IBM part number 1397003 (click to enlarge)
Made
29th May 1998 (click for label) at IBM Greenock, Scotland, UK.
It's a 5250 style terminal emulator keyboard, completely PS/2 compatible,
though key mapping in software is required to take advantage of the extra keys.
It's been my first choice main 'board for a few years now.
Below, there are two 5.5mm hex bolts in deep recesses, and one out in the open.
Without the top, we can see the keyboard assembly. Nothing to do with the 3180 terminal, an odd conincidence...
The LED PCB is, well, minimalistic. It is attached to a plastic base which attaches to the main assembly
by means of a circular tab and a guide forming a slot.
The controller PCB is attached to the lower casing simply by slotting into a
pair of similar tabs beside the SDL connector.
This means that when the main assembly is lifted, it detaches:
A classic Greenock style label is used for labelling the assembly, part number 1396924.
Also note the rust spots, these were a surprise on a 'board otherwise in great condition.
And finally, as requested, PCB pictures.
FrontBackSorry about the lack of IC visibility, will check and confirm numbering.