vizio m3d650sv panel questions

[BestAmusementsFL]

hey guys working on a vizio m3d650sv for a local pawn shop and originally started with 3 vertical lines on right hand side...shop ordered a tcon board & they installed and lines were still there...then after having them switch the 4 ribbon cables around lost all picture including backlights...i went back to troubleshoot & noticed that when you disconnect the red wired cable from either tcon or inverter board you regain backlights...after doing some research i've concluded that this is probably a tab bonding issue in reference to the lines but as far as the backlight issue do you guys have any ideas for me? appreciate all information shared

[BestAmusementsFL]

Re: vizio m3d650sv panel questions

is there anymore information i could provide to help get an answer?

[budm]

Re: vizio m3d650sv panel questions

If the backlights were working BEFORE switching the ribbons cables around then it may mean that the cables were not put back in place properly, they can be real tricky some times.
As far as Vertical lines on the screen, I do say it is the panel problem.

[BestAmusementsFL]

Re: vizio m3d650sv panel questions

The 4 ribbon cables are identical...same pn on all 4...can they not be switched around?

[102mm]

Re: vizio m3d650sv panel questions

The 4 ribbon cables are identical...same pn on all 4...can they not be switched around?

Tab bonds on the screen.. Helped a guy fix on just last week, his was the last one on the left side.

[Nick's Tvs]

Re: vizio m3d650sv panel questions

You can almost always switch those ribbons around as per the same tv panel they will use the exact same ribbons.
You may as budm suggested have not placed those back in correctly.

[dick_barton]

Re: vizio m3d650sv panel questions

You are unclipping the cables and not pushing them in and out of the connectors, are you?

[BestAmusementsFL]

Re: vizio m3d650sv panel questions

Yes unclipping...I solder/work on electrical components for a living just branching into tvs to learn about something new...I'd agree about the tab bonds...thanks for the help guys