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General Category => Technical support - Hardware related => Topic started by: hifly on 21:11, 06 February 25

Title: Problem connecting 3.5" floppy
Post by: hifly on 21:11, 06 February 25
Hi,

I followed every step in cpcwiki page to prepare the cable to connect 3.5" inch floppy. However when i want to change the drive to B, both of the drives start to work and  original floppy of the Amstrad keep buzzing forever.  I am pretty sure i shorted 33rd and 34th pins correctly. After turning on the Amstrad, 3.5" floppy's light is off as it should be i assume. And i am not using the twisted part of the cable. There is a floppy in new drive and i am having read error message because it is not yet formatted i guess.

I tried to short pin 11 and 12 to use the new drive as primary after turning on the computer. But i still have the same issue. Do you have any idea what is the problem? 

Title: Re: Problem connecting 3.5" floppy
Post by: Bryce on 21:22, 06 February 25
Hi,
    what's the make and model of the drive and what guide did you follow?

Bryce.
Title: Re: Problem connecting 3.5" floppy
Post by: hifly on 21:43, 06 February 25
It says:

ALP ELECTRIC CO LTD
DF354H(121G)

And i used this guide:

https://www.cpcwiki.eu/index.php/Guide_on_how_to_connect_a_3.5
Title: Re: Problem connecting 3.5" floppy
Post by: St-BeidE(DE/GB) on 22:39, 06 February 25
I'd be happy to see some pictures of
your setup. A detailled one of the connectors
too, please.

Stefan 
Title: Re: Problem connecting 3.5" floppy
Post by: Audronic on 00:32, 07 February 25
@hifly 

Here is a zip of some info for some alps models

Krrp Safe

Ray
Title: Re: Problem connecting 3.5" floppy
Post by: xesrjb on 07:05, 07 February 25
Quote from: Audronic on 00:32, 07 February 25@hifly

Here is a zip of some info for some alps models

Krrp Safe

Ray
This one is good. I changed it twice and it runs...

xesrjb 
Title: Re: Problem connecting 3.5" floppy
Post by: hifly on 07:13, 07 February 25
Quote from: St-BeidE(DE/GB) on 22:39, 06 February 25I'd be happy to see some pictures of
your setup. A detailled one of the connectors
too, please.

Stefan
I will post them when i get home, thank you.
Quote from: Audronic on 00:32, 07 February 25@hifly

Here is a zip of some info for some alps models

Krrp Safe

Ray
Jesus Christ, i have to mod the driver? With all my perfect soldering skills?  ;D Well, i moded my mp2 for a scart output. But those tiny chip legs scare me not gonna lie. I will give it a try, thank you :)
Title: Re: Problem connecting 3.5" floppy
Post by: unay on 09:37, 10 February 25
Hi my friend,

As i know you don't have 3" floppy disks. And you don't plan to use it.
So, don't risk it and just cancel the 3" drive and enjoy 3.5" floppy.  ;)
Title: Re: Problem connecting 3.5" floppy
Post by: GUNHED on 16:45, 12 February 25
Please don't use the 33-34 shortcut hack to have a Ready signal!!!
It will cause problems!
Please use a floppy which does provide a Ready signal.  :)
Title: Re: Problem connecting 3.5" floppy
Post by: xesrjb on 20:04, 12 February 25
Quote from: GUNHED on 16:45, 12 February 25Please don't use the 33-34 shortcut hack to have a Ready signal!!!
It will cause problems!
Please use a floppy which does provide a Ready signal.  :)
With the modification made by me, you will have a ready signal...

xesrjb 
Title: Re: Problem connecting 3.5" floppy
Post by: GUNHED on 21:52, 12 February 25
Quote from: xesrjb on 20:04, 12 February 25
Quote from: GUNHED on 16:45, 12 February 25Please don't use the 33-34 shortcut hack to have a Ready signal!!!
It will cause problems!
Please use a floppy which does provide a Ready signal.  :)
With the modification made by me, you will have a ready signal...

xesrjb
For CP/M, symbos and FutureOS? Great! Please post a link here for the people who don't know it now.  :) :) :)
Title: Re: Problem connecting 3.5" floppy
Post by: xesrjb on 06:19, 13 February 25
Quote from: GUNHED on 21:52, 12 February 25
Quote from: xesrjb on 20:04, 12 February 25
Quote from: GUNHED on 16:45, 12 February 25Please don't use the 33-34 shortcut hack to have a Ready signal!!!
It will cause problems!
Please use a floppy which does provide a Ready signal.  :)
With the modification made by me, you will have a ready signal...

xesrjb
For CP/M, symbos and FutureOS? Great! Please post a link here for the people who don't know it now.  :) :) :)
Look at #4...

xesrjb 
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