Panasonic SC-HT680

[johnsonm]

Hi out there,

This is my first post. So before I get started, I just have to say thank you everyone out there who has put in the time and effort into making this information available to us.

I have a Panasonic SC-HT680 and I have been trying to find the discretes for this. I am using the HT700 upgrade found on this site. It works for 99% of what I need. The only thing I need is to get discretes working on this. I tried using the standard Panasonic 022 & 026, but no luck. Then I started comparing the hex code in Elizabethd's excel chart to my setup in RM and found that my hex codes are reversed from hers. I assume it is because of the fact she used combo 1 instead of combo 2 used in the HT700 file in the upgrades folder. Would this be the reason I cant use the discretes listed in her excel file? Does anyone know why the Combo1 produces such a different hex than Combo2?

Any advice would be greatly appreciated.

[ElizabethD]

Greetings
Combo and Combo2 are different protocols which is why you see reversal. Combo uses less space. Bit of advice you didn't ask for: if you coded any keymoves and plan to change the protocol, you'll need to flip the bytes on the keymoves as well, so decide early

As far as the discretes go:
1. It should not matter which of the protocols you use. If your HT box has discretes, it'll work under either
2. Do try on several subdevices. On my HE100, discretes are on device 4, on others it may be on zero, or even some of these other numbers.
3. I recall some HT model that had a VCR built in, and the power for the whole system was on the VCR. Perhaps yours is similar. If you look at the INDEX sheet, it'll tell you which box it was, or just find the 144.0 sheet, or on one of the Function sheets filter for 144 and then go across to find which box. Hope this helps some.

PS HT700 is not my upgrade. In RM just switch from Panasonic Multidevice to Panasonic Combo on that file or yours, or leave it alone and just ignore the flipped bytes.

[johnsonm]

Thanks for the advice. I will try that this weekend

[ElizabethD]

I just filtered some. A bunch of the HT models have power on subdevice 28, so I'd start with that.