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lazun · 04-25-2008, 03:30 PM

Hello all.

I'm helping out a friend and coaching them for competition. He is using all Futaba equipment and 2 Duralite Batteries, 14MZ, 2.4, R6014FS RX DA150 aerobat simple easy setup.

He has about 30 flights on the system FLAWLESS!!

Then an issue:

While starting the engine a second or two later after engine start the plane locks out. Moving the sticks does nothing. We look at the rx and it is solid red, tx solid green as if it lost the bind. But it didn't. We shut the engine off and cycle the rx switch and it goes green. So we start it again and it was fine. So after a little testing we decided to fly. A 17 minute flight FLAWLESS.

Then it happened again 3 times the same way during engine start. Now we know there is defiantly a problem. We didn't know if it was the rx or tx. We ruled out the tx at the time because when we lost it we cycled the tx switch and the rx stayed solid red. The tx was always solid green before and after. Cycling the rx switch would only make it come back to steady green on the rx.

What is this? It gets better.

We come out the next day with a different airplane with about 3 flights on it. Different plane and rx. It does the same thing!!!! WHAT?!!
Five times we lost the signal. This time without even running the engine. The plane was just sitting there on the ground no engine testing the control surfaces and boom lost it. Cycle the rx switches and get it back then a few seconds later loose it again!!!? Happened 5 times no engine this time. Unless you cycle the rx switches you will not get the rx back.

This is serious! Any help?

The airplane was indeed going into hold and going to the pre-set failsafe settings. No power box. Simple setup. Two Duralite packs. If it is going into failsafe why is it that you cannot get it back without cycling the switches.

Today we went out with the plane with a different rx r6014 in it and tx 14mz. We did everything and it would not go red. We started the engine 11 times. Ran the engine for 15 minutes touched the antennas to the ignition, ignition wires, spinner, batt, tapped the module did jumping jacks with the tx and NOTHING. Left it on for half hour and NOTHING.

Without question it is the rx or tx or both. We are leaning towards the rx.

Any ideas or others with issues like this?

We cannot take a chance. These airplanes are custom and have 300+ hours a piece on them.

There is no question that it is the rx and/or tx. Question for the techs is why doesn't it come back? Why is it that until you cycle the switch it will go green?

Some said vibration:
I would agree with this statement 100%. However, if the other aircraft this was happening too was with a new RX and with the engine off.

My point is that regardless of setup, defective switches, wires, batteries, powerboxes, ignition or even outside interference ect, that make the RX go into this mode, it should come back. But it doesn't until you cycle the power. This makes me question only the RX.

Have there been programming or hardware issues with the RX's regarding this?

04-25-2008, 03:30 PM	#1
lazun Capt my Capt Join Date: Apr 2006 Location: New York, NY Posts: 109	Problems!! 14MZ 2.4 R6014FS Hello all. I'm helping out a friend and coaching them for competition. He is using all Futaba equipment and 2 Duralite Batteries, 14MZ, 2.4, R6014FS RX DA150 aerobat simple easy setup. He has about 30 flights on the system FLAWLESS!! Then an issue: While starting the engine a second or two later after engine start the plane locks out. Moving the sticks does nothing. We look at the rx and it is solid red, tx solid green as if it lost the bind. But it didn't. We shut the engine off and cycle the rx switch and it goes green. So we start it again and it was fine. So after a little testing we decided to fly. A 17 minute flight FLAWLESS. Then it happened again 3 times the same way during engine start. Now we know there is defiantly a problem. We didn't know if it was the rx or tx. We ruled out the tx at the time because when we lost it we cycled the tx switch and the rx stayed solid red. The tx was always solid green before and after. Cycling the rx switch would only make it come back to steady green on the rx. What is this? It gets better. We come out the next day with a different airplane with about 3 flights on it. Different plane and rx. It does the same thing!!!! WHAT?!! Five times we lost the signal. This time without even running the engine. The plane was just sitting there on the ground no engine testing the control surfaces and boom lost it. Cycle the rx switches and get it back then a few seconds later loose it again!!!? Happened 5 times no engine this time. Unless you cycle the rx switches you will not get the rx back. This is serious! Any help? The airplane was indeed going into hold and going to the pre-set failsafe settings. No power box. Simple setup. Two Duralite packs. If it is going into failsafe why is it that you cannot get it back without cycling the switches. Today we went out with the plane with a different rx r6014 in it and tx 14mz. We did everything and it would not go red. We started the engine 11 times. Ran the engine for 15 minutes touched the antennas to the ignition, ignition wires, spinner, batt, tapped the module did jumping jacks with the tx and NOTHING. Left it on for half hour and NOTHING. Without question it is the rx or tx or both. We are leaning towards the rx. Any ideas or others with issues like this? We cannot take a chance. These airplanes are custom and have 300+ hours a piece on them. There is no question that it is the rx and/or tx. Question for the techs is why doesn't it come back? Why is it that until you cycle the switch it will go green? Some said vibration: I would agree with this statement 100%. However, if the other aircraft this was happening too was with a new RX and with the engine off. My point is that regardless of setup, defective switches, wires, batteries, powerboxes, ignition or even outside interference ect, that make the RX go into this mode, it should come back. But it doesn't until you cycle the power. This makes me question only the RX. Have there been programming or hardware issues with the RX's regarding this? __________________ John JFK Base http://www.edgewoodflyers.com