Panasonic LCD Projector PT-L730NTU Operating Instructions

51
Others
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 flash and the projector pow\
er will
turn off.  The air filter should be cleaned every 100 hours of use,
depending on the location where the projector is being used.
Cleaning p rocedure
q Turn off the MAIN POWER
switch and disconnect the
power cord plug from the wall
outlet.
Turn off the MAIN POWER switch
according to the procedure...

52
Replacing the lamp unit
Warning
When replacing the lamp, allow it
to cool for at least one hour
before handling it.
•The lamp cover gets very hot, and
contact with it can cause burns.
Notes on replacing the
lamp unit
•The 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.
•After having removed the old
lamp, carelessly discarding it can
cause the lamp to burst. Dispose
of the lamp with the same care
that...

53
Others
Lamp unit replacement p rocedure
NOTE:
•  If the lamp usage time has passed 2 000 hours (when LAMP POWER has
been set to  “HIGH ”), the projector will switch to standby mode after
approximately 10 minutes of operation. The steps  \b to  !\f on the next page
should thus be completed within 10 minutes.
q Turn off the MAIN POWER
switch according to the
procedure given in “Turning off
the power” on page  28, and
then disconnect the power
cord plug from the wall outlet
and check that the area...

54
oPress the ENTER button and
select the  “LAMP RUN TIME ” by
pressing the  or  buttons.
!0 Press and hold the ENTER
button for approximately 3
seconds.
The  “Lamp Time Reset ” will be
displayed.
!1 Select  “OK ” by pressing the 
or  buttons and press the
ENTER button.
NOTE:
•   If  “CANCEL ” is selected in step
!0, the operation for resetting the
lamp time will be cancelled.
!\f Turn off the power.
This will reset the cumulative
usage time for the lamp unit to
zero.
Refer to steps  e and  r on page
28...

55
Others
About the RGB INPUT indicator
The RGB INPUT indicator can be used to check whether an RGB/YPBPR
signal is being input. Refer to the table below for details.
RGB INPUT
indicator status Power supply status
On (projecting)
Standby
A signal is being input to
either the RGB1 IN or
RGB2 IN connector. A signal is being input to
the connector selected
using the input select
buttons.
No signal is being input to
either the RGB1 IN or
RGB2 IN connector. No signal is being input to
the connector selected...

56
Before calling  for se rvice
Before calling for service, check the following points.
Problem   Possible cause
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 power cord may not be connected.
•   The MAIN POWER switch is turned off.
•   The main power supply is not being supplied to the
wall outlet.
•   TEMP indicator is illuminated or flashing. (Refer to
page  49.)
• LAMP indicator is illuminated or flashing. (Refer...

57
Others
The remote control
unit does not
operate.
The buttons on the
projector do not
function.
The picture does not
display correctly.
Picture from
computer does not
appear.
Problem   Possible cause
•  The batteries may be weak.
•   The batteries may not be inserted correctly. (Refer
to page  21.)
• The remote control signal receptor on the projector
may be obstructed. (Refer to page  21.)
• The remote control unit may be out of the operation
range. (Refer to page  21.)
• The CONTROL KEY may be set to...

58
Specifications
Power supply:  100 V–240 V ~, 50 Hz/60 Hz
Power consumption:  300 W (During standby (when fan is
stopped): Approx. 1.7 W)
[When the WEB STANDBY is set to  “ON ”:
Approx. 43 W (page  45)]
Amps: 3.5 A –1.5 A
LCD panel: Panel size (diagonal): 0.9 type (22.86 mm)
Aspect ratio: 4:3 (16:9 compatible)
Display method: 3 transparent LCD panels (RGB)
Drive method: Active matrix method
Pixels: 786 432 (1 024 x 768) x 3 panels
Lens: Manual zoom (1 - 1.3) / focus lens  F 1.7 - 2.2, f 28.7 mm - 36...

59
Others
MINI)
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 (for S-VIDEO/VIDEO):  0.5 V [rms] RCA pin jack x 2 (L-R)
AUDIO OUT:   Single-line 0.5 V [rms] M3 jack (Stereo
MINI) (Monitor output/stereo compatible)
0 V [rms] - 1.0 V [rms] (variable)
Serial connector:  D-sub 9p (female) RS-232C compatible
Cabinet:   Moulded plastic (ABS/PC)
Dimensions: Width:   245 mm (9-5/8˝)
Height:   118 mm (4-5/8˝)...

60
List of compatible signals
*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.
C   Picture cannot be projected.
*3  Signals with  “OK ” in the Resizing column can be set using the RESIZING
command in the PICTURE menu. (Refer to...