Samsung black vertical lines sets of 3

[jkmac2448]

Hello,
we have a samsung 46 in with good picture new color wheel and lamp, but have black vertical lines in sets of three across screen. Help!

 

[jkmac2448]

Does the TV have a grounded 3 prong plug?
lift the ground pin with one of those hardware store grounding adapters. (3 to 2 pin power plug adapter)
Do the lines go away?
Disconnect the inputs to the TV , leave just one input connected. Do the lines go away?
any time you have more than one ground connected to the TV, you can get lines. It's called a ground loop.

The TV cord does not have a ground prong nor does it remove from back of TV like my 42" Samsung

 

[soundguruman]

unfortunately, if there is only one device plugged in and the lines are still there, the horizontal amplifier has gone sour. You will need to get the unit serviced at a repair center.

 

[jkmac2448]

Thank you, but why would it be a horizontal amp if the lines are vertical?

 

[soundguruman]

the lines appear when the picture cannot function horizontally

 

[buwish]

Best answer selected by buwish.