Hi John
There is a firm in Switzerland that manufactures modules for Swiss models including the Ae 8/14

https://luessi.ch/eshop/oc/pcb-f....html?search=ae%208%2F14

and for a Trix version, it says to use also a 8015 TRX dummy plate like this
https://luessi.ch/eshop/oc/index...duct&product_id=2475

Additional, you need a decoder with NEM 8 Pin interface.
Not sure if you can keep the existing headlights or replace them with this module
https://luessi.ch/eshop/oc/index...437&search=ae+8%2F14
I hope this helps you (a bit extra cost but very clean result
Cheers
Jean

[img][/img]

[img][/img]

[img][/img]

Converted using Luessi PCB boards & at the time Loksound V3.5 decoder.
Plenty of space to work with.

Thanks guys! Not sure why I had trix in mind, Luessi is what I needed!

Hi guys,

The Luessi board came, and I put it straight to work. I have a bit of an issue though, and was hoping for your thoughts before I start un-doing things:

The board went right in with a Lokpilot 4.0 MFX, and the motor(s) run and reverse as they should (after sorting the green and blue directional leads, which I always seem to get backwards!). The lights on both sides come on and off upon F0 command, but the problem is they seem stuck on the single white "tail light" mode on both sides.

The black wires between locomotives I have doublechecked. I believe they are indeed all in order, going to the parallel solder pad on the opposite opposite board. Which is where they originally were, unless I made a mistake.

Extra background information:
- This was originally a delta locomotive
- I did pull two black wires with suppressors/condensers, which did not seem to have a home in the Luessi wiring. Perhaps that relates to the issue? I was assuming they were AC motor coil accessories to be discarded
- I've traced the boards for continuity. Everything seems to line up end-to-end. I don't get that from the yellow and grey wires, but presumably that is due to the diodes and resistors. They do have continuity to the point of the resistors/diodes on either side, and I've traced the circuit between them
- I Have another Ae 8/14 with factory MFX and a newer PCB. I've traced continuity on that with the same results and patterns. (including nothing from the yellow/grey)

Does anyone have an idea what might be wrong here? I don't think it can be the decoder because the F0 on/off is functioning

Correct, 2 swiss taillights at all times (one on each side), regardless of direction

John-I converted one of these for a friend many years ago. Generally speaking, with his boards, he uses Aux1 for the Swiss lighting effect. I would check and see if somehow this is reversed.

Thanks everyone!

I was under the impression this board was has the swiss lighting built-in. I hadn't thought that it still needs the programming.

I have disconnected the lighting from one side of the loco to the other as a test: same issue (tail light in both directions, and no changeover to headlight). This means the issue is not the connection between locomotives.

I also tested the diodes and the resistors on the board- all ok.

Lastly, I tried another decoder, despite doubting that to be the issue. That wasn't it either...

Dave/Pefu/Francisco - did you need to program the lighting on yours?

Thanks Dave! I do indeed have a programmer, but I think the issue is within my wiring, or less likely, the board.

For fun, I swapped the headlight and taillight wires (yellow and grey) at both ends of the locomotive. (specifically, where they attach to the PC boards) I then had directional taillights. Knowing this, it means the lights were indeed working properly: it was the bulb which is always on in either direction I was experiencing.

Which leads me to the next learning: the other LEDs may be blown out? They aren't working on a 2v direct DC test. So they are likely toast. A voltmeter test measured 16.5v DC to the lead: which surely must have blown them. OR, were they already blown, and 16.5v is the voltage reading on the circuit itself since the LED/diode is broken? The 16.5v is working directionally, so "control" is ok, but the voltage is obviously not correct

I just need to sort whether a new light board will solve it, or whether the Luessi board is the culprit...

I did not test the original delta lighting before conversion, as it is the last thing I'd have thought to do.

Slight correction to the above, but only a technical point. The blue wire is the electronic positive and the white and yellow for the lights are actually electronic negative.

Hi all,

I took out my other AE 8/14, a Marklin 37596, and compared lighting circuits tonight. The results give some hints:

Both Locomotives:

Tail light circuit measuring ~1.8v to the LED.

Headlights:

- working Marklin 37596 measured 3.8v to the two additional headlight LEDS, which is also in line with the ~1.8 per LED
- Broken 33591 with Luessi board measured ~16.5v to the two (blown out) headlight LEDS
- Both locomotives are reversing and turning off the headlight circuit accordingly.

So I am near-positive the Luessi board has a problem/is no good, and therefore blew the headlight LEDs. The question is where/how so I can somehow try and rectify this. The diode shouldn't impact that, so I look to the resistors or the decoder output. I already tried a decoder swap, so that shouldnt be it.

So the question: how can I test the resistors to confirm they aren't working. (or they are working and it is something else)

Wow, talk about finding exactly what I was looking for!

I had a Trix AE 8/14 - 22580 - that I bought new like 24/25 years ago. I sold it, but have now acquired a NOS Trix 22580. I am contemplating doing this very same upgrade. These boards make this look a lot easier. I intend to use a single LokSound V5 decoder and a speaker in each end.

I know this being a Trix model it is somewhat different than a Marklin model. I hope someone can tell me if I need these little lighting boards. Also, which kit would I use to upgrade to 5 pole motors?

Thanks much! This will be a fun project to upgrade my favorite Swiss locomotive model.