I have a new intermountain sd40-2 and I was resetting some cvs. I tried to make it move and I get no response. The sound is there but nothing else. I tried putting cv 8 to 8 without any luck. Any ideas? Thanks.
IM’s are supposed to have Loksound Select decoders. Somebody will probably ask, may as well be me.
What DCC system are you using? Did you cycle the power off and on? What CV’s were you monkeying with?
Digitrax,cant remember which cvs
It’s always a good habit to write down the defaults and new values of any CVs you change so that you do HAVE to reset the decoder to the original settings in order to fix a decoder that isn’t responding.
CV 8=8 is the correct reset value for a Loksound decoder. As suggested, cycling the power is always a good idea after a reset to ensure the reset took.
Tom
Just found my list.as follows
cv116 to 15,cv209 to50,cv210 to 1,cv212 to 25
Can we assume this is an established working model railroad and DCC system; not brand new construction with your first engine?
Yes and this layout has been in operation 15 years.All of my other sound,dcc engines respond perfect.
It has been a while but after a successful reset and cycling the track power, after six seconds the headlight will flash a number of times. The loco should respond to address 3.
Rich
Rich,I tries 8 to 8, no change no blinking,the engine sound is on but cant control functions.
Lost/Non-Responsive Decoder – PROG → OPS → Address “00” → CV 8 = 8, CV 30 = 2 → Power Down. You should regain control under address 03
You may want to remove other locos, just to ensure they don’t get reset
I had a similar thing happen with one of mine a while back (I’m using Digitrax). Finally got JMRI up and running and did a Decoder read using Decoder Pro, turns out it had spontaneously decided it was part of a consist (In other words, I unwittingly did something stupid). Can’t remember which CV(s) handle consist info, but many on this forum know them inside and out. I corrected the errant consist CVs, and got full control back.
Definitely remove all other engines/decoders. They will be changed when programming address 00 in OP’s mode.
CVs above 255 need to have upper register Cvs 31and 32 set properly first as there are multiples of the same CV number depending on how the upper register CVs are set. If you don’t know what you are doing whe setting these upper register Cvs, hard to tell just what you set.
On the program track, write a value of 8 to CV8 and power cycle the engine. The address will be reset to the same address it was set to when you bought it -not necessarily address 3 if it was set to the engine number from the factory.
Mark.
Thanks for ideas but still no solution.[:'(]
OK, so the loco was new and you reset some CVs. Did the loco initially work "out of the box? Or, did you immediately reset those CVs before even testing the loco on the layout?
Rich
What was it that you were trying to do?
The Loksound Select manual provided on the IM site doesn’t even mention CV116 in the list of CVs?
Rich
Hmm, say wait a minute. Is this a Tsunami decoder?
If it is, try CV30=2 in OPS mode, then cycle power to the decoder by turning power to the track off and then back on.
Rich
Rich,I did test run the engine a few minutes on the layout,it worked fine,then i read on some forum to make intermountain engines run better change the cv values to the values I mentioned before then i got locked out. It seems as though I accidently locked something and nothing works. I do dread sending the unit back to intermountain for something I did.[#oops]
The enemy of good is better.
I’m not the DCC guru for sure, but it looks like current production IM’s have Loksound. You haven’t said differently. There is a locking function in decoders, Loksound doesn’t address this in the parts of the manual that I read, but CV 15 & 16 are used to do this in some decoders.
My theory is if you changed CV 16 instead of 116 you locked the decoder and won’t be able to reset it until it’s unlocked. Again, I’m not the guru, I never locked a decoder and I don’t know for sure that function is part of Loksound. You can read more about it here http://www.dccwiki.com/Decoder_Programming_Lock
I’d like to know where you got that list. I just inspected the file for the Intermountain SD40-2 and NONE of those CVs are valid numbers for that file. Changing them should have basically done nothing, but they may interact with other CVs. Since they are not valid CVs for that file, go back in and set them all to 0 and see what you get.
Mark.