LG 65UH5500-UA common problem?

[notallbad]

Re: LG 65UH5500-UA common problem?

have to take off the plastic frame and "metal bar" on the bottom of the tv by driver board and then the panel just lifts up, if that makes sense.

After writing that realised the OP has already disassembled his to replace leds. So already knows how to do it.

[notallbad]

Re: LG 65UH5500-UA common problem?

No bought it retail end of 2017.

Swap the ribbon and let us know the results, of course only one half of the panel with work but at least it will put your mind at rest knowing its as simple as replacing the ribbon.

We're all waiting in suspense!

[hatinglgrightnow]

Re: LG 65UH5500-UA common problem?

Swap the ribbon and let us know the results, of course only one half of the panel with work but at least it will put your mind at rest knowing its as simple as replacing the ribbon.

We're all waiting in suspense!

ahhh have to work up the courage to swap from the working side to test. the guy from ebay shipped today hopefully those come in soon!

[Diah]

Re: LG 65UH5500-UA common problem?

i don't think this pin the problem, see the tab of the effected side.. you may have U ribbon cable on it.. if yes then its just fitting it again,

[hatinglgrightnow]

Re: LG 65UH5500-UA common problem?

i don't think this pin the problem, see the tab of the effected side.. you may have U ribbon cable on it.. if yes then its just fitting it again,

by tab do you mean the tab connecting it to the glass panel?

[Diah]

Re: LG 65UH5500-UA common problem?

NOT this, on the board... take out the speaker and the metal cover of the effected side.. see are there U ribbon cable as its 65 it may have 2 or 3.. many UHD used U ribbon.. hope yours too

[hatinglgrightnow]

Re: LG 65UH5500-UA common problem?

NOT this, on the board... take out the speaker and the metal cover of the effected side.. see are there U ribbon cable as its 65 it may have 2 or 3.. many UHD used U ribbon.. hope yours too

There are no U ribbons that I can see. Only those 2 ribbons I showed and another ribbon that is not attached to the glass panel.

Even after removing everything when changing the LED strips, there were no other ribbons besides the ones seen here. Moved the speakers in this pic.

[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

[dick_barton]

Re: LG 65UH5500-UA common problem?

U ribbons see photo

[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.

[hatinglgrightnow]

Re: LG 65UH5500-UA common problem?

U ribbons see photo

Thanks!

[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?

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.

[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?

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?

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

[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.

[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?

[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?

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."