HP 1630 logic analysers

[Eric Smith]

Bill wrote:
> A service manual for the 1630 series sold on eBay
> just yesterday!  I put in a good bid on it, but it
> went for around $57 I believe.  I'd be interested
> in a copy of the service manual myself, as well
> as a user's manual for the 1631G (with analog
> inputs).

There wasn't a 1631G.  Only the 1631A and 1631D.  There wasn't enough
room in the card cage to have 65 digital channels and the scope.

                     digital
         digital     channels
         channels    (timing      scope
model    (total)      capable)    channels
-----    --------    ---------    --------
1630A      35           8            0
1630D      43          16            0
1630G      65           8?           0
1631A      35           8            2
1631D      43          16            2

All the digital channels could be used in state analysis, but only 8 or
16 could be used for timing analysis.  One reference claims that the
1630G only has eight timing-capable channels, but I'm dubious since I
thought the 1630G hardware was a superset of the 1630D hardware (though
the firmware is different).  I don't have the manual handy though.

Eric