horizontal line on SHARP LC-80LE757U

[hmendez86]

Re: horizontal line on SHARP LC-80LE757U

Well god news....and bad....I took the drivers off and what it did it decrease the line and the transverse pic in the line. The line went down half of what it was before.now it color black transparent color bit visible in color like is trying to full pic but is there....I think might be death pixel?? don't know??? But it look bit more better..

[budwich]

Re: horizontal line on SHARP LC-80LE757U

ok... but how did you remove them (all 4)? I thought you said earlier that they were soldered to the panel.

Further depending on how / what you removed, you need to ensure that the area is totally clean. On the 70in, when some have pulled the tab cables from the panel, there was "pieces" of the cable / contact left behind.... look very carefully at each area.

can you post a picture with a test pattern displayed (ie. color bars or something well known).

[hmendez86]

Re: horizontal line on SHARP LC-80LE757U

I remodeling the tabs and half of line went down and it still a black transparent line. The line it gets lost with any color image.

[hmendez86]

Re: horizontal line on SHARP LC-80LE757U

Tomorrow I'll try to Clean with q-tip with bit of alcohol.....I was thinking that I might be the ACF conductive tape since it is conductive it might have some contact....the tabs are bonded with acf tape I did removed them with hair dryer and cycle air for it not to damage panel. The tabs are more easy to peel out with heat....
I'll post pictures tomorrow see what happends......thanks for your opinions.....

[budwich]

Re: horizontal line on SHARP LC-80LE757U

ok... then they weren't soldered.... and are like the 70in.... which can be readily torn away from the contact area. Your problem is more than likely some very small portion of bonding is still there. Not sure if heating is / was a good idea as potentially it might "flow" a small bit of bonding material "at the microscopic level". Cleaning is your best bet.

[hmendez86]

Re: horizontal line on SHARP LC-80LE757U

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[budwich]

Re: horizontal line on SHARP LC-80LE757U

hmmm.... not sure what to say. Definitely not totally "saved". If you can input a color bar test pattern, it will give you a better idea perhaps of the "response" of that area. I would try cleaning... visually you might not be able to see the "contamination" but electrically, it may be impacting the "capacitance" of the circuit such that it is causing some form of "slowness" of response.

On the 70 in that I "saved", one driver was totally melted into the bezel plastic but depending on how I started the TV, its picture was only slightly affected, other times, it wouldn't start at all. Once removed, all was good. I have seen posts of a few others have some issues after removal... cleaning helped, I think.

[hmendez86]

Re: horizontal line on SHARP LC-80LE757U

I clean the area and inspected were it was bond and everything seems right. The other tabs on the other side are working good no heating at all. What am thinking is were the damage tab was, if it was removed when started doing the line it would be saved. My thoughts is that ic driver burn the pixels if it was remove when it started doing I think it will not showed the black line..

[hmendez86]

Re: horizontal line on SHARP LC-80LE757U

Yea I saved a 70 inch sharp too the ic driver looked burn and when I touched it was heating bad as the other.....I didn't though by doing this will work....but at the end is worth it not to throw it to the trash.....

[budwich]

Re: horizontal line on SHARP LC-80LE757U

how are you cleaning the area... eraser?