Hi Thomas, Hi James, I don't know if it will help solve the problem, but you should be aware that the motor control on the floppy is not just a simple on/off setup. These drives are variable speed, but I am not sure sure if the speed control signals come from the computer or the onboard drive logic. HTH, Rick
>> The second part: I have a partially defect I/O Board from a 2/10. The floppy >> doesn't turn, but everything else works, even the write/read head of the >> floppy moves during the boot proceedure. Does anyone know what IC or >> transistor does support the floppy-drive spinning-motor? > > Try a different floppy drive. For the 3.5 inch drives, I think the motor > control is done in the drive. However, there are motor signals coming from > the I/O board... U3E pins 6 & 7, U4F-7 & 9. > > Certainly when you shove in a floppy, the drive turns the motor by itself > to get the index pin to latch into the floppy's hub. So if you shove in a > floppy and the drive doesn't turn at all, the floppy drive is broken. > > It could be as simple as the drive doesn't see that you inserted a > floppy... there is a little switch or opto-interrupter that is pressed down > when a floppy drops down. If the switch is broken, or the floppy doesn't go > all the way down, the motor won't turn. -- LisaList is sponsored by <http://lowendmac.com/> and... Shop buy.com and save. <http://lowendmac.com/ad/buy.com.html> Support Low End Mac <http://lowendmac.com/lists/support.html> LisaList info: <http://lowendmac.com/lists/lisa.html> Send list messages to: <mailto:[EMAIL PROTECTED]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive: <http://www.mail-archive.com/lisalist%40mail.maclaunch.com/> Using a Macintosh? Get free email and more at Applelinks! <http://www.applelinks.com>
