Hood,
I am NOT an electronics person - I really don't know much about how to use an ohm meter but here is some information I was able to find
I don't know if I am calling the pins the correct thing put I start at the lower left corner as #1 and work my way around clockwise.
This is what the parallel board inside the Larken controller looks like
These are the 3 axis control boards as installed in the Larken controller - is also shows the end of the parallel port board
The parallel port board is at the front end of the board which is mounted to the front of the Larken control box.
On the back end of the board is three sets of 3 wires. In each set is One Green, One Purple, and One Gray. There is one set of wires for each axis control board. I have ID'd each of those.
I also used my ohm meter
I had the meter set on 200k ohms
Like I said - I don't really know how to use this stuff.
I used a paper clip inserted into the plug that plugs into each axis drive drive board on each of the colored wires - and checked every pin on the parallel port pins.
This is what I got
"0" means there is no connection at all
"X" Axis
Pin # Wire color Wire color Wire color Wire color
Green Purple Grey
1 71.8 0.8 72
2 71.8 0.8 72
3 71.8 0.8 72
4 71.8 0.8 72
5 71.8 0.8 72
6 0 0 0
7 0 0 0
8 0 0 0
9 0 0 0
10 74.9 1 75
11 0 0 0
12 0 0 0
13 0 0 0
14 74.9 1 75
15 74.9 0 75
16 74.9 0 75
17 74.9 0 75
18 74.9 0 75
19 0 0 0
20 0 0 0
21 0 0 0
22 0 0 0
23 0 129.2 0
24 0 0 0
25 0 0 0
frame 71.9 0.8 77
Does any of this make any sense to you?
If it does I will do the other two axis's later today.
BTW ---- it there an easy way to insert a pic??
Leo