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Message

Re: Nothing but "nd"

2009-10-30 by got_hatchet

So how did you fix the ND error? Im having the same problem and was watching your posts.

--- In prophet2000@yahoogroups.com, Rob Miller <huskies@...> wrote:
>
> Edo,
> 
> I was able to disassemble my original drive and carefully clean the
> transport rod that the head goes on.  It was full of dried lubricant,
> acting like glue.
> 
> Rob
> 
> edo_arengi wrote:
> > Hi all!
> > 
> > It's me again! I found some info regarding my problem searching the forum: "Lh" means "locked head" so my floppy drive is probably gone.
> > What a great forum! I am happy to have a Prophet VS and now this new 2002, I hope to get it up and running :-)
> > 
> > Edo
> > 
> >  
> > 
> > --- In prophet2000@yahoogroups.com, "edo_arengi" <edoardo.arengi@> wrote:
> >> Hi!
> >>
> >> I just joined this group. Today I got an used 2002 and unfortunately I have problems with the floppy drive. But istead of getting the "nD" message I get again and again a bliking "Lh" message. If I i.e. choose to format a floppy I put into the drive, the drive gives a spin, the red light lights for 1 second or so and I get that "Lh" on the screen.
> >>
> >> Any idea?
> >>
> >> Thank you!
> >>
> >> Edo
> >>
> >>
> >>
> >> --- In prophet2000@yahoogroups.com, Rob Miller <dpc318@> wrote:
> >>> Well, I replaced the 7406 buffer chip between the floppy controller and 
> >>> the drive, and while the individual logic is better on the chip, it
> >>> did not resolve my "nD" issue.
> >>>
> >>> My drive seems to be spinning all the time while a disk is in it,
> >>> with the red LED on.  Is this normal?  I don't remember.
> >>>
> >>> Rob
> >>>
> >>> Henrik wrote:
> >>>>  
> >>>>
> >>>> It was a temporary problem on mine. Now it works again.
> >>>>
> >>>> --- On *Tue, 10/13/09, Rob Miller /<dpc318@>/* wrote:
> >>>>
> >>>>
> >>>>     From: Rob Miller <dpc318@>
> >>>>     Subject: Re: [prophet2000] Re: Nothing but "nd"
> >>>>     To: prophet2000@yahoogroups.com
> >>>>     Date: Tuesday, October 13, 2009, 3:03 AM
> >>>>
> >>>>      
> >>>>
> >>>>     Well, I might be making some progress. There's a "buffer" chip, a 7406,
> >>>>     that's identified as U201. It sits between the floppy controller and
> >>>>     the header P202. On two of the hex inverted pairs they don't seem to
> >>>>     be inverting the signals. Namely, pins 1/2 and 3/4.
> >>>>
> >>>>     Does anyone have a clean copy of the schematics? I'm having a hard
> >>>>     time ready what each of the pins do on the online version. This is
> >>>>     on what appears to be drawing SD 2000-2.
> >>>>
> >>>>     This is a very inexpensive part, so I might just pull it, socket
> >>>>     a new one, and try.
> >>>>
> >>>>     Rob
> >>>>
> >>>>     Henrik wrote:
> >>>>      > Same problem here too.
> >>>>      >
> >>>>      > --- On Thu, 10/8/09, j. aaron <tomkah@yahoo. com
> >>>>     </mc/compose?to=tomkah%40yahoo.com>> wrote:
> >>>>      >
> >>>>      > From: j. aaron <tomkah@yahoo. com
> >>>>     </mc/compose?to=tomkah%40yahoo.com>>
> >>>>      > Subject: Re: [prophet2000] Re: Nothing but "nd"
> >>>>      > To: prophet2000@ yahoogroups. com
> >>>>     </mc/compose?to=prophet2000%40yahoogroups.com>
> >>>>      > Date: Thursday, October 8, 2009, 10:51 PM
> >>>>      >
> >>>>      >
> >>>>      >
> >>>>      >
> >>>>      >
> >>>>      >
> >>>>      >
> >>>>      >
> >>>>      >
> >>>>      >
> >>>>      >
> >>>>      >
> >>>>      > ive experienced this same problem
> >>>>      >
> >>>>      > the original 2002 drive died, so i picked up a suitable
> >>>>     replacement on ebay
> >>>>      >
> >>>>      > making sure the jumpers were correctly aligned
> >>>>      >
> >>>>      > same thing, ...drive powers up, disc takes a spin and then 'nd'
> >>>>      >
> >>>>      > since that drive only cost me $10, i decided id try buying another
> >>>>      >
> >>>>      > suitable replacement off ebay (different model than the first),
> >>>>     that i also jumper configured correctly and got the the same result
> >>>>     ...'nd'
> >>>>      >
> >>>>      > i tried switching things around a bit but sort of gave up on it
> >>>>     at that point
> >>>>      >
> >>>>      > im still over $40 ahead of the $70 whine country wanted for a new
> >>>>     one,
> >>>>      >
> >>>>      > so i figured eventually ill try getting another one off ebay sometime
> >>>>      >
> >>>>      > and repeat the process, but i really couldnt find a reason why
> >>>>     those drives werent functioning
> >>>>      >
> >>>>      > this discussion has rekindled my interest in getting my 2002
> >>>>     going again
> >>>>      >
> >>>>      > i put a ton of work into sampling back in the late 80's/early 90's
> >>>>      >
> >>>>      > and id like to revisit some of those sounds
> >>>>      >
> >>>>      > ...heres hoping help arrives!
> >>>>      >
> >>>>      > -yeller
> >>>>      >
> >>>>      >
> >>>>      >
> >>>>      > --- On Thu, 10/8/09, Rob Miller <dpc318@sbcglobal. net> wrote:
> >>>>      >
> >>>>      >
> >>>>      >
> >>>>      >> From: Rob Miller <dpc318@sbcglobal. net>
> >>>>      >
> >>>>      >> Subject: Re: [prophet2000] Re: Nothing but "nd"
> >>>>      >
> >>>>      >> To: prophet2000@ yahoogroups. com
> >>>>      >
> >>>>      >> Date: Thursday, October 8, 2009, 12:06 PM
> >>>>      >
> >>>>      >> I didn't change the jumper on the
> >>>>      >
> >>>>      >> factory drive that selects DS0, and
> >>>>      >
> >>>>      >> the replacement from WC doesn't have any. The power
> >>>>      >
> >>>>      >> cord has to flip
> >>>>      >
> >>>>      >> between the stock and the replacement (and the
> >>>>      >
> >>>>      >> replacement instructions
> >>>>      >
> >>>>      >> indicate so). I have flipped back and forth the data
> >>>>      >
> >>>>      >> cable, since there
> >>>>      >
> >>>>      >> is no real keying to it.
> >>>>      >
> >>>>      >> I hope it's not the driver chip. I can replace
> >>>>      >
> >>>>      >> it, but it should would
> >>>>      >
> >>>>      >> be easier not to. The drive spins up on power up, but
> >>>>      >
> >>>>      >> doesn't seem to
> >>>>      >
> >>>>      >> seek when I try to move data to/from it.
> >>>>      >
> >>>>      >
> >>>>      >> I'll keep poking around and see if I can get the right
> >>>>      >
> >>>>      >> combo working
> >>>>      >
> >>>>      >> now. I appreciate the forum's help!
> >>>>      >
> >>>>      >> Rob
> >>>>      >
> >>>>      >
> >>>>      >> duncan wrote:
> >>>>      >
> >>>>      >>> have you got the jumpers in the right place on the
> >>>>      >
> >>>>      >> drives? I hope when you say "flipped" you don't mean
> >>>>      >
> >>>>      >> "reversed".. .. I killed a floppy drive doing this by
> >>>>      >
> >>>>      >> accident.
> >>>>      >
> >>>>      >>> the floppy disc driver chip is fairly standard, I
> >>>>      >
> >>>>      >> think, but would be a tricky job to replace....
> >>>>      >
> >>>>      >
> >>>>      >>> I have the boards from my 2000, which had a dead
> >>>>      >
> >>>>      >> keyboard controller (which WC couldn't help with- it was a
> >>>>      >
> >>>>      >> custom IC)... let me see if I can locate anything useful on
> >>>>      >
> >>>>      >> them for you, & let me know how you get on. I have to
> >>>>      >
> >>>>      >> strip some bits off them for another forum member whose
> >>>>      >
> >>>>      >> patience must be running out by now.... :-/ I've been a bit
> >>>>      >
> >>>>      >> busy this year....
> >>>>      >
> >>>>      >
> >>>>      >>> --- In prophet2000@ yahoogroups. com,
> >>>>      >
> >>>>      >> Rob Miller <dpc318@> wrote:
> >>>>      >
> >>>>      >>>> I'm hoping I can get some help here....
> >>>>      >
> >>>>      >
> >>>>      >>>> My 2000 is now running 4.3b with a brand new
> >>>>      >
> >>>>      >> drive...but it STILL
> >>>>      >
> >>>>      >>>> gives me "nd" (no disk) whenever I try to do
> >>>>      >
> >>>>      >> anything with the
> >>>>      >
> >>>>      >>>> drive. I can't read factory disks on power
> >>>>      >
> >>>>      >> up, nor can I load
> >>>>      >
> >>>>      >>>> single sounds, and I can't format a disk. I
> >>>>      >
> >>>>      >> get the same "nd"
> >>>>      >
> >>>>      >>>> every time.
> >>>>      >
> >>>>      >
> >>>>      >>>> I've flipped the drive cable, and now have two
> >>>>      >
> >>>>      >> drives (original
> >>>>      >
> >>>>      >>>> and WineCountry new one) and they perform the
> >>>>      >
> >>>>      >> same.
> >>>>      >
> >>>>      >
> >>>>      >>>> Rob
> >>>>      >
> >>>>      >
> >>>>      >
> >>>>      >
> >>>>      >
> >>>>      >
> >>>>      >
> >>>>      >> ------------ --------- --------- ------
> >>>>      >
> >>>>      >
> >>>>      >> Yahoo! Groups Links
> >>>>      >
> >>>>      >
> >>>>      >
> >>>>      >> mailto:prophet2000- fullfeatured@ yahoogroups. com
> >>>>      >
> >>>>      >
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> > 
> > 
> > 
> > 
> > ------------------------------------
> > 
> > Yahoo! Groups Links
> > 
> > 
> > 
> >
>

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