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

Discussion in 'PowerPC Macs' started by 128keaton, Nov 10, 2014.

  1. 128keaton, Nov 10, 2014
    Last edited: Nov 10, 2014

    128keaton macrumors 68020

    128keaton

    Joined:
    Jan 13, 2013
    #1
    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.
     
  2. Altemose macrumors G3

    Altemose

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    Mar 26, 2013
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    Elkton, Maryland
    #2
    Is it always a perfectly consistent 2 seconds?
     
  3. 128keaton, Nov 10, 2014
    Last edited: Nov 10, 2014

    128keaton thread starter macrumors 68020

    128keaton

    Joined:
    Jan 13, 2013
    #3
    Its more like 1.5, but yes, exact same. No lingering.
    EDIT: fixed it, it was crimped cable darn hinge.
     
  4. Altemose macrumors G3

    Altemose

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    Mar 26, 2013
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    #4
    It usually is something annoying like that.
     
  5. 128keaton thread starter macrumors 68020

    128keaton

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    Jan 13, 2013
    #5
    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 [Wiki] post with common problems and solutions for the Titanium PBs since they are plagued with many issues.
     
  6. Altemose macrumors G3

    Altemose

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    #6
    Did you have to remove the Logic Board to fix the issue?
     
  7. 128keaton thread starter macrumors 68020

    128keaton

    Joined:
    Jan 13, 2013
    #7
    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.
     
  8. Altemose macrumors G3

    Altemose

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    Mar 26, 2013
    Location:
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    #8
    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?
     
  9. 128keaton thread starter macrumors 68020

    128keaton

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    Jan 13, 2013
    #9
    I had to remove it
     
  10. Altemose macrumors G3

    Altemose

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    Mar 26, 2013
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    #10
    Quite annoying as it messes the thermal paste up. Either way, I am glad you got it working again!
     
  11. 128keaton thread starter macrumors 68020

    128keaton

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    Jan 13, 2013
    #11
    It does, but I haven't noticed any issues with it getting too hot.
     
  12. Altemose macrumors G3

    Altemose

    Joined:
    Mar 26, 2013
    Location:
    Elkton, Maryland
    #12

    Glad it worked out.
     

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