Tmcc loco starts in reverse

The motor leads are reversed.

Look at it in a mirror. it will be fine. Don

Have you owned this from new? If not someone may have installed K-Line cruise. In any case reversing motor leads should fix the starting in reverse and tender light issue. Coupler problem may be the connector is in the wrong receptical or the triac in the radio board needs to be replaced. If you can borrow an R2LC from another engine it may help pinpoint the problem.

Pete

I had a engine that did the same thing. It was a bad R2LC board. I replaced the board & the engine started in forward & coupler worked. I replaced the coupler TRIAC on the old board but it still started in reverse.

Has it ever been configured in an MU?  Have you reset it's configuration?

Yeah - try the reset first.

Per the lights, I have seen steamers with confused tender lights. I have one that does it every so often. When it does I do an "AUX1" "0" entry and it functions normally. But do the features reset before anything else.

scale rail posted:

Look at it in mirror. it will be fine. Don

Thanks Don. Fell on floor LMAO!!!!

Can't take anything to serious. I find a good night sleep helps also!

Thanks to everyone for the advise and Don for the chuckle! John you may remember getting me right once before! (see pic) If I installed this wrong could this cause these symptoms? I never installed a cap for the erratic coupler and wonder why it quite

Two more things. I have been using reset #4 seems to work but read that I should be using#740. Also what code works for my nyc century f3's? Reset #6 include's diesel w/cab light,pullmor motored f3's. While #36 include's 6-38106 NYC f3's specifically to my loco's. Is it just me? 

K-Line scale Hudson with non cruise TMCC. Assuming the electronics are original the correct feature code is Aux1 4.

Pete

Yep, if the reset doesn't fix it, I'm confused.  Did it ever run correctly?  Any chance the cable between the motherboard and DCDR is scrambled?

It looks like the R2LC and DCDR are in the locomotive, so it could also be something mixed up in the tether.

John mentioned: if the unit was used in a TMCC consist, it will remember the last programming.   Assign the Engine to TR0, which removes all consist programming.   See the TMCC complete guide to command control for additional information.   Click on the underlined phrase to link.  Consist programming also effects coupler(s) and lights.    I could be wrong and often.     Mike CT. 

Well I reversed the motor leads and lo and behold it now starts in forward. But to my amazement the tender light straightened out! I wanna know why,how and what reversing the leads has anything to do with that light function. It's definitely not the cherry switch because just a direction command will cycle the light. Intriguing....Still no coupler and what/where is the TRIAC? Also any thoughts on my f3 delema? Thank you all for your assistance and concern 

Dumb question, does the coupler fire if you hit the front coupler control?

Never any dumb questions from you John. But a bunch of dumb one's from me! Lol. Yes I have tried. You know what they say,great minds. What and where is a TRIAC? I assume on one of the tender boards. I followed the pc to a power transistor black 3pin. Am I in the right area? Thanks 

Anyway found the coupler problem!!!

The tender light was right all along. The only problems were the motor going the wrong way and the coupler not firing.

If that trace cooked, one wonders if the triac is shorted.  FWIW, for the K-Line TMCC, they use the R2LC triac, that's in the locomotive.  Here's the triac positions on the R2LC.

Thanks gun you pulled through for me again and many thanks. That would explain the burnt up teather I  recently replaced. Brian from Brasseur's had the last one earth. By the way this TRIAC does test bad along with this cap.( see pics).doesnt discharge

That triac that you're holding up isn't the type that's in the R2LC, so I'm not sure where it came from.  The triac on the R2LC is a TO-126 package, you appear to be testing a part with the TO-220 package.

I'm having the same problem with a K-Line F40PH, and I was wondering if you guys could help me out too. The directional lights seem to be fine, but it will go in reverse after the initial start-up, and I was gonna try to reverse the motor leads, but I just don't know which wires to unplug.

Before you start swapping motor leads, do the direction light agree with the direction it's going or they out of sync?  How about the electrocouplers, does the REAR button on the remote really operate the rear coupler?

@gunrunnerjohn posted:

Before you start swapping motor leads, do the direction light agree with the direction it's going or they out of sync?  How about the electrocouplers, does the REAR button on the remote really operate the rear coupler?

Yeah, the lights do go on in the proper direction. Also, I have a conventional setup, and this locomotive had thumbtack style couplers, so only operating track can open the couplers.

Well, then they're no harm in swapping motor leads.

@gunrunnerjohn posted:

Well, then they're no harm in swapping motor leads.

Thank you. The only issue I have now is which wires to change around. I don't know if there is a wiring diagram somewhere I could look at. Probably not, since the company's been gone for 15 years, lol.

Well, it's pretty easy.  This vertical board in the back is the motor driver board, and between the ears of the heatsink there's a 4-pin black plug.  Two of those wires are the motor wires, and two are the track power.  The two on the bottom of the connector, closest to the chassis, are the motor leads.  Since you need a special tool to take those pins out, I'd probably just cut the wires at a convenient place, and splice them with a piece of heatshrink over the splice.  Please DON'T use black electrical tape!

You can also swap the leads on each of the motors, it's just twice as many connections to do.

Ron464nyc - Regarding the reset code for your F3s with Pullmor motors, the reprogramming codes shown on the chart accompanying the Lionel Instructions to Restore TMCC Functions page I have indicates the code is #6 for PULLMOR motored F-3s.

Good Luck!

@gunrunnerjohn I see it, thank you very much.

If used as part of a consist and was programmed as the rear unit running backwards.  Assign the unit to TR0  Train 0 to clear all Consist programming.    From my comment above.

TMCC guide to command control.   page 22.

Mike, it that were the case, the lights should also be reversed.