Samsung LE46C650 LCD with four thin vertical lines

[kezzo]

Hello! Very useful forum, thank you to all those that contribute

I have a seven year old Samsung LE46C650 (46" LCD TV) which suddenly developed a fault - four thin vertical lines on the right hand side. Two are red, two are blue, each line is one pixel wide. Always the same lines in the same location, always there, TV is otherwise cool. See attached photo for example. I reseated the TCON board (and its three cables) but no improvement.

Am I looking at a faulty source driver and therefore not repairable? Or should I attempt a tab bond repair?

[ReeceyBurger123]

Re: Samsung LE46C650 LCD with four thin vertical lines

Prolly not repairable but panel fault

[saddle_au]

Re: Samsung LE46C650 LCD with four thin vertical lines

May be bad flat cable connection between TCON and panel. Remove and clean the one on that side (use folded paper in connectors as light sandpaper). Clean flat cable ends with white pencil rubber (never rub sideways always along cable towards end, make sure no rubber left anywhere), put cable back in other way around to make new crimp pressure points on cable.



Worst case is a panel tab connection chip dry joint. Pressure may solve it, but even if that works, it means its on the way out.