HP 1631D logic analyzer help

From: Mark Champion <mark.champion_at_am.sony.com>
Date: Fri Aug 4 16:40:12 2000

I guess you're right. I'm working from memory as my logic analyzer
is in storage. Sorry if I added any confusion to this thread.

Mark Champion
Sony Electronics
425-771-2400
mark.champion_at_am.sony.com


----- Original Message -----
From: "Stan Perkins" <stan_at_netcom.com>
To: <classiccmp_at_classiccmp.org>; <mark.champion_at_am.sony.com>
Sent: Friday, August 04, 2000 10:58 AM
Subject: Re: HP 1631D logic analyzer help


Mark,

"Analog" is a bit of a misnomer. The 1631D incorporates a dual channel,
50 MHz bandwidth digitizing scope in addition to the usual logic
analyzer functions. HP refers to this section as the "analog" section in
the self-test descriptions, so I was using the same nomenclature to
describe it in my posting. The 1631A/D instruments are the same as the
1630A/D instruments with the addition of the extra PCB with the scope
circuitry.

Jay's instrument and yours should have three BNC connectors on the front
panel underneath the keyboard area for the scope inputs. If yours
doesn't, it's probably a 1630D. A 1630 series analyzer will make no
reference to an analog section in the self-tests, as it has different
ROMs. If yours has no scope inputs, but still refers to the
(non-existent) analog section in the self-tests, then you've got an
instrument with the 1631 ROMs installed.

Hope this clears up any confusion!

Regards,
Stan

Mark Champion wrote:
>
> I have an HP1631D. Mine has no analog scope capability. Maybe this was
> an option which neither Jay nor I have? Perhaps this error is indicated
> if the "scope" option is not installed?
>
> I'd perform the same test to see the result, but my logic analyzer is in
> storage. Sorry.
>
> Mark Champion
> Sony Electronics
> 425-771-2400
> mark.champion_at_am.sony.com
>
> ----- Original Message -----
> From: "Stan Perkins" <stan_at_netcom.com>
> To: <classiccmp_at_classiccmp.org>
> Sent: Thursday, August 03, 2000 5:54 PM
> Subject: Re: HP 1631D logic analyzer help
>
> > Jay,
> >
> > IIRC, that analog error is an analog channel triggering error. I believe
> > that all of the extended self-test error codes are spelled out in the
> > service manual.
> >
> > As a quick check, you can try triggering the scope section from all
> > three channels, and I think you'll find at least one (Channel 2?) won't
> > trigger the scope, but it will still digitize a waveform. For most
> > purposes, the logic analyzer will be fine, but if I were you, I'd take
> > the company up on the offer to replace it.
> >
> > If the replacement 1631D passes all of the extended self-tests, you can
> > be 99.9% sure that it has no internal problems, since these tests are
> > very extensive.
> >
> > Hope this helps!
> >
> > Stan
> >
> > Jay West wrote:
> > >
> > > Anyone familiar with an HP 1631D logic analyzer/scope?
> > >
> > > I just got one used (with pods and grabbers)... no manual yet, so I'm
> > > shooting in the dark on this.
> > >
> > > There's a selftest dip switch on the back. If I set it and power up, the
> > > screen says...
> > > ------------
> > > Ram OK
> > >
> > > Rom OK
> > >
> > > Acquisition OK
> > >
> > > Analog Error:
> > > 21 00 00
> > >
> > > Reset back panel switch to........
> > > -------------
> > >
> > > I talked to the company I bought it from - they're not familiar with the
> > > unit but said they'd gladly send me a different one if mine was bad so I'm
> > > not worried about that. However, I'm wondering if anyone can tell me if this
> > > really indicates a problem or does the selftest expect a probe to be
> > > connected or something (nothing is connected to it now). Any ideas?
> > >
> > > On a different note... HP quotes the manual for this unit at $72.00USD.
> > > Would anyone have one I can borrow and copy for less?
> > >
> > > Please reply to the list or to west_at_tseinc.com, not this address.
> > >
> > > Thanks!
> > >
> > > Jay West
Received on Fri Aug 04 2000 - 16:40:12 BST