Samsung LN46A750 User Manual page 124

Appendix
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, call Samsung customer service at 1-800-SAMSUNG.
Problem 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 sound. 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
maximum volume, receiver, DVD, cable broadcasting receiver, VCR, etc.). Then, adjust the TV
volume accordingly.
Picture rolls vertically. Check all wire connections.
The TV operates erratical y. 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 problem. Please check the digital signal strength and input antenna.
Adjust the Brightness and Contrast.
Adjust the Fine tuning.
Make sure the broadcast you're receiving is High Definition (liD).
liD 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 tint. Make sure the Component cables are connected to the correct jacks.
Sn0wy picture: Your cable box may need a firmware upgrade. Please contact your Cable
company.
Ghosting on picture. This is sometimes caused by compatibility issues with your cable box.
Try connecting Component cables instead.
H0rizontal bars appear t0 fliCker; jitter Adjust the Coarse tuning and then adjust the Fine tuning.
shimmer on the imagel
Vertical bars appear to flicker jitte[ or Adjust the Coarse tuning and then adjust the Fine tuning.
sh miner on the imagel
Scree n is black and power indicat0 r On your computer check: Power, Signal Cable.
light b!inks s!eadi!Y: The TV is using its power management system.
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