JP1 Remotes

Digital Larry · Joined: 28 Dec 2007 Posts: 56

http://www.hifi-remote.com/forums/dload.php?action=file&file_id=5522

OK, some of them actually show as

Gap-366-1289-48? or
Gap-366-1287-48? or
Kaseikyo-84.87

Using IR.EXE 7.08 and URC-8910.

I only captured a few keys as it's clear we weren't getting anywhere.

thanks for any insight!

The Robman · Posted: Fri Apr 18, 2008 8:39 pm Post subject:

When you see the "gap" decodes, it usually means that it's a protocol that we haven't seen before, in which case we'd like to see as many samples as possible. So I would recommend learning as many buttons as you can and then re-post the file. Also, verify that each of the learns actually work before posting the file as sometimes there will be bad learns in there.
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The Robman · Posted: Fri Apr 18, 2008 9:11 pm Post subject:

Here's what I got from the posted signals...

freq: 38kHz
0 = +350 -400
1 = +350 -1400
leadin: +3600 -1800
leadout: +350 -50750

Here's the binary:
00101010 11101010 11001010 00011010 10101010 00001010 Up/CH+
00101010 11101010 11001010 00011010 00100010 11110010 CH-
00101010 11101010 11001010 00011010 10100010 01110010 Select
00101010 11101010 11001010 00011010 00001100 01001100 2
00101010 11101010 11001010 00011010 00001100 10101100 5
00101010 11101010 11001010 00011010 00001100 00011100 8

The off time for each 8th bit is about 100 us longer than the normal zero bit. Hopefully the receiver isn't sensitive enough to actually require that it be that way, because if it is it would make the code to generate the signal more complicated.

There are 2 variable bytes in this signal and I suspect that the 2nd to last byte is actually a checksum, but I'd need to see more samples in order to try and find a pattern.
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johnsfine · Posted: Sat Apr 19, 2008 10:28 am Post subject:

I don't have time to look closely, but from what was posted here I think this means some manufacturer is using Kaseikyo protocol with a different checksum rule than any I have included in DecodeIr.dll

On some signals this checksum rule happens to accidentally match the generic Kaseikyo checksum rule and gives a Kaseikyo decode. In most signals it doesn't match and gives a Gap decode.

Note the misc column in the decode (which you might need to adjust column widths to see) gives you the hex values, so manually decoding the binary shouldn't be needed.

If Rob had enough samples to deduce the checksum rules, it should be pretty easy to modify one of the existing Kaseikyo protocol executors to use a different checksum rule.

I don't think the receiver could care about that minor timing anomoly Rob mentioned. I expect it is an accident caused by careless coding of the firmware in the original remote.

The Robman · Posted: Tue Apr 29, 2008 9:22 am Post subject:

No further word from Larry on this one? I guess this is a dead thread until he returns.
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Digital Larry · Joined: 28 Dec 2007 Posts: 56

Hi guys, thanks for the support - I have updated the IR file with as many more keys as would fit into the URC 8910.

The Robman · Posted: Tue May 06, 2008 4:55 pm Post subject:

Does that mean that there are still buttons that you didn't include? If so, what you need to do is clear out the learning memory and learn the rest of them, then load a 2nd IR file (and a 3rd, etc, if needed).
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Digital Larry · Joined: 28 Dec 2007 Posts: 56

More codes here:

http://www.hifi-remote.com/forums/dload.php?action=file&file_id=5556

As defined on the URC-8910, except:

(8910 - Coship)
==============
L1 = PgUp
L2 = Audio
L3 = PgDown
L4 = Blue
Enter = Green
Sleep = Program
PIP = Red
Move = TV/Radio
Swap = Yellow
Mute = Exit
====================
That's all of them!

Thanks,

DL

The Robman · Posted: Wed May 07, 2008 4:11 pm Post subject:

Here's the variable data for all the buttons included (in case someone else has time to look at them before I do)

10100010 01110010 - Select
00001100 00001100 - 0
00001100 10001100 - 1
00001100 01001100 - 2
00001100 11001100 - 3
00001100 00101100 - 4
00001100 10101100 - 5
00001100 01101100 - 6
00001100 11101100 - 7
00001100 00011100 - 8
00001100 10011100 - 9
01011010 01110010 - Guide
10101010 00001010 - CH+ / Up
00100010 11110010 - CH- / Down
01110010 11110010 - VOL-
01011010 01010010 - VOL+
00001010 11001010 - page up
11001010 00100010 - audio
00001010 10000010 - page down
01000010 00110010 - blue
00001010 11101010 - Power
01011010 11101010 - TV/Vid
11100010 01001010 - green
00011010 00010010 - program
01001010 10100010 - red
11100010 01000010 - tv/radio
10011010 10100010 - yellow
01001010 01110010 - Prev
00011010 00011010 - Info
10110010 10100010 - Menu
10100010 00011010 - exit
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Digital Larry · Joined: 28 Dec 2007 Posts: 56

Do you think I should try to generate the code as:

Kaseikyo-84.87?

The Robman · Posted: Wed Jul 30, 2008 6:12 pm Post subject:

This signal appears to be the standard $00F8 protocol (which we normally call Sharp DVD).

Try this upgrade...
http://www.hifi-remote.com/forums/dload.php?action=file&file_id=5686

(Btw, I don't know what a CoShip 5680 is. I've put it in the cable folder on the guess that it's a STB, but please let us know what it is).
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Digital Larry · Joined: 28 Dec 2007 Posts: 56

I've just captured another one that behaves much the same way:

http://www.hifi-remote.com/forums/dload.php?action=file&file_id=5747

This is just the first batch of keys. I'll see what I could do with the Sharp DVD protocol.

Thanks,

DL

The Robman · Posted: Wed Sep 03, 2008 8:32 pm Post subject:

I'm not going to start looking at the new file until you try out the last upgrade and let us know if it works.
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Rob
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Please don't PM me with remote questions, post them in the forums so all the experts can help!