lk201 question

[Tony Duell]

> 
> I just picked up a lk201 keyboard today that wouldn't work with a vt320


Are you sure it's not defective? An LK201 (any LK201) with a matrix short 
(very common) will behave as you described.

> 
> Unlike my other lk201's this one has  blue strip across the top, an orange pf1 
> key, f20 is labeled Hyph Push
> 
> PN: LK201BA
> 
> One site selling them says it is a word processing keyboard.

I've seen something like that used on a DECmate II. AFAIK it was a 
standard LK201 apart from the labels and keycaps and would work on a 
VT320, etc. 

> 
> red lights and an error 4  on a VT 330.
> 
> How many variations of LK201 were produced?
> Are they interchangeable?

AFAIK they all had the same internal ciecuit and firmware and were 
interchangeable. Of course the LK250 is something totally different....

-tony