Most of the folks on here become very knowledgeable about the repairs necessary on trains, and who are good LHS/Techs to send a unit into for repair. But not all LHS have techs that know what they are doing.
I just started work on a MTH Premier FEF that had a bad PS-2 5V board. It went to a dealer for ugrade/repair. On the third trip back for failure it was sent to me.
Instead of upgrading the engine and putting the PS-2 3V board back into the engine, they gutted the engine and did a traditional upgrade putting the new harness and board in the tender. When I opened the tender, I found that the tech had used a 9V battery and kept the original 16 ohm speaker.
I am now sorting through the damage. This engine is too nice not to do the upgrade properly and place the board back in the engine to retain all the features. Why the tech did not know the battery and speaker need to be changed to the 3V version is beyond me.
Now is not the time, but I think I need to write a good article on proper MTH repairs for the train magazines. Let the consumer know the right questions to ask before dropping a train off for repair. Get the word out to those that do not frequent the forum. G