Search found 17 matches

by xonewm
Thu Mar 30, 2023 10:28 am
Forum: JP1 - General Forum
Topic: RCA RCRB05BR (R31794) not found
Replies: 28
Views: 21355

Thanks to all

Thanks to The Robman, 3FG, mathdon, and keays for your help.
Have been out of town visiting family. Will get back to this project soon.

Willie
by xonewm
Sat Mar 25, 2023 3:30 pm
Forum: JP1 - General Forum
Topic: RCA RCRB05BR (R31794) not found
Replies: 28
Views: 21355

Moved the RXD & TXD wires back to original pins.
Executed RMIR (by mistake) and successfully down loaded the remote!
Haven't got a clue why.
Possibly the RXD wire was not making a good connection?
by xonewm
Sat Mar 25, 2023 2:19 pm
Forum: JP1 - General Forum
Topic: RCA RCRB05BR (R31794) not found
Replies: 28
Views: 21355

Will do.
Gonna take a while. TXD wire broke.
Got the wire fixed temporarily.
Now the double blink is after clear break.
Still not in serial mode.
by xonewm
Sat Mar 25, 2023 1:50 pm
Forum: JP1 - General Forum
Topic: RCA RCRB05BR (R31794) not found
Replies: 28
Views: 21355

Got new cable

Received a different cable. Came with inline 6 pin plug.
Installed 2x6 plug leaving 1 & 5 empty, same pin out as original cable. Different color code though.
RealTerm test now receiving 2 blinks on clear RTS; does not appear to be entering serial mode after break set/clear.

Not sure I specified, or ...
by xonewm
Wed Mar 15, 2023 1:46 am
Forum: JP1 - General Forum
Topic: RCA RCRB05BR (R31794) not found
Replies: 28
Views: 21355

ckeays, your drawing is the same as the end of my the cable, less the notch.
Strangely, the notch on the RCRP05BR socket is on the left.

If your drawing is viewing the back of the remote(not the end of the plug), connectors 2 & 6 are reversed, per color, from my cable.
Obviously, 2 & 4 would be ...
by xonewm
Mon Mar 13, 2023 1:59 pm
Forum: JP1 - General Forum
Topic: RCA RCRB05BR (R31794) not found
Replies: 28
Views: 21355

Thanks for the info.

There were no flashes after clear RTS.
I remember reading posts else where that the flashes did not always occur.

I have already ordered a cable linked to by Robman. It was inexpensive so I'll know more after it arrives.

I hope my current remote is okay.
Doesn't matter to me ...
by xonewm
Mon Mar 13, 2023 12:33 pm
Forum: JP1 - General Forum
Topic: RCA RCRB05BR (R31794) not found
Replies: 28
Views: 21355

6 wire vs. 4 wire

Robman, just saw your post about missing connector on 4 wire JP1.
I'll look into ordering the 6 wire cable.

Thanks.
by xonewm
Mon Mar 13, 2023 12:28 pm
Forum: JP1 - General Forum
Topic: RCA RCRB05BR (R31794) not found
Replies: 28
Views: 21355

Realterm test results

When testing with Realterm the remote was "non-functional" while RTS was green. The remote never flashed twice to indicate access. It did not appear to enter serial mode or otherwise respond to Realterm actions other than set and clear RTS.

Using an ohmmeter, I believe the JP1 pins are(looking at ...
by xonewm
Mon Mar 13, 2023 12:18 pm
Forum: JP1 - General Forum
Topic: RCA RCRB05BR (R31794) not found
Replies: 28
Views: 21355

RCCRP05BR IC info pic

Got the remote case open; pic of IC info:
http://www.hifi-remote.com/forums/dload ... e_id=26688
by xonewm
Sun Mar 12, 2023 4:58 pm
Forum: JP1 - General Forum
Topic: RCA RCRB05BR (R31794) not found
Replies: 28
Views: 21355

FTDI chip

Couldn't get a clear pic of the chip but it is branded as FTDI with FT231X label
by xonewm
Sun Mar 12, 2023 4:25 pm
Forum: JP1 - General Forum
Topic: RCA RCRB05BR (R31794) not found
Replies: 28
Views: 21355

pix of usb end

I opened the USB connector. There are only 4 wires.

picture uploaded:
http://www.hifi-remote.com/forums/dload ... e_id=26687
by xonewm
Sun Mar 12, 2023 1:55 pm
Forum: JP1 - General Forum
Topic: RCA RCRB05BR (R31794) not found
Replies: 28
Views: 21355

2 absent pins

Thanks Rob.
I will try the RealTerm you specified.

It appears there are only 4 wires in the JP1 connector of my cable.

Looking at the end it is

X O X
O O O

where X is no connector.
I'm at a loss as much of the info I found indicated 2 of the wires were not used.

I'll get back to you after I try ...
by xonewm
Sat Mar 11, 2023 9:23 pm
Forum: JP1 - General Forum
Topic: RCA RCRB05BR (R31794) not found
Replies: 28
Views: 21355

RCA RCRB05BR not found

Thanks very much.
My initial concern was I had purchased the wrong cable. I had hoped to find another user of this remote to verify I had the right cable.
Your attention is greatly appreciated.
by xonewm
Fri Mar 10, 2023 12:58 pm
Forum: JP1 - General Forum
Topic: RCA RCRB05BR (R31794) not found
Replies: 28
Views: 21355

RCA RCRP05BR not found .err log

Thanks for your help.
Here is the concatenated .err log link

http://www.hifi-remote.com/forums/dload ... e_id=26684