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...

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....

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...

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...

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...

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...

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...

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...

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...

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 
:...