Wild-hair floppy drive question

[Randy McLaughlin]

From: "Randy McLaughlin" <cctalk at randy482.com>
Sent: Monday, June 13, 2005 5:57 PM


> From: "Tony Duell" <ard at p850ug1.demon.co.uk>
> Sent: Monday, June 13, 2005 4:45 PM
>
>
>>>    Well, I found a couple of 3.5" drives that can be jumpered, and the
>>> Altos doesn't recognize 'em at all.  I suspect it wants a drive that
>>> does DD only.
>>
>> Wild guess. Pin 34 changed its definition at some point (IIRC it used to
>> be Rdy/, it bacame disk_change/). Maybe that's your problem.
>>
>>>
>>> > If not a TEAC FD55GFV will work as a DSQD 5.25".
>>>
>>>    Do you have the jumper settings for that?  TEAC's documentation
>>> drives me up the wall.  I have an FD55GFR that I can make boot and read,
>>
>> The thing that really annoys me about the Teac documentation is that the
>> jumpers are not explained in the service manual (and on later drives with
>> one big ASIC, you can't really work them out). OK, they're probably in
>> the OEM manaul, or something, but if all you have is the service manual,
>> that's not a lot of help...
>>
>> -tony
>
>
> I'll lookup the exact Teac jumpers but not only do you have to change the 
> two speed jumper but you must make sure pin 2 is grounded to select the 
> correct speed.
>
> Randy
> www.s100-manuals.com

To make the Teac 1.2mb drive act like a QD drive there are two options:

Jumper I on, LG off, low on pin 2 of the 34 pin connector or Jumper I on, LG 
on, high on pin 2 of the 34 pin connector.


Randy
www.s100-manuals.com