Other Information

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 samsung.com, then click on Support, or call Samsung customer service at 1-800-SAMSUNG.

Issues

Solutions and Explanations

Poor picture

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 (P. 26)

 

If the test image is properly displayed, the poor picture may be caused by the source or signal.

 

 

The TV image does not look as good

• If you have an analog cable/satellite box, upgrade to a digital set top box. Use HDMI or

as it did in the store.

Component cables to deliver HD (high definition) picture quality.

 

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

 

• Air/Cable Antenna connection: Try HD stations after performing Auto program.

 

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

 

• Adjust the Cable/Sat box video output resolution to 1080i or 720p.

 

 

The picture is distorted: macroblock

• Compression of video contents may cause picture distortion, especially in fast moving pictures

error, small block, dots, pixelization.

such as sports and action movies.

 

• Low signal level can cause picture distortion. This is not a TV problem.

 

• Mobile phones used close to the TV (up to 3.3 ft) may cause noise in picture on analog and

 

digital TV.

 

 

Color 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 color problems or a blank screen.

 

 

There is poor color or brightness.

• Adjust the Picture options in the TV menu.

 

(go to Picture mode / Color / Brightness / Sharpness) (P. 15)

 

• Adjust Energy Saving option in the TV menu (go to MENU – Picture – ECO Solution – Energy

 

Saving) (P. 15)

 

• Try resetting the picture to view the default picture setting.

 

(go to MENU - Picture - Picture Reset) (P. 20)

 

 

There is a dotted line on the edge of

• If the picture size is set to Screen Fit, change it to 16:9.

the screen.

• 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

• If connected to a cable box, please try to reset it. (reconnect the AC cord and wait until the cable

freezes or is distorted or delayed.

box reboots. It may take up to 20 minutes)

 

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

 

 

3D

 

 

 

The 3D Active Glasses may not work

• If there is a problem, keep other electronic devices as far away as possible from the 3D Active

properly if there is any other 3D

Glasses.

product or electronic devices turned on

 

near the glasses or TV.

 

 

 

You may notice a small amount of

• If so, dim the light or turn the lamp off.

screen flickering when watching

 

3D images in poor light conditions

 

(from a strobe light, etc.), or under a

 

fluorescent lamp (50Hz ~ 60Hz) or 3

 

wavelength lamp.

 

 

 

The ideal viewing distance should be

• We recommend sitting with viewer's eyes on a level with the screen.

three times or more the height of the

 

screen.

 

 

 

If you leave 3D Active Glasses on,

• Turn off 3D Active Glasses while not using them.

battery lifespan is shortened.

 

 

 

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Samsung LN46C750 user manual Troubleshooting, Solutions and Explanations