Roomba 765 stuck - no error code - motherboard pb ?

The very latest news and updates for the iRobot Roomba robotic vacuum, the Scooba Robotic Washer and the Dirt Dog workshop sweeper. All discussion and troubleshooting questions go here.

Roomba 765 stuck - no error code - motherboard pb ?

Postby dedius » September 28th, 2018, 6:20 am

Dear all,

I have a roomba 765 which have all 4 motors stucked (main brush, side brush, L/R wheels).
When I push the clean button, I get a low-pitched bip... and that's all.

Whith the built-in diagnostic, I tried to force the motors, and of course nothing moves. However, I get a number on the display (current ?), but I do not know how to use it...
I have checked that I had about 15V in different points (included what seems to be power transistor). I also have 5V on some points.
I would like to check transistor commands, but I do not succeed to locate them...
I am equipped to test and solder electronic components, but without a schematic I am stuck (like my roomba :) ).

Any suggestion or help warmly welcome !
Regards,
Renaud
dedius
 
Posts: 1
Joined: September 28th, 2018, 6:11 am

Return to iRobot Roomba and Scooba Chat

Who is online

Users browsing this forum: BCCISProf, Fred_75, im1kissfan, jdong, johnnyh, vic7767, vinhvu and 321 guests