If it was run without the cap, probably fried the amp. The capacitor in those is NOT a keep alive, it's a filter to keep the not reproducible anyway low frequencies out of the speaker.
I have one I use a sound only, with a really big speaker in an F7 B unit dummy. I would never use one with the motor connected - those decoders don;t even have silent drive so there is a buzz in the motor which, depending on the loco it's installed in, can be louder than the sounds.
--Randy
Modeling the Reading Railroad in the 1950's
Visit my web site at www.readingeastpenn.com for construction updates, DCC Info, and more.
Just an FYI.............Not Working........Sound was maybe a 0.5 on a scale of 1-10 on a new speaker I got; called Soundtraxx (george I think) very helpful but it seems I may need a new on-board amplifier that may not be around anymore due to the year this was made of course..................(my fault for buying used and trying to save a few $$)
Cary
Thanks for the Diagram; I need those........:)
As I said, the cap is in series with one speaker lead.
Rich
If you ever fall over in public, pick yourself up and say “sorry it’s been a while since I inhabited a body.” And just walk away.
Thankyou for the Replies, Did have that Soundtraxx site up and noted of turning up the Volume on CV's 120-123. Could not Find a Master Volume. Found out YES, The Speaker is slighlty Damaged that I had plus a loose wire.........(was in a little case for a year or two) Unsure what I'll do with the Capacitor yet? It also did have a bit of a humming noise but apparently I can adjust the senstivity with the Motor on CV9 175-185; Does this sound Correct? Guess the Goal also is to Get a Decent Speaker Now.
I had some of the LC decoders. Found in a Google search. Been a while.
http://tonystrains.com/technews/soundtraxx-lcleds.htm
The LC uses I think a 33 ufd, bi-polar cap in series with one speaker lead. Need a 8 ohm speaker. Sound will be low with no baffle.
Normal speaker is 28mm round or 16mm x 35mm small oval.
Edit.
Just looked at the diagram in my PC and a 33 ufd, 16 volt bi-polar cap came with the decoders. Put in the positive polarity lead to the speaker.
Here is a link to the manual:
http://www.soundtraxx.com/manuals/lc_manual.pdf
I doubt that the decoder has the power to drive a "home speaker." You may need to try another small one to make sure the problem isn't your speaker. A capacitor should not be necessary.
Check the CV for master volume and some of the other volume CVs.
It takes an iron man to play with a toy iron horse.
I purchased a used Soundtraxx DSD AT100LC Sound Decoder about a year ago and wired with LED's and Runs Great but LED's stay with a small Glow in the Front when Running Reverse (I'm ok with that & noted that also on the Soundtraxx site unless I make changes)
The Real Problem is the SOUND - A capicator was previously installed and I hooked up a speaker that I had and NO SOUND; (I did to a Decoder reset of CV8; also noted on the Soundtraxx of CV30 to a 2) eventually I took out the capacitor and still nothing; tried it on one of my Home Speakers and the Sound Works although Very Faint.
Maybe I'm hooking up something wrong with the Speaker and Capacitor but I could not find an instruction Manual with a Diagram with this specific type.
Any Help would be GREATLY Appreciated.