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  1. bwinkel67

    New theory on the cause of the infamous Tunnel Vision problem - Testers needed!

    Don't know...but my wife and I are still kicking around and the extra arm that's growing out of my back has been useful :) I don't think it's heated enough to release lots of chemicals into an oven.
  2. bwinkel67

    New theory on the cause of the infamous Tunnel Vision problem - Testers needed!

    Which reminds me of the one tests I wanted to try but again, fixed the screen before I thought of it: place PowerBook in refrigerator but turned on. Before anyone does that though, does 40 degrees damage a laptop? I've seen people use a laptop outside in the winter time while it's in the 30's...
  3. bwinkel67

    New theory on the cause of the infamous Tunnel Vision problem - Testers needed!

    I wanted to give an update on my 100 degree celcius baked PB180 after 6 months. Now I don't use it daily but when I do use it, it's running for hours. I even taught a class with it recently to demonstrate cooperative multitasking to students in an operating systems class (the old Mac's are a...
  4. bwinkel67

    New theory on the cause of the infamous Tunnel Vision problem - Testers needed!

    That sounds interesting. Can you point me to where you saw that?
  5. bwinkel67

    New theory on the cause of the infamous Tunnel Vision problem - Testers needed!

    Interesting video on making of TFT LCD. There is a baking process but that happens after each etched layer. It seems that the sealant is created to keep the liquid crystals contained. So maybe there is a leak between layers? I know there was a YouTuber that was creating their own LCD's at home...
  6. bwinkel67

    New theory on the cause of the infamous Tunnel Vision problem - Testers needed!

    Oh, for those that want to bake it....some ovens can vary 30 degrees in both directions (so a 60 degree farenheit swing). We had an old gas stove that only swung about 10 - 15 degrees farenheit. One thing that helped was adding a couple of pizza stones that, once heated, helped keep the temp...
  7. bwinkel67

    New theory on the cause of the infamous Tunnel Vision problem - Testers needed!

    So I've had some success with the tunnel vision issues on my PowerBook 180. My screen starts out ok for 15 minutes and then develops the black areas. It goes slowly but after 90 minutes it gets bad. So I baked the screen at different temperatures with different results. First I tried YouTuber...
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