Chosen Solution
My 10yr old dropped my Mac and now the screen is not lighting up. When I put an external light to the screen I can see the operating system faintly and I can navigate - barely. At the moment I have my laptop hooked up to a DVI cord to another monitor and it is working fine. BUT….It would be lovely to have my laptop back to its normal state. My guess is that the backlight has stopped working and maybe something has come dislodged on impact. So…..if this is the case, how easy or hard would it be for me to fix it? Can I fix it if I have upgraded the ram in the same laptop or is it more complex? I await your answer in anticipation! V
First step is to connect to an external monitor and check the GPU integrity. You’ve done it and you can now concentrate on a display lightning issue. I would check these connections:
- inverter cable to logic board
- inverter cable to inverter board
- LCD CCF lamp cable to inverter board The procedure is to replace the inverter cable first since the part is pretty cheap, then the inverter board and finally the LCD panel (CCF lamp could be broken). If the unit was dropped there’s also the possibility of a inverter shorted cable in the hinge that damaged the inverter circuitry on the logic board. A skilled tech could check the voltage at the logic board inverter socket ouput. If there’s voltage there the logic board is OK and the problem is display related.
