I am testing different codes on my TV to try to find some discrete codes.

When I transmit them the light on the TV does not flash like it does when I transmit a learnt code.

Is this normal or am I entering the codes wrong?

How do we know whether you're entering the codes wrong?

Maybe you should give enough info about what you're doing that someone would have a chance of helping you.

Most devices don't even have a light that indicates IR receive. For those that do, there is no standard rule for when the light will flash (any IR, right protocol and device code, only accepted commands, or many other possible rules).

Well we don't but if I learn a code then the TV LCD light flashes. If I change the code slightly then the TV light does not flash. My question really was does the TV look at the code and only flash the LCD if it is a functionable code, or should the LCD flash as it is receiving whether it is functionable or not. (Obviously I am not altering the header of the code)


What I am trying to do is find some discrete codes that work on my LCD TV. I have used MakeHex to produce the .hex file and converted it to a ccf and imported it into my RU950. However as I test out these codes the TV LCD is not flashing.


But this I suppose answers the question.

Thankyou for the help

I assume you generated a full set of commands with MakeHex, including commands that you already have by learning and additional commands that you hope will include discretes.

The MakeHex version of the commands you already have from learning ought to work at least as well as the original learned commands. If they don't, then you did something wrong in the process of generating or importing them.

You can decode some learned commands (with DecodeCCF or the JP1 version of IrTool) to find the exact protocol, device and function number. So you can know exactly which MakeHex command corresponds to that learned command.

Cheers for that - I will get on to it asap.

I have generated codes 0-255 in makehex but I was not sure how to get it to generate exactly the right codes. (I was rather hoping for help in response to my post in "Panasonic LCD screens" on this). So what I did was use Notepad to replace all the numbers that I knew were wrong. i.e. 0040 into 0041 .

I have spent some time trying to work out how to configure the .irp file, but if you could help me out with the .irp file as per the thread above then I would be very gratefull.

I didn't realize this thread was about Panasonic. Panasonic uses ultiple subdevice numbers for a single real device, so you would need more than one set of 256 codes to really search, and you need to make sure the subdevice number is right when testing the corresponding codes, as described above.

Also lots of people have done the full search already, so you're more likely to find your answer with a forum search than by redoing all the work.


Waste of time. The 0040 and 0041 are equally correct. Those numbers are approximate durations. There is no way to learn or reproduce the exact duration of each pulse of the original remote. The TV won't care about duration differences even much larger than 0040 vs. 0041.


All you need to change in the .irp file is the device line.

1) Its time again to post my list of URLs for the up-to-date versions of the basic tools to be used in this kind of task:

DecodeIr.dll, need by both the JP1 IrTool and DecodeCCF
[Link: john.fine.home.comcast.net]

The JP1 IrTool for decoding Pronto Hex strings one at a time:
[Link: remotecentral.com]

DecodeCCF.exe for decoding all the Pronto Hex in a CCF file
[Link: john.fine.home.comcast.net]

MakeHex for regenerating a clean set of Pronto Hex
[Link: john.fine.home.comcast.net]

IrPanels.exe for translating MakeHex output into a CCF file with 256 buttons
[Link: remotecentral.com]

2) Using the above DecodeIr and IrTools, I translated the Pronto Hex you posted in one of your other threads:
Panasonic:128:61
and
Panasonic:128.2:48
And from another of your threads
Panasonic:128:57

So what you are saying that for each possible subdevice I would have to test all 256 codes - correct?

What is the max number for a subdevice? (please don't say 255 - ouch!)