I have a brand new Athearn F7 (with DCC and sound).
When I try and program it on the program track it says “cannot read CV”. When I put another loco on the program track it programs just fine. I cleaned the Athearns wheels, and the sound comes on just fine, but still no read of the CV.
Anyone else have this problem?? Help??
I had that problem on a couple of locos I was programming. I think it had to do with bad contact with the programming track. But the interesting thing was, the locos programmed OK, but I couldn’t read back the value for the address. For example, if I programmed a loco with address 35, it would write OK. Then I usually do a “read” of that parameter to verify it took. I got the “cannot read” message, and just stuck the loco on the mainline, brought up loco 35, and the thing runs just fine. Cleaned the programming track, which happens to be old brass, and I could read the values back.
Just for kicks try putting a 1K ohm resistor accross the program track with the loco in place and see if it can now be read. I had the same problem with a cheap Lenz decoder and this tip solved the problem.
freddy1540
The Decoder F7 Genisis Sound Decoder doesn’t have read back functions.
On Tony’s Train exchange they mention it.
Refer to the last paragraf on the link.
http://www.tonystrains.com/technews/loconews/loud-locos.htm
I also sent a emil to Athearn and the comfirmed this.
John
Thank You
I will try the 1K resistor and programming without the read back. So I assume in the register mode I can put the long address in??