talbotsteve Posted January 3, 2014 Share Posted January 3, 2014 I've recently fitted an ESU decoder to a Bachmann Prairie, it came from a working loco with no problems but since fitting to the prairie has been no end of bother. The video shows the loco at 1/3rd throttle on the controller, it stutters badly and the sound is just at idle. there are no supplementary sounds either whistle ect. At full throttle the loco just takes off but the sound stays at stationary steam sound. I have had a friend do a factory reset on the loco, 8 into cv8 but no change. These chips as we all know are expensive so I'm hoping there is an obvious fault, or it is a case of just getting it reblown. Link to post Share on other sites More sharing options...
corax67 Posted January 3, 2014 Share Posted January 3, 2014 Unfortunately I cannot view the video clip as it comes up as 'private' but I wondered whether you have hard wired the decoder or is it an 8-pin socket fitting? Link to post Share on other sites More sharing options...
talbotsteve Posted January 3, 2014 Author Share Posted January 3, 2014 Sorry I will sort the vid out but it is hard wired. Link to post Share on other sites More sharing options...
talbotsteve Posted January 3, 2014 Author Share Posted January 3, 2014 Video sorted. Link to post Share on other sites More sharing options...
Lady_Ava_Hay Posted January 3, 2014 Share Posted January 3, 2014 Who supplied the sound project and how old is the decoder? Is it V4 or V3.5? Link to post Share on other sites More sharing options...
talbotsteve Posted January 3, 2014 Author Share Posted January 3, 2014 No idea where it originated from, but it worked fine on the last loco, (also hard wired) how do I tell which version it is? Cheers Steve. Link to post Share on other sites More sharing options...
talbotsteve Posted January 3, 2014 Author Share Posted January 3, 2014 Only thing I can find is a date 14/07/10 on a round stcker. Link to post Share on other sites More sharing options...
charliepetty Posted January 4, 2014 Share Posted January 4, 2014 Only thing I can find is a date 14/07/10 on a round stcker. Probably a V3.5 Decoder with those dates! Link to post Share on other sites More sharing options...
Lady_Ava_Hay Posted January 4, 2014 Share Posted January 4, 2014 If this is an early V3.5, a reset using CV8 might have changed a lot of CV's, in particular the settings in CV29 using a speed curve and 128 steps rather than the standard 3 of Vstart, Vmid and Vtop. To resurrect without the original sound project will take many hours of work with a Lokprogrammer and may well result in some extra problems with 'loss' of sounds during performance and possible complete loss of the sound files altogether. Link to post Share on other sites More sharing options...
talbotsteve Posted January 4, 2014 Author Share Posted January 4, 2014 Great, so I guess this chip is goosed? Can it be reblown? Link to post Share on other sites More sharing options...
HLT 0109 Posted January 4, 2014 Share Posted January 4, 2014 Steve, Are you sure the loco is mechanically sound - no tight spots? Harold. Link to post Share on other sites More sharing options...
RMweb Gold pheaton Posted January 4, 2014 RMweb Gold Share Posted January 4, 2014 If this is an early V3.5, a reset using CV8 might have changed a lot of CV's, in particular the settings in CV29 using a speed curve and 128 steps rather than the standard 3 of Vstart, Vmid and Vtop. To resurrect without the original sound project will take many hours of work with a Lokprogrammer and may well result in some extra problems with 'loss' of sounds during performance and possible complete loss of the sound files altogether. Yup....can vouch for this just had to do it to one of mine....now I get lots of noise and no movement...but to answer your question Talbotsteve you will need to reblow the chip. Link to post Share on other sites More sharing options...
talbotsteve Posted January 4, 2014 Author Share Posted January 4, 2014 Ahh crap... Link to post Share on other sites More sharing options...
talbotsteve Posted January 4, 2014 Author Share Posted January 4, 2014 Steve, Are you sure the loco is mechanically sound - no tight spots? Harold. Yep the loco was perfect prior to the chip fitting. Link to post Share on other sites More sharing options...
corax67 Posted January 4, 2014 Share Posted January 4, 2014 If the sound files have corrupted then a reblow isn't too expensive - Coastal DCC, for example, charge £12 for their steam projects. Helps if I actually post a link of course: http://www.coastaldcc.co.uk/products/coastalsounds/ Link to post Share on other sites More sharing options...
steveb860 Posted January 5, 2014 Share Posted January 5, 2014 Only thing I can find is a date 14/07/10 on a round stcker. Just love the way someone disagrees with this post!!!!!!. Link to post Share on other sites More sharing options...
corax67 Posted January 5, 2014 Share Posted January 5, 2014 Just love the way someone disagrees with this post!!!!!!. I thought that too - but perhaps they have some diabolically clever way of knowing that there is no sticker or that a different date is shown on it Link to post Share on other sites More sharing options...
talbotsteve Posted January 5, 2014 Author Share Posted January 5, 2014 If the sound files have corrupted then a reblow isn't too expensive - Coastal DCC, for example, charge £12 for their steam projects. Helps if I actually post a link of course: http://www.coastaldcc.co.uk/products/coastalsounds/ Thanks for that, very helpful. Cheers Steve. Link to post Share on other sites More sharing options...
Lady_Ava_Hay Posted January 5, 2014 Share Posted January 5, 2014 Just love the way someone disagrees with this post!!!!!!. It is quite easy to linger over the buttons on each post and, under some circumstances, give a feedback 1) without knowing it and/or 2) not wanting to exercise that option but unable to correct it. It has happened to me at least twice. Link to post Share on other sites More sharing options...
RMweb Premium newbryford Posted January 5, 2014 RMweb Premium Share Posted January 5, 2014 It is quite easy to linger over the buttons on each post and, under some circumstances, give a feedback 1) without knowing it and/or 2) not wanting to exercise that option but unable to correct it. It has happened to me at least twice. Going OT slightly - the feedback can be withdrawn by clicking the "undo rating" at the bottom right corner of the post that has been rated. Incidentally, the "disagree" is by a newish member (23/12/13) to rmweb with no posts, so will possibly have done it by mistake. Cheers, Mick Link to post Share on other sites More sharing options...
murphyfp Posted January 6, 2014 Share Posted January 6, 2014 Talbsteve Back to the Loco Is there a Capacitor still across the motor connections ? Have you tried the chip back where it came from to see if it is still OK? Link to post Share on other sites More sharing options...
tractor_37260 Posted January 6, 2014 Share Posted January 6, 2014 Going OT slightly - the feedback can be withdrawn by clicking the "undo rating" at the bottom right corner of the post that has been rated. Incidentally, the "disagree" is by a newish member (23/12/13) to rmweb with no posts, so will possibly have done it by mistake. Cheers, Mick A mistake once maybe ? - but this "new member" has only made two comments so far - both of which are "disagrees" see my post 41 in this thread : http://www.rmweb.co.uk/community/index.php?/topic/79840-Hornby-announce-dcc-sound-at-%C2%A325-a-pop/page-2 Link to post Share on other sites More sharing options...
Nigelcliffe Posted January 6, 2014 Share Posted January 6, 2014 Yup....can vouch for this just had to do it to one of mine....now I get lots of noise and no movement...but to answer your question Talbotsteve you will need to reblow the chip. Ahh crap... I don't think its that bad, but depends on how much CV digging you're prepared to do. Its not supposed to be possible to actually delete sound content with CV changes, just make them inaccessible. Things which typically get "lost" are: a - sound on/off key. For many UK sound projects this is F1, but the default may now be F8. Can be moved easily. b - speed curve settings. Some guesswork required, but should be possible to make the project work acceptably with CV2,5 & 6. c - acceleration settings. Guesswork, but try about 20 as starting values for CV3 and CV4 d - chuff rates and/or slow/high speed sound factor values. And braking threshold for any automatic brake sounds. e - allocation of function keys to behaviours, such as "mute", "half speed", "yard". Probably don't need any of those to make the sounds work. f - allocation of function keys to behaviours tied to sound changes, such as "dynamic" (alters braking) and "notch up" / "notch down", "blower" and "Doppler". Again probably work without those allocated, so make sure not in use for initial work. g - allocation of sound slots to function keys. This is the bit which makes the horn on F2, or Guard's whistle on F9 (or whatever). There are potentially 16 of these, but in reality most projects use about 6 to 9. Sound slot 1 is usually the primary horn/whistle. That lot would take some time with punching numbers into a handset. Its fairly quick with JMRI/DecoderPro if you've a reasonable idea what you're doing; Ops-mode for most of it will speed things up somewhat. But, bottom line is time spent messing around to try to make it work, vs. cost of sending chip away, getting reblown with new project which shouldn't have the reset problem in future. Link to post Share on other sites More sharing options...
talbotsteve Posted January 6, 2014 Author Share Posted January 6, 2014 Talbsteve Back to the Loco Is there a Capacitor still across the motor connections ? Have you tried the chip back where it came from to see if it is still OK? A-HA got one problem sorted, thanks very much for that, loco runs fine now the capacitor has been removed, just need to sort the sound out now. Thanks very much, Steve. Link to post Share on other sites More sharing options...
murphyfp Posted January 7, 2014 Share Posted January 7, 2014 Your Welcome Pleased I have been able to help Link to post Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.