LG 65UH5500-UA common problem?

[hatinglgrightnow]

Re: LG 65UH5500-UA common problem?

i feel bad when i saw the last photo.. but don't give up you can bring it to life with some patient and T Type soldering Iron. search the Chinese aliexpress. for example

Yeah I was looking into that and the bonding tape but the shipping times are longgg. Mid-June type. Sucks.

If this thermal pad from amazon doesn't work I will hope to recoup some money by selling parts on ebay and likely will have to buy a TV.

[hatinglgrightnow]

Re: LG 65UH5500-UA common problem?

I found it good practice to gently fold the driver boards over onto the face of the panel and secure them with painters tape. It's too easy to catch them on something while moving the panel around.

Hopefully you'll find a way to fix this. As was said earlier having part of the tab still attached means alignment will be much less of an issue for you. Good luck.

Yeah thats def how it should be done. I thought I was super careful it must have happened with I was trying to close everything up. SO disappointing. Only had the TV for 3 years.

[Diah]

Re: LG 65UH5500-UA common problem?

i feel bad when i saw the last photo.. but don't give up you can bring it to life with some patient and T Type soldering Iron. search the Chinese aliexpress. for example

[mmartell]

Re: LG 65UH5500-UA common problem?

I found it good practice to gently fold the driver boards over onto the face of the panel and secure them with painters tape. It's too easy to catch them on something while moving the panel around.

Hopefully you'll find a way to fix this. As was said earlier having part of the tab still attached means alignment will be much less of an issue for you. Good luck.

[hatinglgrightnow]

Re: LG 65UH5500-UA common problem?

the cleaning is probably only necessary if you can see obvious contamination on the contacts... since we don't know where it has been so to speak.... ie. how did it get like that?

at this point, try just pressing down with something that is non-sticky so that it can be removed and something else can be tried... ie. not tape as trying to remove it or reposition afterwards is probably not going to happen easily.
Some sort of thermal pad / foam / rubber tubing... etc.

It probably happened when I was assembling the tv back after installing the new led strips. I bought this tv new in late 2017. Seems like the thermal pad worked for some people on this forum. I ordered this one:
https://www.amazon.com/ARCTIC-Compou...3I2?th=1&psc=1

[budwich]

Re: LG 65UH5500-UA common problem?

Yeah that is what I am thinking. But holding it down with what? Tape would work? People seem to be using ACF bonding tape. And what to clean it with?

the cleaning is probably only necessary if you can see obvious contamination on the contacts... since we don't know where it has been so to speak.... ie. how did it get like that?

at this point, try just pressing down with something that is non-sticky so that it can be removed and something else can be tried... ie. not tape as trying to remove it or reposition afterwards is probably not going to happen easily.
Some sort of thermal pad / foam / rubber tubing... etc.

[nomoresonys]

Re: LG 65UH5500-UA common problem?

Will work if done right, this isn't just a loose connection you can shim up, without re-bonding the "grey bar" will remain.

[hatinglgrightnow]

Re: LG 65UH5500-UA common problem?

Very tedious work, there's plenty more on youtube: https://www.youtube.com/watch?v=o_iBM5JgE28

wow his comment is "Manually Cof bonding process is totally impossible.
I have shared my practical experience on it.
Don't waste your time."

[nomoresonys]

Re: LG 65UH5500-UA common problem?

Very tedious work, there's plenty more on youtube: https://www.youtube.com/watch?v=o_iBM5JgE28

[hatinglgrightnow]

Re: LG 65UH5500-UA common problem?

what ever you do, don't take it any further off as right now it is basically holding "alignment"... you might get lucky by very carefully cleaning what you can and possibly holding it back down with something.

Yeah that is what I am thinking. But holding it down with what? Tape would work? People seem to be using ACF bonding tape. And what to clean it with?

[budwich]

Re: LG 65UH5500-UA common problem?

what ever you do, don't take it any further off as right now it is basically holding "alignment"... you might get lucky by very carefully cleaning what you can and possibly holding it back down with something.

[budwich]

Re: LG 65UH5500-UA common problem?

yep that's the problem... others may have some ideas.

[hatinglgrightnow]

Re: LG 65UH5500-UA common problem?

Oh man, think I just found the culprit

Removed the tape to see the driver board on the defective side and about 3/4 of that tab is lift off the board.

Is there anyway to fix this or am I a goner?

[budwich]

Re: LG 65UH5500-UA common problem?

you need to provide a better picture of the bottom edge board on the side showing the gray vertical bar so the forum can see how that side is interconnected. As pointed out, the "U" ribbon cables interconnect the bottom edge boards to complete the drive paths. However, on sets of this size, there may also be side tabs and / or side edge boards (similar to the bottom one) that also might have some interconnect cabling.

further as a test, you can disconnect the "u" cable on the "bad" side, you should then see about 1/4 quarter of the picture go white (or black) depending on design... including the grey area should be "gone".

[hatinglgrightnow]

Re: LG 65UH5500-UA common problem?

Here is the U ribbon of the defective side, how can I seat it correctly? It looks to be in properly, I never took them out when replacing the LEDs.

[hatinglgrightnow]

Re: LG 65UH5500-UA common problem?

Just tried switching the ribbon from the side that was working to the defective side and same result

I will try messing with the U-ribbon on the side that is defective.

Hope it works.

I should probably return the ribbons I ordered from ebay then right?

[hatinglgrightnow]

Re: LG 65UH5500-UA common problem?

U ribbons see photo

Thanks!

[hatinglgrightnow]

Re: LG 65UH5500-UA common problem?

of course you have U ribbon..i can see one on both side its the brown color you may have another one hidden on the photo... this U ribbon.. seat them correctly on the effected side

edit i marked them on yours photo

Thank you for marking them! Yes there are two of them none hidden, I will try to mess around with them.

[dick_barton]

Re: LG 65UH5500-UA common problem?

U ribbons see photo

[Diah]

Re: LG 65UH5500-UA common problem?

of course you have U ribbon..i can see one on both side its the brown color you may have another one hidden on the photo... this U ribbon.. seat them correctly on the effected side

edit i marked them on yours photo