K-line 4-6-2 shut down and I’m entirely clueless as to what’s wrong

Have you tried Brasseur Electric Trains? They have the remaining K-Line parts inventory, and from the sound of their name, appear to do service as well.

---PCJ

I’ve looked at their site I’m going to call them in the morning tomorrow and see what they say and if I can send the locomotive in. 

All the electronics in that engine, with the possible excpetion of the smoke unit ate Lionel.  If you adventerous you problably sort it out youself.  If it is the motherboard I think it is I have a partial trace completed and will attach it.

When calling around, thell the its a Lionel RailSound/TMCC equipped K-Line.  If you can get the revision off the TMCC card and the RailSounds card.

While your getting it services, consider installing a Super Chuffer II and a fan driven smoke until.  I have had issues with the piston driven smoker on my Kline.

Rob Johnston posted:

All the electronics in that engine, with the possible excpetion of the smoke unit ate Lionel.  If you adventerous you problably sort it out youself.  If it is the motherboard I think it is I have a partial trace completed and will attach it.

When calling around, thell the its a Lionel RailSound/TMCC equipped K-Line.  If you can get the revision off the TMCC card and the RailSounds card.

While your getting it services, consider installing a Super Chuffer II and a fan driven smoke until.  I have had issues with the piston driven smoker on my Kline.

Thank you so much, this has been super helpful

If I may suggest, don't just give the topic just "K-line". Tell us a little more what the problem with your engine is. You will get more help that way. Don

scale rail posted:

If I may suggest, don't just give the topic just "K-line". Tell us a little more what the problem with your engine is. You will get more help that way. Don

Fixed

So...what was the problem?

Mark in Oregon

Strummer posted:

So...what was the problem?

Mark in Oregon

The locomotive was running perfectly fine. The sound and lights all worked properly. It just stopped, the headlight on the loco shut off, the tender back up light and markers were off and sound was dead and locomotive wouldn’t run at all. There was no visible damage inside or out  and there was no smoke to indicate a possible short in the system. The burn marks or broken wires either. 

I'm not familiar with that particular engine, so the following might be total crap, but maybe not...

If I'm reading it correctly, lights and such in the engine work, lights in the tender don't, and the motor in the engine doesn't respond.  Could there be a connectivity issue in the wiring that provides power to the tender lights and to the motor in the engine? 

The observation that there was no short, burning smell, or other event associated with the failure makes it sound like something just broke loose.  Loose or broken connections aren't always readily visible, and they can be challenging to find.  The bright side is that once found, they're usually inexpensive to fix.  

Good luck - I hate it when stuff like that happens.

The first thing I would do is pull out the out the radio board and plug it back in making sure all the pins are lined up. The radio board is the vertical board next to the speaker. It drives both the motor board and tender back up light as well as the headlight, smoke unit and rear coupler.

If after plugging it back in it doesn't run then the board may in fact be bad. Do all this with the tender shell still removed.

Pete

OldO27collector posted:

scale rail posted:

If I may suggest, don't just give the topic just "K-line". Tell us a little more what the problem with your engine is. You will get more help that way. Don

Fixed

Oh, I see; you meant "fixed" as in you corrected the topic line.

I thought you meant you'd "fixed" the engine!

Sorry... 

Mark in Oregon

That's a bog standard K-Line locomotive, it has Lionel TMCC boards.  I'm at a total loss why a train store says it can't be repaired.

I'd start by checking the tether wires, a common source of failures.  Then, reseat all the boards and connectors in the tender.

Indeed, any Lionel service station should be able to handle this. Besides all of the boards are available from Lionel if not Brasseurs and for half price if you wait until the LCCA open house next fall. Of all command control engines made this is about the easiest.

Pete

Norton posted:

The first thing I would do is pull out the out the radio board and plug it back in making sure all the pins are lined up. The radio board is the vertical board next to the speaker. It drives both the motor board and tender back up light as well as the headlight, smoke unit and rear coupler.

If after plugging it back in it doesn't run then the board may in fact be bad. Do all this with the tender shell still removed.

Pete

I’m going to try that today and I’ll report back with the results, funny you mention the coupler because when it shut down I remember the coupler being sprung open.

sam

Norton posted:

The first thing I would do is pull out the out the radio board and plug it back in making sure all the pins are lined up. The radio board is the vertical board next to the speaker. It drives both the motor board and tender back up light as well as the headlight, smoke unit and rear coupler.

If after plugging it back in it doesn't run then the board may in fact be bad. Do all this with the tender shell still removed.

Pete

i managed to unplug the board and then plug it back in and i still got the same result so im thinking the board is bad now. thank you for helping me figure this mess out.

Sam

OldO27collector posted:

Norton posted:

The first thing I would do is pull out the out the radio board and plug it back in making sure all the pins are lined up. The radio board is the vertical board next to the speaker. It drives both the motor board and tender back up light as well as the headlight, smoke unit and rear coupler.

If after plugging it back in it doesn't run then the board may in fact be bad. Do all this with the tender shell still removed.

Pete

i managed to unplug the board and then plug it back in and i still got the same result so im thinking the board is bad now. thank you for helping me figure this mess out.

Sam

Sounds like the radio board to me. Do you have any other TMCC RS4 locos? When I was troubleshooting this issue with a Kline EP5 I swapped the board with another similar generation Kline diesels board. 

As other posters have mentioned it’s a pretty standard Lionel board. You can easily find it at a reasonable prices.

BTW Beautiful loco. My blue Kline B&O 4-6-2 is one of my favorites.

Alex W posted:

OldO27collector posted:

Norton posted:

The first thing I would do is pull out the out the radio board and plug it back in making sure all the pins are lined up. The radio board is the vertical board next to the speaker. It drives both the motor board and tender back up light as well as the headlight, smoke unit and rear coupler.

If after plugging it back in it doesn't run then the board may in fact be bad. Do all this with the tender shell still removed.

Pete

i managed to unplug the board and then plug it back in and i still got the same result so im thinking the board is bad now. thank you for helping me figure this mess out.

Sam

Sounds like the radio board to me. Do you have any other TMCC RS4 locos? When I was troubleshooting this issue with a Kline EP5 I swapped the board with another similar generation Kline diesels board. 

As other posters have mentioned it’s a pretty standard Lionel board. You can easily find it at a reasonable prices.

BTW Beautiful loco. My blue Kline B&O 4-6-2 is one of my favorites.

I don’t have any other TMCC locos, this is actually my first and only loco that isn’t a Lionel post war. Thank you, it’s the pride of my collection.

I sent you an email.