Toshiba 50HP81 Troubleshooting, Sound, Check, Note:, Checks, Picture, Symptoms, Symptoms, Plasma Display panel, Volume, No Sound, No Sound, No Color, No Picture, No Picture

Troubleshooting

Before you call for service, determine the symptoms and make a few simple checks as shown below.

Symptoms		Checks
Picture	Sound
		Electrical Appliances
		Cars/Motorcycles
		Fluorescent light
Interference	Noisy Sound
		Volume
		(Check whether the mute function has been
		activated on the remote control.)
Normal Picture	No Sound
		Not plugged into AC outlet.
		Not switched on.
		Check PICTURE and BRIGHTNESS/ Volume
		setting by pushing the power switch or stand-
No Picture	No Sound	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.
No Picture	Normal Sound
		Color controls set at minimum level.
		Color system (see page 28, 29)
No Color	Normal Sound
Plasma Display panel
Symptoms		Check
Some parts of the screen do	The plasma display panel is manufactured using an extremely high level of
not light up	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 ghost image to remain on the Wide Plasma Display.
	Examples of still pictures include logos, video games, computer images, teletext
	and images displayed in 4:3 mode.

Note:

Ghost images appear The permanent ghost 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.

Whirring sounds can be heard	The display unit is fitted with a cooling fan to dissipate heat generated during normal use.
from the display unit.	The whirring sound is caused by rotation of the fan and is not a malfunction.

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