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Re: [emax] Emax (first one) without floppy...?

2004-10-30 by Ted Summers

as far as the HD upgrade- I want one too. Let Route66 Studios know you  
are interested. Rob @ Emu Archive earlier decided there wasn't enough  
interest to make a kit. Route 66 was looking into maybe doing it also.  
I'm willing to pay $100 to get that functionality in mine....

link to route66 is on Emu-archives site...

Thanks,
Ted
On Oct 30, 2004, at 2:14 AM, Micke Askern�s wrote:

> Hey!
>
>  The thing is .. if i change the faulty drive to a working drive i  
> have in my
>  OTHER emax, my emax boots just fins from the zipdrive as it should...
>
>  The disk drive has boot priority, and if there is some way of  
> changing that,
>  I would be home free.
>
>  Since the faulty drive thinks it has a disk inserted, it complains  
> constantly
>  that there is an unusable disk inserted in the drive, when it is  
> trying to
>  boot from the floppy (as earlier explained due to malfunction) ...
>
>  If i remove the drive altogether, the machine NEVER boots, since it  
> is stuck
>  in the diagnostics screen.
>
>  Also note that this is the original emax .. there might be a  
> different issue
>  with the emax II .. i have the plus os installed i think .. i'll  
> double check
>  that... ;)
>
>  like i said. in worst case, i have found that if i unplug the power  
> cord when
>  the drive is trying to access its nonexistent floppy, the boot  
> procedure
>  continues and the machine boots as it should from zipdrive.
>
>  I need the floppy in my other emax as I have no zip, no nothing in  
> that
>  one .. (yet) ..
>
>  Anyone who have a scsi upgrade kit for an emax with version2 of the  
> digital
>  board? .. according to emulatorarchive, my emax can be modified, i  
> just need
>  the circuits ;)
>
>  //Micke
>
>  On Sat, 30 Oct 2004 09:52:20 +1000, Damon Crowe wrote
>  > hi!
>  >
>  > I've just this minute seen this thread, but my I think my old emax  
> II r/m
>  > used to boot from hd?....
>  >
>  > I'll get back to you on this....
>  >
>  > duh,
>  >
>  > damon....
>  >
>  > ----- Original Message -----
>  > From: "Micke Askern�s" <micke@...>
>  > To: <emax@yahoogroups.com>
>  > Sent: Friday, October 29, 2004 8:43 PM
>  > Subject: Re: [emax] Emax (first one) without floppy...?
>  >
>  > >
>  > > Well .. i KNOW its toast.. but i dont WANT to get a replacement  
> cause
>  i've
>  > > never used it .. =)
>  > >
>  > > I want the darn emax to stop trying to boot from floppy and boot  
> from my
>  > > built in zipdrive instead... I cant remove the floppy cause the  
> self
>  > > diagnostics never get past the diagnostics screen when booting up  
> .. =)
>  > >
>  > > I dont want to pay what 70$ us, plus shipping to sweden for a  
> component
>  > that
>  > > i never use and do not need .. ;)
>  > >
>  > > If worst comes to worst, I'll just add a switch that will cut  
> power to
>  the
>  > > floppy after self diagnostics screen has passed ... that way it  
> will boot
>  > on
>  > > my zipdrive instead...
>  > >
>  > > my guess is that it is a mechanical fault with the drive that  
> thinks it
>  > has a
>  > > disk in it .. if so, it should be fixable so the floppy at least  
> doesnt
>  > think
>  > > there's a drive in it ... but might not work anyway.. which would  
> be
>  > fine...
>  > > cause the startup wouldnt halt ;)
>  > >
>  > > //Micke
>  > >
>  > > On Fri, 29 Oct 2004 01:13:04 -0700 (PDT), Bob Conner wrote
>  > > > Sounds like the drive is toast. I recommend getting a
>  > > > replacement.
>  > > >
>  > > > Bob
>  > > >
>  > > > --- Micke Askern�s <micke@...> wrote:
>  > > >
>  > > > > Thanks for the tip Bob, unfortunately it keeps on
>  > > > > accessing the drive and
>  > > > > returning with the error message that the disk isn't
>  > > > > formatted ... regardles
>  > > > > if there is or isnt a floppy in the drive =/
>  > > > >
>  > > > > So, my options are:
>  > > > >
>  > > > > 1. find out what mechanics in the floppy that thinks
>  > > > > there is still a disk in
>  > > > > the drive... it is not always hanging, but sometimes
>  > > > > it actually manages to
>  > > > > pass through this state, and sees that there is no
>  > > > > disk ....
>  > > > >
>  > > > > What is it in a floppy that sends a signal "hey,
>  > > > > i've got a disk here!" ...
>  > > > > could it be dirty disk headers or something..? .. or
>  > > > > is it something
>  > > > > mechanical?
>  > > > >
>  > > > > 2. see if there is some way of bypassing the floppy
>  > > > > check during startup, so
>  > > > > it skips checking for diskdrive in diagnostics mode
>  > > > > .... doesnt seem like an
>  > > > > easy option ... (bypass floppy check in some emax
>  > > > > bios?)
>  > > > >
>  > > > > 3. faking the emax with a jumper somewhere that
>  > > > > gives the right signal back
>  > > > > to the machine that there is indeed a floppy. sounds
>  > > > > like a real tough one...
>  > > > >
>  > > > > 4. build in an additional switch that cuts the power
>  > > > > to the floppy when it
>  > > > > acts up.. this way i can get it to boot and i save
>  > > > > some power as well, but
>  > > > > i'd rather not drill another hole in the case
>  > > > >
>  > > > > So ... I have options, but I'm working on trying to
>  > > > > get #1 fixed... if i cant
>  > > > > do that, i know that option #4 WILL work (works fine
>  > > > > to just unplug the power
>  > > > > cable to the floppy when it is being a jerk) but it
>  > > > > is a dirty option imho ;)
>  > > > >
>  > > > > Any other input and tips on how to get this work?
>  > > > >
>  > > > > thanks,
>  > > > > Micke
>  > > > >
>  > > > >
>  > > > > On Wed, 27 Oct 2004 17:26:41 -0700 (PDT), Bob Conner
>  > > > > wrote
>  > > > > > I believe the "disk in drive" change disk signal
>  > > > > goes
>  > > > > > down one specific wire in the cable but I can't
>  > > > > > remember which.
>  > > > > > I suppose you could install a switch.
>  > > > > >
>  > > > > > I remember doing a lab on this in computer repair
>  > > > > > school, but it's been several years.
>  > > > > >
>  > > > > > Have you tried putting a blank disk in the drive?
>  > > > > > Perhaps it will go to the zip if it can't read the
>  > > > > > floppy.
>  > > > > >
>  > > > > > --- Micke Askern�s <micke@...> wrote:
>  > > > > >
>  > > > > > > Hey all!
>  > > > > > >
>  > > > > > > I have a problem with a faulty floppy drive on
>  > > > > one
>  > > > > > > of my machines...
>  > > > > > > The floppy has a mechanical fault, so it thinks
>  > > > > > > there is a disk in it,
>  > > > > > > therefor bypassing booting from my zipdrive...
>  > > > > > >
>  > > > > > > I can bypass it by unplugging the power chord
>  > > > > from
>  > > > > > > the floppy AS it is
>  > > > > > > trying to read from a non existent diskette, but
>  > > > > > > other than that, it is
>  > > > > > > pretty much stuck..
>  > > > > > >
>  > > > > > > Also, I've tried disconnecting the floppy from
>  > > > > the
>  > > > > > > motherboard, but this
>  > > > > > > causes the emax to hang in diagnostics mode, and
>  > > > > not
>  > > > > > > boot up at all, due to
>  > > > > > > it not getting any clearance from the floppy
>  > > > > drive..
>  > > > > > >
>  > > > > > > So .. i was wonderinf, is there some way of
>  > > > > > > bypassing the diagnostics mode,
>  > > > > > > or, search for floppy? It is my guess that it is
>  > > > > > > sending something out to
>  > > > > > > the floppy and is awaiting a signal in return
>  > > > > ...
>  > > > > > > anyone here have any
>  > > > > > > knowledge about this?
>  > > > > > >
>  > > > > > > thanks in advance... in worst case i'll have to
>  > > > > add
>  > > > > > > a switch on top of the
>  > > > > > > emax to shut off power to the floppy when it is
>  > > > > > > trying to boot... ;)
>  > > > > > >
>  > > > > > > //Micke
>  > > > > > >
>  > > > > > >
>  > > > > >
>  > > > > >
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