parts 1946.50 motor brake

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Balrog
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Joined: Fri Oct 07, 2005 4:31 pm

parts 1946.50 motor brake

Post by Balrog » Sun Nov 13, 2016 8:41 pm

I'm looking for a replacement control computer interface module (sits on the handlebars) for a 1946.50 motor brake.

I'm not getting *A*N*Y* hits from google or any love from the tacx website

thebigoneinfront
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Re: parts 1946.50 motor brake

Post by thebigoneinfront » Sun Nov 13, 2016 9:43 pm

Haven't yet found the parts lists and drawings on the new Tacx HP either. The T1946.50 is the 110 V Fortius isn't it? The part number for the newer interface for the Fortius brake is T1932. Looks a bit different than the old solid blue controller, but works. I had one on my long substituted Fortius and my wife still has one on her Fortius.

Balrog
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Joined: Fri Oct 07, 2005 4:31 pm

Re: parts 1946.50 motor brake

Post by Balrog » Mon Nov 14, 2016 3:28 am

It is the 110V fortius. Found it. Thanks.
Those prices... :shock: Maybe I'll get lucky and find one on the used market.

What did you do with your old ones?

thebigoneinfront
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Re: parts 1946.50 motor brake

Post by thebigoneinfront » Mon Nov 14, 2016 8:19 am

I had replaced my old solid blue one on the Fortius with the T1932 because the old controller went on permanent strike. Probably too much sweat intrusion. If that's the issue with your controller, too: mcorn recommended to take it apart and rinse it with a mildly alkaline solution (bit of baking soda in water) and water and letting it air-dry overnight. I read that recommendation too late for my old controller. My Fortius is long gone.

My wife's Fortius started its life as a Cosmos. The Cosmos was a Fortius with a stand-alone controller, it wasn't hooked up to a PC for riding. I finally talked her into getting the T1932 instead and use RLVs on the PC, but she still guards that Cosmos controller as a fall-back position.

It may be worth a thought to not hunt for a new controller for a legacy trainer, but use the money for a newer trainer. A number of folks are upgrading to "Smart" trainers these days and therefore some older non-Smart Genius trainers are on the market. Essentially the Fortius's successor and less legacy than the Fortius. Of course that depends on your PC (the Tacx Trainer Software is more demanding than the old Fortius software) and whether your environment has so much electronic noise that you prefer a wired trainer.

Balrog
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Joined: Fri Oct 07, 2005 4:31 pm

Re: parts 1946.50 motor brake

Post by Balrog » Mon Nov 14, 2016 9:21 am

The controller went MIA during a move.
The rest of the system is in fine shape, it suits my usage pattern well.
A brand new controller, much less an entirely new system is not in the budget.

thebigoneinfront
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Re: parts 1946.50 motor brake

Post by thebigoneinfront » Mon Nov 14, 2016 10:27 am

One more thought. You can also look for the T1925 "Flow Upgrade" which is the bundle of the T1932 controller with whatever TTS version was current at the time. You also can look for an i-Flow. (Make sure it's the i-Flow with the T1932 controller and not the Flow with its standalone controller.) The i-Flow was the cheapest trainer using the T1932, and either a used T1925 bundle or a used i-Flow may come cheaper than a new T1932 alone.

Balrog
Posts: 66
Joined: Fri Oct 07, 2005 4:31 pm

Re: parts 1946.50 motor brake

Post by Balrog » Mon Nov 14, 2016 3:21 pm

Found this on Ebay: http://www.ebay.com/itm/Tacx-Fortius-T1 ... Swal5YKHA6

Is it compatible with the 1946.50?

thebigoneinfront
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Re: parts 1946.50 motor brake

Post by thebigoneinfront » Mon Nov 14, 2016 3:39 pm

Yes, that's the T1932 and what we have or had on our Fortiusses (or Fortii? :mrgreen: )

Balrog
Posts: 66
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Re: parts 1946.50 motor brake

Post by Balrog » Mon Nov 14, 2016 7:34 pm

After a morning long slog through ALL of the packed boxes, the controller has been found.
The cables are completely in the wind. Don't ever let anyone else help pack you up when you move.

I have found a site, https://www.bike24.com/1.php?content=8; ... =1000,5,69 which has most of them for reasonable prices.

All that remains is tracking down the specialty power cable they used to connect the power pack and the motor brake.

thebigoneinfront
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Re: parts 1946.50 motor brake

Post by thebigoneinfront » Mon Nov 14, 2016 10:06 pm

Good! There seems to be one more difference between the 240 and 110 V models than the voltage - on our 240 V units, one couldn't detach the cable connecting power unit and brake from the power unit.

One important point is using the correct cable connecting the power unit and the controller. It looks like a telephone cable, but it is a straight-through, not a crossover cable. So no using just any 4-pin cable you may find. Good luck in finding the correct cable then!

Balrog
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Re: parts 1946.50 motor brake

Post by Balrog » Sun Nov 20, 2016 12:24 am

Found EVERYTHING. All the original parts and pieces, right down to the fiddly little rubber bits.

Since I last ran it, the world has moved on. X64 bit became the norm, which is unsupported by the Fortius software.

SO... rather than reinstall everything back to x32 bit just to run one application, or installing dual boot and rebooting just to run it and boot back after, I'm looking at alternatives.

Does current TACX trainer software support the T1946.50?

Assuming the current software supports my relic, is there diagnostic software I can use to see if it still lives?

thebigoneinfront
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Re: parts 1946.50 motor brake

Post by thebigoneinfront » Sun Nov 20, 2016 11:47 am

The Tacx Trainer Software does support the Fortius trainer. My wife's Fortius is on the most recent version, TTS 4.21. I don't think there is a difference between the 110 and 240 V models in this respect. I don't know, however, whether spending money on upgrading the PC and the software right now is a good idea. There are rumours about changes in the Tacx software environment. They definitely need to find a way to compete with Zwift and I still am flabbergasted they didn't come up with something for this trainer season. On the other hand, no one knows whether any new software will still support the legacy wired trainers.

Another point is that having a separate PC to control the trainer is preferable, in particular if you run other video software - TTS has issues with some other codecs. Choice also depends on how you train. TTS has other VR worlds. There is a way to move old RLVs over to TTS if you use those and there's a world of new RLVs of much higher quality for TTS. No significant changes to the "Catalyst" part of the software. One advantage of using TTS for the Fortius is being able to use ANT devices in parallel - coupling an ANT HR strap provides more stable HR readings than the original analog strap, in particular where you have a lot of electronic noise. So if you are happy with your present sytem, love your VR trainings, put little value on high quality RLVs, have little electronic noise and do video editing, there are some arguments to stay with the Fortius software and a separate, if old, PC.

The only way I know to test in advance whether your trainer still works ok is firing up the Fortius software and try using the trainer.

Balrog
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Joined: Fri Oct 07, 2005 4:31 pm

Re: parts 1946.50 motor brake

Post by Balrog » Mon Nov 21, 2016 12:45 am

Thanks for the reply. PC specs aren't an issue - mine's well within TTS range. It burns more watts than I can produce on the bike.

There are a couple of local TACX dealers. They weren't there when I picked up the T1946. If my system won't deal with W7 X32 and the decrepit Fortius drivers I'll see if I can smooze one of them into DXing my T1946 on the TTS stuff. Testing that out later tonight.

Note: W8.1 kicks a spectacular "Kmode Exception Not Handled Error" and BSODS when it sees the device driver. Seems to me I was only running W7 x32 and x64 when I shelved the T1946.

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Alex Masalovich
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Re: parts 1946.50 motor brake

Post by Alex Masalovich » Mon Nov 21, 2016 7:55 pm

Balrog wrote: X64 bit became the norm, which is unsupported by the Fortius software.
Source: http://www.lunicus.org/tacx/Fortius.htm
To use the Fortius Software in Windows 7, Windows 8 or even on a Mac, it is best to create a Windows XP/Vista Virtual Machine, unless you have an old laptop or computer you can install Windows XP on.
Тренируйтесь много, отдыхайте ещё больше!

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