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[quote user="BNModeler7"] Hello, I got the Decoder in the mail today. I have installed it into the lococmotive. Do I have to do anything else or can I run it now? <div style="clear:both;"> </div> [/quote] Is the motor isolated from the frame?  What you have is a hot frame locomotive.  You need to pull the motor out (either 4 screws on the bottom of the fuel tank or just rubber mounts press fit into the fuel tank).  Verify that there is no tab under the motor touching the frame.  Depending on the vintage of locomotive this tab may or may not be present.  From the appearance of the lighting board, you have a wire going to the lower motor contact.  This is a good sign that there is not connection to the frame;  however, I would check anyway. If the tab is present your decoder will be cooked on initial application of power. There should not be anything installed in the 8pin socket if you are using a 9pin decoder.  The plug that goes in the 8pin socket is for DC use only (in effect it will do exactly the same thing as having the motor connected to the frame of the locomotive with the tab. For future reference any locomotive that has those metal tabs coming out of the locomotive trucks has a hot frame.  Edit: Also most people will recommend that you remove those plastic clips one at a time and solder the wires to the tabs.  Saves headaches later.  They do not provide a good connection.
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