DCC motor noise

Re: DCC motor noise

Postby jmass » Mon Apr 12, 2010 5:37 pm

if you do head down to the local hobby shop, bring the loco you want to be looked at and bring another for the hell of it. as happens to me when i bring tt locos to the local shop here , everyone wants to pick them up to look at them. you be surprised at the questions you get.
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Re: DCC motor noise

Postby ConducTTor » Mon Apr 12, 2010 5:57 pm

Good thinking. I'll probably head to the shop this weekend.
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Re: DCC motor noise

Postby ConducTTor » Tue Apr 13, 2010 1:53 pm

Interestingly, ESU's manual for the LokSound doesn't list CV9.........
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Re: DCC motor noise

Postby ConducTTor » Tue Jun 15, 2010 10:41 pm

CSD wrote:Hum. The only things I can recommend are adjusting CV9 and insuring that the decoder connections are isolated and not shorting on the frame or circuit board. Calling ESU may help.


Finally got the ESU programmer and after endless adjusting of PW frequency, back EMF, etc., the problem will not go away :wall: . And the programmer doesn't list cv9. Did you maybe mean cv29? Anyway, a call to ESU may be in order.
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Re: DCC motor noise

Postby AstroGoat760 » Tue Jun 15, 2010 11:37 pm

Are you able to localize the source of the noise?

Perhaps moving the decoder, assuming enough space to do so, might help, as there might be some interference with the decoder and motor.

jmass wrote:if you do head down to the local hobby shop, bring the loco you want to be looked at and bring another for the hell of it. as happens to me when i bring tt locos to the local shop here , everyone wants to pick them up to look at them. you be surprised at the questions you get.


I fully concur, then again, when I travel to most places now, a TT loco is usually either in my hand, or in a hard-shelled camera case.
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Re: DCC motor noise

Postby ConducTTor » Tue Jun 15, 2010 11:58 pm

AngrySailor302 wrote:Are you able to localize the source of the noise?


It's literally the motor itself. I'll make a vid and post it so you guys can see what I'm talking about.
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Re: DCC motor noise

Postby ConducTTor » Wed Jun 16, 2010 12:48 am

Ok, here you go. It's the electrical buzzing (you may have to turn your speakers up to hear it) - the best example starts at about 50 seconds in (I change from 28 to 128 speed steps there).

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Re: DCC motor noise

Postby AstroGoat760 » Wed Jun 16, 2010 7:47 pm

Huh.

Have you tried pulling the DCC card, and see if the motor works normally (without noise) without the DCC card?

Just an idea, trying to narrow down the fault.
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Re: DCC motor noise

Postby ConducTTor » Wed Jun 16, 2010 7:53 pm

AngrySailor302 wrote:Huh.

Have you tried pulling the DCC card, and see if the motor works normally (without noise) without the DCC card?

Just an idea, trying to narrow down the fault.


I'm pretty sure it's fine without it but will pull it out again to make double sure.
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Re: DCC motor noise

Postby CSD » Wed Jun 16, 2010 8:19 pm

I noticed on your video that there are some electronics components near to the motor. Did you remove the series resistors or parallel capacitors from the motor circuit?
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