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Replaced inverter, backlight works for ~2secs then goes off. PowerBook G4 Mercury.

128keaton

128keaton

macrumors 68020
Original poster
Jan 13, 2013
2,029
419
Hey guys, I replaced my inverter board in my PowerBook successfully. The only issue is that the backlight turns off after 2secs when booting and waking from sleep.
EDIT: No one? I've reset the PMU multiple times to no avail.
 
Last edited:
128keaton said:
Hey guys, I replaced my inverter board in my PowerBook successfully. The only issue is that the backlight turns off after 2secs when booting and waking from sleep.
EDIT: No one? I've reset the PMU multiple times to no avail.
Click to expand...

Is it always a perfectly consistent 2 seconds?
 
Altemose said:
It usually is something annoying like that.
Click to expand...

I'm really glad it was. I'm typing this reply from it right now. It is a mobile-ish device once more! God, I love this keyboard. In a couple of minutes, I'm gonna make a post with common problems and solutions for the Titanium PBs since they are plagued with many issues.
 
128keaton said:
I'm really glad it was. I'm typing this reply from it right now. It is a mobile-ish device once more! God, I love this keyboard. In a couple of minutes, I'm gonna make a post with common problems and solutions for the Titanium PBs since they are plagued with many issues.
Click to expand...


Did you have to remove the Logic Board to fix the issue?
 
Altemose said:
Did you have to remove the Logic Board to fix the issue?
Click to expand...

Yup, but not the screen, iFixit has that listed as a step. You just need to remove (while the screen is shut and top is facing down) the right clutch and hinge mount to get access. I had an issue with the CPU fan connector breaking, I ended up supergluing it to the logic board and just removing the fan with the logic board, friction seems to keep it in place.
 
128keaton said:
Yup, but not the screen, iFixit has that listed as a step. You just need to remove (while the screen is shut and top is facing down) the right clutch and hinge mount to get access. I had an issue with the CPU fan connector breaking, I ended up supergluing it to the logic board and just removing the fan with the logic board, friction seems to keep it in place.
Click to expand...

I mean to re-seat the cable to fix the cutting out issue? Did you remove the Logic Board or was it simply a trivial fix?
 
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