SAMSUNG -LE37A450C2 Bad Pic.

[Stanislav]

Re: SAMSUNG -LE37A450C2 Bad Pic.

1-0,1745
2-1.64
6-1,72
7-1,84
8-5,15
10-5,68
11-5,9
12-7,1
13-7,3
15-6,75
16-6,5
17-4,8
21-4,48
22- 3,95

[tom66]

Re: SAMSUNG -LE37A450C2 Bad Pic.

The results confirm the "AS15" gamma chip on your board is bad. It is under one of the square yellow pads. If you have the equipment you can replace it (the chip is a few dollars), otherwise you can replace the whole board (can be expensive due to high demand though) and the problem should be resolved

[Stanislav]

Re: SAMSUNG -LE37A450C2 Bad Pic.

Tom thank you

unfortunately I do not have such equipment,everything I do is save from garbage another TV.
will look for new board and will write again

[Stanislav]

Re: SAMSUNG -LE37A450C2 Bad Pic.

Hi Tom
I found AS15F only I decided to try to change it

I downloaded grossly old (of course without damage to the circuit board)


Then install the new


Finally everything works. Thank you my friend

[CapLeaker]

Re: SAMSUNG -LE37A450C2 Bad Pic.

thanks for the follow up!

[Davi.p]

Re: SAMSUNG -LE37A450C2 Bad Pic.

Stanislav do you tell me how one can evaluate a defect with a miniature picture of screen??
Tom66: is there any other posts that explains here how can evaluate the goodness of the vgamma voltages?

[selldoor]

Re: SAMSUNG -LE37A450C2 Bad Pic.

Well Tom obviously did?

See here might help
https://www.badcaps.net/forum/showth...ighlight=gamma

[Davi.p]

Re: SAMSUNG -LE37A450C2 Bad Pic.

i don't understand Selldoor, is for me the comment?
ok now i watch the link , good, thanks..

[Smuggler]

Re: SAMSUNG -LE37A450C2 Bad Pic.

The results confirm the "AS15" gamma chip on your board is bad. It is under one of the square yellow pads. If you have the equipment you can replace it (the chip is a few dollars), otherwise you can replace the whole board (can be expensive due to high demand though) and the problem should be resolved

Hi,
I'm just trying to understand the procedure. Could I just ask how the conclusion of those voltages being bad was reached? I've just looked at datasheet and can't tell what those voltages should be? Or maybe i'm missing something?

Thanks