I bought a Kato sd40-2 with Tsunami sound. The price for both was less than the cost of the loco so the decoder was basically free. I think the previous owner let it go so cheap as it had some problems. When placed on the track, the prime mover would start up but no other sounds and it would not move. Further investigation revealed the truck wires were loose in the spring clips and the band from the bottom motor lead was very loose. I did a reset but still problems. After playing with it, it would start up and then shut down and do nothing. oops! I broke something?

I put it away for a couple days and read up a little on troubleshooting tsunami's.

Tonight I took it apart. I fixed the motor connections and rerouted the speaker wires. There is a channel next to the fuel tank speaker housing for the wires but somebody routed them under the deck trim so they were pinched pretty good. And there was some fine wire stuck to the diaphram by the magnet. I cleaned it off.The speaker is just loose in the housing.  I think I want to fix that but for now it works I guess. There is plenty of room inside the loco for other speakers and I may experiment with that as I have other sd40's that will be getting loksound.

So it works fine now. Sounds okay but I have no other decoders to compare it to yet. And I discovered a few more minor details. The front plow is damaged and one set of brake hoses is missing and the window shades or whatever they are called have damaged tabs. Its almost like someone pushed this along on the carpet. Anyway, I will order a couple parts and have a nice loco for triple heading. Feeling pretty good about solving the problems and my first dive into the Tsunami manual was fruitful. I need to put one of these computers in the railroad lounge so I don't have to run up and down the stairs when figuring out how to program stuff. Either that or print out written copies of the manuals. I still need to read the manuals many times over before I can make a lot of sense of it. I have the interface for the digitrax but have not had much of a railroad to plug all this stuff into yet.

Looking forward to diving into the world of programming and installing soon as we get a little more track down to drive on. I read the loksound manual and made sense of very little. A few more times thru will help.  Also signed up on the loksound message board.