unit will not be damaged even 
if you drop the air filter unit.
Removing the air filter unit
Air filter 
cover
Tabs
Fig.1
Fig.2
Hook Hook
Air filter cover
Air filter unit
1) Remove the air filter cover. (Fig.1)
 fPull out the air filter cover from the hook of the projector while slightly pushing upward the tabs of the air filter cover and open it in the direction of the arrow in figure.
2) Remove the air filter unit.
 fThe air filter unit is fixed by the 3 hooks. Grasp the fibre of the air filter unit near to the cover side with one hook and then pull the air filter unit out from the air filter cover as arrow direction shown. (Fig.2)
 fAfter removing the air filter unit, remove foreign objects and dust from the air filter compartment and the projector ’s air intake port if there are any.
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Cleaning the air filter unit
Remove the air filter unit beforehand according to the previously described procedure in “Removing the air filter unit”.
1) Clean the air filter unit.
 fVacuum dirt and dust from the air filter unit.
 fDo not wash the air filter unit.
Attaching the air filter unit
1) Attach the new air filter unit to the air filter cover.
 fThere is a distinction between the inside and outside of the air filter unit. Align the red mark on the air filter unit with the red mark on the air filter cover. 
Air filter unit
Inside (Smooth fibre)
Outside (Cotton-like fibre) Air filter cover
Red mark
 fInsert the air filter unit to the side with the 2 hooks and then press the other side of the air filter unit into the cover side 
with 1 hook.
Hook Hook
Air filter cover
Air filter unit
Red mark
2) Attach the air filter cover to the projector.
 fPerform Step 1) in “Removing the air filter unit” (x page 86) in the reverse order.
 fMake sure that the air filter cover is closed tightly.
Resetting the filter counter
Be sure to reset the filter counter after cleaning the air filter unit.
1) Connect the power plug, press the power  button on the control panel or on the remote control.
2) Press the  button to display the main menu, then press as to select [Expand].
3) Press the  button on the control panel or the  butto\
n on the remote control, 
then press as to select [Filter counter].
4) Press the  button on the control panel or the  butto\
n on the remote control, 
then press as to select [Filter counter reset].
5) Press the  button on the control panel or the  butto\
n on the remote control.
 fThe [Filter counter reset ?] confirmation message is displayed. 
6) Press as to select [Yes], then press the  button on the control panel or the 
 button on the remote control.
 fThe [OK?] screen is displayed.
7) Press as to select [Yes], then press the  button on the control panel or the 
 button on the remote control.
 fThe filter usage time is 0 after reset.
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Attention
 fDo not disassemble the air filter unit.
 fWhen attaching the air filter unit, make sure that the projector is stable, and work in an environment that is safe, even in the 
event of the air filter unit dropping.
 fMake sure that the air filter unit is properly attached before using the projector. If it is not attached, the projector will suck in 
dirt and dust causing a malfunction.
Note
 fAfter cleaning the air filter, reset the filter counter. Otherwise, the warning icon  will appear on screen.
 fReplace the air filter unit with the new optional Replacement Filter Unit (Model No.: ET -RFL300) if it is damaged or if the dirt 
does not come off even after cleaning.
Replacing the unit
Lamp unit
The lamp unit is a consumable component. Refer to “When to replace the lamp unit” for details about the replacement cycle.
When purchasing the optional Replacement Lamp Unit (Model No.: ET-LAL500), consult your dealer.
Warning
Do not replace the lamp unit when it is hot. (Wait at least 1 hour after use.)
The inside of the cover can become very hot, take care to avoid burn inj\
uries.
Notes on the replacement of the lamp unit
 fA Phillips screwdriver is necessary when replacing the lamp unit. fSince the luminous lamp is made of glass, it may burst if dropped or hit\
 with a  hard object. Handle with care. fDo not disassemble or modify the lamp unit. fWhen replacing the lamp unit, be sure to hold it by the handle because i\
ts  surface is pointed and its shape is protruded. fThe lamp may rapture. Replace the lamp unit carefully so the glass fragm\
ents  of the lamp do not scatter. While attaching the projector to the ceiling, do not  work right under the lamp unit or do not conduct work while your face is\
 near  the lamp unit. fThe lamp contains mercury. When disposing of used lamp units, contact your  local authorities or dealer for correct methods of disposal.
Attention
 fPanasonic takes no responsibility for any damage or malfunction of the p\
roduct resulting from use of lamp units which are not manufactured by Panasonic. Use only specified lamp units.
Note
 fThe model numbers of accessories and optional accessories are subject to\
 change without prior notice.
When to replace the lamp unit
The lamp unit is a consumable component. Since its brightness gradually \
decreases over time, it is necessary to replace the lamp unit regularly. 
Please refer to the displayed time in [Lamp counter] of [Info.] about the usage time of lamp (x page 73).
The estimated duration before replacement is 6 000 hours which is displa\
yed in [Lamp counter], but the lamp may go off 
before the time above mentioned has elapsed depending on individual lamp\
 characteristics, usage conditions, and the 
installation environment. It is recommended that the Replacement lamp un\
it be prepared earlier.
The time which is displayed in [Lamp counter] is a total time when the r\
eal usage time in [  (Normal)], [  (Eco 1)] or [  
(Eco 2)] is converted to the runtime in [ (Eco 1)]. Please note that they are not displayed individually .
The displayed time in [Lamp counter] = ''Lamp runtime of [  (Normal)]” × 1.2 + “Lamp runtime of [  (Eco 1)]” 
+ “Lamp runtime of [  (Eco 2)]” × 0.75
The real usage time when the displayed time in [Lamp counter] is 6 000 h\
ours means, 
When [Lamp control] is constantly set to [  (Normal)] without switching to other modes = 5 000 hours
When [Lamp control] is constantly set to [  (Eco 1)] without switching to other modes = 6 000 hours
When [Lamp control] is constantly set to [  (Eco 2)] without switching to other modes = 8 000 hours
If you continue to use the lamp unit after the displayed time in [Lamp c\
ounter] 6 600 hours has elapsed, the lamp turns off 
automatically at approximately 10 minutes after turning on the power, as it will cause malfunction of the projector.
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The displayed time in [Lamp counter]
On-screen display indicator
Over 5 700 hours less than 6 000 hours 
 fThe lamp replacement icon  is displayed for 10 seconds. If you press any button within 10 seconds, the icon disappears. fThe lamp replacement icon  will display for 4 seconds on the screen after switching the input source or turning on the projector.
--
Over 6 000 hours less than 6 600 hours 
 fThe lamp replacement warning icon  is displayed for 10 seconds. If you press any button within 10 seconds, the icon disappears. fThe lamp replacement warning icon  will display for 4 seconds on the screen after switching the input source or turning on the projector. 
Lighting in red. (The indicator will not light in the standby mode)
Over 6 600 hours
 fThe lamp replacement warning icon  is displayed for 10 seconds. If you press any button within 10 seconds, the icon disappears. fThe lamp replacement warning icon  will display for 4 seconds on the screen after switching the input source or turning on the projector. 
 fThe lamp automatically turns off at approximately 10 
minutes after turning on the power.
Blinking in red. (The indicator will not light in the standby mode)
Note
 fThe lamp replacement icon or lamp replacement warning icon will not be displayed when during “Freeze” or “AV mute”.
 fThe usage period of 6 000 hours which is displayed in [Lamp counter] is \
a rough estimate and is not guaranteed.
Replacing the Lamp unit
Attention
 fWhen the projector is mounted on a ceiling, do not work with your face c\
lose to the projector.
 fDo not remove or loosen the screws other than specified ones when replacing the lamp unit.
 fMake sure to attach the lamp unit and the lamp cover securely.
1) Turn off the power by following the procedure in “Powering Off the Projector” (x page 36). Remove 
the AC power plug from the wall outlet.
 fWait at least 1 hour and make sure the lamp unit and surroundings are coo\
l.
2) Use a Phillips screwdriver to loosen the lamp cover fixing screw (×1\
) until it turns freely and remove 
the lamp cover.
 fRemove the lamp cover by pulling it slowly toward the direction of the arrow as the above figure shown.
3) Use a Phillips screwdriver to loosen the three lamp unit fixing screws (\
×3) until they turn freely.
4) Hold the used lamp unit by its handles, and pull it gently from the proj\
ector.
5) Insert the new lamp unit in correct direction. Tighten the three lamp unit fixing screws (×3) securely 
with a Phillips screwdriver.
 fWhen you experience difficulty in installing the lamp unit, remove it and try again. If you use force to install the lamp 
unit, the connector may be damaged.
6) Attach the lamp cover. Tighten the lamp cover fixing screw (×1) securely with a Phillips sc\
rewdriver.
 fPerform step 2) in reverse direction to attach the lamp cover.
Lamp cover
Lamp cover 
fixing screwHandles
Lamp 
unit fixing 
screws
AC IN 
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Resetting the lamp counter
Be sure to reset the lamp counter after replacing the lamp unit.
1) Connect the power plug, press the power  button on the control panel or on the remote control.
2) While pressing the ▲ button on the control panel, press and hold the  button on the control panel for 8 seconds or more.
 fThe lamp counter will be reset to 0. (At this time, there is displaying nothing.)
3) Press the  button on the remote control.
 fThe [Info.] screen is displayed.
 fTo make sure that the display of the [Lamp counter] is reset to [0 H].
 fPlease try step 2) again if the lamp counter has not been reset.
Air filter unit
When the dust remains after cleaning, the filter replacement timing has come.
The Replacement Filter Unit (Model No.: ET-RFL300) is an optional accessory. To purchase the product, consult your dealer.
Replacing the air filter unit
Attention
 fMake sure to turn off the power before replacing the air filter unit.
 fMake sure that the projector is stable, and perform the replacement in a\
 safe place where the unit will not be damaged even 
if you drop the air filter unit.
1) Remove the air filter cover. 
 fRefer to “Removing the air filter unit” (x page 86). 
2) Remove the air filter unit.
 fRefer to “Removing the air filter unit” (x page 86). 
3) Attach the optional Replacement Filter Unit (Model No.: ET -RFL300) to the air filter cover.
 fRefer to“Attaching the air filter unit” (x page 87).
4) Attach the air filter cover to the projector.
 fRefer to“Attaching the air filter unit” (x page 87).
5) Reset the filter counter.
 fRefer to “Resetting the filter counter” (x page 87).
Attention
 fWhen using the projector, be sure to attach the air filter unit. If it is not attached, the projector will suck in dirt and dust 
causing a malfunction.
 fThe air filter unit to be replaced should be an unused product.
Note
 fThe replacement cycle of the air filter unit varies greatly depending on the usage environment.
 fAfter replacing the air filter, reset the filter counter. Otherwise, the warning icon  will appear on screen.
Chapter 5   Maintenance - Maintenance/replacement