Troubleshooting - Panasonic TH-42PW3 Operating Instructions Manual

l Troubleshooting
Before call for service, determine the symptoms and make a few simple checks as shown below. ]
you
Symptoms
Picture
Interface
Normal Picture
No Picture
No Picture
No Color
Sound
\
Noisy Sound
\
No Sound
\
No Sound
\
Normal Sound
Normal Sound
Checks
Electrical Appliances
Cars/Motomycles
Fluorescent light
Volume
(Check whether the mute function has been
activated on the remote control.)
Not plugged into AC outlet
Not switched on
PICTURE and BIGHTNESS/Volume setting
(Check by pushing the power switch or
stand-by button on the remote control.)
If a signal with a non-applicable color system
format, or frequency is input, only the input
terminal indication is displayed.
Color controls set at minimum level.
Color system (see page 28, 29)
Plasma Display panel
Symptoms Check
Some parts of the screen do
not light up
I
J
I
After-images appear
The plasma display panel is manufactured using an extremely high level of
precision technology, however, sometimes some parts of the screen may be
missing picture elements or have luminous spots. This is not a malfunction.
Do not allow a still picture to be displayed for an extended period, as this can
cause a permanent after-image to remain on the Wide Plasma Display.
Examples of still pictures include Iogos, video games, computer images, teletext
and images displayed in 4:3 mode.
33