horizontal line on SHARP LC-80LE757U

[hmendez86]

I have an 80 inch sharp tv lc-80le757u. it has horizontal line from right to left is half way of the screen. If I look close to the line it is like image I showing but backwards. The line is not a constant color.......I did a job on another tv sharp 70 were it had a flickering panel and the problem was tab drivers and now am with this......Ill post some pics of tv.

[ReeceyBurger123]

Re: horizontal line on SHARP LC-80LE757U

Panel driver fault, I think you can actually tear the horizontal tab drivers off and it might sort the issue from reading another thread.

[hmendez86]

Re: horizontal line on SHARP LC-80LE757U

Panel driver fault, I think you can actually tear the horizontal tab drivers off and it might sort the issue from reading another thread.

Well am not sure if it work like the lc-70le757u, because on that tv is by just remove the tabs bonding and it will be fix. ...in this set of 80 inch tv is a bit different it just have the tab bonding solder to the tv which it has 4 in each side and the 70inch had a board with tab and connectEd at the bottom with the image drivers...so am in ??????eather to Remove it or not bit scared.....thinking that don't compromise the all tv........any suggestions ......

[budwich]

Re: horizontal line on SHARP LC-80LE757U

are you sure that the tabs are soldered to the panel? have you looked closely at each tab for signs of heating? When the tv is on have you "felt" each tab to see if there is a noticeable temperature difference which might highlight the marginal tab.... which if you are maybe lucky and they are soldered, you might be able to fix by close inspection of the soldering... maybe.

[hmendez86]

Re: horizontal line on SHARP LC-80LE757U

The line is in the middle of the 4 tab bonding I checked the battom which is the 2 and 3 in the middle of those tabs is the line. I check for over heating, but not any symptom of it.

[budwich]

Re: horizontal line on SHARP LC-80LE757U

ok... move towards the bottom corner of the set. The 4 tabs on the side should terminate on to the bottom board with some sort of cable connection. Is it a clamped cable connector? Hopefully, if so, can you disconnect that cable connector from the bottom board?

[Shinju]

Re: horizontal line on SHARP LC-80LE757U

Seen this failure on the 70"'sharps and it's not repairable unfortunately. I don't see the 80" bring that much different.

[budwich]

Re: horizontal line on SHARP LC-80LE757U

Seen this failure on the 70"'sharps and it's not repairable unfortunately. I don't see the 80" bring that much different.

you need to look thru the forum. Lots of the 70 in sets have been saved with this type of failure. Yes it can't be return to "factory spec" but it can be made to look "as good as new". The problem here is determine if the 80 in has a similar capability as the "operation" IS NOT reversible.... so one gets only one chance.

[hmendez86]

Re: horizontal line on SHARP LC-80LE757U

this is the tab bonding the 70 inch has on each side( example pic)

[hmendez86]

Re: horizontal line on SHARP LC-80LE757U

if you see this drivers are different as the one the 70inch has. this drivers are install but with no board...

[budwich]

Re: horizontal line on SHARP LC-80LE757U

but the "issue" isn't about the "lack of boards". The issue is the lack of tabs on BOTH SIDES of the set. In the "operation" used on the 70, tabs are removed from the "bad side" which allows the "still good side" to operated "better", resulting in basically a good picture / set. Since the 80 DOES NOT appear to have tabs on both side, it looks like the "operation" is not possible and thus it is less likely to save the set.

having said the above, IF the sides are indeed soldered to the panel, then a close inspection (both visual and with meter) and / or possibly retouching those joints may help depending on how accessible the solder points are to "standard soldering tools".

[hmendez86]

Re: horizontal line on SHARP LC-80LE757U

On both both sides it has 4 ic drivers....4 on the right and 4 on the left....the pic above is just an example how the drivers look like with no board (the sample pic shows only one side has drivers)and on the 80 inch tv has it on both sides.

[budwich]

Re: horizontal line on SHARP LC-80LE757U

OK... thanks for the clarification.
Don't worry about the lack of boards... they aren't the issue anyways.
The four tabs on each side have to be connected somewhere. Hopefully, if you follow those connections around to some point that can be disconnected / reconnected via a connector. That's what you need to double check things. Is there such a point? The picture that you posted doesn't show any cabling on the sides.

[ReeceyBurger123]

Re: horizontal line on SHARP LC-80LE757U

Just pull em off nothing to lose right ?

[hmendez86]

Re: horizontal line on SHARP LC-80LE757U

Yea I lose $600 only jejejeje. I did buy it from a friend it was cheap but he gains and I lose 600....

[hmendez86]

Re: horizontal line on SHARP LC-80LE757U

Out here its is a 4kdlls in tv at want to make a thousand dlls of it .

[budwich]

Re: horizontal line on SHARP LC-80LE757U

Well... if you are trying to make some money off this, then I think you are out of luck as there is no way to bring this set back to "factory standard". IF you remove the "troubled tabs", they will be gone and can't be replaced. If you are successful, I don't think you should "ethically" try to sell the set unless you fully and properly indicate to the buyer what has been done to the set. The "saves" discussed in the 70 in threads are NOT repairs and do leave the set "compromised" in some form.

[hmendez86]

Re: horizontal line on SHARP LC-80LE757U

Yep I will research bit more on how these drivers work....what I think is that they are connected like jumping cables with in the glass they connect from battom to the top 4 driver. I checked the Glass very close to it, it has little line veins jumpin to one driver to another and I think one of the source tab bonding which originate picture some how it has extra connection to distribute to the drivers.

[hmendez86]

Re: horizontal line on SHARP LC-80LE757U








From top to bottom the 3rd tab got more heat than the others. I checked from the back I don't seem burn like the other 70inch tv. Am gonna check the other side to compare temperature.

[budwich]

Re: horizontal line on SHARP LC-80LE757U

good idea on the "compare". Interesting on how the tabs are interconnected. The reason you need to try and make the set run on one side only without doing something "non-reversible", is to verify that indeed the set will operate properly if you do decide on trying to totally remove the bad tab(s). If it does, you then can focus on the "bad side" and maybe even more closely focus on the specific tab. IF as you say, the tabs are soldered (unlike the 70in case), you might be able to figure out something with the solder on that particular tab either to improve it or take it out specifically.