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Hi! I am just completeing my first sound installation and having a slight problem. I have an Atlas Trainman RS-32 and am installing a Soundtraxx Tsunami TSU-AT1000 251 v12. All went fine except that the lights (the original Atlas LEDs) would not turn on. I discovered I had the polarity wrong, so switched them and they came on - except they were reversed! Headlight came on when going in reverse and backup light came on when going forward. So I just added some wire and hooked the LEDs up to the opposite ends of the board. When I put the train back on the track and turned the lights on I heard a POP and a little plumb of white smoke! I took the train off the track and un-soldered the lights. Now it runs fine - without the lights - sound and motor functions work correctly.
My question is twofold - 1. What was the "pop" and white smoke? I thought maybe the capacitor, but would the board still function if the capacitor were blown? 2. how can I correct the "reversed" light effect if I ever figure out question #1...
Thanks,
Mark
I had a similar issue with my Bachmann Plus GS4 4-8-4 SP Daylight. I installed a Digitrax HO SDH164D for DCC and sound. I completed the install and my headlight came on in reverse. I had inadvertently reversed the polarity of the motor during the install. I took it apart again changed the polarity of the motor then the engine controller must have shorted out. A better solution would have been to leave the polarity reversed and change the CV setting of the decoder to reverse the lighting effect. I feel your pain.
-Art
Good idea, Art. I will have to check the Soundtraxx manual to determine which CV controls the lighting "reverse" effect...
I had a similar issue with my Bachmann Plus GS4 4-8-4 SP Daylight. I installed a Digitrax HO SDH164D for DCC and sound. I completed the install and my headlight came on in reverse. I had inadvertently reversed the polarity of the motor during the install. I took it apart again changed the polarity of the motor then the engine controller must have shorted out. A better solution would have been to leave the polarity reversed and change the CV setting of the decoder to reverse the lighting effect. I feel your pain.
-Art
As someone once told me......"Perfection is the enemy of Good". LOL
-Art
Good idea, Art. I will have to check the Soundtraxx manual to determine which CV controls the lighting "reverse" effect...
CV29 controls the reverse bit. Here's a CV29 calculator:
http://www.2mm.org.uk/articles/cv29 calculator.htm
If it's only the light that is reversed then you have the motor wired backwards, or the front/rear LED's switched. The CV29 bit is for when the entire loco is backwards. (motor and lights)
If it is just reversed motor leads, then why is the motor direction correct according to my NEC throttle. If I reverse the leads, won't the engine travel in the opposite direction according to the cab? I do notice that there is a FWD indication on the soundtraxx board, and it is pointing in the wrong direction...
If it is just reversed motor leads, then why is the motor direction correct according to my NEC throttle. If I reverse the leads, won't the engine travel in the opposite direction according to the cab? I do notice that there is a FWD indication on the soundtraxx board, and it is pointing in the wrong direction...
If the motor direction is correct to the throttle then the LED's are reversed. The front LED is connected to the rear led wire/connection. Just swap the 2 wires. The common wire can be left alone.
Hi! I am just completeing my first sound installation and having a slight problem. I have an Atlas Trainman RS-32 and am installing a Soundtraxx Tsunami TSU-AT1000 251 v12. All went fine except that the lights (the original Atlas LEDs) would not turn on. I discovered I had the polarity wrong, so switched them and they came on - except they were reversed! Headlight came on when going in reverse and backup light came on when going forward. So I just added some wire and hooked the LEDs up to the opposite ends of the board. When I put the train back on the track and turned the lights on I heard a POP and a little plumb of white smoke! I took the train off the track and un-soldered the lights. Now it runs fine - without the lights - sound and motor functions work correctly.
My question is twofold - 1. What was the "pop" and white smoke? I thought maybe the capacitor, but would the board still function if the capacitor were blown? 2. how can I correct the "reversed" light effect if I ever figure out question #1...
Thanks,
Mark
The board could still work with lights blown, mine does, the pop and white smoke may have been your l.e.d's going to Heaven, or the speaker making a sound, if you shorted out lighting circuits on the board, there will be no power between white wire(headlamp) and blue(common but also a +voltage) the blue wire is + volts for lamps. Also check yellow to blue, then check your F5 F6 outputs to blue, if you have voltage at these places, then the L.E.D's are shot. You can fix the problem of the lights not working correctly, by changing CV 49 front lamp CV 50 rear lamp Or you can reverse motor wires.
Just remap the headlights.
My guess is that you short an out to the lights when you re-wired them to the other ends of the board. Always examine your soldering with a good magnifier for shorts.
If a light output from the decode was shorted them that output is fried but apparently didn't damage the motor outputs.
There is a possiblity that some small part on the board fried instead of a chip output. Use a good magnifier and look for any burnt part (likely all you'll see is a tiny burnt spot or hole in a part).
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