Panasonic CT 34WX50 - Manual (Page 70)

69
Troubleshooting
During normal broadcast (VHF/UHF)
Symptoms
Power does not turn ON
Remote control does not
function
Image shakes
Image is not clear
Color patches or no color
Image appears doubled or
tripled.
Spots appear in images,
images shake, or color patches
appear in the four corners.
When the TV set is turned on
in a dark room, the outer edges
o f t h e s c r e e n s p a r k
momentarily.
Unclear or overly bright colors
on parts of the screen
Left and right ends of the
screen, columns and frames
appear curved.
A black stripe appears for a
m o m e n t w h e n c h a n g i n g
channels using the VCR.
D u r i n g P a n a s o n i c A U TO
m o d e , t h e s c r e e n s i z e
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.
A clicking and buzzing sound
is made when the TV is turned
on.
Checks
•
Is the power plug plugged in?
•
If the power does not turn on using the remote, check if the TV set is
turned on.
•
Are the batteries dead or inserted incorrectly?
•
Is the remote control sensor in direct light of florescent lamps or other
strong sources of light?
•
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?
•
Is the antenna facing the right direction?
•
Is the antenna receiving any signals reflected off mountains or buildings.
•
Is the TV being affected by geomagnetism or other interference
(automobiles and trains, high voltage power lines, neon, motors,
magnetic steel frames, steel windows, etc.)? Turn off the power for
approx. 20 min. and turn back on or change positioning of the TV set. If
this does not fix the problem, the TV needs magnetic shielding.
•
Due to the internal structure of the CRT set, some parts of the fluorescent
components spark, (created by high voltage) when the TV set is turned
on. This is not a malfunction.
•
When white is displayed on a certain part of the screen for a while, the
white portion tends to tint with color. When the bright image disappears,
the screen will return to its normal color.
•
Receiving broadcast or changes in brightness on the screen can cause
curves on the screen.
•
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.
•
This is the sound of the Geomagnetic correction function creating a
beautiful color picture. This is not a malfunction.
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