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Greetings From A New Member,

 

While new to this wonderful group, I'm a veteran model railroad enthusiast currently in "O" scale.  Here's my dilemma.  I have an older MTH PRR K4 Pacific (item number 330-1115-1) with First Generation Proto Smoke and Proto Sound.  Several years back, she quit smoking AND running so I put her away with the intention of having her repaired.  Fast forward to today.  I pulled the shell and removed the PC Board that controls the smoke and engine functions and I tested the motor separately using a DC transformer from an old HO set I had laying around.  The Motor Works Just Fine.  It's my understanding that these early PROTO SMOKE boards went bad and I think that is where the problem is.  Here's where you guys come in.  Where can I find a replacement board or a complete smoke unit that I can bolt right in and get this rather nice K4 running again.  BTW, before I took the board out I put some power to the engine with the tender connected the PROTO Sound started working by sounding the 3 bells before going into "Reset Mode".  Any Help will be greatly appreciated.  I really could use an exploded parts diagram and parts list as well.  Thanks in advance and Merry Christmas!

 

Regards,

Bob Cvarovsky

Chief of Police (Retired)

The Newburgh Heights Police Department

Original Post

You can repair the PS/1 smoke units, they're a stand-alone unit that runs off track power.

 

Did you get three bells, or three clanks?  Three clanks is indicative of a bad battery that has scrambled the memory of the PS/1 board set.  There is a specific reset chip to correct this, MTH techs have them, and you can buy that chip for that specific issue.

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