HP 16702A logic analyzer failed Ethernet (was Re: dumping Western Digital Microms)

Glen Slick glen.slick at gmail.com
Thu Dec 24 13:57:19 CST 2015

On Wed, Dec 23, 2015 at 11:24 PM, Eric Smith <spacewar at gmail.com> wrote:
> Then in the progress list, it shows:
> Configure LAN interfaces .................... [FAIL] *
> Check LAN Status .............................. [N/A ]
> [...]
> Configure HP Ethernet interfaces ......... [ OK ]
> Configure HP 100BT interfaces ............ [N/A ]
> Configure LAN interfaces ..................... [ OK ]
> Network hardware not usable - Is the network connected?
> I think the Ethernet ports on this beast are dead.  :-(
> I'm not sure whether it's the CPU board or the I/O board that is dead,
> but Keysight, or whoever they are this week, wants more money for
> either of those boards than eBay pricing for a used 16700A or 16702A.

I've never had a 16700 series fail that way before, at least not yet.
I've had a couple of 16600 series CPU / interface boards that have
failed being able to communicate with the logic acquisition board.
Those are almost identical CPU / interface boards to the 16700 series.

No real surprise that Keysight would want way more for a replacement
board than the current market value for a complete used mainframe.
That's pretty much the way it always works.

If you look around you could probably find a complete working 16700A
or 16700B shipped to you for $100 or less. Then either use them with
an external monitor instead of your 16702A, or transplant the 16700A
parts into your 16702A if you want to keep using the built-in LCD

I have one 16700A that no longer powers on. If just the power supply
is dead I might consider parting out the CPU and interface boards.


(One thing that is interesting on the 16700 CPU board are an
MP9914FNL, 75ALS160, 75ALS164, and an unused 24-pin connector. I
wonder if there is GPIB capability hidden in the system.)

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