Panasonic PT-L780E - Manual (Page 34)

E NGLISH -67
Other
s
66-E NGLISH
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
B The batteries may be weak.
B The batteries may not be inserted correctly. (Refer to
page 20.)
B The remote control signal receptor on the projector may
be obstructed. (Refer to page 20.)
B The remote control unit may be out of the operation
range. (Refer to page 20.)
B Press and hold the Power button on the remote control
unit or the projector for more than 5 seconds to turn the
power off and back on again. At this time, the projector
will turn on and go to the standby condition.
B The CONTROL KEY may be set to “OFF”. (Refer to
page 46.)
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.
B Press and hold the Power button on the remote control
unit or the projector for more than 5 seconds to turn the
power off and back on again. At this time, the projector
will turn on and go to the standby condition.
B The signal format (TV system) may not be set correctly.
(Refer to page 37.)
B There may be a problem with the video tape or other
signal source.
B A signal which is not compatible with the projector may
be being input. (Refer to page 61.)
B If you select SXGA60 or SXGA60+ type RGB signals,
the pictures may not be projected correctly. If this
happens, press the AUTO SETUP button.
B The cable may be too long.
B The external video output for the laptop computer may
not be set correctly.
(You may be able to change the external output settings
by pressing the [Fn]+[F3] or [Fn]+[F10] keys
simultaneously. The actual method varies depending on
the type of computer, so refer to the documentation
provided with your computer for further details.)
B If an RGB input indicator (Refer to page 14) is turned off,
the video signals may not be output from the computer.
B RGB2 SELECT in the OPTION menu is set to OUTPUT
when the signals are input to RGB2 IN / RGB OUT
connector. (Refer to page 44.)
Before calling for service
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.
B The mains lead may not be connected.
B The MAIN POWER switch is turned off.
B The main power supply is not being supplied to the
mains socket.
B TEMP indicator is illuminated or flashing. (Refer to page
58.)
B LAMP indicator is illuminated or flashing. (Refer to page
59.)
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. (Refer to
page 28.)
B The BRIGHT adjustment setting may be at the minimum
possible setting. (Refer to page 37.)
B The shutter function may be in use. (Refer to page 44.)
B The lens cover may still be attached to the lens.
B The lens focus may not have been set correctly. (Refer
to pages 29 and 48.)
B The projector may not be at the correct distance from the
screen. (Refer to pages 27 and 50.)
B The lens may be dirty.
B The projector may be tilted too much. (Refer to page 26.)
B COLOR or TINT adjustment may be incorrect. (Refer to
page 37.)
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. (Refer to pages 15 and 43.)
B A cable may be connected to the AUDIO OUT jack.
B The MUTE function may be active (page 43.)