Electronics and DCC

Hello,

I installed Tsunami decoder in my Kato SD90. Everything works good except the headlight. It doesnt't go off. I can't turn it off with F0 button. It lights continuously even the engine runs in rewerse. The rear light works properly. Lights are connected properly as well. The headlight to the white wire and the rear light to the yellow wire. Does anyone have any idea what might be wrong?

Regards,
Arek

 Is the headlight hooked to the white and blue wires? Perhaps a small strand of wire is touching something? Try a hard reset and see if it works then.

      Pete

 Is the decoder hard wired in, or plugged in to the board. From a thread the other day it seems like Kato has done some nifty tricks on their circuit boards to get alternating ditch lights as well as front and rear lights with just 2 total functions used. Forget which particular models that is on, and since I don't do modern I don;t have any handy to look.

                                         --Randy

The decoder is hard wired in. Connections are ok:
1. Headlight - white&blue
2. Rearlight - yellow&blue
3. Fx5 - brown&blue
4. Fx6 - green&blue
Fx5 & Fx6 are configured as ditch lights. All lights except the headlight works properly. I can turn them off, the rearlight depends on the direction. I did the hard reset as well but it didn't help.
The headlight lights continuously as soon as the power is in tracks. I have no idea what is going on. Maybe connections in the decoder are wrong and the output for headlight is broken.