Panasonic th-37pwd4ex User Manual
36
Troubleshooting
Before you call for service, determine the symptoms and make a few simple checks as shown below.
Symptoms
Some parts of the screen
do not light up
do not light up
After-images appear
Whirring sounds can be
heard from the display unit.
heard from the display unit.
Plasma Display panel
Check
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.
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 Plasma Display.
Examples of still pictures include logos, video games, computer images, teletext
and images displayed in 4:3 mode.
cause a permanent after-image to remain on the Plasma Display.
Examples of still pictures include logos, video games, computer images, teletext
and images displayed in 4:3 mode.
Note:
The permanent after-image on the Plasma Display resulting from fixed image use
is not an operating defect and as such is not covered by the Warranty.
This product is not designed to display fixed images for extended periods of time.
The permanent after-image on the Plasma Display resulting from fixed image use
is not an operating defect and as such is not covered by the Warranty.
This product is not designed to display fixed images for extended periods of time.
The display unit is fitted with a cooling fan to dissipate heat generated during normal use.
The whirring sound is caused by rotation of the fan and is not a malfunction.
The whirring sound is caused by rotation of the fan and is not a malfunction.
Symptoms
Checks
Electrical Appliances
Cars/Motorcycles
Fluorescent light
Cars/Motorcycles
Fluorescent light
Volume
(Check whether the mute function has been
activated on the remote control.)
(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.)
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 colour
system format, or frequency is input, only
the input terminal indication is displayed.
system format, or frequency is input, only
the input terminal indication is displayed.
Colour controls set at minimum level.
Colour system (see page 24, 25)
Colour system (see page 24, 25)
Picture
Interface
Normal Picture
No Picture
No Picture
No Colour
Sound
Noisy Sound
No Sound
No Sound
Normal Sound
Normal Sound