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30 November 2006, 17:02
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#1 |
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Zone Friend
Join Date: Dec 2005
Location: Tampere
Age: 40
Posts: 600
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A500 read/write problem
Hey you folks!
My A500 has a nasty problem: When disk is inserted it cannot be recognized if the disk is write protected or not. Since 1995 when I got the machine it has had this problem. I changed the disk drive with 'working one' but this didn't help either. I'm confused, has anyone ideas? |
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30 November 2006, 17:04
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#2 |
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move.w #$4489,$dff07e
Join Date: Sep 2005
Location: Norfolk, UK
Age: 42
Posts: 2,351
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Possibly a dodgy CIA? From memory the R/W status is retrieved from a CIA chip. Or maybe a broken mobo trace nearby?
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30 November 2006, 17:16
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#3 |
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Zone Friend
Join Date: Dec 2005
Location: Tampere
Age: 40
Posts: 600
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Addition to my post: What I mean was that my machine ALWAYS thinks that the disk is NOT write protected. So there is no way to protect the disks with read/write lock.
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30 November 2006, 17:27
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#4 |
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move.w #$4489,$dff07e
Join Date: Sep 2005
Location: Norfolk, UK
Age: 42
Posts: 2,351
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I'll stand by my original post
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