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possible bad decoder

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  • Member since
    February 2005
  • From: Vancouver Island, BC
  • 23,330 posts
Posted by selector on Thursday, November 27, 2008 10:31 AM

No chuff at all?  That is weird, especially if your reset took and it now runs reasonably well.  In any event, the manual for that decoder is available on-line, and you can look in the table for the CV that controls chuff rate and volume. CV's 57 and 58 must be manipulated as the engine is in motion to get the chuff's synchronized if you are using speed steps to synch and not a wheel-mounted magnet and reed switch. (does your Berk have a mechanical counter?)

57 Sound mode 1 Multiplied by 0,64 is the time in seconds 0-127

between two chuff sounds at speed step 1. LokSound Steam: 20

Value 0 indicates that period between Diesel: 0

exhaust chuffs is controlled by a wheel sensor LokSoundXL Steam: 50

Diesel: 0

58 Sound mode 2 Value defines the gradual decrease of 0-127

intervals of exhaust chuffs with increasing LokSound Steam: 115

speed. A higher value indicates a more rapid Diesel: 0

decrease, a lower value a slower decrease. Electric:: 0

If exhaust chuffs are triggered by a wheel LokSoundXL Steam: 95

sensor (if CV 57 = 0), this value specifies the

number of trigger pulses required for one

exhaust chuff.

59 Sound Divided by 32 this will yield the factor

  • Member since
    September 2008
  • From: Marblehead, Ohio by the shores of Lake Erie
  • 50 posts
Posted by bwchaney on Thursday, November 27, 2008 9:54 AM

further update i did manage to hook a dc test track but the binding theory played on me.  Yesterday i cleaned the track with goo be gone and noticed a residue on all the drive rods.  I wiped them off and now the engine runs in dcc.  I now only have one problem the engine will not chuff.  Any ideas on loksound programming to get my chuff back.  thanks bwchaney

  • Member since
    September 2008
  • From: Marblehead, Ohio by the shores of Lake Erie
  • 50 posts
Posted by bwchaney on Thursday, November 27, 2008 9:14 AM

I successfully reset to engine number three.  It still has sound but will not move; and it is still a constant hum.  the engine should not be bound as it worked the day before.  Is it possible to blow the motor part of the decoder and not the sound?  I do not have a dc test track to use.  thanks Brian Chanry

  • Member since
    January 2002
  • From: Redwood Falls MN
  • 90 posts
Posted by draftingplans on Thursday, November 27, 2008 8:40 AM

I would wonder if maybe you missed something trying to enter the 4 digit address.

I would reset the decoder on a programing track to the default address and see if it works on address 3.

If all works on address 3 maybe try and reprogram after that.

Barry

  • Member since
    September 2008
  • From: Marblehead, Ohio by the shores of Lake Erie
  • 50 posts
possible bad decoder
Posted by bwchaney on Thursday, November 27, 2008 8:07 AM

I have a p2k 2-8-4 berkshire with a loksound decoder in it.  I was working on a 4 digit address yesterday and i thought everything went well.  I used my digitrax 400 throttle for all operations.  when i went to start the engine i had sound but a low hum also and the engine would not move.  Did i kill the motor part of the decoder or fry the motor?  It is my favorite engine so i would like to diagnose my problem.  All help by you folks would be appreciated.  Thanks in advance brian chaney

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