Toshiba 55L7453D - Vertical Lines

[Billsy]

All the best everyone

Can anyone help with my first Toshiba repair?
Was getting a good picture for a few seconds. I have successfully repaired the backlight and when re-assembled, was just getting funky shapes on the screen so gave all the ribbons a good clean and now there's no picture just vertical lines. I've re-cleaned the ribbons a couple of times with no effect. removing the tcon-panel ribbons just blanks the respective side of the display.
Any tips for these sets?
Thanks

[Billsy]

Re: Toshiba 55L7453D - Vertical Lines

Can anyone point me in the right direction for this fault?
Thanks

[R_J]

Re: Toshiba 55L7453D - Vertical Lines

You likely damaged the panel. either damaged one of the tab bonds, or maybe damaged the cof (chip on foil) You may have even damage the panels ic's with a static discharge.

[Billsy]

Re: Toshiba 55L7453D - Vertical Lines

Many thanks RJ

[budwich]

Re: Toshiba 55L7453D - Vertical Lines

the first picture appears to show "damage" that results from panel issues related to signals coming from the tabs at / near the bottom in that corner. As suggested by RJ, it is possible that the handling of the panel caused damaged. You might want to check around that area to see if there is any obvious damage but also check to ensure that there isn't any metal frame pieces touching the boards / panel areas where they should not be... this could be the result of "poor" assembly effort.

[Billsy]

Re: Toshiba 55L7453D - Vertical Lines

Thanks for the help guys. I had another poke around and found the culprit. The ribbon that sits between the main board and whatever the central board is, needed recleaning. I must have introduced some muck first time round. Now works perfect

Thanks again