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Kevin Ko

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Dec 8, 1999, 3:00:00 AM12/8/99
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Hi All,
I used to have a HP48GX calculator and an HP link cable, it worked fine with
my 48. When I tried to hook it up to the 49 it doesn't work. The 49 screen
shows black lines or would not turn on after I plug the connector into the
calculator. I used to use HP explorer, I just downloaded HP Graphing
Calculator PC Connectivity Kit Version 3.0r2. Can anyone offer any advise?
Any help would be greatly appreciated.

Thanx

Kevin

Tacio Philip Sansonovski

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Dec 8, 1999, 3:00:00 AM12/8/99
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Hi.

I'm with a problem to connect my 49 too. Here at home I can connect
my 48 but I can't connect my 49. At my university I can connect the 48 and 49
(my self-made cable are works fine). I'm using the HPCom.

Somebody can help me???

Thanks,

Tacio - hpclub
http://hello.to/hpclub

Keith Farmer

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Dec 8, 1999, 3:00:00 AM12/8/99
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Tacio Philip Sansonovski wrote:
> I'm with a problem to connect my 49 too. Here at home I can connect
> my 48 but I can't connect my 49. At my university I can connect the 48 and 49
> (my self-made cable are works fine). I'm using the HPCom.

If it's a Mac, I've noticed that problem and have given up on a
solution. I noticed, however, that although the Mac can't receive from
the 49, the 49 *can* receive from the Mac, if you check your serial buffer.

Wayne Brown

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Dec 8, 1999, 3:00:00 AM12/8/99
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You may have the wrong cable. There are some cables that work with the
48 but not with the 49. In fact, using one of these can damage your
49. Other cables will work with both calculators. There's a a
description of the different cable types at
http://hpcalc.org/hp49/docs/faq/#ss5.9 (part of the HP49 FAQ).

--
Wayne Brown | "When your tail's in a crack, you improvise
fwb...@bellsouth.net | if you're good enough. Otherwise you give
http://betsyrandle.cjb.net | your pelt to the trapper."
http://urbmyth.cjb.net | -- John Myers Myers, "Silverlock"

Homer Simpson

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Dec 9, 1999, 3:00:00 AM12/9/99
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>Hi All,
>I used to have a HP48GX calculator and an HP link cable, it worked fine
with
>my 48. When I tried to hook it up to the 49 it doesn't work. The 49
screen
>shows black lines or would not turn on after I plug the connector into the
>calculator. I used to use HP explorer, I just downloaded HP Graphing
>Calculator PC Connectivity Kit Version 3.0r2. Can anyone offer any advise?


The usual explanation for these symptoms is usually that your cable is in
fact a 200LX cable, with a HP48 adapter. You can read the HP49 faq for more
details (it's at www.hpcalc.org).

It makes me think... I think I read somewhere a reply by someone from HP to
someone who was asking why HP was trying to make our lives more difficult by
using non-standard connectors (TI and Casio use jack 2.5 connectors). The
answer was that "if it is possible to plug it the wrong way, then someone
will do it". And today, it is possible to damage a HP49 (and probably a HP38
too) by using a HP cable that fits in the connector... Pretty paradoxical!

Homer Simpson
http://zap.to/hsimpson

Barry

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Dec 9, 1999, 3:00:00 AM12/9/99
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I have to agree. The decision to use a connector that's so difficult to
distinguish from another HP connector that will damage the calc was, in my
opinion, just dumb and unprofessional. We don't expect this kind of
thoughtlessness from HP.

I have 2 200lx cables and a HP49G cable and I no longer know which is which.
Only one has a number mentioned in the Faq but there's still some confusion.
I forget the details at the moment. I guess the only way I can find out is
by trying them. I suspect this will happen again and eventually cost me a
calculator.

In the meantime I'm using a 200lx cable with the HP48 adapter and the HP49
adapter after that. It's the only thing I know is safe.

Barry

Homer Simpson <hsam...@lemel.fr> wrote in message
news:82op64$nom$6...@front2m.grolier.fr...

Gregorio Muńoz

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Dec 9, 1999, 3:00:00 AM12/9/99
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Hi..
Maybe you have to config the program to work in a free
port, usually this is the COM2.


* Sent from AltaVista http://www.altavista.com Where you can also find related Web Pages, Images, Audios, Videos, News, and Shopping. Smart is Beautiful

Jean-Yves Avenard

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Dec 10, 1999, 3:00:00 AM12/10/99
to Barry
Hello

The HP49G cable has a different shape than the HP200LX cable.
The HP200LX cable has a big bum on it, while the HP49G doesn't

Jean-Yves

Joseph K. Horn

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Dec 10, 1999, 3:00:00 AM12/10/99
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Jean-Yves Avenard wrote:

> The HP49G cable has a different shape than the HP200LX cable.
> The HP200LX cable has a big bum on it, while the HP49G doesn't

Will it work if it gets off its big bum? >:-O
I think you meant "bump". ;-)

-Joe-


Sent via Deja.com http://www.deja.com/
Before you buy.

Al Arduengo

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Dec 10, 1999, 3:00:00 AM12/10/99
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Jean-Yves Avenard <jean-yve...@hp.com> writes:

> Hello


>
> The HP49G cable has a different shape than the HP200LX cable.
> The HP200LX cable has a big bum on it, while the HP49G doesn't
>

> Jean-Yves
>

Oh great! That's all we need...a cable with a big ass.
;-)

>


enrico

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Dec 10, 1999, 3:00:00 AM12/10/99
to Kevin Ko

You're using the wrong cable.
To find a description of what cables are good for hp49g, and to learn how
building the cable by yourself, browse:
- the hp49-faq at http://www.hpcalc.org
- my pages:
* http://www.freeweb.org/computer/enrico/hpcables.htm
* http://www.freeweb.org/computer/enrico/cable49g.htm

ciao,
enrico

--
Enrico Carta (enr...@ieee.org)
Telecommunications Engineering Student, Pisa (ITALY)
Build your HP49G serial PC-Link cable by yourself!
Visit my page: http://www.freeweb.org/computer/enrico/cable49g.htm

On Wed, 8 Dec 1999, Kevin Ko wrote:

> Hi All,
> I used to have a HP48GX calculator and an HP link cable, it worked fine with
> my 48. When I tried to hook it up to the 49 it doesn't work. The 49 screen
> shows black lines or would not turn on after I plug the connector into the
> calculator. I used to use HP explorer, I just downloaded HP Graphing
> Calculator PC Connectivity Kit Version 3.0r2. Can anyone offer any advise?

Kevin Shu

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Dec 10, 1999, 3:00:00 AM12/10/99
to

"Julian Wald" <j...@ptolserv.com> wrote in message
> cable that came with the calculator. IMHO, HP should really make sure
> that they modify the next batch to have the lug, as sooner or later
> someone will get it wrong - what effect would connecting +12V between
> pins 2 and 3 have (I imagine something nasty :-( )?

I believe too that it would be better not to be able to plug it in the wrong
way.
I actually did put it in the wrong way when I first tried to connect my 49G
to my computer.
I was first very surprised to see that the screen had gone blank, except
from one line on the top of the calc which was on.
I thought that in the time I had been setting up everything the calc could
have turned off by itself, and it stayed with the cable pluged upsidedown
for a few seconds before I realize what I had done.
And when I realized that it was because of my cable, I even tried a few
times again to check again that strange effect on the screen. I didn't know
that it could damage my calc.

So far nothing wrong with my calc. Hope it will never.


Regards

Kevin

Kevin Shu

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Dec 10, 1999, 3:00:00 AM12/10/99
to

Barry

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Dec 10, 1999, 3:00:00 AM12/10/99
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On the other hand if they do put the lug on it, it will look just like the
200lx cable, which can damage the calc. I think a lot of hp calc users have
hp200lx's also.

Barry

Kevin Shu <_sk...@excite.com> wrote in message
news:82rl02$1i74f$1...@oceanite.cybercable.fr...

Tom Sears

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Dec 10, 1999, 3:00:00 AM12/10/99
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Barry wrote:

> On the other hand if they do put the lug on it, it will look just like the
> 200lx cable, which can damage the calc. I think a lot of hp calc users have
> hp200lx's also.

Isn't there a difference between the little lug and the big bum?
Tom


Barry

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Dec 11, 1999, 3:00:00 AM12/11/99
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Tom Sears <toms...@sockets.net> wrote in message
news:3851C348...@sockets.net...

Probably, until some future revision when the little lug grows up and
becomes a big bum. That won't take long in computer time where a generation
is about 6 human months.

Barry

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