[iBook] dead display

[Wegener Media]

I might add an addendum to this..   IF your iBooks have run out of 
warranty and you can't strong-arm Apple into helping, don't despair.. 
Email me-there is a way to get them repaired short of a full logic 
board replacement.



Dave





>We have seen a pretty high number of the 12 & 12" G4 iBooks show the 
>same (or similiar) issues with video, as did the early G3 iBooks. 
>Unfortunately, Apple has successfully held off a class-action suit 
>against the G4's, so this has gone without any warranty coverage to 
>date.
>
>The symptoms are usually either video issues color streaks,bars, 
>random lockups when the colors show up, and a few which are not 
>showing video at all.
>
>The only answer I would have for this would be to make sure the 
>laptops are not being used in a way which torques/warps the lower 
>case.  Teachers (and students) often use the laptop on uneven 
>surfaces, causing the case (and logic board) to warp.  This 
>pressures the video chip and the processor, and they develop 
>hairline cracks.
>
>hope this helps...
>
>Dave
>
>
>
>>Greetings iBook listers
>>A teaching colleague has just come around with her G4 14"iBook. She 
>>was working on her school reports when her screen developed 
>>problems. It suddenly cut out to 1 second screens of red, green, 
>>blue, etc. When she bought it around, it fired up okay so thought I 
>>would repair permissions and do an Open Firmware reset, not really 
>>believing they were the problem. But then the colours struck (I've 
>>never seen this before - nvram fault/ logic board?). After leaving 
>>it with the battery out for 30 mins, I tried an Open Firmware 
>>restart, then tried plugging in an external monitor (just stays 
>>black) and also tried Target mode (doesn't show up on other 
>>machine).
>>One thing I did notice was that it has no start up chime.
>>I left it for a couple of hours and tried it again. When I opened 
>>it up (I think it may have been left going but hard to tell) the 
>>fan started and ran for an abnormally long time. Then I tried to 
>>start it in Open Firmware but although I was holding down the kyds, 
>>it started normally. Unfortunately, I didn't have the user's 
>>password and so I had to ring her. I got this off her and started 
>>to drag stuff off onto an external drive. I had just got the 
>>precious reports off and was trying to grab all her other documents 
>>when it went into the coloured screens again - red, blue, green, 
>>grey, black, cycling through endlessly. I have now shut it again in 
>>the hope I can get a little more off it. It seems to go for 3 mins 
>>before going into this cycle. I'll try timing it next time. Any 
>>thoughts on the problem and solution?
>>This particular school has had an incredible run of problems with 
>>their iBooks. This teacher is on her second after endless problems 
>>with her first and it is only 16 weeks old. Another teacher had 4 
>>logicboard repairs until they replaced hers and the Principals was 
>>also replaced. I wonder about some bad practice in their use of 
>>their laptops. I understand that there is a design fault in the 
>>hinging of the screen putting pressure onto the logicboard. I have 
>>always encouraged kids to either have the screen fully open or 
>>shut, not 'play' with the catch opening and closing the lid as they 
>>are prone to do. Any thoughts as to why they have been so beset 
>>with problems and possible solutions. This is only a 8 teacher 
>>rural school and the young teacher in charge of computing is 
>>tearing her hair out coping with the number of computers she has to 
>>take in for repairs. These are all 12" / 14" iBooks.
>>Cheers
>>_______________________________________________
>>iBook mailing list
>>iBook at listserver.themacintoshguy.com
>>http://listserver.themacintoshguy.com/mailman/listinfo/ibook
>>
>>Listmom is trying to clean out his closets! Vintage Mac and random stuff:
>>         http://search.ebay.com/_W0QQsassZmacguy1984
>
>_______________________________________________
>iBook mailing list
>iBook at listserver.themacintoshguy.com
>http://listserver.themacintoshguy.com/mailman/listinfo/ibook
>
>Listmom is trying to clean out his closets! Vintage Mac and random stuff:
>         http://search.ebay.com/_W0QQsassZmacguy1984