X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from email2k3.itlnet.net ([64.19.112.12] verified) by logan.com (CommuniGate Pro SMTP 4.3c5) with ESMTP id 948270 for flyrotary@lancaironline.net; Wed, 18 May 2005 00:31:15 -0400 Received-SPF: none receiver=logan.com; client-ip=64.19.112.12; envelope-from=jwvoto@itlnet.net Received: from rav.itlnet.net (unverified [192.168.10.149]) by itlnet.net (Rockliffe SMTPRA 6.1.17) with SMTP id for ; Tue, 17 May 2005 23:30:28 -0500 Received: from JWVOTO (unverified [64.19.116.177]) by itlnet.net (Rockliffe SMTPRA 6.1.17) with SMTP id for ; Tue, 17 May 2005 23:30:26 -0500 Message-ID: <00fa01c55b62$93fbc300$35741340@JWVOTO> From: "Wendell Voto" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: EC2 Problem suggestion Date: Tue, 17 May 2005 23:31:45 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00F7_01C55B38.96D0F520" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4133.2400 X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4133.2400 This is a multi-part message in MIME format. ------=_NextPart_000_00F7_01C55B38.96D0F520 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable John you mentioned that you chnaged to shielded wires. All it takes is = a single (missed) strand of the shield (connected to the core) to create = a short. If not already done, remove the connector(s) from the EC2 and check = with an ohm meter between each pin on the connector and to ground (for = pins that don't go to ground) for shorts (0 ohms). Just an idea... John, I jus now realized that you used shield wires, did you shield all = wires? Don't know what type of wire you used, maybe you mentioned it = somewhere. Shielded wire can have a lot of capacitance and can make a = signal all but disappear to an input. I don't know the frequency of the = signals going to and from the EC2 and EM2 but maybe some one can fill us = in. You can see a low ohm resistance when measuring a cable but it = doesn't necessarily mean the signal will get to the end at a usable = level. Just groping for ideas. Wendell ------=_NextPart_000_00F7_01C55B38.96D0F520 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
 
John you mentioned that you chnaged to shielded wires. All it = takes is a=20 single (missed) strand of the shield (connected to the core) to create = a=20 short.
If not already done, remove the connector(s) from the EC2 = and check=20 with an ohm meter between each pin on the connector and to ground (for = pins=20 that don't go to ground) for shorts (0 ohms).

Just an=20 idea...

John,
I jus now realized that you used shield = wires, did=20 you shield all wires?  Don't know what type of wire you used, = maybe you=20 mentioned it somewhere.  Shielded wire can have a lot of = capacitance and=20 can make a signal all but disappear to an input. I don't know the = frequency of=20 the signals going to and from the EC2 and EM2 but maybe some one can = fill us=20 in.  You can see a low ohm resistance when measuring a cable but = it=20 doesn't necessarily mean the signal will get to the end at a usable = level.=20 Just groping for ideas.
Wendell
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