Lg 47lm860v 3d tv- no picture

[Diah]

Have flux in syringe, or should I try without first?

i would sugust with out... but if you like to use it try use high pressure cold air to let it go via the chip down side

[nomoresonys]

Wow...I’ve been nothing but polite and accommodating, yet I encountered rudeness that was unnecessary and really perturbed me. This behaviour is not acceptable and gives the forum a bad image. I hope this is not your normal attitude. As someone new to forums, I’m still figuring things out, and it would have been more constructive to raise concerns respectfully. Communication can be tough, but respect should always be part of the conversation. I get comfort from Karma so I'll sleep soundly tonight...will you!!!

I agree 1,000 percent, there is a problem here. HOPEFULLY someone in charge will correct it.

[Longon]

i would sugust with out... but if you like to use it try use high pressure cold air to let it go via the chip down side

Hey Diah.....I followed your original instruction rather than over complicate things using flux. I used what we call masking tape and heated up the said chip what felt like ages...see attached.....maybe not long enough but started to worry a little, unfortunately no difference.

[Diah]

Hey Diah.....I followed your original instruction rather than over complicate things using flux. I used what we call masking tape and heated up the said chip what felt like ages...see attached.....maybe not long enough but started to worry a little, unfortunately no difference.

this is nothings... heat not enough or time of heating are short... the whole should bean near to black color

[Longon]

OK I'll be a little more aggressive this time.....just was unsure whether to continue. learning as I go...

[Longon]

this is nothings... heat not enough or time of heating are short... the whole should bean near to black color

Attempt no.2........was there for so long my arm nearly fell asleep!! The temperature was not directly under the heat gun but close by..going to give it 30 min and I'll retry.

[Longon]

this is nothings... heat not enough or time of heating are short... the whole should bean near to black color

Hi Diah..............Still no change matey!!

[Diah]

if no change and you have sound then my post#50 are the place od damage buffer boards of panel, if there are no sound the BGA on main SoC , remove the black geatsink and do it as you did before

[Longon]

Hi Diah.......Shall I do as before on both IC 100 and 101..? or just main SoC?
Long

[Diah]

ic 100 only

[Longon]

Diah....After reflowing the ic 100 there's still no change here matey....
Long

[Diah]

Diah....After reflowing the ic 100 there's still no change here matey....
Long

then the panel...don't bother scrap it

[Longon]

Hi Diah...If we have tried all avenues then so be it..shame after everyones input. Would it be possible for you to give a little insight into the culprit causing the issue. I need not a detailed explanation but a generalised insight would be an advantage if I come across similar problems and then I feel I have gained further invaluable knowledge.
I thank you and all who have given their time attributing to this thread even if unfortunately we have been unable to bring back to life.
Long

[Diah]

Hi Diah...If we have tried all avenues then so be it..shame after everyones input. Would it be possible for you to give a little insight into the culprit causing the issue. I need not a detailed explanation but a generalised insight would be an advantage if I come across similar problems and then I feel I have gained further invaluable knowledge.
I thank you and all who have given their time attributing to this thread even if unfortunately we have been unable to bring back to life.
Long

nothings to shame for any,,, yours Photo listed at Post #49 tell its Panel buffer boards or BGA, you did refllow no change then left only the Panel buffer Boards had damage

[Longon]

Hey Lotas...I tried your advice again only this time I left a little longer than previously and not sure if this makes any difference but this time the screen changed drastically as you can see from the attached..

Hey there Lotas....I am just checking to see if you might be able to contribute further into my frustration with this ongoing project. My stubborness and inquisitive nature are keeping me from having to 'throw in the towel'....
Any input is appreciated.
Long

[Longon]

Each connector has contacts on the other side (which are soldered to the board) and there is a numbering of each output, insert the cable and use a multimeter (on the continuity tester) to check each line, that is, one probe on the T-CON connector, the second probe on the connector (on the soldering side) of the buffer bar, and you continuity test each line with a multimeter, moving the probes to each contact (1pin.- 1pin., 2pin.- 2pin., 3pin.- 3pin.,..........) and do the same between the motherboard and T-CON.

Hey there Lotas....I am just checking to see if you might be able to contribute further into my frustration with this ongoing project. My stubborness and inquisitive nature are keeping me from having to 'throw in the towel'
Anything you can contribute or direction towards any person in particular...
Hope your doing OK.
Long

[Longon]

I agree 1,000 percent, there is a problem here. HOPEFULLY someone in charge will correct it.

Hi there Nomoresonys??? (guessing Sony and you are not friends)....As for Davi, must be lonely with an attitude like that...anyhow moving on. Just having a trawl through this thread and are reaching out to find some further info with this issue. This maybe a loss but without actually finding what has caused the fault it leaves me feeling a little disheartened after spending a while fault finding with no certainty of the reasons behind the issue. Having said that I have still gained much more experiance with the help of all that have contributed.
Anything you can contribute or direction towards any person in particular...
Hope your doing OK.
Long

[nomoresonys]

Seems like the mistake you made in the first post probably damaged it even more, then even the blocking of signals couldn't bring it back, I would probably give up on it. But 13 years is a good run for an led tv.

[Longon]

Seems like the mistake you made in the first post probably damaged it even more, then even the blocking of signals couldn't bring it back, I would probably give up on it. But 13 years is a good run for an led tv.

Thanks for coming back to me NMS...Oh well the consensus seems to be heading for LCD heaven! Just for info is main board the likeliest culprit or a mix of t-con also.
I certainly know for definite who the real undeniable culprit is.....yours truly for stupidity with failing to ensure powering down prior to attempts in repairing!!
'A SIMPLE LESSON LEARNT OF WHICH THIS I'M SURE WILL NOT BE REPEATED' ALSO TAKE HEED THOSE WHO LIKE ME ARE JUST BEGINNING THEIR JOURNEY.
Although I'm sure other mistakes will be made, part of the discovery and on to the next project using skills and techniques I have gained.
Long

[Davi.p]

Ok, i'm a bit sorry for the rude post, but following certain threads takes so long, too much posts without a single test, i make hard effort to express myself in another language, doing this also when i'm at work, risking accident with the boss..

reading back the posts, you have 11,6v on the tcon input, this sounds a bit low to me, like a stressing dc dc at valley, then the 3 caps at 0,3v, them are also dirty, clean well them and test the whole tv, if 0,3v still there, remove the 3 caps, one of them can be shorted, if you have a good multimeter, NO 5 euro testers, check ohms slowly across all them, if 0ohms try remove first the one with less decimals measure, check again.. probably tcon is at fault..