RK8E controller board revisions - Chaos ahead, help needed
vrs at msn.com
Mon Apr 26 09:32:09 CDT 2010
> I'm currently dealing with some RK8E Omnibus RK05 controller board sets.
> I was unable to assemble even one stable RK8E from the stuff. I assume a
> high failure rate. But I also assume that I have board revision
> problems. I've been told that several revisions existed. And that there
> were compatibility issues and some kind of paper (which I do not have)
> telling what fits what.
> I don't even know if the revisions are PCB revisions like "M7104 B2"
> written in the etch or if there are also FCOs or alike that make boards
> with same etch incompatible to other boards.
It is possible that some of your boards are actually for an RK8F instead
of an RK8E. I understand there were some blue-wire differences, and I'd
certainly not expect RK8F stuff to work anywhere but in the DW8E (and
with the rest of an RK8F).
> But I have other boards flying around here as well.
> Do stamps like "310 D" on the backside of the boards have any meaning
> with respect to board revision or FCO level?
> Another question is how to get different board revisions associated
> with the right schematics.
> I strongly appreciate any piece of enlightenment since I'm currently
> getting depressed by that stuff. Even if I have bad boards - it won't
> make sense to try to repair something if the whole is inconsistent in
I'd also be interested to see some kind of write-up about how to
distinguish these boards in the field.
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