Author Topic: Samsung LE46M51BX scrambled picture (snowy) (Read 5654 times)

zica · « **on:** August 23, 2012,10:06:26 »

Hi!
Have problem with my Samsung LE46M51BX/XEE. Picture is colored snow.
Seems to be a common problem, that many have the problem.
People have changed main AV Board and cured the problem, but does
anybody know were on AV Board the fault is?
I've checked the voltage on main AV board and conectors.

Here's a video on the fault i have (not my video)
http://www.youtube.com/watch?v=lJwAZxPzV0Q&feature=related

Mulja tv repair portal · « **on:** August 23, 2012,10:06:26 »

zica · « **Reply #1 on:** August 23, 2012,10:18:23 »

Here's a picture of the AV Main Board. BN41-00630B
http://img571.imageshack.us/img571/808/cimg0173mc.jpg

And a picture of my screen
http://img846.imageshack.us/img846/2347/cimg0170m.jpg

jurq · « **Reply #2 on:** August 23, 2012,16:56:22 »

...BGA RAM problem, next to the scaler STP02....

Mulja tv repair portal · « **Reply #2 on:** August 23, 2012,16:56:22 »

zica · « **Reply #3 on:** August 24, 2012,12:58:41 »

Thanks mate for the tip. I will order a new BGA Ram.

jurq · « **Reply #4 on:** August 24, 2012,16:45:03 »

This is rather soldering problem of this IC...
Ideal solution is reballing...

zica · « **Reply #5 on:** August 26, 2012,14:19:04 »

Reballing didn't help. Now waiting for a new ic

Mulja tv repair portal · « **Reply #5 on:** August 26, 2012,14:19:04 »

zica · « **Reply #6 on:** September 09, 2012,13:47:31 »

After change of BGA Ram, the set is now up and running

It was very sweet, that the BGA came allready prepared with lead balls.
That made my job so much easier

Thanks again jurq

Mulja tv repair portal · « **Reply #6 on:** September 09, 2012,13:47:31 »

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