Re: LCD Samsung LE40B651 start loop

After main board replacement TV works fine.
Many thanks to budm !

Re: LCD Samsung LE40B651 start loop

Yes, you are right. I attached tuner picture.
As not any new idea, I'm looking for such kind of board. I keep you post about result.
Thank you for your support !...

Re: LCD Samsung LE40B651 start loop

I disconnected IR cable, after power on, but still the same result.
Then I "cooked" the board but with not any result. I tried again to disconnect IR, but the same. It seems that I have bad lucky !
Are you sure that main board is issued ? Do you know some equivalent boards for BN40-00145A ?

Re: LCD Samsung LE40B651 start loop

I suppose you referred to cable from attached picture. When I disconnected, nothing happen, as the TV is in stdby, but cannot power on it.
I tried to heat the mainboard for a few minutes but not any change.
New idea ?...

I have an issue with my Samsung LE40B651 LCD, and I need your help.
Few weeks ago, when I tryed to power on from stdy,I got it in totaly blank status: no stdy LED, no sound, no backlight. Thanks to your help indication (especialy budm and tom66) I was able to fix power supply board (BN44-00264A) by replacing of UM801S(STRW6252).
Now I have 5.3V, 13V on CNM802, CP815~390VDC,I get stdby LED, I can power on from sdtby, I get starting sound, I get backlight, but not any image. After around 5 seconds it reboot again, and again .. and so on. For more details about simptoms, please follow...

Re: New Members - please post your introductions here

Hi all,
My name is Cristian, I'm 48 years old and I'm living in Romania.
I am a telecom engineer who, long time ago,during college time, I studied and worked in electronics domain. Few days ago, when I got broken my Samsung LCD, I remember, with some passion, about that time. After some research on Google for my tv issue, I found your site, and now I'm here, prepared with a few questions.
So, first I'd like to say "Hello" to all site members.