HP 1631D logic analyzer help

From: Stan Perkins <stan_at_netcom.com>
Date: Thu Aug 3 19:54:49 2000

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 Thu Aug 03 2000 - 19:54:49 BST