class"66" Posted June 28, 2016 Share Posted June 28, 2016 On another note, ive now bought three of the "New" large logo 47436,each one has gone "pop" soon after fitting standard 21 pin chip. Each time burning the wires and motherboard out. Link to post Share on other sites More sharing options...
34theletterbetweenB&D Posted June 28, 2016 Share Posted June 28, 2016 Best to contact your retailer for next steps advice. Personally I wouldn't have got as far as the third install: old rule 'one such event, could be chance; two events just the same, stop and fully investigate'. If I wee the dealer I woul ask two opening questions. Did these locos all run normally on DC ahead of decoder fitting, did the decoders set up normally accepting a new address on programme track? Its the track cleaner. I took it out of the circuit.. it (the class 47) stops... Assuming that the class 47 runs identically in both directions when operated by the Gaugemaster controller alone, there's an unavoidable consequent conclusion about the track cleaner and layout system. The class 47 has a DC motor in it, and will not run on an AC. Therefore the track cleaner output must either have a significant DC component, or something on the layout at least partially rectifies the track cleaner output to provide DC on the rails. If it is the first of these I would guess that the track cleaner isn't in the best of health, as these devices are typically designed to be symmetrical AC to avoid the very problem you have encountered. The second possibility, one place to look: is the track cleaner powered by an independent mains supply, or by an auxiliary output from the DC controller? Why only this loco? It may just have a very efficient motor in it that turns on a breath of current. Link to post Share on other sites More sharing options...
GordonC Posted June 28, 2016 Share Posted June 28, 2016 On another note, ive now bought three of the "New" large logo 47436,each one has gone "pop" soon after fitting standard 21 pin chip. Each time burning the wires and motherboard out. Oh dear!! That doesn't sound promising! Hope you get them sorted soon and its not widespread in that production run Link to post Share on other sites More sharing options...
RMweb Premium James Makin Posted June 29, 2016 RMweb Premium Share Posted June 29, 2016 On another note, ive now bought three of the "New" large logo 47436,each one has gone "pop" soon after fitting standard 21 pin chip. Each time burning the wires and motherboard out. That's a little bit worrying! I've got my 47436 (that faded 47467) its managed two full day's running with a Hattons 21 pin but you reckon yours went pop sooner? Watching both this thread and my own loco with interest!! 1 Link to post Share on other sites More sharing options...
blueeighties Posted June 29, 2016 Share Posted June 29, 2016 I thought those track cleaners fried dcc chips actually - I certainly don't think they're compatible with dcc Don't know if anyone has actually read the above, but electronic track cleaners are incompatible with dcc systems. Link to post Share on other sites More sharing options...
class"66" Posted June 30, 2016 Share Posted June 30, 2016 This is now the 3rd class 47436 to burn out, so wont be buying another one of this type. Link to post Share on other sites More sharing options...
45059 Posted June 30, 2016 Share Posted June 30, 2016 (edited) That's troubling to see, especially as it's your 3rd one Neil. Seeing that, (and this isn't tongue in cheek) I'm glad I'm sticking to DC and don't have to contend with those issues. Hopefully Bachmann can sort you out with a PCB that doesn't throw a hissy fit when given a chip that it was intended to receive... Edited June 30, 2016 by 45059 Link to post Share on other sites More sharing options...
rob D2 Posted June 30, 2016 Share Posted June 30, 2016 This is now the 3rd class 47436 to burn out, so wont be buying another one of this type. What sort of chip are you using Neil ? 1 Link to post Share on other sites More sharing options...
wirey33 Posted June 30, 2016 Share Posted June 30, 2016 Can anyone identify if this is a new type of board or is it the same as previous class 47 models? Link to post Share on other sites More sharing options...
GordonC Posted June 30, 2016 Share Posted June 30, 2016 That's troubling to see, especially as it's your 3rd one Neil. Seeing that, (and this isn't tongue in cheek) I'm glad I'm sticking to DC and don't have to contend with those issues. Hopefully Bachmann can sort you out with a PCB that doesn't throw a hissy fit when given a chip that it was intended to receive... Where do you stand with getting a replacement DCC chip too? If the loco was faulty as supplied and its labelled as 'DCC Ready' then I'd really expect Bachmann to either recall them, or replace any DCC chips that get fried through their faulty product. Link to post Share on other sites More sharing options...
Markmiller2008 Posted June 30, 2016 Share Posted June 30, 2016 That looks like the Chip isnt giving a gap between the PCB and is frying the wires. Ive always put some insulation tape over the PCB on my 47's to prevent that from happening.Mark 1 Link to post Share on other sites More sharing options...
class"66" Posted July 5, 2016 Share Posted July 5, 2016 Ive used just standard green Bachmann 21 pin decoder here, i always leave air gap between the decoder and pcb board to stop over heating. But the decoder has melted down onto the pcb each time. Link to post Share on other sites More sharing options...
GordonC Posted July 5, 2016 Share Posted July 5, 2016 Ive used just standard green Bachmann 21 pin decoder here, i always leave air gap between the decoder and pcb board to stop over heating. But the decoder has melted down onto the pcb each time. nothing could have short-circuited there metal to metal there could it? would a bit of electrical tape between the chip and the PCB make any difference? 1 Link to post Share on other sites More sharing options...
class"66" Posted July 6, 2016 Share Posted July 6, 2016 Ive tried electrical tape in the past,but ive had decoders go realy hot quick. Link to post Share on other sites More sharing options...
rob D2 Posted July 6, 2016 Share Posted July 6, 2016 Yeah they will, You need one of those rubber sleeve things Hornby supply Link to post Share on other sites More sharing options...
GordonC Posted July 6, 2016 Share Posted July 6, 2016 does the rubber sleeve keep the decover any cooler than tape? I'd have thought tape between the PCB and decoder would have kept it cooler than a surrounding rubber sleeve Link to post Share on other sites More sharing options...
metadyneman Posted July 8, 2016 Share Posted July 8, 2016 What decoder are you using? Could it be a problem with that particular make/model decoder. I have 9 Bachmann 47's (yes I do rather like them like them ) and they are all fitted with Bachmann 36-554's. Never had an ounce of trouble with any of them .The latest one is the new NSE liveried one "Kings Lynn" which was released at the same time as the large logo one and that too I've fitted with a '554. Link to post Share on other sites More sharing options...
RMweb Premium brushman47544 Posted July 9, 2016 RMweb Premium Share Posted July 9, 2016 Well done Bachmann. I've just bought another weathered BR blue 47001. It was new stock and has the correct underframe tanks. Presumably Bachmann has fitted replacements to those still in its warehouse. Link to post Share on other sites More sharing options...
wirey33 Posted July 9, 2016 Share Posted July 9, 2016 Well done Bachmann. I've just bought another weathered BR blue 47001. It was new stock and has the correct underframe tanks. Presumably Bachmann has fitted replacements to those still in its warehouse. Don't suppose they removed the rivets from the windscreens did they :-) Link to post Share on other sites More sharing options...
rob D2 Posted July 11, 2016 Share Posted July 11, 2016 Well done Bachmann. I've just bought another weathered BR blue 47001. It was new stock and has the correct underframe tanks. Presumably Bachmann has fitted replacements to those still in its warehouse. That's interesting, any chance of a phot when you have a chance ? Link to post Share on other sites More sharing options...
RMweb Premium brushman47544 Posted July 12, 2016 RMweb Premium Share Posted July 12, 2016 That's interesting, any chance of a phot when you have a chance ? On hols now, so won't have an opportunity until August. Hopefully someone else will be able to do so before then. Link to post Share on other sites More sharing options...
class"66" Posted July 14, 2016 Share Posted July 14, 2016 Im just using the standard Bachmann green 21 pin decoder,all my other Bachmann class 47s are fine.. cheers neil. Link to post Share on other sites More sharing options...
The Black Hat Posted July 14, 2016 Share Posted July 14, 2016 (edited) Thought I'd share this pic of 47833 Captain Peter Manisty RN that I have repainted. Quite tricky to do the non-standard livery, and have to get the extra transfers in for the correct font for some of the numbers, but worth it in the end as this engine is special to me having been at the end of a train I waved off as a young guard mascot at 9 years of age to Weardale. Edited July 14, 2016 by The Black Hat 5 Link to post Share on other sites More sharing options...
'CHARD Posted July 14, 2016 Share Posted July 14, 2016 Thought I'd share this pic of 47833 Captain Peter Mainsty RN that I have repainted. Quite tricky to do the non-standard livery, and have to get the extra transfers in for the correct font for some of the numbers, but worth it in the end as this engine is special to me having been at the end of a train I waved off as a young guard mascot at 9 years of age to Weardale. 20160604_163220.jpg Manisty, dear boy, Manisty. It's up there with Lemmy Kilminster, which as every fule kno is (was) actually Kilmister. Link to post Share on other sites More sharing options...
The Black Hat Posted July 14, 2016 Share Posted July 14, 2016 Manisty, dear boy, Manisty. It's up there with Lemmy Kilminster, which as every fule kno is (was) actually Kilmister. Typo.... Link to post Share on other sites More sharing options...
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