KE-P42MRX1, KE-P50MRX1 - Sony TV Service Manual (repair manual). Page 18

Here are some simple solutions to problems which may affect the picture and sound.

No picture (screen is dark) and no sound. • Check the aerial connection.

• Connect the display unit and media receiver unit to the mains, and 

press the   power switch on the front of media receiver unit.

• Connect the display unit to the media receiver unit using the 

supplied display interface cable.

• If the   (power on/standby) indicator is on, press TV 

 on the 

remote control. 

The TV turns off automatically. (The TV 
enters the standby mode.)

• Check if the Sleep Timer is activated (page 30).
• Check if Auto Shutoff is activated (page 30).

No picture or no menu information from 
equipment connected to the Scart 
connector.

• Check that the optional equipment is on and press the 

 button 

repeatedly on the remote control until the correct input symbol is 
displayed on the screen (page 52). 

• Check the connection between the optional equipment and the TV.

Double images or ghosting.

• Check aerial/cable connections.
• Check the aerial location and direction.

Only snow and noise appears on the 
screen.

• Check if the aerial is broken or bent.
• Check if the aerial has reached the end of its serviceable life. (3-5 

years in normal use, 1-2 years at the seaside)

Dotted lines or stripes.

• Keep the TV away from electrical noise sources such as cars, 

motorcycles, or hair-dryers.

No colour on colour programmes.

• Using the menu system, select the “Picture Adjustment” menu and 

select “Reset” to return to the factory settings (page 23).

• If you set the Power Saving function to “Reduce,” picture colours 

may become dimmer (page 26).

Some tiny black points and/or bright 
points on the screen.

• The picture of a display unit is composed of pixels. Tiny black 

points and/or bright points (pixels) on the screen, do not indicate a 
malfunction.

The picture is too bright.

Picture (stripe) noise.

• Using the menu system, select the “Picture Adjustment” menu and 

select “Picture Mode” Then select the desired picture mode (page 
22).

• Make sure that the aerial is connected using the supplied coaxial 

cable.

• Keep the aerial cable away from other connecting cords.
• Do not use 300-ohm twin lead cables as interference may occur.

Poor picture (white saturation) when 
viewing a signal from Scart connector 

3/

.

• Make sure that the output signal of the equipment connected to the 

Scart connector 

3/

 is not an RGB signal. If it is an RGB 

signal, please connect the equipment to Scart 

1/

 or     

2/

.

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Distorted picture and/or noisy sound.

• Check if any connected optional equipment is installed in close 

proximity of the TV set.

Stripe noise during playback/recording   
of a VCR.

• Video head interference. Keep your VCR away from the TV.
• Leave a space of 30 cm between your VCR and the display unit to 

avoid noise.

• Avoid installing your VCR in front of the display unit or at the side 

of the display unit.

Poor or no picture (screen is dark), but 
good sound.

• Using the menu system, select the “Picture Adjustment” menu and 

select “Reset” to return to the factory settings (page 23).

• If the 

 PICTURE OFF indicator lights up in blue, press 

 

(picture off) on the remote control.

Noisy picture when viewing a TV 
channel.

• Using the menu system, select the “Manual Programme Preset” 

option in the “Set Up” menu and adjust Fine Tuning (AFT) to 
obtain better picture reception (page 35).

• Using the menu system, set the "Noise Reduction" option in the 

“Picture Adjustment” menu to reduce the noise in the picture (page 
23).

Distorted picture when changing 
programmes or selecting teletext.

• Turn off any equipment connected to the Scart connector on the 

rear of the media receiver unit.

In the screen appears an image 
retention (afterimage)

• Using the menu system, select the “Features” menu, next select the 

“Screen Saver” submenu and finally set the “All White” option to 
“On” to reduce the image retention (see page 29).

The screen flickers when turning on 
the TV.

• This is inherent in the Plasma Display Panel, and does not indicate 

a malfunction.

• Using the menu system, enter the “Country” option in the “Set Up” 

menu and select the country in which you operate the TV set (page 
33). For Cyrillic languages, we recommend that you select Russia 
if your own country does not appear in the list. 

• Using the menu system, enter the “Language” option in the “Set 

Up” menu and select the languge as the NexTView is broadcasted 
(page 46).

Good picture, no sound.

• Press the 

2 +/– or % (mute) on the remote control.

• Check that “TV Speakers” option is set to “Main” in the “Sound 

Adjustment” menu (page 25).

Audio noise.

• Make sure that the aerial is connected using the supplied coaxial 

cable.

• Keep the aerial cable away from other connecting cords.
• Do not use 300-ohm twin lead cables as interference may occur.
• Communication problems may occur if the infrared communication 

equipment (e.g. infrared cordless headphones) is used near the TV. 
Please use headphones other than infrared cordless headphones, 
move the infrared transceiver away from the TV until the noise is 
eliminated, or move the transmitter and receiver of the infrared 
communication equipment closer together.

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