JP1 Remotes

[ElizabethD]

I could use some help while dusting few things off:

#1 - This cable seems to work fine, but ...
I think some sort of a cover got lost (how??) over the years.

If the shots are too unclear, let me know, I'll try to do better.
If a cover is really missing, can I just put some silicone caulk on it to keep the wires protected?

#2 - Protocol detail - Panasonic mix combo
8910 and 7800 have a built in protocol 001F. But 6131, Atlas (3A003A00) and RCRP05B (3A793A79) have 001F:8.
What's the difference? Is it something we should know or don't care?
_________________
Liz
Tweeking 8910, HTPro/9811, C7-7800, 6131o, 6131n, AtlasOCAP-1056B01, RCA-RCRP05B and enjoying the ride

[3FG]

PID 001F is the older executor, and it uses 4 fixed bytes. It was intended for use not only with Panasonic, but with other Kaseikyo class protocols which use the same check sum scheme as Panasonic. So 2 of the 4 bytes are used for the OEM bytes (2 and 32 for Panasonic), leaving only room for 2 device numbers. This is generally called Panasonic VCR Combo.

PID 001F:8 uses 8 bytes of fixed data, so it can handle 6 device/subdevice numbers. As you know, this can be a big help in making Panasonic upgrades. It's known as Panasonic Mixed (not MIX!; that's homemade) Combo.

RM/RMIR (via protocols.ini and RDF files) knows which executor a given remote has. If you want to use the Mixed Combo in an older remote, a protocol executor will be required.

[ElizabethD]

Thanks. I was resurrecting old, old, upgrade and here a protocol was needed and there it wasn't, which is why I was snooping through the RDFs, and your answer explains perfectly.

Any idea about that parallel cable question?
_________________
Liz
Tweeking 8910, HTPro/9811, C7-7800, 6131o, 6131n, AtlasOCAP-1056B01, RCA-RCRP05B and enjoying the ride

[3FG]

That looks like a IDC (Insulation Displacement Connector) and those are designed to work with a ribbon cable. The cable in the picture has a white jacket which seems to have been cut away. Anyway, an IDC connector does normally have another piece of plastic which is intended to act as strain relief, but it would typically be used with a ribbon cable. I'm not at all sure how well that would work with your jacketed cable.

I'd use a hot glue gun, but I suppose Silicone would also work.