Solid drive light on Unidisk 5 1/4 drive, not able to read disks.

[ikethederg]

My Apple Unidisk 5 1/4 disk drives doesn't read disks. Drive lights stay solid on both drives.

 

[bibilit]

What computer have you got and trying to boot from ?

 

[ikethederg]

Apple iie. Controller card works with my Floppy Emu.

 

[bibilit]

First step is to look for a dirty head or a wrong spinning speed.

Most troubles are related to one of both issues

 

[ikethederg]

I have cleaned the heads on both drives.

 

[bibilit]

And concerning speed ? Should be 300 rpm or better 299 rpm

 

[ikethederg]

I do not know how to check speed.

 

[waynestewart]

Try it with just one drive connected. If it doesn’t work then try it with just the other drive connected

 

[ikethederg]

Same issue. The motor constantly runs with no disk inserted.

Try it with just one drive connected. If it doesn’t work then try it with just the other drive connected

 

[bibilit]

IIRC this is more or less an usual behavior, only the IIc will stop and display the « check the Disk drive » message.

Csa2 Apple II FAQs FLOPPY DISK DRIVES

Adjustment of 5.25 floppy drive speed - Apple II FAQ

Important: this is an excerpt from the Applebox site copied with permission Although there are a lot of software programs out there to adjust the speed of a drive I will only comment here a selection of the 3 most common ones and will leave those from the shareware market aside, due to the fact...

www.apple2faq.com

 

[waynestewart]

An Apple IIe 5.25” drive will run forever with no disk inserted.