=20 I guess I will try to give Tracy a call in the morning...I think = it is a tech support day or is Tracy out of town again? Man, my timing = sucks. Oh well. On with the build. All the best, Chris -- Homepage: http://www.flyrotary.com/ Archive and UnSub: = http://mail.lancaironline.net:81/lists/flyrotary/List.html =20 =20 ------=_NextPart_000_0018_01C7D36C.1F041B40 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Tracy, et al.

It shall be done. On my way to = the hangar in=20 a few minutes. (today is my Sunday). Thanks. I will let = y'all=20 know....of course you knew that didn't ya <g>.

All the best,

Chris

----- Original Message -----

From:=20 Tracy=20 Crook

To: Rotary motors in = aircraft

Sent: Tuesday, July 31, 2007 = 12:09=20 PM

Subject: [FlyRotary] Re:=20 Unsubscribe...now, nice purchase

Chris,

You are getting good advice on troubleshooting the problem.

Not sure you are following the logic in some of them = though. I=20 think I suggested this already but here it is if not.

There are three possibilities that need to be = eliminated. The=20 answer to finding problems is always follow logical trouble = shooting=20 steps. Frustration can usually be eliminated. The = steps may=20 not be fun but they will give answers.

The possibilities are:

1. Wiring problem (probably not given the measures you have = already=20 taken but still needs to be verified)

2. Noise problem or unidentified sensitivity to long cable=20 lengths.

3. The EM2 is not working right.

You have mostly done steps for #1 I think. BUT, just=20 re-terminating the lines does NOT eliminate the possibility of shorts = (to=20 ground) in the cable run. Check for that as well.

#2 is trickier. At this point you need to go to the trouble = of the=20 next step. Disconnect the switches from the EM2 *AT THE = EM2 END OF=20 THE CABLE *. This will mean either removing those pins from the = EM2=20 connector or cutting the wires. I suggest doing this on = the UP=20 switch and ABORT switch which are the two lines that must be pulled = low in=20 order to invoke calibration mode.

If the problem goes away, it means there is a short to ground on = one or=20 more of the switch lines or the lines are picking up noise in the = cable=20 run. Now find out which is the case.

With the lines to these 2 switches still cut (at the EM2 = connector)=20 , press the down switch to verify that you can still scroll through = the=20 screens. If you can, the problem has been isolated to either = shorts or=20 noise. Use an ohm meter to test for shorts. Now hook = one line=20 at a time back up. Start with Abort line. Test for normal = function=20 on the abort switch (press it and see the Quick Check screen for fuel=20 pressure, etc).

Then hook up the UP line and see if trouble is back. If so, = and=20 there were no shorted lines) the problem is likely to be noise. = This=20 would surprise me since it is happening without the engine running but = anything is possible.

If it is noise, there are many possible fixes. Call me to = discuss=20 them.

If the problem is still there with switch lines cut, the = EM2 is=20 dead-bang BAD. Send it back for repair if so. There is = also the=20 possibility that there are shorts inside the connector housing on the = switch=20 connector but that would be a very long shot.

One more test I just thought of. Prior to cutting any = wires. =20 Turn the EM2 power on and measure the voltage at all 4 EM2 Mode=20 switches. They should be at 5 volts when not pushed and 0 volts = when=20 pushed. Make sure there are no interaction between = switches. i.e.,=20 Pushing ABORT should not affect voltage on UP, .

Happy Troubleshooting,

Tracy

On 7/31/07, Michael=20 LaFleur <mike.lafleur@sbcglobal.net= >=20 wrote:=20

Since=20 it's doing it all the time and not just when engine running, I'd = think the=20 problem is not a noise issue. Although you still could have one with = engine=20 running.

Disconnect the switches and if the unit is still in = calibration mode, it points to the unit as the source of the=20 problem.

Mike LaFleur

----- Original Message ----
From: Christopher Barber = <=20 CBarber@TexasAttorney.net>
To: Rotary motors in aircraft = <flyrotary@lancaironline.net>
Sent: Tuesday, July 31, 2007 11:17:26 AM
Subject: = [FlyRotary] Re:=20 Unsubscribe...now, nice purchase

All the time.

It seems as if a switch is = sticking, but I have=20 replaced all the switches, re-ran the wires an d-sub pins etc. = Buly=20 mentioned a filter.....I donno. I am not that well versed on=20 electronics, but becoming more educated everday. I am very = suspect of=20 absolutes, but I am confident that my connections are good. I = do not=20 know of any other way to make them more "proper". Again, it = was=20 working fine, then, after an engine run....where I was just looking = at the=20 display during the run, I shut down, checked the engine, came back = to the=20 cabin and it was in calibration mode (heck, maybe it is not = calibration=20 mode, but that is what is seems to be....also, my Coolant = Temperature in the=20 main screen, for the second it displays, reads "0". I may have = inadvertantly set it to this trying to clear the calibration = mode. The=20 buttons seem to be MOSTLY working other than that, however, since it = keeps=20 wanting to set to the first calibration screen, it is difficult to = page to=20 other pages, even though it will. Also, as I mentioned in my = post from=20 last week on this topic, the display digits are kinda = flashing....not all of=20 'em....like maybe the last few digits of the bottom line, sorta like = it is=20 trying to change to the next screen so I see the display from that = screen=20 for a minute and it then flashes back ot the word "temperature"=20

-----=20 Original Message -----
From:=20 Michael LaFleur
To:=20 Rotary motors in aircraft

Sent:=20 Tuesday, July 31, 2007 6:12 AM Subject:=20 [FlyRotary] Re: Unsubscribe...now, nice purchase

Is this all the time, or only when the engine is=20 running?

Use your voltmeter and probe the wires while you = press the=20 button. Take notes.

Mike LaFleur

----- Original Message ----
From: Christopher Barber = <=20 CBarber@TexasAttorney.net>
To: Rotary motors in aircraft = <flyrotary@lancaironline.net = >
Sent: Monday, July 30, 2007 11:19:51 PM
Subject: [FlyRotary] Re: Unsubscribe...now, nice=20 purchase

David,

I am thrilled to hear of your = purchase. I was=20 saddened by Buly's choice, but more power to him...gotta admit = that a few=20 days recently tracking down grimlins gets my mind to understand = his=20 choice.....understand, even if not agree. For me it is = just the=20 frustration of the moment, which at times is part of the = fun. =20

Of course, today, as I = re-terminated=20 all my wire runs (and then verified continuity of each = line) for=20 everything connected to the ECU and EM2, fun was the last = word I was=20 shouting out. Dang it.......I am still getting the EM2 stuck = in=20 calibration mode. DOH! The engine did start right up = though=20 after all the re-terminations, but the EM display continues to = stay in=20 calibration mode (Select Channel 0; on the first line and Coolant=20 Temperature on the second line), when I press the button to clea = it it=20 flashes to the main screen for about a second and goes back to the = calibration mode. So, a lot a effort but no forward = progress. =20 Opps, sorry, I degress to my current frustration <g>=20

I guess I will try to give Tracy a call in = the=20 morning...I think it is a tech support day or is Tracy out of town = again? Man, my timing sucks. Oh well. On with = the=20 build.

All the best,

Chris

--
Homepage: http://www.flyrotary.com/
Archive and=20 UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.html=

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