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[] Troubleshooung - Samsung LN52B750 User Manual

Series 750.
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If the TV seems to have a problem, first try this list of possible problems and solutions. If none of these troubleshooting tips apply,
call Samsung customer service at 1-800-SAMSUNG.
Possible Solution
Poor picture.
Try another channel. /Adjust the antenna. / Check all wire connections.
Poor sound quality.
Try another channel. /Adjust the antenna.
No picture or sounc
Try another channel. / Press the SOURCE button.
Make sure the TV is plugged in. / Check the antenna connections.
No sound or sound is too low at
First, check the volume of units connected to your TV (digital broadcasting receiver, DVD,
maximum volume,
cable broadcasting receiver, VCR, etc.). Then, adjust the TV volume accordingly.
Picture rolls vertically.
Check all wire connections.
There is a problem with the picture
Run the Picture test in the Self diagnostic menu.
There is a problem with the sound
Run the Sound test in the Self diagnostic menu.
The TV operates erratically.
Unplug the TV for 30 seconds, then try operating it again.
The TV won't turn on
Make sure the wall outlet is working.
Remote control malfunctions.
Replace the remote control batteries.
Clean the upper edge of the remote control (transmission window).
Check the battery terminals.
'Check signal cable' message.
Ensure that the signal cable is firmly connected to the PC source.
'Not Supported Mode' message.
Check the maximum resolution and connected device's Video frequency.
Compare these values with the data in the Display Modes.
Digital broadcasting screen
Please check the digital signal strength and input antenna.
The image is too light or too dark.
Adjust the Brightness and Contrast. / Adjust the Fine tuning.
Black bars on the screen.
Make sure the broadcast you're receiving is High Definition (HD).
HD channels sometimes broadcast Standard Definition (SD) programming, which can
cause black bars.
Set your cable/satellite box to stretch or widescreen mode to eliminate the bars.
Picture has a Red/Green or Pink
Closed Captioning not working.
Snowy picture.
Ghosting on picture.
Horizontal bars appear to flicker
jitter or shimmer on the image.
Vertical bars appear to flicker, jitter
or shimmer on the image.
Screen is black and power indicator
light blinks steadily.
Make sure the Component cables are connected to the correct jacks.
If you are using a Cable/Satellite box, you must set Closed Captioning on the box, not
your TV.
Your cable box may need a firmware upgrade. Please contact your Cable company.
This is sometimes caused by compatibility issues with your cable box.
Try connecting Component cables instead.
Adjust the Coarse tuning and then adjust the Fine tuning.
Adjust the Coarse tuning and then adjust the Fine tuning.
On your computer check: Power, Signal Cable.
The TV is using its power management system.
Move the computer's mouse or press any key on the keyboard.


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