68kMLA Classic Interface

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PB 150 screen issue

Posted by: oldmacs on 2013-05-10 05:40:16 photo-3 by oldmacs, on Flickr Just wondering what that could mean- It is on my PowerBook 150- It shows up sometimes and disappears and reappears while using the laptop.... Anyone have any idea? Thanks 🙂 Oldmacs

Posted by: Macdrone on 2013-05-10 07:48:48 delamination of the screen cable to the screen or bad caps. Many threads on this. I think someone even posted a repair they made with the list of capacitors.

Posted by: oldmacs on 2013-05-13 00:32:18 Is there any chance it could be to do with a slightly dodgy power adaptor?

Posted by: JRL1511844959 on 2013-05-13 00:34:10 Nah, I doubt it. One of my 160s had this issue and it wound up being bad caps.

Posted by: oldmacs on 2013-05-13 07:00:50 Dam..... Oh well looks like eventually it will need cap replacement :/

Posted by: techknight on 2013-05-16 18:56:25 COF IC is bad, replace panel.

Posted by: oldmacs on 2013-06-08 05:59:12 What is a COF IC, and where can I get a replacement?

Posted by: techknight on 2013-06-08 09:04:57 COF = chip on film. Not entirely sure about that old of a panel, but the newer stuff the chip is epoxied/part of the film ribbon going to the panel and there is no replacement.

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