Colored Vertical lines on Samsung UN55C6400RF TV

[Maverick1234]

Hi,
I have a Samsung 55inch TV (UN55C6400RF). It has started showing colored vertical lines. I have opened the TV and the power board had one pin (out1-) which is discolored (Model # bn44-00358b). Can this be bad or is it the T-Con board (Model # D03464E0J09B6012066). Any recommendations on diagnosing the issue?

Thanks,
Sanjay

[Davi.p]

Re: Colored Vertical lines on Samsung TV

Need photos of defect and the rest. Anyway Out1- is for the baklight and does not affect the pixels, anyway it has to be checked for voltage / resistance.

[Maverick1234]

Re: Colored Vertical lines on Samsung UN55C6400RF TV

Attached is the pic of the screen and the Out1- pin as compared to the other pins. Moreover I am hearing a humming noise from the power board. I will read about how to test the power board.

I checked shopjimmy.com and it doesnt have the powerboard Model # bn44-00358bn for my TV, nor an alternate. Any recommendations where I could find an alternate version of the power board?

Thanks,
Sanjay

[Davi.p]

Re: Colored Vertical lines on Samsung UN55C6400RF TV

The problem is on the tcon board or the panel, most probably the panel, i'm trying to diagnose same problem on mine, probably a bad chip or couple of chip on tcon.

[Maverick1234]

Re: Colored Vertical lines on Samsung UN55C6400RF TV

Were you able to diagnose the problem? If so please can you share the how and results. I tried measuring the voltages on the power board and didnt see any obvious problem.

Thanks,
Sanjay

[Davi.p]

Re: Colored Vertical lines on Samsung UN55C6400RF TV

No this repair is in standby for much time i think..