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Author Topic: ZTC 262 decoder  (Read 362 times)

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Offline Izzy

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Re: ZTC 262 decoder
« Reply #15 on: November 13, 2017, 11:35:45 am »
 There is a bit here on how I installed the CT in mine, might give you the odd idea.

http://www.rmweb.co.uk/community/index.php?/topic/82934-farish-jinty-2fs-dcc-jinty-update-4f-2fsdcc-conversion/

cheers,

Izzy

Offline lil chris

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Re: ZTC 262 decoder
« Reply #16 on: November 13, 2017, 04:56:50 pm »
Thanks Izzy your memory must be worse than mine you helped me when I first installed the chip when the original configuration with the L shaped chip which did not work. So I should have no problem swapping it for the ct decoder.thanks again.
Lil Chris
My layout here East Lancashire Lines
http://www.ngaugeforum.co.uk/SMFN/index.php?topic=29492.0

Offline Big bad John

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Re: ZTC 262 decoder
« Reply #17 on: November 13, 2017, 11:52:41 pm »
There is an article I wrote years ago on tuning CT decoders for 2mm scale models:
http://www.2mm.org.uk/articles/CT-decoders.htm
[/quote]

That's the guide I use for tuning my CT decoders but does anyone know of a similar guide for the Zimo 622  because every one I have fitted seems to be a little jerky and my limited knowledge means I don't know where to start with tuning these. 

Offline lil chris

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Re: ZTC 262 decoder
« Reply #18 on: November 14, 2017, 12:29:18 am »
@Big bad John,  if you use JMRI decoder pro you do not need to know the cv numbers but you can still use the guide has a refference on what to change, just bear in mind it is intended for the ct decoders so ignore the cv numbers, but the basic principle will be the same. I have been playing with my Union Mills tonight, it is a long slow process, you need to note the start/default readings and write down what you change and if it makes a difference.
« Last Edit: November 14, 2017, 12:30:20 am by lil chris, Reason: tagged »
Lil Chris
My layout here East Lancashire Lines
http://www.ngaugeforum.co.uk/SMFN/index.php?topic=29492.0

Offline Big bad John

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Re: ZTC 262 decoder
« Reply #19 on: November 14, 2017, 03:55:55 am »
Chris I use decoder Pro and have no problem setting up the CT decoders other than as you say it takes time and a pen and paper. I looked at doing the Zimo's but I'm not sure what to adjust. However I have found a thread on another forum that may be of use. First is that CV 56 is set at a default of 55 but it needs to be 155 ie add 100 for coreless motors. The other suggestion is to expirement with CV 9 which is also set to 55 default. I will have a try with adjusting these CV's but it may be some time before I can do it as my layout is in the middle of a power bus revamp. I bought the Zimo's because of the price but in future I will stick to CT decoders as the Zimo's are a tight squeeze in some locos and won't fit at all in some others whereas CT's fit most anything and I am happy tweeking the settings thanks to Nigel's guide.
Here is the link to the thread on RMWeb for anyone interested.

 http://www.rmweb.co.uk/community/index.php?/topic/78457-farish-2mt-and-zimo-mx622n-stuttering/

Offline lil chris

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Re: ZTC 262 decoder
« Reply #20 on: November 14, 2017, 10:38:30 pm »
Thanks everyone, today I replaced the ZTC decoder in my 3F Jinty with a CT DCX76z.  Thanks Digitrains for the fast delivery, I am now in the process of setting it up on Decoder Pro, eventually with Izzy's settings, thanks for those Izzy. I have also done a lot of experimenting with the settings has advised, has you know a slow process, writing everything down has I go, but I have learned a lot last night.
Lil Chris
My layout here East Lancashire Lines
http://www.ngaugeforum.co.uk/SMFN/index.php?topic=29492.0

 

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