Flickering Lights

I see from your signature you are a MTH service tech. In the service manual for PS2 a fix is described for the problem. The solution is involved as it requires as I remember re routing some wires and adding a resistor. It may be easier to simply rewire the lights converting to LEDs and  to run off track voltage.

 

Here is a simple circuit for a headlamp

 

 

 http://www.jcstudiosinc.com/Bl...9&categoryId=426

 

 

Dale H

Hi Doc,

 

In your service manual section 5 page 23 it will start telling you what to for that problem. I have done a few of these and never had to go further than swapping the blue ground wires. You might have to extend one of the wires and that usually does it.

 

Ralph

 

Trains-n-Lanes

MTH ASC service tech

Dealing with the same issue on the LED markers for a Imperial big boy. The FET's on the MUX board seem to catch some interference.  The 18awg ground wire works as a great shield for the data connection.  Service manual describes this process.

I want to thank all of you for your input and replies to this rather daunting task. I'm always looking for a better way to do things as I'm a "dyed in the wool train guy."

It's nice to see so many of you are too!

 

FYI

I am converting a lot of different Locos to LED use. I feel this is a better, brighter, cooler and more permanent solution to a number of problems weather MTH or any other system.

 

This forum seems to be the best place to share ideas and learn, I appreciate that we have a positive environment to do this.

 

Thanks to you my friends and OGR!

 

doc

Dave,

 

Did you just try swapping the blue wires from the mux board to the 12 pin connector on the board? All your doing is swapping the wires. It takes a little, but you can lift up the little tab that holds the pin in and pull it out. Plus make sure you mark where they go just so you don't forget.

 

Let us know what happens.

 

Ralph

Trains-n-Lanes

MTH ACS service tech

Ralph,

 

I did not try that.  I got the board back from MTH today.  I will put it in tomorrow.

 

I will keep that in mind for the future.

 

Thanks,

 

Dave

Funny my dad owns a Santa fe J-1A from 2001 and it does the same stuff when I turn the smoke unit on anyway

Funny my dad owns a Santa fe J-1A from 2001 and it does the same stuff when I turn the smoke unit on anyway

I had the same problem with the 2008 cab forward. Turn on smoke unit, marker lights/cab light flickers. Turn off smoke unit, lights steady. I think it was Greg from Canada who responded first and said it was the MUX board. I ended up sending the engine back to MTH for warranty repair. Seems to be ok now.

Phil