SOURCE: Thin Yellow Vertical Line - Samsung LNT4665F LCD TV
Unplug for 30 seconds from it's power source and then try it again. If that doesn't work, call Samsung for further troubleshooting and have your model number and serial number handy. Please be prepared to tell them how long the line is.
SOURCE: Samsung DLP vertical black lines
I did some reading on this. They said its caused by a faulty DMD board. I understand it's costly... around $700 to replace. Still looking for a cheaper avenue...
SOURCE: When I turned the tv on only vertical lines appeared
I talked to a Samsung support helpline and it needs to be taken to a service center for repair.
SOURCE: black vertical lines on samsung lcd tv.when
Vertical lines are usually a a sign that your T-con board is going bad. You can get replacement parts for this TV at www.interliquidparts.com
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