HP-2116A chassis (or repairing cast aluminum)

[Tim Riker]

Bob Shannon wrote:
> On HP 2116A's and 2116B's, the core stacks are not mounted on cards 
> (the 2116C uses the same style of core memory as does the 2100A/S).

I'm still learning about this old machine. ;-)

> There should be one or two large blocks about five inches on a side,
> and perhaps four inches thick.  Each block should have a set of five
> or six cables with hooded edge-card connections that connect to the
> drivers and sense amplifier boards in the top row of the chassis.

Ahh. yes, two cubish boxes on top/back of the main chassis?:

http://rikers.org/gallery/hardware/20050417_001441

Remember the original pic was inverted. I found the machine upside down
due to the cracked chassis.

> The center row is the actual CPU logic, and is normally only 
> half-populated.

sounds about right, here is is right side up:

http://rikers.org/gallery/hardware/20050417_003545

anything missing that you can see? A1, A11, A14, A109-12, A114 being
empty are ok? My A12 has a small cosmetic rip. thoughts on bonding the
board back together? What do folks do to repair the board clips? My
dma-word-count fell apart just by touching it lightly.

I'm probably using all the wrong terminology. Docs would help. ;-)

> The bottom row is the I/O backplane and only 2 or 3 boards in that
> row belong to the CPU itself, the rest (16?) are for I/O cards.  Many
> of the same I/O cards used in the 21MX class machines will work in
> the 2116.

I put the 2 boards that were loose (power regulators?) back in the
chassis, but have not put the 2 large heatsink modules in. They are
missing the fans that used to be on the bottom of each module.

http://rikers.org/gallery/hardware/20050417_085251

I really need manuals for this beast now. I didn't see any online.
Anyone have electronic versions of the documentation? please? ;-)

I'd be willing to scan and pdf paper manuals if anyone has them to loan.

please? ;-)

Also interested in anyone that might have a working HP-2020 mag tape
drive. I think mine is missing quite a few componets.

On opening the chassis, I noticed that the lower guide pin slider on my
cabinet is missing. Also the connects have threaded sockets that look
like they used to have some kind of a spring loaded pin mechanism. Both
of mine are empty.

Does the 2116A support 110v power? The power connect is a 220/240 style.
I see in the sales brocure for the 2116B that is supports either, but I
don't have docs for the 2116A yet. hint, hint... ;-)

I keep posting new stuff in the gallery. Feel free to browse. Isn't this
better than what's on TV anyway? ;-)

http://rikers.org/gallery/hardware
-- 
Tim Riker - http://rikers.org/ - TimR at Debian.org
Embedded Linux Technologist
BZFlag maintainer - http://BZFlag.org/ - for fun!