a1200 df0 problem, mother board?

02 March 2015, 14:35

Hello again,

Well Amiga things are giving from bad to worse. I have just tried to format a floppy in my towered A1200 and it left the dusk unscathed. All the files were still there. I tried to delete a file, same non-result. Writing a file to the disk appears to kill the floppy, resulting in a checksum error.

I can read floppies fine, just not write and have tried this using the original internal drive as well as a new one from Amiga Kit.

I am guessing its either the cable, which is loose and I have ordered a replacement or a strange motherboard fault, in which case... erm no idea actually.

Google shows one mention of a similar problem with someone else's A1200 back in 2007, with no solution.

Anyone any ideas?

FOL · 02 March 2015, 15:03

Hi,

What about external floppy drive?

Quote:

Originally Posted by Abdabs

Hello again,

Well Amiga things are giving from bad to worse. I have just tried to format a floppy in my towered A1200 and it left the dusk unscathed. All the files were still there. I tried to delete a file, same non-result. Writing a file to the disk appears to kill the floppy, resulting in a checksum error.

I can read floppies fine, just not write and have tried this using the original internal drive as well as a new one from Amiga Kit.

I am guessing its either the cable, which is loose and I have ordered a replacement or a strange motherboard fault, in which case... erm no idea actually.

Google shows one mention of a similar problem with someone else's A1200 back in 2007, with no solution.

Anyone any ideas?

03 March 2015, 19:11

Hi,
Many thanks for the reply.
I tried an external drive and sadly it has the same problem. Formatting and deleting has no effect at all.

I spoke to the folk at Amiga Kit and they had never heard of this problem. Apparently mother board probe usually s how other probe, so far I have none.

I'm baffled.

Any ideas?

supaduper · 03 March 2015, 20:01

Well you have eliminated the drive and cable you tried another drive so its not that, I will imagine it is a fault on the motherboard, I think either one the a CIA chips( even one I think) or the Gayle chip for starters as these deal with signals to the floppy.
why not have amigakit repair it? if not try and get a replacement motherboard

Nobby_UK · 04 March 2015, 22:23

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02 March 2015, 14:35	#1
Abdabs Posts: n/a	a1200 df0 problem, mother board? Hello again, Well Amiga things are giving from bad to worse. I have just tried to format a floppy in my towered A1200 and it left the dusk unscathed. All the files were still there. I tried to delete a file, same non-result. Writing a file to the disk appears to kill the floppy, resulting in a checksum error. I can read floppies fine, just not write and have tried this using the original internal drive as well as a new one from Amiga Kit. I am guessing its either the cable, which is loose and I have ordered a replacement or a strange motherboard fault, in which case... erm no idea actually. Google shows one mention of a similar problem with someone else's A1200 back in 2007, with no solution. Anyone any ideas?

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03 March 2015, 19:11	#3
Abdabs Posts: n/a	Hi, Many thanks for the reply. I tried an external drive and sadly it has the same problem. Formatting and deleting has no effect at all. I spoke to the folk at Amiga Kit and they had never heard of this problem. Apparently mother board probe usually s how other probe, so far I have none. I'm baffled. Any ideas?

03 March 2015, 20:01	#4
supaduper Registered User Join Date: Oct 2012 Location: Krypton Posts: 1,214	Well you have eliminated the drive and cable you tried another drive so its not that, I will imagine it is a fault on the motherboard, I think either one the a CIA chips( even one I think) or the Gayle chip for starters as these deal with signals to the floppy. why not have amigakit repair it? if not try and get a replacement motherboard

04 March 2015, 22:23	#5
Nobby_UK Registered User Join Date: Jul 2013 Location: Liverpool Posts: 2,598	[ Show youtube player ]

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