G4 TiBook screen gradually goes black and computer locks up

sdatexas · **Joined:** Fri Apr 25, 2008 10:40 am **Posts:** 1

G4 667 non DVI Powerbook. It operates fine for a bit then the screen acts up or goes black from the bottom up. Then it is frozen. Can get to the HD by booting in Target mode. Removed the battery and it ran for 8 hours then when I touched the trackpad, it did the black screen thing. If I were to guess, i'd say it's a temperature thing, but that's a guess. Any ideas where to start?

Thanks,

sdatexas

powerbookmedic · **Joined:** Mon Feb 24, 2003 1:58 am **Posts:** 944

You likely have a logic board problem. Unfortunately the only way to fix the issue will be to replace the board.

-Bradley
PowerbookMedic

G4 TiBook screen gradually goes black and computer locks up

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