CPCWiki forum

General Category => Technical support - Hardware related => Topic started by: Overkill on 16:15, 17 March 20

Title: How to check 6128 Plus model's floppy drive speed?
Post by: Overkill on 16:15, 17 March 20
Hi all,


I've spent ages trying to get a 6128 Plus floppy drive to read.  Long story short:- I did get the drive to CAT once, but it wouldn't load anything.  I found that the belt had been replaced, but it still had loads of old belt on both pulleys.  I cleaned it thoroughly, but now I just get read errors all the time.


After trying everything, I swapped the motor from a working drive and it fixed the problem, but unfortunately I now get the same error on the other drive.

I assume it must be a speed issue.  How do I check the speed?   I do have an oscilloscope and also I could probably sort out an external Gotek drive.


Thanks for reading :)





Title: Re: How to check 6128 Plus model's floppy drive speed?
Post by: Overkill on 16:30, 17 March 20
OK, so I though i'd try winging-it and adjust that rubber screw on the top of the motor, it did not seem to want to move, but it might have moved very slightly clockwise, AND NOW IT WORKS!!!! :D
Title: Re: How to check 6128 Plus model's floppy drive speed?
Post by: Overkill on 16:31, 17 March 20
I'd still like some information on how to check the speed though :)
Title: Re: How to check 6128 Plus model's floppy drive speed?
Post by: Bryce on 16:34, 17 March 20
You need to run this program: https://www.cpcwiki.eu/forum/applications/dsktest-v0-1b/msg63868/#msg63868

No scope required.

Bryce.
Title: Re: How to check 6128 Plus model's floppy drive speed?
Post by: Overkill on 17:21, 17 March 20
Thanks for the reply.  So i'd need a second drive to run the software?
Title: Re: How to check 6128 Plus model's floppy drive speed?
Post by: Bryce on 18:35, 17 March 20
Quote from: Overkill on 17:21, 17 March 20
Thanks for the reply.  So i'd need a second drive to run the software?

Yes, you'll need some way of loading that into the CPC. If you don't have that option, you can send the drive to me and I'll calibrate it for you.


Bryce.
Title: Re: How to check 6128 Plus model's floppy drive speed?
Post by: Overkill on 18:50, 17 March 20
Thanks.  Luckily it's working fine at the moment :)
Title: Re: How to check 6128 Plus model's floppy drive speed?
Post by: Bryce on 19:03, 17 March 20
If it's working good enough to read a disk, then you don't need a second drive, you can load that image from the drive you are testing.

Bryce.
Powered by SMFPacks Menu Editor Mod