26 Apr
2010
26 Apr
'10
11:51 a.m.
Hi Philipp,
The B2, B1, and C are the etch levels of the boards. The 310D means the
board was made in 1973 or maybe 1983 during the 10th week. The D is the
eco/fco rev of the board.
I still have some other thing to go over with you off list, and will try to
get to them this week.
Paul
On Mon, Apr 26, 2010 at 7:51 AM, Philipp Hachtmann <hachti at hachti.de> wrote:
Hi folks,
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.
My personal RK8E passes all tests. It consists of:
M7104 B2
M7105 B1
M7106 C
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 itself.
Many thanks,
Philipp