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Old 06-23-2009, 02:24 PM   #1
Trev
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Default A1200 Floppy Issues

So, I have a NOS A1200 1D4 board (NOS is arguable--it's slightly bowed and the shielding on the connectors is oxidized, while the board I'd been using for the last ten years looks brand new), and every floppy drive I attach to it seeks three times then fails to read the inserted disk. I've seen the issue posted before, but without an accompanying resolution. Any ideas?
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Old 06-23-2009, 04:06 PM   #2
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Default Re: A1200 Floppy Issues

Make sure your using the correct cable without twist. Try another cable. Can you format a floppy, if you can format and read a floppy but cannot read original floppy disks the Drive may be out of alignment. If however you say you tried multiple drives I would think all should not be misaligned.
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Old 06-23-2009, 04:17 PM   #3
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Default Re: A1200 Floppy Issues

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Originally Posted by amiga92570 View Post
Make sure your using the correct cable without twist. Try another cable. Can you format a floppy, if you can format and read a floppy but cannot read original floppy disks the Drive may be out of alignment. If however you say you tried multiple drives I would think all should not be misaligned.
Yeah, I've tried multiple known good drive and cable combinations. I think formatting a floppy produced the same result--three seeks followed by an error from the format tool--but I'll try it again just to be sure. But yeah, I don't think it's an alignment issue.
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borked A1200/Blizzard1260+SCSI-IV/Z4+MediatorZIV/Deneb/Voodoo3/CatweaselMk3
more borked A1200/MBX1200z/Indivision
A500/clockport/RRNet
A600/A603
Power Mac G4 QuickSilver/MorphOS 2.6

Last edited by Trev; 06-23-2009 at 04:20 PM..
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Old 06-23-2009, 04:51 PM   #4
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Default Re: A1200 Floppy Issues

Does it work if you write protect the disk?
My A3k will use write protected disks fine... If I stick in one that does not have write protect on, it will do as you describe. And further, once the disk has been inserted without write-protect, it is ruined... (well on my machine anyway)
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Old 06-23-2009, 06:35 PM   #5
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Default Re: A1200 Floppy Issues

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Originally Posted by CSixx View Post
Does it work if you write protect the disk?
My A3k will use write protected disks fine... If I stick in one that does not have write protect on, it will do as you describe. And further, once the disk has been inserted without write-protect, it is ruined... (well on my machine anyway)
The write protect tab doesn't make a difference.
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more borked A1200/MBX1200z/Indivision
A500/clockport/RRNet
A600/A603
Power Mac G4 QuickSilver/MorphOS 2.6
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Old 06-24-2009, 02:26 PM   #6
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Default Re: A1200 Floppy Issues

do you have an other amiga ?
Possibly half dead control chips, or old grease in your drive
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