R270 pinout for 3K91D Mini R52

[bonilla]

Hi,
before attempting stupid things I would like to be sure of the pinout for connecting a R52 dash (HW10 SW22) with a R270+.
984014

I understand cables 1 (blue), 7 (black), 8 (white), 19 (grey), 24 (orange), and 26 (brown) should be connected.

My guess is that:
#1 (blue) is Vdd +5V;
#7 (black) is Reset;
#8 (white) is Coax Signal;
#19 (grey) is BKGD - Clock;
#24 (orange) is Coax GND; and
#26 (brown) is GND.

Is that correct? (I am not 100% sure about 24/26)

And, where in the board should they be connected?

Many thanks!

[brend]

Mcu is security.

Standart ............
99 9% First read kill flash.
0,1% all ok.

So,.........all in oun your risk.

[bonilla]

Thanks a lot. I am (quite) prepared to that.
I read flash can be easily written back (?), so I have a hopefully-working version of both flash and eeprom.


Can you confirm #24 is coax gnd and #26 is gnd?


Any pictures of the connection pins on the board would be very appreciated!

[gwiazdamb]

Thanks a lot. I am (quite) prepared to that.
I read flash can be easily written back (?), so I have a hopefully-working version of both flash and eeprom.


Can you confirm #24 is coax gnd and #26 is gnd?


Any pictures of the connection pins on the board would be very appreciated!


This should help

[bonilla]

Thanks a lot! I'll try this configuration.
I assume when it comes to coax cable, white is signal and black ground.

[F80]

hey did you end up figuring it out how long did it take to decode the eeprom and what wires did you end up using to communicate if you could let me know it would help me a lot thank you!!