Have you replaced the light bulbs?
The TRIX bulbs draw so much current, that either the overload protection will turn the lights off (this happened with my ESU decoder) or the decoder might let blue smoke out.

I think 1A is total or for the motor, the max for light/Aux is around 250mA on most decoders!

The lightbulbs should work,since locomotiv is equppied with interface which says lightbulbs are ready for digitalsystem too!
It´s problably wrong lightbulbs from factory installed.
Change to 19 Volts lightbulbs itemnumber:610008(?)

Hey guys - I am pleased to say that the krokodil lights are now functioning properly.

Due to my electronic ineptitude, I may have inserted the decoder the wrong way round and even if it was the right way round, I was a bit scared to fully press the plug in, so it was the case of loose contact....

Even so, the krokodil comes to life without the lights on and when it moves a bit, then they come on. I don't know why this is so....I wish they had put LEDs instead of light bulbs, I suppose they wanted to re-create the vintage feel...

Yes George, I agree with Thomas (H0) and Eduardo, you should change the bulbs to 610080 (19Volt)

I found this on a Jaguar Forum:

How many forum members does it take to change a lightbulb?

1 to change the light bulb and to post that the light bulb has been changed.

14 to share similar experiences of changing light bulbs and how the light bulb could have been changed differently.

7 to caution about the dangers of changing light bulbs.

1 to move it to the Lighting section.

2 to argue then move it to the Electricals section

1 to move it to the "lucas prince of darkness thread"

7 to point out spelling/grammar errors in posts about changing light bulbs

5 to flame the spell checkers

3 to correct spelling/grammar flames

6 to argue over whether it's "lightbulb" or "light bulb"
... another 6 to condemn those 6 as stupid

2 industry professionals to inform the group that the proper term is "lamp"

15 know-it-alls who claim they were in the industry, and that "light bulb"
is perfectly correct

19 to post that this forum is not about light bulbs and to please take this
discussion to a lightbulb forum

11 to defend the posting to this forum saying that we all use light bulbs
and therefore the posts are relevant to this forum

36 to debate which method of changing light bulbs is superior, where to buy
the best light bulbs, what brand of light bulbs work best for this technique
and what brands are faulty

7 to post URL's where one can see examples of different light bulbs

4 to post that the URL's were posted incorrectly and then post the corrected
URL's

3 to post about links they found from the URL's that are relevant to this
group which makes light bulbs relevant to this group

13 to link all posts to date, quote them in their entirety including all
headers and signatures, and add "Me too"

5 to post to the group that they will no longer post because they cannot
handle the light bulb controversy

4 to say "didn't we go through this already a short time ago?"

13 to say "do a Google search on light bulbs before posting questions about
light bulbs"

18 who trip over each other in their rush to say "repost!"

1 forum lurker to respond to the original post 6 months from now and start it all over again.

The above makes me so happy to be in a Marklin forum

Per.

Wow!

At first I thought this was a creative work of humor. But then as I read further along, I realized it would be impossible for one person to create such insanity. Only a group of very silly people are capable of that.

I too concur with your assessment of this forum!

Thank you for the morning laugh,

I somehow knew that when I asked for how to change the light bulb...a humourous reply would come along....

But thanks to Ray for clearing it up....

What about the voltage that the decoder supplies to the bulbs? It could be that you can reduce this from the decoder CVs, and then you don't have to change the bulbs.

This makes sense, and I suspect that the uhlenbrock 76320 already does that. But I will contact Uhlenbrock to see if that is the case. I will also try to read the decoder instructions....but my german is poor. However i tested the temperature of the bulbs and it feels only slightly warm after 30 miutes or so of driving...It certainly doesn't look like it will melt the surroundings....Maybe that is the case of a trix loco converted to AC??? because mine is still DC, but it uses pulse DC....