(ET) Reverse issues

[Chris Zach <czach computer org>]

Ok, I think I have an idea what is going wrong with the E20, but it 
doesn't make much sense.

The problem is that when you're driving around the contactors for 
1A,2A,3A (the bypass around the resistors) are not kicking in when in 
reverse. I checked the voltages on the diodes to the 1F and 1R 
contactors and they read like 26 in forward, but only 21 or so in reverse.

Is the problem this: When in reverse and in series with resistor 1,2,3 
there is not enough voltage at 1R to power the 1A,2A,3A contactors? It 
sounds insane, but I checked the diodes and the traces and everything 
looks fine. Simply not enough power to the contactor buss.

Still doesn't quite explain why I can get 1A and 2A to come in if I 
floor it, something is missing here.

Any thoughts?

Chris