Ampro Littleboard problems..

From: Allison <ajp166_at_bellatlantic.net>
Date: Thu Nov 29 14:34:30 2001

Depending on the Eprom installed a prompt is not always to
be expected. Mine has 3.mumble and does not prompt.

However it does boot most anything bootable it can find including
SCSI hard disk.

Allison

-----Original Message-----
From: Richard Erlacher <edick_at_idcomm.com>
To: classiccmp_at_classiccmp.org <classiccmp_at_classiccmp.org>
Date: Thursday, November 29, 2001 11:13 AM
Subject: Re: Ampro Littleboard problems..


>Though there are many "Little Board" products from Ampro, the ones I have,
which
>are the originals from back in '83 or so, will produce a prompt if you (1)
have
>no floppy attached, or (2) don't have a diskette in it. If it's not
producing
>that prompt, I'd say you need to look elsewhere than the floppy drive.
>
>Aside from single-sided drives, I've never encountered a 48TPI drive that
this
>machine wouldn't boot once it's jumpered for DS0.
>
>Nevertheless, if it's not producing the prompt, something's seriously
wrong.
>There aren't many parts that could be broken, but perhaps you should look
into
>which one it might be. My experience has been that if it doesn't produce
that
>prompt, it won't boot under any circumstances.
>
>Dick
>
>----- Original Message -----
>From: "Gene Buckle" <geneb_at_deltasoft.com>
>To: <classiccmp_at_classiccmp.org>
>Sent: Thursday, November 29, 2001 8:58 AM
>Subject: Re: Ampro Littleboard problems..
>
>
>> > On Wed, 28 Nov 2001, Gene Buckle wrote:
>> >
>> > > I've got a Littleboard I'm tring to bring up. When I feed it a disk,
>> > > and power it up, it will select the drive, spin it and shut down
after
>> > > about 3 to 5 seconds. I never hear a head step. Nothing shows up on
the
>> > > serial port (port a, 9600). The drive I'm using is a Teac
FD-54B-02-U
>> > > and the two jumpers are set to DS0 and IU.
>> >
>> > I presume that is a typo and it really is an FD-55B. Is it terminated?
>> > I assume a straight cable since it is selected. The FD-55s that I use
>> > are jumpered DS0 (for straight cable), HS, IU, and SM on the two main
>> > jumper headers. PM is also jumpered on its own header.
>> >
>>
>> Don, the number on the back of the drive really is FD-54B. As far as
>> termination, I don't know. There is no place for what I would call a
>> "traditional" floppy termination pack. There is a SIP resistor soldered
>> into the board right ahead of the data connector. I don't have the drive
>> in front of me now, but I don't recall seeing "SM" as being a jumper
>> position. I do recall the "HS" labelling however.
>>
>> I don't recall anything marked "PM" at all.
>>
>> Thanks!
>>
>> g.
>>
>>
>>
>
Received on Thu Nov 29 2001 - 14:34:30 GMT