I am currently making a custom stick using a wireless Xbox 360 and am having a few problems. I soldered and tested every button before I mounted the PCB in the controller box. I mounted the board and ran all of the wires to the buttons and the LB solder joint came off in the process. I tried soldering the wire back on but the button wouldn’t work. After a bit more testing I noticed that the controller was actually pressing LB constantly, even after I desoldered the joint. I checked all along the leads and couldnt find where it was grounded. I also noticed that the voltage on Start and Back were around 0.9 instead of 3.3 and wouldn’t work but worked fine when connected to my play and charge kit.
I guess what I’m asking is could the two problems (LB and Start/Back) be related somehow and how could detaching the one point cause all of this. Sorry for the long winded description but I have been working on this all day and am kind of frustrated. Any advice would be greatly appreciated.