With machines only using 1 drive, it is easier to leave the cable untwisted instead of wasting time (and money) adding the twist as there is no need to intervene in the future anyhow. This is so that, without any "human" intervention, all floppies can be set the same way from the factory and by simply choosing the connector one assigns it the drive letter (A or B) as the twist takes care of switching the signals. What this twist does, is switch drive enable and motor enable signals so that the last floppy receives these signals switched around. The twist involves exactly these lines including their adjacent grounds (from 10->16 included). If you have noticed, floppy flat cables have a twist in the last most upper connector where usually floppy A is connected. Pins 10, 12, 14 and 16 are the drive select (A/B) and motor select (A/B) lines which activate and enable Floppy A or B as per standard (each floppy controller was designed to support a max of 2 drives). This leaves us with 16 real signal lines. In these 34 lines that go to your floppy, 18 of them are ground and 3 are not used.
Akai quick disk serial#
The actual data is pulsed on one single line when written and another line when read from so it is a purely serial concept design. Infact, all the lines in your floppy flat cable have a different purpose, each to select or enable a function like step the motor, enable the writing, check if the floppy is inserted and see if it is high or low density. This was the beginning of the floppy era standard, based on serial signals similar to the I2C concept. Many years ago (around 1971 if I remember correctly) the first 8" floppy units appeared made by IBM and subsequently made/copied in the east used by the first machines (not necessarily PCs).
Akai quick disk how to#
Change floppy disk and try again and read the data back to check it's integrity.ĪKAI's floppy standard (you can skip this paragraph if you're not interested)īefore I venture in explaining what how to change and set the new floppy, I'd like to mention a few words on why the floppy unit in the AKAI's are not "PC compatible" out of the box. If one insits, this can also ruin the data on a previously "healthy" floppy - so do not insist when writing to a floppy if an error occurs. Intervening with a isopropyl alcohol and a head cleaner will seldomly help as the tolerances have become so large that the mechanism is not able to "go where it wants to precisely" anymore. This is due to the head positioner (corkscrew / Archimedes screw) tolerances and due to dust/oxidization buildup on the heads (especially if you smoke and are in a dusty room or use low quality floppies).
Akai quick disk Pc#
Q) Can I replace my AKAI floppy with a normal PC floppy drive?Ī) Unfortunately, like all mechanical "friction" devices, the floppy drive tends to fail after some prolongued usage. Q) My AKAI is reporting that the floppy is not recognized/formatted but it works fine on another machine Q) I'm having intermittent problems in accessing my floppies
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