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DCC SOUND LOCOS NOT COASTING


Guildfordboy

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I have Clun Castle, St Paul's and Crewkerne excellent models all with DCC Sound, but they will not Coast i.e. stop chuffing on deceleration and then restart after 10secs or so. I have recently fitted a sound decoder to Woodcock A4 and it coasts as soon

 

as I decrease by a couple of steps on the controller, straight from the box without altering any settings.

Any suggestions please ?

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Guildfordboy said:

I have Clun Castle, St Paul's and Crewkerne excellent models all with DCC Sound, but they will not Coast i.e. stop chuffing on deceleration and then restart after 10secs or so. I have recently fitted a sound decoder to

Woodcock A4 and it coasts as soon as I decrease by a couple of steps on the controller, straight from the box without altering any settings.
Any suggestions please ?

Hi
Unfortunately that is the way the sound files have been written to the

ESU Loksound decoders on factory fitted sound locos. Diesels are exactly the same. The sound file playing has to finish before it can move onto the next one.

I suspect the loco you added the sound decoder to yourself was supplied by one of the main

three sound decoder suppliers in the UK. This is why its better than the factory fitted ones and ends its file almost immediately there is any change in speed.

There are two option re the factory installed sound locos..1) Is to drive the loco slower

for a few seconds allowing the sound file to end and commence a new one, or 2) Remove the decoder and send it to a specialist company who can re blow the sound files for you and then it should play better. Cost of this is £12.95 plus return postage and packaging

costs of about £5.95
Look for example at the Howes of Oxford website.
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I have several manufacturer-fitted sound locos, and have never noticed this with any of mine, if anything, a couple take so long to slow down and stop, they tend to over-run the platforms! If I thought it worth the hassle, I'd reset the deceleration prog

 

to a shorter one. It adds a bit of interest, trying to judge where to shut power off, so they stop in the right place!

Maybe Guildford's chips want re-setting the other way? Or maybe he's accidentally got shunt-mode selected, and not noticed?

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Flashbang said:

Guildfordboy said:

I have Clun Castle, St Paul's and Crewkerne excellent models all with DCC Sound, but they will not Coast i.e. stop chuffing on deceleration and then restart after 10secs or so. I have recently fitted

a sound decoder to Woodcock A4 and it coasts as soon as I decrease by a couple of steps on the controller, straight from the box without altering any settings.
Any suggestions please ?
Hi
Unfortunately that is the way the sound files have been written

to the ESU Loksound decoders on factory fitted sound locos. Diesels are exactly the same. The sound file playing has to finish before it can move onto the next one.

I suspect the loco you added the sound decoder to yourself was supplied by one of the

main three sound decoder suppliers in the UK. This is why its better than the factory fitted ones and ends its file almost immediately there is any change in speed.

There are two option re the factory installed sound locos..1) Is to drive the loco slower

for a few seconds allowing the sound file to end and commence a new one, or 2) Remove the decoder and send it to a specialist company who can re blow the sound files for you and then it should play better. Cost of this is £12.95 plus return postage and packaging

costs of about £5.95
Look for example at the Howes of Oxford website.
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high flashbang.I have a diesel with sound and after I have applied a function as per Elite

instructions sound, lights activate okay, the problem is when I try to switch them off

not only do they not respond but also the loco will not stop running

 

until I apply emergency stop. It will not then restart until it has stood for a fair period of time. Advise please.

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midway said:

high flashbang.I have a diesel with sound and after I have applied a function as per Elite
instructions sound, lights activate okay, the problem is when I try to switch them off
not only do they not respond but also the

loco will not stop running until I apply emergency stop. It will not then restart until it has stood for a fair period of time. Advise please.

Hi midway,
Several things need to be checked and corrected.
1) Clean all rail tops thoroughly.
2)

Clean the locos pick-up wheel treads thoroughly.
3) Ensure the locos rear of wheel wipers are in contact with the wheels all the time even when the wheel moves across the bogie.
4) Ensure the rear of wheel, where the wiper rubs, and the inside face

of each wiper is clean.
6) Ensure your wiring connection to the track is 100%. Ensure if used, the power clip or power track section is the Digital one not the standard analogue one. These should be Hornby part Nos. R8242 or R8241. But the best connection

to the rails is by soldering the two wires to the rails outside web area or the rails underside.

Note: When cleaning the rails use either a track rubber or a small piece of Hardboard (Masonite to those in the US) used rough side to rails.
Clean

wheel treads etc with either a powered brush and scraper set - PL40 (Google it) or use a fibre pencil.
I then use Isopropyl Alcohol (IPA) 99% type to carry out future / further maintenance cleaning. Applied to the rail tops with a lint free cloth (Old clean

Hankie is ideal) and to wheels and wipers etc with a cotton bud.
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  • 4 months later...

Sorry, digging up an old thread here. I've been playing with the cv's of my Holland Afrika Line today, the coasting, or rather lack of it being the last unsatisfactory bit.I found some advice on RM web forum which seemed to work well. The default value

 

of cv 4, the deceleration rate was 40 out of a 1- 255 range, so quite sharp. The instruction leaflet says the cv setting multiple by 0.869 ( or something like that) equals the number of seconds the loco would take to go from max speed to 0. Loksound manual

 

says it's multiplied by 0.25. The loksound manual is right, but if the Hornby number was correct then the loco would have quite a good deceleration rate and therefore reasonable coasting. Anyway,I'm babbling. I increased the value from 40 to 120. Now as long

 

as the drop in speed step is ~20 or more the loco coasts nicely. A better experience seems to be to drop the speed step number greatly then once the loco is going as fast as you want it being the speed step back up until the chuffing restarts, truly coasting

 

until you the driver puts power on again.

Just thought I'd put it out there.

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  • 1 month later...

Hi Guys,

 

I have just taken delivery of an ESU LocSound V4 decoder from Howes Models that has been pre-programmed with a new BR/GWR 4-6-0 Castle Class sound track. I have been able to install it in a Hornby "Taunton Castle" locomotive located in

 

the tender due to fact this loco has electrical connections running from the main body to the tender thereby providing the requisite power to the decoder.

 

In comparison to the Hornby factory installed Clun Castle version, the Howes decoder is far superior

 

and appears to have more realistic sounds, and one track that struck me was following the normal chuff chuff sound it is closely followed by the sound of pistons hissing, which provides a feeling of the loco coasting.

 

My current problem is that I have

 

3 other Castles into which I would like to install similar decoders from Howes, but they do not have the same electrical connections from the main body of the loco to the tender. Howes recommend placing the decoder in the tender, and the other concern is if

 

there is sufficient room to locate it in the loco body itself. If there is anyone who has overcome this problem, I would love to hear their comments.

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