Panasonic TH-46PZ850U One spot remains dark Chaotic image, noisy, Whirling sound is heard

If there is a problem with your TV, please refer to the table below to determine the symptoms, then carry out the suggested check. If this does not solve the problem, please contact your local Panasonic dealer, quoting the model number and serial number (both found on the rear of the TV).

Problem

“Press any key to return” moves on the screen

One spot remains dark

Chaotic image, noisy

Screen	displayed
	No image can be

Only spots are displayed instead of images

Neither image nor sound is produced

Black Box appears

No sound is produced

Sound Sound is unusual

Whirling sound is heard

TV	Parts of the TV set
set	become hot.

Actions

The function to prevent “Image retention” is activated. (Not a faulty symptom)

•The screen saver is activated if the TV unit is not operated for a certain time in SD mode.

•“Image retention” (p. 5)

A pixel or luminescent spot can occasionally be missing in plasma displays.

(Not a faulty symptom)

Check nearby electrical products (car, motorcycle, fluorescent lamp).

Check Picture menu (p. 28)

Check the cable connections. (p. 9-12)

Check that the correct input has been selected. (p. 22)

Check the channel settings. (p. 42)

Check the antenna cables.

Is the AC power cord plugged into the outlet?

Is the TV unit turned On?

Check Picture menu (p. 28) and volume.

Check the AV cable connections. (p. 9-12)

Check that the correct input has been selected. (p. 22)

Change settings of Closed Caption (CC). (p. 44)

Are the speakers’ cables connected correctly? (p. 48)

Is “Sound Mute” active? (p. 13)

Is the volume set to the minimum?

Is “Speaker output” set to “Off”? (p. 28)

Change “SAP” settings. (p. 16)

Check “HDMI 1 in”, “HDMI 2 in”, “HDMI 3 in” or “HDMI 4 in” settings. (p. 28)

Set “SAP” setting to “Stereo” or “Mono.”

Check the HDMI device connected to the unit.

Set the audio setting of the HDMI device to “Linear PCM.”

If digital sound connection has a problem, select analog sound connection.

The sound is from the built-in cooling fan (not a sign of faulty operation).

Even when the temperature of parts of the front, top and

rear panels has risen, these temperature rises will not pose any problems in terms of performance or quality.

FAQ FAQs, etc.

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