RCA RCU-811 - a look in side...

field172 · Post by **field172** » Wed Jun 23, 2004 9:12 pm

I grabbed an RCU-811 and popped it open, I posted the pics here
I don't think it's a URC since I don't see a URC model #.
There's no JP1 but there is a communications link of some kind, if you check out the pics you'll see these connections:
"SIO" (serial I/O?), ENABLE (write/read enable?), OV or 0V (ground?) and +V (+5V? or Vcc?).
There's also an ATMEL 316 on the board.

This looks like a great replacement for the 810 but only if we can JP1 it. My 810 is dying and it's hard to find a replacement.

Have a look at the pics, I hope to do some testing soon.

field172.

Post by **The Robman** » Thu Jun 24, 2004 6:54 am

I can tell you for a fact that the RCU811 is not a UEI remote. This question has been raised several times, and I asked UEI directly about it.

field172 · Post by **field172** » Thu Jun 24, 2004 10:05 pm

Hey Robman,

Thanks for the reply. Looks like I'll just have to look at other options to replace my failing RCU-810. If only I had more time to try to figure out how to commuicate with the RCU-811

field172.
ps. I'm willing to help on the RCU-811 but I can't take the lead on it... any takers? Or is that beyond the scope of this forum?

Post by **The Robman** » Fri Jun 25, 2004 6:45 am

If the remote is not a UEI remote, you're going to have to do EVERYTHING from scratch. Ie, you'll need to invent a new interface, reverse engineer any data that you find, write new programs to read & write that data, new programs to format upgrades, etc. And that's all assuming the remote is even upgradeable, which I highly doubt.

field172 · Post by **field172** » Fri Jun 25, 2004 8:01 pm

ah.... right. Sounds like a lot of work. Sorry Robman, I guess it was a rhetorical question. Looks like the 811 is going back to Radio Shack.
I've got a beed on cheep 810's. I really like my 810 and how well it's 'tuned' to do everything I want. Thanks to JP1 I can easily program the new 810 I get.

This forum is very helpfull.

Thank you,
fiel172.

Post by **The Robman** » Fri Jun 25, 2004 9:09 pm

Returning the RCU811 is a good idea, especially if you know where to get some more RCU810s.

field172 · Post by **field172** » Fri Jun 25, 2004 9:20 pm

This might be another topic but have you any good ideas on repairing remote buttons? I've tried the conductive paint trick on my RCU810, it works for a while but eventually the paint flakes off and cause shorts and make the remote go nuts (this happens usually after only a few day's use). The conductive paint methog I'm referring to is where you use the automotive defrost line repair paint on the buttoms, I used "Quick Grid" made by "Permatex", available at Canadian Tire in Canada for around $10CDN.

field172.

classicsat · Post by **classicsat** » Fri Jul 16, 2004 4:52 pm

Looking at the pictures, it appears that the line is SIG, and supplies the signal for an RF transmitter module.