Lamp Unit Replacement Procedure - Panasonic PT-L780NTU Operating Instructions Manual

On-screen display
Displayed for 30
seconds. Pressing any
More than 1 300 hours
button will clear the
display.
This display cannot be
cleared at all, no matter
More than 1 500 hours
which button is pressed.

Lamp unit replacement procedure

NOTE:
B If the lamp usage time has passed 1 500 hours (when LAMP POWER has
been set to "HIGH"), the projector will switch to standby mode after
approximately 10 minutes of operation. The steps ) to . on the next
page should thus be completed within 10 minutes.
# Turn off the MAIN POWER
switch according to the
procedure given in "Turning off
the power" on page 29, and
then disconnect the power
cord plug from the mains
socket and check that the area
around the lamp unit has
cooled down.
$ Use a Phillips screwdriver to
turn the air outlet port fixing
screws at the back of the
projector, and then open the air
outlet port.
Air outlet port
Air outlet port fixing screws
64
Lamp indicator warning
light
The projector will enter
Standby Mode and the
red indicator lamp will
illuminate.
% 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 projector.
Lamp unit fixing screws
Handle
& Insert the new lamp unit while
making sure that the direction
of insertion is correct, and then
use a Phillips screwdriver to
securely tighten the lamp unit
fixing screws.
' Close the air outlet port, and
then use a Phillips screwdriver
to securely tighten the air
outlet port fixing screws.
NOTE:
B Be sure to install the lamp unit
and the air outlet port securely. If
they are not securely installed, it
may cause the protection circuit
to operate so that the power
cannot be turned on.
( Insert the power cord plug into
the wall outlet and then press
the MAIN POWER switch.
NOTE:
B If the POWER indicator on the
projector does not illuminate red
when the MAIN POWER switch is
turned on, turn the MAIN POWER
switch off again and check that
the lamp unit and the air outlet
port are securely installed. Then
turn the MAIN POWER switch
back on.
) Press the POWER button so
that a picture is projected onto
the screen.
* Press the MENU button to
display the MENU screen, and
select "OPTION" by pressing
the I I or H H buttons.
+ Press the ENTER button and
select the "LAMP RUN TIME" by
pressing the F or G buttons.
, Press and hold the ENTER
button for approximately 3
seconds.
The "Lamp Time Reset" will be
displayed.
- Select "OK" by pressing the
I I or H H buttons and press the
ENTER button.
NOTE:
B If "CANCEL" is selected in step
- , the operation for resetting the
lamp time will be cancelled.
. Turn off the power.
This will reset the cumulative
usage time for the lamp unit to
zero.
Refer to steps % and & on page
29 for details on how to turn off
the power.
65