<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=Content-Type content="text/html; charset=us-ascii">
<STYLE>BODY {
FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Geneva,Arial,Helvetica,sans-serif; BACKGROUND-COLOR: #ffffff
}
</STYLE>
<STYLE type=text/css><ZZZ!-- DIV {margin:0px;} --></STYLE>
<SCRIPT id=injection_graph_func
src="chrome://skype_ff_toolbar_win/content/injection_graph_func.js"
charset=utf-8></SCRIPT>
<META content="MSHTML 6.00.6000.16587" name=GENERATOR></HEAD>
<BODY id=compText>
<DIV dir=ltr align=left><SPAN class=726230712-13022008><FONT face=Geneva
size=2>I have a 14MZ purchased in March of 05. ( Early release). It has had 4
Touch Screens replaced & 2 sets of "Encoders" replaced. Most recently the
Aileron Encoder Failed completely. Full deflection one way. As Luck would have
it the Full Encoder Failure happened on the ground & was noticed before
attempting to fly.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=726230712-13022008><FONT size=2> A lot
of times (Not all) Encoder/Pot. problems can be seen on the Servo Monitor page.
You will notice the bar graphs not centering or erratic bouncing. Just not
acting like the other indicators.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=726230712-13022008><FONT
size=2> Another thing Futaba Service has been warning ( Or NOT endorsing)
is the use of Aftermarket Stiff Springs.. They are saying they are unapproved
& could cause problems with the encoders & mounting
structures.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=726230712-13022008><FONT size=2>I, like many
use these springs & will continue to do so. But if returning your Tx to the
Service Center be prepared to hear discouraging remarks about there use. I know
of cases where Warranty Service has been Questioned because of there use.
</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=726230712-13022008><FONT
size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=726230712-13022008><FONT size=2> Your
results may vary....</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=726230712-13022008><FONT
size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=726230712-13022008><FONT face=Geneva
size=2> </FONT></SPAN></DIV><BR>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B> nsrca-discussion-bounces@lists.nsrca.org
[mailto:nsrca-discussion-bounces@lists.nsrca.org] <B>On Behalf Of
</B>adriancwong@earthlink.net<BR><B>Sent:</B> Tuesday, February 12, 2008 9:29
PM<BR><B>To:</B> NSRCA Mailing List<BR><B>Subject:</B> Re: [NSRCA-discussion]
Futaba 14MZ glitch<BR></FONT><BR></DIV>
<DIV></DIV>To all,<BR><BR>Two of my friends from Hong Kong informed me that
their 14MZ has developed what the the Futaba Japan called a "Stick Volume"
problem. You can be flying along without giving any input to any of the
control, but suddenly, there can be a twitch on any of the moving surfaces, as
if you give the stick a quick jerking movement. One of my friend had it to the
rudder, and the other on the aileron. They sent it back to Futaba Japan and got
it fixed, explanation from Futaba was a wear and tear problem on the stick
control.<BR><BR>I've been using my 14MZ for over a year now, and I had the same
thing happen to my aileron started about a month ago. At first, I thought it was
an old ail servo, I changed both of them and flew it for another 20 flights
without any issues. Then, I switched to another plane with brand new aileron
servos a few days ago, and the same issue resurfaced, and the occurance gets
more and more frequnt. <BR><BR>This morning, I was practicing the P-09 sequence
with my friend Don Atwood. As I was pulling the plane into the stall turn, it
started to twitch on the up line. I then pulled the plane into the next maneuver
- top hat with 4 of 8 - it twitched again on the down line. It never went into a
complete lock-out, but just a quick twitch on the ail. <BR><BR>After I landed, I
was able to duplicate the same movement on the aileron. I moved the stick back
and forth a few times, as soon as I let go of the stick, within a split second,
both aileron will twitch a few times and then stopped. <BR><BR>As far as I know,
the 14MZ Tx does not have atick pots any more, it has some kind of an encoder,
similar to a - fly by wire - system on the modern jet liners? The encoder is
suppose to detect the amount of input onto the stick and feed the signal to the
servos?<BR><BR>Here are my questions:-<BR><BR>Am I correct on the encoding
system? <BR><BR>Does anyone on the list experienced the same issue? <BR><BR>Does
this only occur to the 14MZ, or, other models with the similar encoding
system. Particularly with the 2048 resolution?<BR><BR>When I send it to Great
Planes for service, will they be able to identify the problem easily with an
electronic scope?<BR><BR>Thanks in advance to
all.<BR><BR>Adrian<BR></BODY></HTML>