Good first experiment for me - help me program a code

[checksplay]

I bought an OFA 9910 (best thing ever) and now have a JP1 cable for it and can successfully communicate with it using ir.exe.

My system is:

Panasonic plasma (TH-42PX50U)
Panasonic DVD (S47)
DirecTV box (D10)
NAD Preamp/tuner (1600)
NAD AMP (2700)
NAD CD player (5100)

The NAD stuff is old, but still works great.

My specific problem is that I can't find the code for TUNE- on the stereo. The TUNE+ works fine. I tried manually programming every code between 0 and 256, but none of them worked. I have the original remote and tried the learning function, but it did not work either. It took many attempts to get 'successful', and then the function didn't work. I have yet to successfully learn a function from any of the NAD remotes. Learn works fine for the other components.

So, is there someway I could use a modified TUNE+ code in ir.exe? What do you guys suggest? It's not that I absolutely need the TUNE- function, but I figure it will be a good learning experience. I'll have many more questions in the future. Thanks in advance for any help.

jd

[whompus]

Did you put new bateries in the nad remote? If they are old they may not be sending strong enough signal for learning.

[The Robman]

NAD uses the NEC1 protocol, which is the most common of all protocols, so the 9910 should have no problem learning the signals what so ever, so I would agree with the Whompster, check the batteries in the NAD remote.

[checksplay]

Thanks for the tip - will try! I must admit, the batteries are quite old.

[checksplay]

Well, a couple of sets of fresh batteries later and still no luck. Only difference is that now I can reliably get 'success' on the first attempt. Though it still takes several seconds, longer than learning on my other remotes.

Any other ideas? Thanks.

jd

[whompus]

Upload the ir file with the buttons learned from the nad remote here in diagnosis area for someone to take a look at it. Remember to make notes as to what the functions are. Also remember to learn several buttons not just the one that is not functioning.

[checksplay]

Hi,

I placed my IR file in the diagnosis area,

https://www.hifi-remote.com/forums/dload ... le_id=2685

The title is "OFA 9910 to control NAD 1600"

For the RCVR, the only learned command is TUNE- (and it doesn't work). All the other commands came from OFA support when they downloaded code 0320 to my remote over the phone.

I've tried learning other buttons for the RCVR, but none of them worked. TUNE- is really the only one I am missing. Thanks for any help. David.

[Capn Trips]

Well, your RCVR:0320 upgrade reverse-engineers to THIS KM upgrade, using NEC1 protocol, device 135, subdevice 124. This is pretty similar to THIS upgrade, as well. There is an advanced code list for this setup code HERE. The first (reverse-engineered) upgrade linked here has been supplemented with codes and function names from the latter two, so it is more "robust" than the UEI-provided upgrade.

Most of the EFCs match, including the channel up and channel down ones, so I have no logical explanation for your unusual "tuner down" behaviour. Do all of the other functions in the 0320 upgrade you downloaded over the phone work? And am I correct in understanding that NONE of the NAD functions work when they are learned? That is indeed, quite funky.

I suggest (as whompus did above) that you learn a few MORE functions, so that when an expert looks at the IR file, he can compare the learned functions that, although they don't work, correspond to WORKING upgraded function EFCs to that one that doesn't work correctly.

As far as the upgrade UEI provided you with, you have a few functions assigned (several of the numeric keys and all of the transport keys) that are not on that list (I presume most of the numeric buttons have some sort of input select function - is that correct?). Also there are functions on the list that don't agree with your upgrade. Glaring is the reversal of vol + and vol -, and of course, hard to understand if ch+ works, but ch- doesn't. You might want to try the "tuner up" and "tuner down" functions from my kluged upgrade to see if they might work, but the mystery of your decoding problems remains.

It would be helpful if you filled in the correct function names in the KM upgrade and uploaded it to the file section.

[johnsfine]

For the RCVR, the only learned command is TUNE- (and it doesn't work). All the other commands came from OFA support when they downloaded code 0320 to my remote over the phone.

My best guess is that you pressed the TUNE- button on the original remote before the 8910 started to learn.

If you want to find out the right EFC number for TUNE-, try learning it again.

I forget the exact sequence of steps for learning in an 8910, but at some point there is a step which actually starts the 8910 learning, after which you should press the key on the original remote. Try waiting about a second after that step on the 8910 before you press the TUNE- key. (If you wait 8 seconds, I think that is too long and the learn would fail. But it is definitely safe to wait 1 second).

My second best guess is that you jerked one of the remotes at the moment you pressed the TUNE- key.

Learn with both remotes on a table (or other hard level surface). The 8910 should be in a stable position after the last press mentioned above so you don't need to hold it at all. Hold the original remote still with one hand and gently press TUNE- with the other so neither remote is moving at the moment you press TUNE-

[ElizabethD]

I forget the exact sequence of steps for learning in an 8910, but at some point there is a step which actually starts the 8910 learning, after which you should press the key on the original remote. Try waiting about a second after that step on the 8910 before you press the TUNE- key. (If you wait 8 seconds, I think that is too long and the learn would fail. But it is definitely safe to wait 1 second).

John, you're right.
Details: The start step is when after pressing SET and down arrow, 8910 says IR LEARNING, at which point you tap the destination button on the 8910. Then press and hold the OEM button. The final step is when 8910 says "SUCCESS". That's when I release to OEM button. If it said "ERROR", try again, or eventually give up. It may also say "MEMORY FULL". Quite unambigous UI, isn't it?

[johnsfine]

The start step is when after pressing SET and down arrow, 8910 says IR LEARNING, at which point you tap the destination button on the 8910.

At this point pause for a second if I'm right about what what wrong in the posted learned signal

Then press and hold the OEM button.

[checksplay]

I posted a new ir file in the diagnosis area with two additional learned keys (TUNE+ and Preset 1). Neither of the two new functions actually work. And I noticed that the raw signal for TUNE- is different after I re-learned it.

https://www.hifi-remote.com/forums/dload ... le_id=2689

Sorry about the title, I meant to distinguish it by calling it "second try" or something, but forgot. Turns out, the only difference between the first and second listing in the diagnosis area is a space between 'OFA' and '9910'. The link above is for the new file.

I tried yet another set of new batteries and followed the suggestions of the other posters about waiting and keeping the remotes flat on a table with no luck. I think there is a real problem in trying to learn from this remote since the raw data in ir.exe is different between attempt and even have different lengths. I wonder if it is because the frequency is almost 40kHz. I think I read the OFA only works up to 40kHz, so maybe that's the problem.

[ElizabethD]

At this point pause for a second if I'm right about what what wrong in the posted learned signal

Thanks John. Good pointer not to lose the start. I just timed it. It looks to me like about a 5 seconds window and if you don't push the OEM button it'll say ERROR and wait for the next try.

[johnsfine]

I posted a new ir file in the diagnosis area with two additional learned keys (TUNE+ and Preset 1). Neither of the two new functions actually work. And I noticed that the raw signal for TUNE- is different after I re-learned it.

It is perfectly normal for learned signals to change each time you learn them. But these three learned signals are totally bad. They aren't distorted versions of the correct signal. They don't contain any contribution at all from the important part of the correct signal.

The third one is a clean learn of the end of the stuff the original remote sends AFTER the main signal. You say you followed the suggestion about waiting, but I don't see how you could have in that case. The 8910 obviously started learning after the original remote finished sending the main signal (the main signal takes less than a tenth of a second, sent at the moment you press the original remote button).

Your learned TV and SAT signals have continuous repeat of the important part, so they would learn correctly even if you used a learning method that wouldn't work for your RCVR (so don't conclude that your learning method is correct based on success with those other devices).

I think there is a real problem in trying to learn from this remote

Sometimes learning can be picky about the distance between the two remotes. Usually one or two inches apart is best, but if that's what you have been using try nearly in contact and try 4 to 6 inches apart.

I wonder if it is because the frequency is almost 40kHz. I think I read the OFA only works up to 40kHz, so maybe that's the problem.

The OFA learning works far beyond 40Khz. I don't know the exact upper limit, probably somewhere in the 200 to 400Khz range. I've learned a lot of 58Khz signals with no hint of problems.

[checksplay]

I've been keeping the button on the original remote pressed continuously while learning. Should I just tap it instead?