Panasonic TU-PTA500U Operating Instructions Manual page 61

Troubleshooting
During normal broadcast (VHF / UHF)
Symptoms Checks
Power does not turn ON
• Is the power plug plugged in'_
• If the power does not turn on using the remote, check il this unit _s
turned on
• Confirm that the Wide Plasma Display _s connected to the rear
DISPLAY OUT terminal (D-SUB) of the tuner using the dedicated
display cable, The tuner will not turn ON il connected using a
different cable
Image shakes
Image _snot clear
Color patches or no color.
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15
10
Remote control does not • Are the batteries dead or inserted _ncorrectly ? 6
function. • Is the remote control sensor in direct light of florescent lamps or
other strong sources of light?
8.9
Image appears doubled or
tripled.
A black stripe appears for a
moment when changing
channels using the VCR.
During Panasonic AUTO
mode, the screen size
sometimes changes.
Images disappear at the top
and bottom of the screen.
During ZOOM or JUST
modes, the image is cut off at
the top and bottom.
Channel number remains
displayed.
• Is the antenna or antenna cable old, broken or shorted '2
• Is the antenna cable connected properly?
• When using a VCR and selecting channels on this unit, is the TVNIDEQ
mode for the VCR set to this unit?
• Is the antenna facing the right direction?
• Is the antenna recew_ng any signals reflected oft mountains or
buildings.
• The image distorts when channels are changed
• Depending on the program content, even when the screen is
supposed to automatically zoom, if the beginning scene is dark, it
may take a while for it to zoom.
• During a 4:3 screen, if the top and bottom of the image is dark, it may
zoom.
• 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.
• Press the INFO/RECALL button.
During VIDEO input, channel number is displayed until an image =s
displayed.
• If there are no problem with image or sound, it is the sound of the
cabinet shrinking due to room temperature changes. This is not a
malfunction
• This is normal To ensure reliable operation, do not block ventilation
opennngs Do not place objects on the top cover that could become
damaged
• Never cover up the vent holes. Leave at least 4 inches (10 cm) of
space above and around the ma_n unit
This unit set makes a
cracking sound.
The top cover may become
warm.
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