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OK, I’m a little slow, but now I get
it. Since I have an “earlier unit”, I don’t need to pull it
and send it back. Thanks for the explanation.
Mark S.
From: Rotary motors in aircraft
[mailto:flyrotary@lancaironline.net] On
Behalf Of Tracy Crook
Sent: Tuesday, July 11, 2006 3:52
PM
To: Rotary
motors in aircraft
Subject: [FlyRotary] Re: Dreded
EM2 mandatory update
Appreciate the thought Mark, but
when I say "left off" I mean as in never there. It got
left off in the schematic transfer to the board maker. It isn't there on
any of the single piece units. The update does not apply to the earlier
two part units.
I could send you a picture of
nothing at all though : )
----- Original Message -----
Sent: Monday,
July 10, 2006 2:24 PM
Subject: [FlyRotary]
Re: Dreded EM2 mandatory update
Tracy,
Can you possibly post a picture?
Since I haven’t detected any noise in my system, I would hate to pull the
box out and send it half-way across the U.S. to fix a non-problem. If
we could check our own units, maybe you won’t have such a large pile of
UPS boxes piled up at your doorstep. I’m just trying to save you
some work. ;-)
Mark S.
From: Rotary motors in aircraft
[mailto:flyrotary@lancaironline.net] On
Behalf Of Tracy Crook
Sent: Friday, July 07, 2006 9:59
AM
To: Rotary
motors in aircraft
Subject: [FlyRotary] Re: Dreded
EM2 mandatory update
To All single part EM2 users:
I just identified a problem which
causes radio noise in some installations.
There was a high frequency bypass
capacitor left off the single piece version of EM2. There should be a .33
uF 50vdc part (low series inductance type, not electrolytic) from the
+12v input line to ground near the switching regulator chip. Don't
know why I don't hear that much radio noise on the bench and in
some completed installations but the noise on the +12 volt line is
obvious.
Sorry for the inconvenience but
send the unit back and I'll fix it. No charge of course.
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