Why is my MacBook screen dim?
MacBook A1181 Early 2008 Penryn 2.4GHz
This question has been answered successfully (screen still dim after new inverter cable AND inverter board) by suggesting to install a new top case. I have installed a new top case but still have a similar, but not exactly the same, dim screen issue.
I purchased a broken Early 2008 MacBook, seemingly needing a new Display Inverter Cable and possibly a new LCD and/or Inverter as the display was very dim. Along the way, I discovered that It needed some other repairs. After reassembly and on startup the screen was still very dim and possibly even more so. I can barely see the screen during daylight hours.
Here are the components that I replaced and troubleshooting that I've done so far:
Installed a brand new LCD display, brand new Inverter, brand new Inverter Cable, 2 new RAM modules (2GB each), brand new Optical Drive, a used known working Hard Drive, a brand new top case and keyboard/trackpad and a brand new battery.
The dim screen has pale yellow tint. Display calibrations in System Preferences aren't able to correct the color or brightness. Unchecking boxes in energy saver has no effect.
On startup the screen hangs for a bit after the dim gray apple screen with a pale yellow screen.
If I view the screen from above at a sharp angle, it is much brighter but still has the yellow cast.
When the Macbook wakes from sleep, the screen is very dim but gets slightly brighter after a minute or two.
Did I possibly get a faulty new LCD or Inverter? I reset the PRAM and then the SMC but no change in screen brightness. Or, could the Display Data Cable be faulty? I would think that if it were, there would be no data or screen image at all. Maybe a logic board issue?
The MacBook is running OS 10.7.5 Lion, 4GB total RAM, 320GB hard drive.
I'm ordering a VGA adapter for this machine, so may have more info after I can see an image on an external display.
Thank you so much for any insight on this .
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