Hi to all! well im new in the forums and this is my first thread and my first post 
, well i need some help with this problem guys, i have a early 2009 mbp who doesn't give me up the backlight, all the mac starts and works perfectly except for the backlight im informed in the theme of the its possible to be the 2A "white dot" fuse or de WLED driver, my logicboard model is the 820-2330-A, i already checked the schematics for my board (only the schematics because i don't found the boardviews for free hehehehe) i localized the WLED driver and the fuse in the board and im ready to test it with the multimeter, the problem is... i don't have any idea about how to check it, yes... i know than testing the driver its with continuity test, but... i have already tried to test the driver and it doesn't give me any continuity, i already tried in another QFN chip and nothing, its obviously than im doing something wrong because its impossible than the board are totally bad if it works well... the question is:
what i can do for test the driver correctly... what method o technique i can use?
the test for the fuse are the same? (continuity test) or i have to test the resistance?
thanks to all for help me and i hope stay in the forums a lot of time!
, well i need some help with this problem guys, i have a early 2009 mbp who doesn't give me up the backlight, all the mac starts and works perfectly except for the backlight im informed in the theme of the its possible to be the 2A "white dot" fuse or de WLED driver, my logicboard model is the 820-2330-A, i already checked the schematics for my board (only the schematics because i don't found the boardviews for free hehehehe) i localized the WLED driver and the fuse in the board and im ready to test it with the multimeter, the problem is... i don't have any idea about how to check it, yes... i know than testing the driver its with continuity test, but... i have already tried to test the driver and it doesn't give me any continuity, i already tried in another QFN chip and nothing, its obviously than im doing something wrong because its impossible than the board are totally bad if it works well... the question is:what i can do for test the driver correctly... what method o technique i can use?
the test for the fuse are the same? (continuity test) or i have to test the resistance?
thanks to all for help me and i hope stay in the forums a lot of time!