vertical lines of color throughout display

[forlon4]

hi I was just given a viewsonic optiquest q191wb monitor that has gone down - black out. Before doing some research I took it upon myself and dove right in looking for obvious electronics failure and dissasembled the monitor right down to backlights after reassembling and further research it became obvious that it was a power board problem which I inspected and found to have a bad 16v 1000microfared capacitor that had died. I replaced it with an identical rated one fired it up and "voila " lights ! unfortunately after firing it up the display is composed entirely of vertical colored lines . These lines will move when any of the menu or up down controls are used suggesting to me that they are functioning and a signal is being sent up to the display . Thinking (hoping ) that this was due to a lack of drivers , installation software or resolution settings I updated , acquired &installed software and set resolution for 1440 x 900 as a suggested requirement all to end up with the same results . Silly me ( should have made a note ) I believe that when I reassembled the unit that I placed the screens back in there appropriate order however I can't confirm this . Can screen placement order effect the display in this fashion ? If not what is the possible cause ? Can someone HHHHEEEELLLPPP!!! me out . Thanks everyone . :confused:

[Match]

are you sure that it was just that capacitor that had gone or if any of the other circuitry had been damaged, and what did you use to unsolder the old component and resolder the new one in?

[forlon4]

veiwsonic q191wb

 

Thanks for the "view" , all that is apparent through a visual was that one capacitor nothing else and even that was not "obvious"unless your aware of the physical trates of a cap. failure , in this case slightly domed top. Used a soldering wick this went "ticketty - boo " with positive results. I'm only using a 25 watt soldering pencil and not staying on components to long . Did resolder some frosted soldering joints , traced circiut with a meter and continuity is all good. Suggetions? :confused:

[Match]

I Think that if you had placed the screens back in the wrong position you wouldn't be getting lines (I'm assuming that they are fuzzy blurred lines), which makes me think that when the Cap popped that it's damaged an IC somewhere affecting the signal that's been sent to the transistor matrix for the screen.

[Dalo Harkin]

Bin it and get a new one

[Match]

Bin it and get a new one

 

I was trying not to say that. but at the end of the day with modern Electronics, and multi layered PCB boards changing components rarely works. :(

[Dalo Harkin]

LOL - its just a caes of, you could be there for hours messing around with the gubbings and still find nothing wrong, with the price of LCD and CRT monitors, its not worth it.