JP1 Remotes

I've been given a URC8820 and - despite dreadful soldering ability - have built a JP1.2 PC serial interface. My astonishment and delight at being able to do some upgrades easily (I'm not astonished that the interface's design works but that my soldering is sound) has been tempered with disappointment regarding the following:

1] Upgrade for my DVD recorder Philips DVDR70 created with RM v1.78 works fine on my old URC8910 but doesn't activate any function on the target device when loaded into the 8820 (yes, I've changed the remote type etc. for the new remote). Protocol RC-6, Device 48. IR file containing signals learned (by my old URC7562) from 8820 here.

2] I have a device (terrestrial digital receiver, Echostar T-101FTA) using the Streamzap protocol, Device 34. The 8820 learns it well but RM won't let me create an upgrade as it states that the 8820 doesn't support this protocol.

I know, from multiple random learns, that the 8820 has RC-6 built-in (SAT/0099 and SAT 1076 are RC6, Dev 39; CAB/0317 is RC6, Dev 45). I haven't found Streamzap but wonder why it can't be copied over as a new protocol. Any help appreciated.

I believe the [Protocols] section of your 8820 RDF should be 0058:2. Built-in VCR/DVD/0646 on the 6820/8820/10820 is RC-6 Dev=48 as well.

Thanks for that. Will try a bit of cut-and-paste with RDF tonight (UK time).

As an aside, I learned samples of several in-built 8820 codes to my 7562 and am finding a fair few that IR doesn't recognise. These were random setup codes, mind you, and not from the manual. I didn't save the IR files of these, however, just noted down the fact that I didn't know what they were and their frequencies.

Streamzap can stay as learned signals for present although I do remember that the device also has some functions that respond to a similar protocol so I'll hunt for that too.

I took the StreamZap PB file from here and changed the processor to HCS08 and it generated this: Try it out and let me know if it works.

Well thankee, Binky. I modified the RDF, whereupon all the functions in RM changed to OBC 0* but pasted in the correct OBCs and have the DVD recorder working. How fortuitous of you to stumble upon VCR/DVD 0646 (I can't find it in my user manual but it is obviously a Philips code).

I'll give the StreamZap protocol a stab next but have to work out how to let RM let me specify it for the 8820. The other protocol that was similar and had some limited effect on the target device was RC5, (?Dev 17) and I note that the numbers look like they'll be the first 5 bits of the Streamzap code so I'll try reversing the process from StreamZap OBCs to binary, to 5-bit OBCs and do the appropriate fiddling in RM (OBC <63, OBC>63 etc.)..


*Edit
Actually, it was changing remote type in RM that reset all the OBCs to 0.

To add this upgrade protocol to RM, open up the Protocols.ini file in the RemoteMaster folder and add to the [Streamzap] section This will then allow the Streamzap protocol to appear when you select an HCS08 remote(URC-8820).

Thanks. I changed my 8820 RDF to include 0123 as a protocol and RM let me go ahead with Streamzap but the upgrade didn't work. I'll do it the proper way now that you have pointed me in the right direction.

The other code that partially worked the device was, indeed, RC5 Dev17 but only some of the OBCs generate a response.

Meantime I've been messing around with too may parameters at once and my Panny TV upgrade now has the buttons all over the place but the remote reset OK and I'll get on with trying the changes one at a time now.

RC5 is kinda topical today as I bought a cheap DVB-T (Onn OSTB-01,
UK Freeview box, from ASDA) and it is RC5 Dev8. Suspect it will be popular in the UK so will upload upgrade for it when I get the chance. I'll be using my old 7562, though, until I iron out the 8820.