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no backlighting


mbcoupe
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hello all im new to this forum  and i know it only concerns OSX installs ..but after looking at the posts its obvious to me that the members REALLY know WHATS UP.... i have a delld630 with the Nvidia  chip that did the well known failure seen in most of these laptops.. blank screen.. using ext monitor showed that the creen worked but 4 colors and 600x480 was the  res. and (obviously) could not be changed.. im assuming this was a bare bones video mode used by the bios chip or whatever that was bypassing the graphics card.. so bottom line i did a reflow of the nividia card and lo and behold it worked !! kinda.. with ext monito the graphics are fine now 1200x1074 i think with all display options selectable... NOW for my issue.. the screen on the laptop looks like it has no backlight .. i can still see it if held just right  just barely  almost like a negative chromatic color screen... how do i tell if its the inverter or  the screen without trying a new one 

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well does it work in bios setup or boot? as for testing .... you would have to test with a known good inverter board.or swap your inverter to a known working screen. no real way to test a CFL tube inside the screen directly.

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