Need help adding commands using hex values

[bizzorkle]

Hi All -

JP1 Beginner here. I have a Sanyo PDP-42WV1 plasma, and I would like to be able to create some custom commands for it. Because this is an industrial unit, the manual gives me discrete ASCII values for some of the more advanced features, like power on/off and direct input select. For example, it's discrete power on is "C00", which converted into hex gives "42 30 30" (the manual also says to add "0D 0A" at the end of the signal). There is also no pre-programmed code for this unit...the folks at OFA tried to help me find one, but none worked exceptionally well. So I used the OEM remote to learn the signals, but like I said, I really want to add these new commands so I can make perfect macros.

So, using KM and my trusty 9910, I proceeded to type the hex values for all the commands I was trying to add into the appropriate slots on the "Functions" tab. I then upload it and....nothing! It doesn't work. I sense I am doing something wrong. And yes, I did complete the "setup" tab first, (although the "Protocol" selector confuses me) as well as making sure my new functions were assigned to buttons.

Any tips?

[The Robman]

First things first, before you can worry about adding additional commands to an upgrade, you need to have a working upgrade to add them to.

When you learn the OEM remote into your URC-9910 and download the data, what do you see? Does IR recognize the signals? If it does, you should be able to use that info to build an upgrade. If it doesn't, you'll need our help to get to the next level.

Once you have an upgrade, you can compare the hex data for the working commands with the hex data in your manual. Chances are they won't match exactly, but if you convert each hex code to binary, you might notice a similarity. For example, one might be the complement of the other or it might be backwards, or both.

[johnsfine]

the manual gives me discrete ASCII values for some of the more advanced features, like power on/off and direct input select. For example, it's discrete power on is "C00", which converted into hex gives "42 30 30" (the manual also says to add "0D 0A" at the end of the signal).

All of that description makes sense for commands sent by RS232 (serial port from a PC to the plasma). None of it makes any sense for commands sent by IR.

Most of the rest of what I would have said, Rob already said.

But once you decode some learned signals, post some info from those decodes back to this thread. We might recognise them and know more about whether there are IR versions of any discrete commands (many such devices have only rs232 versions of such commands, not IR).

[bizzorkle]

All of that description makes sense for commands sent by RS232 (serial port from a PC to the plasma). None of it makes any sense for commands sent by IR.

I was afraid somebody would say that, as I was kinda thinking in that direction. Still, once I have a chance, I'll dig into the learned signals more and report back if I find anything interesting.

[Capn Trips]

It's not a question of finding anything interesting. It's a question of decoding a learned signal to determine the basic protocol and device(s) to which your TV responds.

THEN one can embark on (via various techniques) a Code Search for additional functions.

So I recommend you take that first step - which is NOT a time-consuming one - of learning as many of yoru OEM signals as you can and uploading the learned IR file to the diagnosis area (with a link provided here) and someone can get started helping, if you can't see anything useful in the learned signals tab.