This is 128 meg so no 56k and it's as boring as all hell, but I've gone through it for you and though this may not be all, it is some of the important stuff :
http://www.diyautotune.com/videos/megas ... enoise.mov
- 38:16 - 39:30 I was aware that the +ve feed to the ms was inadequate, thus my unit has a second decent power feed wire to it. I wasn't aware that it was possible to split the high current positive fly back return from the power feed/cpu one easily. That time interval shows you how to do that. (This should NEVER have made it to production...)
- 45:30 - 46:00 blames faster starting on v drop, and NOT battery internal resistance. This depends on where the cap was put : If it was close to the starter, Bruce is right. If it was close to the battery (and let's hope it was) Bruce was mostly wrong. Yes it's a voltage drop, but one internal to the battery. This seems most likely to me.
- 50:00 - 52:00 fast idle ground goes to cpu ground!!! bloody hell. If you are switching anything with your fast idle circuit, please lift the transistor leg and ground it separately as it should be. wtf? WTF??
I guess he was referring to himself :-)
MS was referred to as a baby. When you beat a baby with a stick (who the fuck does that????) is it the babies fault, or the sticks fault that it cries? (how about the dude holding the stick??)
Anyway, basically he said "it's all your fault, but, by the way, I screwed these things up on the v3 board (and much worse on the earlier ones) and here is how you fix them.
This is not common knowledge because the board layouts are hidden and private. This would almost certainly have been uncovered sooner and publicised more if it were reviewable by the public.
He forgot to mention the other grounding design issues that are present with the MS, but as he says, overkill grounding and extra care (you always need some decent amount of it regardless of the board design) can make them a non issue.
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