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English

Troubleshooting

If the TV seems to have a problem, first try this list of possible problems and solutions. If none of these troubleshooting 
tips apply, visit “www.samsung.com”, then click on Support, or call Samsung customer service centre.

Issues

Solutions and Explanations

Picture Quality

First of all, please perform the 

Picture Test

 and confirm that your TV is properly displaying test image. (go to 

MENU

 - 

Support - Self Diagnosis - Picture Test

) If the test image is properly displayed, the poor picture may 

caused by the source or signal.

The TV image does not look as 

good as it did in the store.

• 

If you have an analogue cable/set top box, upgrade to a digital set top box. Use HDMI or Component cables 

to deliver HD (high definition) picture quality.

• 

Cable/Satellite subscribers: Try HD stations from the channel line up.

• 

Aerial connection: Try HD stations after performing Auto tuning. 

• 

Many HD channels are up scaled from SD (Standard Definition) contents.

• 

Adjust the Cable/Set top box video output resolution to 1080i or 720p.

• 

Make sure you are watching the TV at the minimum recommended distance based on the size and definition 

of the signal.

The picture is distorted: 

macroblock error, small block, 

dots, pixelization

• 

Compression of video contents may cause picture distortion especially in fast moving pictures such as sports 

and action movies.

• 

Low signal level or bad quality can cause picture distortion. This is not a TV issue.

• 

Mobile phones used close to the TV (cca up to 1m) may cause noise in picture on analogue and digital TV.

Colour is wrong or missing.

• 

If you’re using a component connection, make sure the component cables are connected to the correct 

jacks. Incorrect or loose connections may cause colour problems or a blank screen.

There is poor colour or brightness.

• 

Adjust the 

Picture

 options in the TV menu. (go to 

Picture Mode / Colour / Brightness / Sharpness

)

• 

Adjust 

Energy Saving

 option in the TV menu. (go to 

MENU

 - 

System - Eco Solution - Energy Saving

)

• 

Try resetting the picture to view the default picture settings. (go to 

MENU

 - 

Picture - Reset Picture

)

There is a dotted line on the edge 

of the screen.

• 

If the picture size is set to 

Screen Fit

, change it to 

16:9

.

• 

Change cable/satellite box resolution.

The picture is black and white.

• 

If you are using an AV composite input, connect the video cable (yellow) to the Green jack of component 

input 1 on the TV.

When changing channels, the 

picture freezes or is distorted or 

delayed.

• 

If connected with a cable box, please try to reset the cable box. Reconnect the AC cord and wait until the 

cable box reboots. It may take up to 20 minutes.

• 

Set the output resolution of the cable box to 1080i or 720p. 

Sound Quality

First of all, please perform the 

Sound Test

 to confirm that your TV audio is properly operating. (go to 

MENU

 - 

Support - Self Diagnosis - Sound Test

)

If the audio is ok, the sound problem may be caused by the source or signal.

There is no sound or the sound is 

too low at maximum volume.

• 

Please check the volume of the device (Cable/Sat Box, DVD, Blu-ray etc) connected to your TV. 

The picture is good but there is 

no sound.

• 

If you are using an external device, make sure the audio cables are connected to the correct audio input 

jacks on the TV.

• 

If you are using an external device, check the device’s audio output option (ex. you may need to change your 

cable box’s audio option to HDMI when you have a HDMI connected to your TV).

• 

Reboot the connected device by reconnecting the device’s power cable.

The speakers are making an 

inappropriate noise.

• 

Check the cable connections. Make sure a video cable is not connected to an audio input.

• 

For aerial or cable connections, check the signal strength. Low signal level may cause sound distortion.

[PH4000-RU]BN68-05792L-00L04.indb   35

2014-02-03     7:22:07