Panasonic PT 40LC12 User Manual

Before you call for service, determine the symptoms and make a few simple checks as shown
below.

• Is the power plug plugged in?

Power does not turn ON

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The power turns OFF

• Check whether or not the vents are clogged.
• Is the set being used in a location that is hot?

The POWER indicator flashes orange
twice every 5 seconds.

The TEMP indicator flashes 2 or 4
times every 5 seconds.

Power turns off while another indicator
is flashing.

• Please consult your nearest dealer.

• The lamp cover is ajar. Firmly replace the cover.

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12-14

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30,31,40,41

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60

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An OSD instructing to replace the lamp is
displayed. (The LAMP indicator is lit red.)

• Replace lamp with a new one.

Relighting the lamp when it is hot makes
a sound.

• This is a characteristic of the lamp and not a malfunction.

Leaving stationary images, such as still
video images, web pages, or filler bars
(used for NORMAL aspect mode), on-
screen for an extended period of time
can leave ghost images on the screen.

• This is a characteristic of the LCD panel and not a malfunction. Try

displaying constantly moving pictures which fill the entire screen, or
turn the power OFF for a while to return the screen to normal.

Fan is operating even though TV Power
is OFF.

• This is because the cooling fan is operating. The fan will stop

after about 1 minute.

Some parts of the screen are always lit
while others do not light up.
Some parts of the screen do not light up.

• This is a characteristic of the LCD panel and not a malfunction.

The projection display set makes a high
whistling sound when the power is ON.

• This is the sound of the internal starting UP. This is not a

malfunction.

During ZOOM modes, the image is cut off
at the top and bottom.

• Has the screen position been changed?

If so, adjust screen positioning.

Images disappear at the top and bottom of
the screen

• When using 16:9 image software, there is no picture at the top and

bottom of the screen (cinema vision size software, etc.).

Image appears doubled or tripled.

• Is the antenna facing the right direction?
• Is the antenna receiving any signals reflected off of mountains or

buildings.

Image shakes
Image is not clear
Color patches or no color

• Is the antenna or antenna cable old, broken or shorted?
• Is the antenna cable connected properly?
• When using a VCR and selecting channels on the TV, is the

TV/VIDEO mode for the VCR set to TV?

An OSD instructing to clean the filter is
displayed.

• After cleaning the filter, select YES.

• If the Lamp will not light after turning on the power 2 or 3 times, the

Lamp may be damaged. Please consult your nearest dealer.

Lamp does not light up.

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Remote control does not function

• Are the batteries dead or inserted incorrectly?
• Is the remote control sensor in direct light of fluorescent lamps or

other strong sources of light?

• Did you correctly set the remote control code?

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The TEMP indicator flashes 5 times
every 5 seconds.

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• Please clean the Air Filter.