Locomotive Roster: JR Series 285 "Sunrise Express"; Kato 10-387
Allright onto serious stuff....
This was a relatively easy DCC install, and rather than show you the details here, I'll just refer you to this great post on the JNS Forum from Inobu who provides instructions on how to install the decoder on the nearly identical chassis/motor of the JR 500. I used the standard Digitrax DZ125 which not only seems to be working for me lately, they are quite cheap!
As with many (most?) Kato train sets, the motor car is usually one of the center cars, which means you'll also need to install function decoders in the cab cars to get the lights to work properly. I haven't done this yet, so rather than directionally controlled white/red lights...I have full time orange lights.
I'm also a bit on the fence about installing interior lighting....it always seems a bit disappointing with all the flickering and such, and the lighting always seems way too bright for the prototype.
Ironic huh? A guy that puts lights in all his buildings and runs trains from all sorts of countries is now worried about being 'prototypical'?
Video proof that even Japanese trains can use a little bit of weathering: