JP1 Remotes

Wayne Harropson · Joined: 20 Sep 2003 Posts: 30 Location: Southern California

I tried to get a new ADVENT tv with no urc setup codes to learn the few buttons I required.(urc-7800 remote). The POWER button learned, but only turned on the TV, not off. after relearning it several times it went the other way, only off not on. So I was off to a poor start in trying to extract the codes to create and upgrade. I had given up when I thought I'd try the Code search feature of the remote. I counted up to 95 entries when the TV finally responded. It then was both turning off and on, but a display screen seemed to not want to go away, so I hit the display button and wham! The TV lost its factory programming and wouldn't respond to anything. I returned the TV to Best Buy after getting an official declaration of death by Advent technical support. I bought a similar tv made by Sanyo, and my problems are all solved.

The Robman · Posted: Fri Apr 30, 2004 7:35 am Post subject:

The symptoms you describe when you learned the power button, tell me with a reasonably high degree of certainty that the Advent uses the RC5 protocol, or something similar, which uses a toggle bit, so this symptom is totally to be expected.

As a JP1 user, tha wouldn't have mattered because IR.exe would still have been able to recognize that it was RC5 and would have given you the rest of the info you needed to program your URC-7800 to control it.

As for the code search killing the set, that is a surprise and is something I'd like to make One For All aware of. Have you re-programmed your URC-7800 since it happened? If not, could you blink back the setup code that caused the damage. Then, if you could also mention the exact model of Advent TV this happened to, that would be helpful.
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Rob
www.hifi-remote.com
Please don't PM me with remote questions, post them in the forums so all the experts can help!

Wayne Harropson · Joined: 20 Sep 2003 Posts: 30 Location: Southern California

I regret to say that I only have the last few downloads from the remote, which are named for what I was experiencing, and can send you those. I regret that I didn't take another upload of the remote once the code search had been done that killed it. The TV was an ADVENT Q2035A.

The toggle bit thing is currently above my paygrade, but I would have eventually got it had I not killed the TV first.

With your permission I will send the text files to your personal email or you can tell me how to post them here. but remember, none of the files are after the code search was done, so they won't be of much use.

The only useful info is simply the fact that I counted up to 95, and That although the TV turned on and off, the screen display seemed to remain on. Touching "display" killed it.

Thanks for your concern, Hope this is useful.
Wayne

Ps. I do remember actually seeing the set up code after the disaster, but I can only guess that it was something like 0159 or 0059, but my memory is not good.
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The Robman · Posted: Fri Apr 30, 2004 2:19 pm Post subject:

Hi Wayne,
There's no need to send me the files from before the disaster, the only one I would need to see is the one from directly after the disaster.

As for the toggle bit, it's simply a bit in the signal that switches from 1 to 0 each time the button is pressed. When such a signal is learned it's either captured in the "1" state or the "0" state, devices that use a toggle bit are programmed to expect the bit to toggle with each button press, and if the bit fails to toggle (which it would do with a learned signal) the device ignores all subsequent presses until a different button is pressed.
_________________
Rob
www.hifi-remote.com
Please don't PM me with remote questions, post them in the forums so all the experts can help!

Wayne Harropson · Joined: 20 Sep 2003 Posts: 30 Location: Southern California

If I had continued with the learning and created an upgrade, would KM and IR have automatically made the bit toggle, or was there another step? You can refer me to another post if you like.

Thanks,
Wayne

johnsfine · Posted: Fri Apr 30, 2004 6:33 pm Post subject:

The Robman · Posted: Fri Apr 30, 2004 8:05 pm Post subject:

Tbone03045 · Joined: 22 Sep 2003 Posts: 44 Location: Gardner MA

I just did the same thing to my Advent TV last night, all I did was enter setup code 0054 into my 15-1994 and started trying all of the buttons to see what was working. I believe it was one of the small buttons in the middle (mute - last - pip - display - swap - move, or maybe enter or scan.) Not sure which one exactly because there was a second or two delay before the TV freaked out.

(Here's a link to help with the TV anyway:)

http://www.freelists.org/archives/techassist/02-2004/msg01172.html

TBone

johnsfine · Posted: Wed Jun 02, 2004 9:06 am Post subject:

If I understand all this correctly, it tells us:

1) The TV uses RC5 with nearly the same command set as a typical Philips TV. But it is clearly not exactly the same command set.

2) There is a bug in the TV's firmware that destroys the TV's eeprom when it receives a certain command. Apparently that command is a standard command for a Philips TV.

3) The manufacturer charges (though not an excessive amount) for the replacement eeprom and replacement firmware (apparently firmware with the bug fixed). I get quite angry (even if the dollar amount is small as in this case) at any manufacturer that charges for a correction to their mistake.

The Robman · Posted: Wed Jun 02, 2004 9:17 am Post subject:

Hey Tbone,
Are you a JP1 user? If so, could you learn all the buttons from your original Advent TV remote and post the IR.exe file. I'd like to create an upgrade file for this TV set so that the next user doesn't need to try searching for a code and probably killing their TV.
_________________
Rob
www.hifi-remote.com
Please don't PM me with remote questions, post them in the forums so all the experts can help!

Tbone03045 · Joined: 22 Sep 2003 Posts: 44 Location: Gardner MA

Hi Rob,

I was a JP1 user a couple of years ago but didn't have any extra time to keep up for a while. I am just getting back into it now that I have some free time on my hands. I do still have my cable and it does work on the new laptop, so I'll try to get that download for ya tonight after work.

Later,
TBone

Tbone03045 · Joined: 22 Sep 2003 Posts: 44 Location: Gardner MA

Rob,

Well I posted it over on the Yahoo board but who knows where it went. I can't find it. Want me to Email it to ya or care to let me know what I did wrong with that posting???

TBone

The Robman · Posted: Wed Jun 02, 2004 10:41 pm Post subject:

Hey TBone, you've got mail! Smile

_________________
Rob
www.hifi-remote.com
Please don't PM me with remote questions, post them in the forums so all the experts can help!

The Robman · Posted: Thu Jun 03, 2004 7:23 pm Post subject:

I just created an upgrade for this TV based on the learned signals that Tom sent me, here it is: Advent_Q2035A_TV.txt
_________________
Rob
www.hifi-remote.com
Please don't PM me with remote questions, post them in the forums so all the experts can help!

Tbone03045 · Joined: 22 Sep 2003 Posts: 44 Location: Gardner MA

Cool Rob, Thanks. Just gotta wait to get the TV back from the shop now, it may take 2 - 3 weeks to get the parts in from Canada, however..... Hopefully I'll get it back and can test this out before the 3 month warranty runs out!

TBone