Element ELEFW502 Large Vertical Bars

[bobbyskillz]

I had this TV for a few years. I got it for free and replaced a bad LED. Another LED went out this weekend. I finally replaced it, but when I put it back together, I could see thick vertical lines on the left side of the screen. I cleaned and reseated the ribbon cables. I even swapped the cables left and right. This made no difference. Did I manage to damage the panel? Or is it possible the t-con took a hit?

[ngth82]

Re: Element ELEFW502 Large Vertical Bars

Would you please post a clear picture of the connections on the inside of the TV with the back cover removed?

[dick_barton]

Re: Element ELEFW502 Large Vertical Bars

You may have you pinched or damaged the panel COF ribbon which would be in line with the bar on screen.

[bobbyskillz]

Re: Element ELEFW502 Large Vertical Bars

Would you please post a clear picture of the connections on the inside of the TV with the back cover removed?

Thanks

[bobbyskillz]

Re: Element ELEFW502 Large Vertical Bars

I'm thinking I messed up the bonding at the panel. I'll try to check this evening.

[bobbyskillz]

Re: Element ELEFW502 Large Vertical Bars

No visible damage to the tabs. No manipulation of the ribbons changes the symptoms. I'm feeling like the tabs must be the culprit, but I'm really hoping it's something else.

[ngth82]

Re: Element ELEFW502 Large Vertical Bars

And just to confirm: is there any change if you run your finger across the bond between the LCD and the narrow PCB?

[bobbyskillz]

Re: Element ELEFW502 Large Vertical Bars

And just to confirm: is there any change if you run your finger across the bond between the LCD and the narrow PCB?

There's no change at all on either end.

[dick_barton]

Re: Element ELEFW502 Large Vertical Bars

Did you flick up the black bars holding the ribbon into the connectors to remove them. And with black clip up then re-insert the ribbon cable and push down to lock. The gold contacts on the end of the cables damage very easily.

[bobbyskillz]

Re: Element ELEFW502 Large Vertical Bars

Did you flick up the black bars holding the ribbon into the connectors to remove them. And with black clip up then re-insert the ribbon cable and push down to lock. The gold contacts on the end of the cables damage very easily.

I did. I even swapped the right/left ribbons. Is a damaged tab fairly obvious under magnification?

[bobbyskillz]

Re: Element ELEFW502 Large Vertical Bars

I looked over all the connections with high magnification and couldn't see anything suspicious. I guess my debate now will be whether to blow on a tcon. I'm not optimistic about that.

[dick_barton]

Re: Element ELEFW502 Large Vertical Bars

I would wait for others to offer possible solutions.

[budwich]

Re: Element ELEFW502 Large Vertical Bars

your best bet might be to try the tape cutoff method whereby you place strategic tape over some of the pins on the tcon to panel cable basically blocking some of the signals / voltages. this method has saved a lot of sets that don't have side tabs (your doesn't right?). Your case you want to play with left side looking at the set.

[bobbyskillz]

Re: Element ELEFW502 Large Vertical Bars

your best bet might be to try the tape cutoff method whereby you place strategic tape over some of the pins on the tcon to panel cable basically blocking some of the signals / voltages. this method has saved a lot of sets that don't have side tabs (your doesn't right?). Your case you want to play with left side looking at the set.

No side tabs on mine. I'm going to search for this method and try it. Thanks!

[nomoresonys]

Re: Element ELEFW502 Large Vertical Bars

https://www.youtube.com/watch?v=7TT8QYeN1s8