Troubleshooting - Panasonic PT-43LC14 Operating Instructions Manual

Troubleshooting

Before you call for service, determine the symptoms and make a few simple checks as
shown below.
Symptoms
Power does not turn ON.
No picture even if the power is turned ON.
LAMP indicator blinks red.
The power turns
OFF.
Remote control does not function.
Image shakes.
Image is not clear.
Color patches or no color.
Image appears doubled or tripled.
Images disappear at the top and bottom of
the screen.
During ZOOM modes, the image is cut off at
the top and bottom.
Some parts of the screen are always lit while
others do not light up.
Some parts of the screen do not light up.
Fan is operating even though TV Power is
OFF.
An OSD instructing to replace the lamp is
displayed. (The LAMP indicator is lit red.)
Relighting the lamp when it is hot makes a
sound.
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.
An OSD advising "AIR FILTER CLEANING..."
is displayed.
When a bright picture is displayed, stain-like
blotches appear.
For assistance, please call : 1-888-VIEW PTV(843-9788) or, contact us via the web at: http://www.panasonic.com/contactinfo
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• Is the power plug plugged in?
• Please replace lamp with a new one. Please consult your nearest
dealer, if not still repaired.
The POWER indicator
flashes orange twice • The lamp cover is ajar. Firmly replace the cover.
every 5 seconds.
The TEMP indicator • Check whether or not the vents are clogged.
flashes 2 or 4 times
• Is the set being used in a location that is hot?
every 5 seconds.
The TEMP indicator
flashes 5 times every • Please consult your nearest dealer.
5 seconds.
Power turns off while
another indicator is • Please consult your nearest dealer.
flashing.
• 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?
• Is the antenna or antenna cable old, broken or shorted?
• Is the antenna cable connected properly?
• Sudden changes in ambient temperature may cause condensation
in the internal optics. Condensation should disappear after Power
has been ON for a while.
• When using a VCR and selecting channels on the TV, is the
TV/VIDEO mode for the VCR set to TV?
• Is the antenna facing the right direction?
• Is the antenna receiving any signals reflected off of mountains or
buildings.
• When using 16:9 image software, there is no picture at the top and
bottom of the screen (cinema vision size software, etc.).
• Has the screen position been changed? If so, adjust screen
positioning.
• This is a characteristic of the LCD panel and not a malfunction.
• This is because the cooling fan is operating. The fan will stop after
about 1 minute.
• Replace lamp with a new one.
• This is a characteristic of the lamp and not a malfunction.
• 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.
• Please consult your nearest dealer.
• This can occur if the ambient temperature changes suddenly. Try
gently rubbing the stained areas with a soft cloth.
Checks Page
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7
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75
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12-14
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32-33,
40-41
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