Hello Ruud,
Yes, there is a 720-D. Take a look at it at:
http://www.zimmers.net/cbmpics/cb720.html
About half-way down the page is a picture of the internal drive. We also
know there was a 720-D due to it being printed on the boxes of other CBM-II
high profile machines.
As to your question, though: Yes. I did connect it to another drive. In
fact, I connected the internal 720 cable to the internal drive of my 8296D.
That worked fine. The problem must be in the drive, I just don't know
where....
- Bo
> -----Original Message-----
> From: owner-cbm-hackers@cling.gu.se
> [mailto:owner-cbm-hackers@cling.gu.se]On Behalf Of Baltissen, R (Ruud)
> Sent: Friday, November 09, 2001 1:16 AM
> To: 'cbm-hackers@cling.gu.se'
> Subject: RE: I'm ashamed to be asking this, but...
>
>
> Hallo Bo,
>
> > I received the 720-D "disassembled".
>
> You mean there exists a CBM 720 with built in drives like the CBM 8296D?
>
> > The symptom is this: I enter a drive command, the error
> > light comes on. No drive movement. If I THEN read the error
> > channel (?ds$) I get nothing. If I read it directly
> > (input#1,a,a$,b,c) I get 0, blank, 0,0.
>
> Maybe a stupid question: what happens if you do
> (input#1,a,a$,b,c) without a
> drive attached? Your "0, blank, 0,0" looks like showing un-initialised
> variables ie. the showed data has not been read at all.
> My guess is that something on the I/O part is brooken, either the
> computer-
> or driveside. You can test wether part it is the drive or computer by
> connecting another drive or computer to the 720 and its drive. This
> crosstest should reveal which part is actually to blame.
> The fact that the error LED flashes means IMHO that it doesn't understand
> the command ie. the handshaking is alright so the trouble is in the
> databits.
> ___
> / __|__
> / / |_/ Groetjes, Ruud
> \ \__|_\
> \___| http://Ruud.C64.org
>
>
>
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