914 TCU Calibration issue
Hello All,
I am finishing a Europa XS with a Rotax 914 Turbo engine model 309140010 serial number 4417803
I have Rotax TCU Type 966473 which rotax says that it requires dongle 966670, however the video says this and actually shows dongle 966675 which is the one I have managed to borrow and is used for this below.
The previous builder completed a calibration process, but since this was some 20 years ago, I am going through the motions.
I exchanged some Roman coins to obtain a small desktop PC with a 9 pin serial com port running Windows 10 running on a 32 bit operating system which is the only thing that can run this ancient software.
I have downloaded and installed TLR Version 4.5 that is required to run with this TCU version 966473 which is in this aircraft.
The software runs and communicates with the TCU when it is powered up - all good.
I can run the monitor software by pressing "m" on the keyboard and can see data arriving and changing as I move the throttle.
It shows me that the throttle position indicator shows 0% for when throttle is closed (which it should) and 108% or thereabouts when in the full throttle position - this is WRONG - the video says it should be 115%
The calibration process requires that I press the letter "t" on the keyboard to begin the throttle calibration process, but pressing this key DOES NOTHING. I have checked that the letter "t" actually works, by typing it in another application, so this indicates that the key functions.
I can seem to run all other functions and have even tried the logging process, even though the engine has not yet run.
The only odd thing I can find is that when it communicates, sometimes it will show TLR serial number 7803 with hours of operation as 1.0 and another time with TLR serial number "not valid" and hours of operation "not valid" I am not convinced this is relevant however, but mention it for completeness.
So, as it stands, it looks like the TCU is working, the software is working with the dongle TUR32.9 745-P-000116, the throttle position indicators work and data is passing.
The only thing I cannot do is to actually calibrate the thing, which is the whole point of the exercise - HELP
Kind regards
Trevor
Europa XS with Rotax 914
Regards
Trevor
