Panasonic PT-LC56U User Manual

Page of 69
E
NGLISH
-53
Care
and
m
aintenance
52-E
NGLISH
Before calling for service
Before calling for service, check the following points.
Problem
Possible cause
Page
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 remote
control unit
does not
operate.
The buttons on
the projector do
not function.
B The power cord may not be connected.
B The MAIN POWER switch is turned off.
B The main power supply is not being supplied to the
wall outlet.
B TEMP indicator is illuminated or flashing. 
B LAMP indicator is illuminated or flashing. 
B The lamp unit cover has not been securely
installed.
B The video signal input source may not be
connected properly.
B The input selection setting may not be correct. 
B The BRIGHT adjustment setting may be at the
minimum possible setting.
B The shutter function may be in use.
B The lens cover may still be attached to the lens.
B The lens focus may not have been set correctly. 
B The projector may not be at the correct distance
from the screen.
B The lens may be dirty.
B The projector may be tilted too much. 
B COLOR or TINT adjustment may be incorrect. 
B The input source which is connected to the
projector may not be adjusted correctly.
B The audio signal source may not be connected
properly.
B The volume adjustment may be at the lowest
possible setting. 
B The battery may be weak.
B The battery may not be inserted correctly.
B The remote control signal receptor on the projector
may be obstructed.
B The remote control unit may be out of the
operation range.
B The CONTROL KEY may be set to “OFF”. 
In order to set the CONTROL KEY to “ON” without
using the remote control unit, keep holding down
the ENTER button on the projector and press the
MENU button for more than 2 seconds. It will then
be turned ON.


47
48
23
36
27
23
18
18
36
28,
31
21
21
21
44
Press the ENTER button to
display the OPTION2 screen,
and then use the 
and G
buttons to select LAMP
RUNTIME.
Press and hold the ENTER
button for approximately 3
seconds.
The “LAMP RUNTIME” will
change to “TIME RESET
[POWER OFF]”.
Turn off the power.
This will reset the cumulative
usage time for the lamp unit to
zero.
Refer to page 24 for details on
how to turn off the power.
Install the lamp unit cover, and
then use a Phillips screwdriver
to securely tighten the lamp
unit cover fixing screws.
Insert the power cord plug into
the wall outlet and then press
the MAIN POWER switch.
Press the POWER button so
that a picture is projected onto
the screen.
Press the MENU button to
display the MAIN MENU
screen, and then press the 
F
and buttons to move the
cursor to select “OPTION2”.
              M E N U
K E Y S T O N E
P I C T U R E
P O S I T I O N
I N D E X   W I N D O W
S H U T T E R
V O L U M E
L A N G U A G E
O P T I O N 1
O P T I O N 2
S E C U R I T Y
S E L E C T     E N T E R     E X I T
              O P T I O N 2
B A C K   C O L O R           B L U E
F R O N T / R E A R         F R O N T
D E S K / C E I L I N G       D E S K
F A N   C O N T R O L     S T A N D A R D
L A M P   P O W E R           H I G H
L A M P   R U N T I M E     1 8 2 0 H
F U N C   1                 I N D E X
C O N T R O L   K E Y           O N
A U T O   P O W . O F F   D I S A B L E
    S E L E C T                   R E T R N
              O P T I O N 2
B A C K   C O L O R           B L U E
F R O N T / R E A R         F R O N T
D E S K / C E I L I N G       D E S K
F A N   C O N T R O L     S T A N D A R D
L A M P   P O W E R           H I G H
T I M E   R E S E T   [ P O W E R   O F F ]
F U N C   1                 I N D E X
C O N T R O L   K E Y           O N
A U T O   P O W . O F F   D I S A B L E
    S E L E C T                   R E T R N
NOTE:
B Be sure to install the lamp unit
and the lamp unit cover securely.
If they are not securely installed,
it may cause the protection
circuit to operate so that the
power cannot be turned on.
NOTE:
BIf 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,
unplug the power cord from the
electrical outlet, and check that
the lamp unit and the lamp unit
cover are securely installed.
Then turn the MAIN POWER
switch back on.
NOTE:
B If the MENU button is pressed,
the lamp time resetting screen
will be cancelled.