Panasonic Projector PT-TW231RU User Manual

							LAMP and WARNING Indicators
ENGLISH - 61
Maintenance
LAMP and WARNING Indicators
Managing the indicated problems
If a problem should occur inside the projector, the ,  and/or  
indicators will inform you. Manage the indicated problems as follow.CAUTION
Before you take a remedial measure, follow the procedure of switching the power off indicated in “Turning Off the Projector”. 
 
z
(
Æpage 30)
If multiple indicators light or blink, verify the status of the projecto\
r by looking at each indicator.
 
z
Note
Confirm the status of the power indicated on the <
 
zON(G)/STANDBY(R)> indicator.
 
JLAMP indicator
Indicator
Lighting in yellow
Status The projection lamp reaches its end of life.
Check Is there a Lamp replacement icon appears on the screen?
Remedy Replace the lamp unit. (
Æpage 65)
Note
Contact your dealer for repair services when  indicator persists t\
o light after taking these measurements.
 
z
 
JWARNING indicator
Indicator
Lights in red. Blinks in red.
Status The projector detects an abnormal 
condition and cannot be turned 
on.  The temperature inside the projector is abnormally high. 
The projector cannot be turned on. And the  indicator also blinks in red.
Check Unplug the AC power cord 
and plug it again to turn on the 
projector.  - Did you provide appropriate space for the projector to be   
  ventilated? Check the installing condition to see if the air  
  vents of the projector are not blocked.
- Has the projector been installed near an Air-
  Conditioning/ Heating Duct or Vent? 
- Is the filter clean? 
Remedy If the projector is turned off again, 
unplug the AC power cord and 
contact the dealer or the service 
center for service and checkup.  - Provide good installing condition to your projector.
- Move the installation of the projector away from the duct    
  or vent.
- Replace air filter unit.
Note
If  indicator persists to light or blink after taking these measurem\
ents, please contact your dealer for repair 
 
z
services. Do not leave the projector on. It may cause an electric shock or a fire hazard.
The projector detects an abnormal condition and cannot be turned on. Unp\
lug the AC power cord and plug it again to turn 
 
z
on the projector. If the projector is turned off again, unplug the AC power cord and contact the dealer or the service center 
for service and checkup. Do not leave the projector on. It may cause an electric shock or a fire hazard. 
						

							62 - ENGLISH
Maintenance
Replacement
Before replacing the unit
When you perform maintenance or replacement of the parts, make sure to t\
urn off the power and disconnect  
z
the power plug from the wall outlet. (Æpages 26, 30)
Be sure to observe the procedure “Turing Off the Projector” (
 
zÆpage 30) when performing power supply 
operation.
Maintenance
Outer Case 
J
Wipe off dirt and dust using a soft dry cloth.
If the dirt is persistent, soak the cloth with water and wring it thorou\
ghly before wiping. Dry off the projector 
 
z
with a dry cloth.
Do not use benzene, thinner, or rubbing alcohol, other solvents, household cleaners, or chemical tr\
eated 
 
z
dusters. Using them may cause deterioration of the outer case.
Front glass surface of the lens 
J
Wipe off the dirt and dust off the front surface of the lens with soft clean cloth.
Do not use a cloth that has an abrasive surface or a cloth that is moist\
, oily, or covered with dust.
 
z
Do not use excessive force when wiping the lens as it is fragile. 
z
Attention
The lens is made of glass. Impacts or excessive force when wiping may sc\
ratch its surface.  
 
z
Please handle with care. 
						

							Replacement
ENGLISH - 63
Maintenance
Replacing the unit
Air filter unit 
J
Filter prevents dust from accumulating on the optical elements inside the projector
. Should the filter become  
clogged with dust particles, it will reduce cooling fans’ effectiveness and may result in internal heat buildup   
and adversely affect the life of the projector. 
If a “Filter warning” icon appears on the screen, replace the air filter unit immediately . Replace it with the 
separately sold ET-RFT100 replacement filter unit. Consult your supplier when you purchase a replacement filter.
Replacement of the air filter unit 
J
Remove the air filter cover.
1  ) 
Clean up the dust on the projector and around    
z
the air vents. Press and hold the right-hand   
corner of the filter cover, and then press  
◄ leftwards on the filter cover to release the  
latch and open the filter cover .
Remove the air filter unit.
2  ) 
Put your fingers on the filter tab and then pull    
z
the air filter unit out of the projector.
Insert a new air filter unit.
3  ) 
Insert the new filter unit completely by following    
z
the instructions for step 2 in the reverse order.  
Ensure that the area with “TOP” mark is in an  
upward direction.
Install the air filter cover.
4  ) 
Insert the air filter unit cover by following the    
z
instructions for step 1 in the reverse order. 
Resetting the Filter Counter 
J
Be sure to reset the Filter counter after replacing the filter.(Æpage 59" 
Filter counter reset ") 
Attention Turn off the power before you replace the air filter unit.
 
z
When attaching the air filter unit, make sure that the projector is stable, and work in an environment that is  
z
safe, even in the event of the air filter unit dropping.
Do not operate the projector with the air filter unit removed. Dust may accumulate on the optical elements 
 
z
degrading picture quality.
Do not put anything into the air vents. Doing so may result in malfuncti\
on of the projector.
 
z
Do not wash the air filter unit with water or any other liquid matter. Otherwise the air filter unit may be damaged. 
z
 
Latch
Filter cover
Pull out and 
remove.
TOP mark 
						

							Replacement
64 - ENGLISH
Maintenance
 
JLamp unit
The lamp unit is a consumable component. You can check the total usage time using Lamp runtime in the 
Information menu on page 60.
It is recommended to ask an authorized engineer to replace the lamp unit\
. Contact your dealer.
Consult your dealer to purchase a replacement lamp unit (ET-LAT100).
CAUTION:
■ 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 
J
The luminous source of the lamp is made of glass and may burst  
z
if you hit it against a hard surface or drop it. Please handle with 
care.
A Phillips screwdriver is required for replacement of the lamp unit.
 
z
When replacing the lamp unit, be sure to hold it by the handle. 
z
When replacing the lamp because it has stopped illuminating,  
z
there is a possibility that the lamp may be broken. If replacing the 
lamp of a projector which has been installed on the ceiling, you 
should always assume that the lamp is broken, and you should 
stand to the side of the lamp cover, not underneath it. Remove 
the lamp cover gently. Small pieces of glass may fall out when 
the lamp cover is opened. If pieces of glass get into your eyes or mouth\
, seek medical advice immediately.
The lamp contains mercury. Consult your local municipality or your dealer about correct disposal \
of used 
 
z
lamp units.
Attention
Do not use other than designated lamp units.
 
z
The part numbers of accessories and separately sold components are subje\
ct to change without notice.
 
z
When to replace the lamp unit 
J
The lamp unit is a consumable component. Brightness decreases according \
to duration of usage, so 
periodical replacement of the lamp unit is necessary.
When the projection lamp of the projector reaches its end of life, the L\
amp replacement icon appears on the 
screen and  indicator lights yellow. Replace the lamp with a new one promptly.
Lamp runtime On screen
Lamp replacement icon LAMP indicator
Over 3000 hours *
Over 3200 hours *The message is displayed for 10 seconds. If 
you press any button within the 10 seconds, the 
message disappears.
If the power is turned on without replacing the lamp, 
the power automatically turns off after approximately 
ten minutes to prevent the malfunction of the 
projector.
Lights in yellow (even in  
stand-by mode).
* 3200 hours of use is a rough guideline, but is not a guarantee. The lamp runtime differs depending on the setting 
of "Lamp power" menu.
NoteThe Lamp replacement icon will not appear when the [Display] function is\
 set to [Off] (
 
z
Æpage 53), or during 
"Freeze" (
Æpage 33), or "AV mute" (Æpage 34). 
						

							Replacement
ENGLISH - 65
Maintenance
 
JReplacing the Lamp unit
CAUTION:
When the projector is mounted on a ceiling, do not work with your face c\
lose to the projector.
 
z
Attach the lamp unit and the lamp cover securely. 
z
When you experience difficulty in installing the lamp, remove it and try again. If you use force to install the  
z
lamp, the connector may be damaged.
Turn off the Power by following the   
1  ) 
procedure in "Turning Off the Projector"  
(
Æpage 28).Unplug the AC power cord.   
Wait at least 1 hour and make sure  
the lamp unit and surroundings are cool.
Use a Phillips screwdriver to loosen   
2  ) 
the lamp cover fixing screw and   
remove the lamp cover.
Remove the lamp cover by pulling it slowly toward the  
z
direction of the arrow.
Use a Phillips screwdriver to loosen the 
3  ) 
three lamp unit fixing screws until the 
screws turn freely. Hold the used lamp 
unit by its handles, and pull it gently from 
the projector.
Insert the new lamp unit in correct 
4  ) 
direction. Tighten the three lamp unit 
fixing screws securely with a Phillips 
screwdriver
Attach the lamp cover, and tighten the 
5  ) 
lamp cover fixing screw securely with a 
Phillips screwdriver.
Attach the lamp cover by pushing it slowly  
z
opposite the direction of the arrow.
 
JResetting the Lamp Runtime
Be sure to reset the [Lamp runtime] after replacing the lamp. (Æpage 58 "
Lamp runtime reset ")
�
Lamp cover
Lamp cover
fixing screw
Handles
Lamp unit
Lamp unit fixing screws 
						

							Replacement
66 - ENGLISH
Maintenance
Attaching the Lens Cover
When moving this projector or while not using it over an extended period\
 of time, attach the lens cover.
Attach the lens cover according to the following procedures.
Thread the string through the hole on the              
1  ) 
lens cover and then tie a knot in the string              
 to secure it in place.
To pass the other end of the string into                
2  ) 
the hole on the bottom of the projector                
and pull at it.
Attaching the Cable Holder and Ferrite Core
Attach the ferrite core to the USB cable 
1  ) 
as shown in the figure.
Stick the adhesive cable holder 
2  ) 
(supplied) on the bottom of the 
projector and store the USB cable in 
the holder to prevent the cable from 
blocking communication between the 
infrared remote receiver and remote 
control as show in the figure.
Attention
The USB cable with ferrite core must be used for RF 
 
z
interference suppression.
Infrared remote receiver
Remote control operating range
Interactive camera
Cable holder (supplied)
USB cable 
(supplied)
150 mm
Ferrite core 
						

							ENGLISH - 67
Maintenance
Troubleshooting
Please check following points. For details, see the corresponding pages.\
ProblemCauseReference 
page
Power does not turn 
on. The power cord may not be connected.
 
z—
No electric supply is at the wall outlet.
 
z—
The circuit breakers have tripped.
 
z—
I
 
zs the  indicator,  indicator, or 
 indicator lit or blinking? 27, 61
The lamp cover has not been securely installed.
 
z—
No picture appears. The video signal input source may not be connected to a terminal 
 
z
properly. 25
The input selection setting may not be correct.
 
z32
The [Brightness] adjustment setting may be at the minimum setting.
 
z—
The input source which is connected to the projector may have a 
 
z
problem. —
The [AV mute] function may be in use.
 
z34
The picture is fuzzy. The lens focus may not have been set correctly.
 
z31
The projector may not be at the correct distance from the screen.
 
z22
The lens may be dirty.
 
z14
The projector may be tilted too much.
 
z—
The color is pale or 
grayish. [Color] or [Tint] adjustment may be incorrect.
 
z45
The input source which is connected to the projector may not be 
 
z
adjusted correctly. —
RGB cable is damaged.
 
z—
No sound from the 
internal speaker The input terminals may not have been correctly connected.
 
z25
The volume may have been set to the minimum level.
 
z34
The [AV mute] function may have been turned on.
 
z34
When the AUDIO OUT is plugged-in, the projector's built-in speaker is 
 
z
not available . 20
The [Mute] function may have been turned on.
 
z35
The remote control 
does not operate. The batteries may be weak.
 
z—
The batteries may not have been inserted correctly.
 
z21
The remote control signal receptor on the projector may be obstructed.
 
z17
The remote control unit may be out of the operation range.
 
z17
Strong light such as fluorescent shine onto the signal receptor.
 
z17
When different codes are set on the projector and on the remote contro
 
z
l.57
The control buttons 
of the projector do 
not operate. The control panel is not available if the control panel is locked at [Ke\
y 
 
z
lock] under [Security] of [Setting] section. 57
The picture does not 
display correctly. There may be a problem with the VCR or other signal source.
 
z
A signal which is not compatible with the projector is being input. 
z
—
—
Picture from a 
computer does not 
appear. The cable may be longer than the optional cable.
 
z—
The external video output from a laptop computer may not be correct. 
 
z— 
						

							Troubleshooting
68 - ENGLISH
Maintenance
ProblemCauseReference 
page
Picture from a HDMI 
device does not 
appear or picture is 
not stable. Is the HDMI cable securely connected?
 
z25
Turn off the power of the projector and the connected devices. Then turn 
 
z
the power of the projector and the connected devices back on. —
Isn't unsupported signal cable connected?
 
z73
No sound is output 
from a HDMI device. Set the sound channel of the attached device to Linear PCM.
 
z—
If no audio signal is output during HDMI cable connection, connect the 
 
z
audio cable to COMPUTER/COMPONENT AUDIO IN terminal and set 
to "Computer" in "Sound" of "Setting" menu.  54
The image is 
distorted or runs off. Check [PC adj.] or [Screen] and adjust them.
 
z42, 48
The exclamation 
mark 
 appears on 
the screen. Your operation is invalid. Operate correctly.
 
z—
Note If the problem persists, after confirming the contents of the table, please consult your dealer .
 
z 
						

							ENGLISH - 69
Appendix
Technical Information
Serial terminal
The serial connector which is on the connector panel of the projector co\
nforms to the RS-232C interface 
specification, so that the projector can be controlled by a personal computer which is connected to this connector.
 
JConnection
 
JPin assignments and signal names
D-Sub 9-pin (male)
Outside view Pin No.
Signal name Contents
—NC
RXD Received data
TXDTransmitted data
—NC
GND Earth
—NC
—NC
—NC
—NC
 
JCommunication conditions
Signal level
RS-232C-compliant Character length8 bits
Sync. method Asynchronous Stop bit1 bit
Baud rate 19200 bps X parameterNone
Parity None S parameterNone
Note When [AMX D. D.] function is set to [On] under the [Network] menu, the B\
aud rate will change to 9600 bps 
 
z
automatically.
D-Sub 9-pin (female) D-Sub 9-pin (male)
Connecting terminals 
 
on projector
Communication cable Computer 
						

							Technical Information
70 - ENGLISH
Appendix
 
JBasic format
Transmission from the computer begins with STX, then the command, paramet\
er, and ETX are sent in this 
order. Add parameters according to the details of control.
STX
C1C2C3 : P1 P2Pn ETX
When sending commands without parameters, a colon (:) is not necessary\
.
: 

 
JBasic format (with sub command)
STX
C1C2C3 :  ETX
S1S2S3S4S5 EP1P2P3P4P5P6
When transmitting a command which does not need a parameter, the operation (E) and parameter are not 
: 

necessary.
End  
(1 byte)
Parameter  
(undefined length)
Colon 
 
(1 byte)
3 command 
characters   (3 bytes)
Start  
(1 byte)
Parameter (6 bytes)
Symbol “+” or “
-” (1 byte) and set value or 
adjustment value (5 bytes)
Operation (1 byte)
“=” (Value specified using parameter is set)
Same as basic format
Sub command (5 bytes)