The installation is for HO-Scale Con-Cor Burlington Zephry . It uses TCS DP2X or T1P-SH or MC2P-SH decoder and was performed by a TCS Customer
Train Control Systems DP2X decoder is the best choice for this plug n play installation! A T1 or MC2 decoder with short harness would also work. The train looks good and runs very well. The lighting for the interior lights, head lights, rear light, and rear red marker lights all work nicely. This train comes with a DCC socket. The DP2X is plug n play for it. There is room to plug the decoder in only one way, which is the way it needs to be to operate the headlights properly. Important note: There is a capacitor across the motor circuit that needs to be removed. If left on, the train will run to fast in DCC operation.
To remove the body gently spread the shell starting at the rear and work your way forward. There are four hooks on each side that must be disengaged and the shell will lift straight up. The plug at the rear of the loco is for control of the rear headlight.
Photo below shows DP2X decoder plugged into NMRA socket. The decoder plugs in slightly cocked because of the bulkhead near the socket, however it does fit securely with good connections and works fine with no problem.
There are ten pins instead of the normal eight pins in the NMRA socket. Pins nine and ten are used for sound decoder installations. Plug the DP2X decoder towards the engineers side of the socket. Important note. The motor is reversed wired for normal direction control. This can easily be correct in one of two ways. Add one to the value in CV29 of the decoder.
Example: if CV29=6 (two digit addressing) set it to seven. If CV29=38(four digit addressing) make it 39. Second option is to reverse the motor leads where they are connected amid ship on the lighting board.
Photo on left shows "C1" capacitor before it is removed. Photo at right shows "C1 capacitor removed. The train will run to fast in DCC operation if the capacitor is not removed.