JP1 Remotes

johann83 · Joined: 03 Aug 2003 Posts: 66 Location: Pittsburgh, PA

Does anyone have any idea whether this remote can be made JP1 compatible? I know it supports learning, but I've never looked for a JP1 connection, nor opened it up to look for an EEPROM. I'm looking for a simple remote for my parents and since I have a couple of these laying around, they look like a good bet. The remote only need to control a TV because the original remote is awful (tiny buttons, no light, etc).

I might be able to use the remote without JP1, but the problem is I need it to control a relatively new Apex TV and I'm not sure if any of the built-in codes will work. So I guess a second part of my question would be if anyone knows if there is a built-in code which will work an Apex TV?

If necessary, I'd be willing to crack open the remote and add some type of connector (I've already done this with a 2103). I'm at work now, but when I get home I'll dig one out and see if it has an EEPROM etc.

Any thoughts are appreciated. Thanks.
Matt

The Robman · Posted: Mon Jan 19, 2004 8:53 am Post subject:

Go here:
http://groups.yahoo.com/group/jp1/files/Hardware/
_________________
Rob
www.hifi-remote.com
Please don't PM me with remote questions, post them in the forums so all the experts can help!

johann83 · Joined: 03 Aug 2003 Posts: 66 Location: Pittsburgh, PA

Sorry Rob, didn't see the document for the stereo interface... Since I did a 4/6-pin interface on the 2103 I have, I guess I should be able to do similar on this remote. Looks like it is time to crack that baby open.

So if I do get the interface working, I guess I'll need an RDF. I didn't see one in the current batch of RDF files, but thats probably because no one uses this remote. I didn't see one anywhere in the files area at Yahoo either, so I guess I'll need to create my own?

Is there a doc anywhere that describes how to extract the info I need from the dump? I've read through the RDFSpec in the past, but that doesn't really cover it all. At any rate, I'll wait to cross that bridge until I have a working interface.

Thanks for your help.
Matt

The Robman · Posted: Mon Jan 19, 2004 12:04 pm Post subject:

johann83 · Joined: 03 Aug 2003 Posts: 66 Location: Pittsburgh, PA

I finally got a chance to get the parts I needed to add the stereo interface to my 1993. It worked perfectly the first try and uploads/downloads successfully. IR asked me what RDF to use and I picked the 1994 one as Rob suggested. But, I am having a strange problem that I cannot explain and I was hoping someone here might have an idea.

The problem goes something like this... I wanted to test to see if the uploading works, so I changed the TV code from default to 0250 (to control my Panasonic TV) and it turns out the code didn't work. So I did a download to make sure everything looked OK. After a few more tests I decided to verify that the remote itself was actually working, so I did a 981 reset and then programmed the TV button to code 0250 manually. This worked as expected and so I know the remote works.

Now, if I compare the EEPROM image from programming the TV button manually to the one that was created when I programmed it using IR, it is identical. The strange part is that one works and one doesn't. Since what I really needed the JP1 connection for was to add an upgrade, I then decided to see if this would work, so I added an upgrade that I am using for one of my devices in my 2104.

Again, I ran into the same problem, if I would program one of the device buttons to the upgrade device using IR it would not work, but I could do it manually and it works perfectly. Again I tried to compare the EEPROM image only to find them identical. At this point, I have just decided to add the upgrade I needed and manually program all 4 device keys to point to that upgrade (this is a replacement TV remote for my parents, no need to confuse them). I haven't had a chance to test it out with their TV, but I think it should be OK.

But, being the curious type, I am really interested in why setting the device code from IR wouldn't work, while setting it manually on the remote would. Any thoughts would be appreciated. Thanks.

Matt

johnsfine · Posted: Sat Jan 31, 2004 10:51 pm Post subject:

johann83 · Joined: 03 Aug 2003 Posts: 66 Location: Pittsburgh, PA

You know, I had already thought of that, and I was certain that I had tried it. But I just tried it again now, and it works. I guess I either didn't try it, or I had done something else wrong. Thanks.

Matt

Mark Pierson · Posted: Sun Feb 01, 2004 9:56 am Post subject:

johann83 · Joined: 03 Aug 2003 Posts: 66 Location: Pittsburgh, PA