Hey guys. I put my Deluth Missabe on the track to run for the first time in a while. It worked fine but then the front truck jumped and sparked and now it won't go. All the sounds work perfect just no motion. Fried a board ?
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Jeff , this sounds very similar to the post MTH 2 RAIL Allegheny DCS question... help !?!??! " . With replies by techs GGG and GRJ.
I also am having a 3 rail system ps3 steam engine problem with all functions except for forward and reverse movement.
Good luck. 
Yep that was my post earlier- I’m curious to see what the verdict for your loco is- sounds an awful lot like mine…
@Rick Stoffregen posted:Yep that was my post earlier- I’m curious to see what the verdict for your loco is- sounds an awful lot like mine…
Well Rick , I have the three rail Ps3 Allegheny. I've been running it for quite some time and I replaced the head light LED . Put it back together and ran one of the screws through the headlight wire. I ran the headlight off of the marker light wiring with a resistor. Then the original boiler board ( engine ,not tender ) smoked after about 4 inches of forward travel. No shorts or sparks. I figured when the original headlight FET blew it affected the board.
I had a donor boiler board from either a Challenger or Yb which was slightly different on some components .
I was able to get absolutely every function as you stated......with no forward or reverse ......after even a good test on the motors .
I had posted photos of the two boiler boards on a different thread but I did not have photos of the OEM tender board which is of course different from your upgrade board. I didn't see anything on the tender board that seemed to be suspicious.
I am interested in GRJ's photo of your type of board with the motor FETs . I'm thinking of taking another look at the tender board if it has the motor control.
Right now a new boiler board may indeed be needed but I can't find one yet.
Hope your comunication with GGG might work out.
Wow Dallas, aren't electronics fun? It was so much easier running the ole' Lionel Postwar stuff! I will follow up with GGG and let you know what he says. I'm hoping I can just send the board to him and let him fix/replace the FET. So frustrating.... it ran so smoothly and so well and then after the derailment, it just quit running. Being a 2 rail O scaler, my equipment seems to be much more finicky than when I was doing 3 rail. I just don't want to have to be constantly changing out boards in my locos every time a little hiccup happens.
I do have envy with one of my model railroaders in our group here in Cincinnati.... he's a "dead rail" guy and doesn't have to deal with this!
Rick
Did you try a conventional or dcs feature reset? The derailment may have caused a memory glich. How are you oprating, dcs or conventional, is the battery good/charged? G
Item number? MTH has made several DMIR locomotives. An item number will help us help you figure out the issue easier.
I agree with GGG feature and factory reset I have seen work before!
PS I have that exact same Engine and love it works great!
Alan
@Rick Stoffregen posted:Wow Dallas, aren't electronics fun? It was so much easier running the ole' Lionel Postwar stuff! I will follow up with GGG and let you know what he says. I'm hoping I can just send the board to him and let him fix/replace the FET. So frustrating.... it ran so smoothly and so well and then after the derailment, it just quit running. Being a 2 rail O scaler, my equipment seems to be much more finicky than when I was doing 3 rail. I just don't want to have to be constantly changing out boards in my locos every time a little hiccup happens.
I do have envy with one of my model railroaders in our group here in Cincinnati.... he's a "dead rail" guy and doesn't have to deal with this!
Rick
I still run the Switcher 6220 from the 1950s that Dad bought us for Christmas Rick.
No two ways about it being a lot sinpler. I fixed the reverse / neutral / forward apparatus and put new brushes in the motor but overall not much to do with electrical......however........
.........after the introduction to Mike's MTH product inovations I was smitten. I couldn't get over so many things could be done with with these trains.
I think getting more involved with learning about the electronics of these things is the way to go . Since a lot of info isn't given out , the best help we have IMO are the forums ?
I've had the two 'toots 'affirmation on conventional and the DCS /TIU factory and feature resets that GGG suggested....... I'll have to give it another try.
I'll throw in some pics of where I'm at...... I sure hope your frustration is over soon Rick . 
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@Dallas Joseph posted:I still run the Switcher 6220 from the 1950s that Dad bought us for Christmas Rick.
No two ways about it being a lot sinpler. I fixed the reverse / neutral / forward apparatus and put new brushes in the motor but overall not much to do with electrical......however........
.........after the introduction to Mike's MTH product inovations I was smitten. I couldn't get over so many things could be done with with these trains.
I think getting more involved with learning about the electronics of these things is the way to go . Since a lot of info isn't given out , the best help we have IMO are the forums ?
I've had the two 'toots 'affirmation on conventional and the DCS /TIU factory and feature resets that GGG suggested....... I'll have to give it another try.
I'll throw in some pics of where I'm at...... I sure hope your frustration is over soon Rick .
Uh why is the connector shell missing from the 8 pin connector on the boiler board?
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@Lou1985 posted:Uh why is the connector shell missing from the 8 pin connector on the boiler board?
I removed it Lou to get to the interior solder joint at the cap so I wouldnt deform it with heat. I did replace it before I put the board in the inventoty slot. 
@Dallas Joseph posted:I removed it Lou to get to the interior solder joint at the cap so I wouldnt deform it with heat. I did replace it before I put the board in the inventoty slot.
Ah ok. That makes sense.
@Dallas Joseph posted:I am interested in GRJ's photo of your type of board with the motor FETs . I'm thinking of taking another look at the tender board if it has the motor control.
That's a diesel board, there are no motor FETs on the steam tender board, they're on the boiler board.
@gunrunnerjohn posted:That's a diesel board, there are no motor FETs on the steam tender board, they're on the boiler board.
That larger boiler 'donor board ' in the photo doesn't seem to have any deformation on it. I'm guessing it would be on the bottom of the board. I'll have to take a better photo it.
The two sizes of boiler boards are non-EMI for the smaller one and EMI for the larger one. They are interchangeable as long as you use late enough chain files.
This is a previously upgraded to 2.0 model and yes I did a factory reset already with no luck.
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If this is an upgrade, we're having the wrong conversation. The upgrades get the single PS32 board and not the separate boiler and tender boards.
@Jeff Donald posted:This is a previously upgraded to 2.0 model and yes I did a factory reset already with no luck.
Ah there we go. PS1 to PS2. Probably used the PS2 upgrade kit with the 3V board. You're going to want to check the motor FETs on the board in the tender if a reset won't work. Good news is that it can probably be fixed.
Also what transformer are you using? If it's a postwar ZW, KW, etc does it have external protection like fast blow fuses or breakers? With adequate circuit protection a minor derailment shouldn't be nuking board components.
@gunrunnerjohn posted:If this is an upgrade, we're having the wrong conversation. The upgrades get the single PS32 board and not the separate boiler and tender boards.
Yup. The other two poster's problems aren't related to the OP's.
@gunrunnerjohn posted:The two sizes of boiler boards are non-EMI for the smaller one and EMI for the larger one. They are interchangeable as long as you use late enough chain files.
EMI ( acronym for ? )........... for the larger board .🤔
How will I know if I have the latest chain files ? 🤔
If not where can I get them ? 🤔
EMI - Electromagnetic interference is a phenomenon that may occur when an electronic device is exposed to an electromagnetic (EM) field. Any device that has electronic circuitry can be susceptible to EMI. ... Emissions are a measure of electromagnetic energy from a radio frequency source.
Truthfully, I have no idea where to get the latest chain files, with the demise of the unified MTH, some things got scattered. Resources that the ASC's used to have no longer exist. I have what I believe to be the latest set of PS32 chain files, but I have no idea if someone at some MTH entity would get annoyed if I posted them.
For the person with the PS-3 you should have started your own thread, PS-2 and 3 are very much different. You just confused the issue with the original poster. BUT it is obvious the motor fet is shorted on your boiler board. Need it replaced or a new board.
For original poster, rare that 3V board have the fet go bad, but it does happen. The board can be removed and tested/repaired separately. G
