JP1 Remotes

[Stew]

1. Device: Kensington Ipod Dock (33164). Looks like this
2. Type of device: Ipod Dock with Remote. Remote looks similar to Ipod's click wheel, but only really has 5 buttons.
3. Year: 2006
4. JP1/UEI Remote model: URC-8910B02
5. Do you have a JP1 cable? Yes
6. Still have original remote? Yes
7. Checked the file section? Yes. Also looked for similar docks, but no joy.
8. Checked Pronto file section (at R/C)? No.
9. Partially working setup code? No.
10. Learning remote question?

Have learned the following, from ir (DecodeIR v2.31):

Up/Vol+:#=1,Protocol=NEC1,Device=51,Sub-Device=170,OBC=23,Hex=17,EFC=122
Down/Vol-:#=1,Protocol=NEC1,Device=51,Sub-Device=170,OBC=0,Hex=FF,EFC=181
Right/Ch+:#=1,Protocol=NEC1,Device=51,Sub-Device=170,OBC=4,Hex=DF,EFC=180
Left/Ch-:#=1,Protocol=NEC1,Device=51,Sub-Device=170,OBC=12,Hex=CF,EFC=052
Select/Play/Pause:#=1,Protocol=NEC1,Device=51,Sub-Device=170,OBC=8,Hex=EF,EFC=053

I have two problems:

1. The Vol+/Vol- buttons do not repeat.

2. On the Kensington remote, to power off the ipod, the Play/Pause button is held down for a couple of seconds. I can't figure out how to emulate or learn this.

I have some raw signal information captured by the remote by learning while holding the play/pause button, but it DOES NOT WORK:

Freq: 37914
+9018 -2268 +552 -130518 +9018 -2268 +7304 -89678 +9018 -2268 +9018 -2268 +7304 -89678 +9018 -2268 +7304 -89678 +9018 -2268 +7304 -89678 +9018 -2268 +7304 -89678 +9018 -2268 +552 -130518 +552 -130518

It could be partial information. Would love to get the power off function working. Looking for some assistance.


Thanks, Stew

[johnsfine]

Something is strange about these signals, so one of the experts should take a closer look.

We do not like looking at timing data pasted into a post in the forum.

We prefer to look at timing data in an .ir file opened on our own computer.

So post an .ir file into our diagnosis area and post its URL back to this thread.

Be sure that .ir file includes learns from long original presses of at least the play/pause key and a vol key.

It is also possible that the batteries in the original remote are too low to properly teach a long press (even though they're not too low to properly operate the device) so you might need new batteries to get good learns.

I expect the Vol problem and the power off problem are really the same problem. The repeat part of the signal may not match the NEC1 protocol.

[Stew]

Thanks. I was able to generate a working device file by using NEC1 protocol (device 51, sub-device 170) with the above learned EFC's. I needed to specify a parm of 28 to indicate repeatablity. Then all the buttons worked as expected.

Regards,
Stew

[The Robman]

I was going to suggest that, and I'm curious how you figured it out.

Just FYI, the "2" (in the "28" parm) means "use a device code and sub-device code" and the "8" means "use NEC2 for repeatable keys (vol+/-, ch+/-, rew, ffwd)".
_________________
Rob
www.hifi-remote.com
Please don't PM me with remote questions, post them in the forums so all the experts can help!

[Stew]

Sorry for not answering sooner, I got the information from one of your old posts.

http://www.hifi-remote.com/forums/viewtopic.php?t=169