Cant get my AFR to work

[LouZ]

Please explain how to do this...

I've got crom 6A and beta DV.

According to the plug diagram sticky I have + on the middle band and gnd on the third band.

set up analog input to channel 2 and set the hi/low to 20/10( I assume its expecting 0/5)

does not show up in the Dv in External as expected.....

What UP?????