Panasonic PT 37P1 - Manual (Page 33)

Troubleshooting
Before you call for service, determine the symptoms and make a few simple checks as shown below.
Symptoms
Picture Sound
Checks
Interference Noisy Sound
Electrical Appliances
Cars/Motorcycles
Fluorescent light
Normal Picture
1^
No Sound
Volume
(Check whether the mute function has been
activated on the Remote Control.)
No Picture
№
No Sound
Not plugged into AC outlet
Not switched on
Contrast and BrightnessA/olume setting
{Check by pushing the Power Switch or
Stand-by Button on the Remote Control.)
No Picture
\
Normal Sound
If a signal with a non-applicable color system,
format or frequency is input, only the input
terminal indication is displayed.
No Color
Color controls set at minimum level.
Color System (Refer to page 29)
Normal Sound
\ \ \ \ s M I i f / / / / / y
Image too bright Normal Sound
A video signal has been connected to the
AV output terminal by mistake.
The input becomes high impedance, and the
image becomes too bright. Connect video
signals to the video input terminal.
Plasma Display panel
Symptoms Checks
Some parts of the screen do not
light up
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 sign of a
malfunction.
Afterimages appear
If still video images or computer images are displayed for long periods of time, an
afterimage may appear. In such cases, display an image which has some degree
of movement in it to reduce having afterimages appear.
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