I was playing RB3 (XBox 360) with my RB2 wireless drums with 3-cymbal expansion pack a couple of days ago, when the yellow cymbal stopped responding. (It was intermittent for a couple of songs, and then quit working entirely.)
I've verified that the yellow cymbal works fine when I plug it into the blue jack, and I've verified that the blue cymbal doesn't work at all when I plug it into the yellow jack, which leads me to believe that something related to the yellow cymbal jack is dead.
I cracked open the drums to see if there was any obvious defect (broken solder joint or anything), but I didn't find anything. I looked as closely as I could at the mechanical connection between the plug and the jack (with the jack board removed from the kit), and couldn't see any physical difference between the yellow jack and the green and blue ones.
I'm kind of stumped - I fear that maybe it's not a repairable problem, but rather something on a board upstream of the jack that's stopped responding.
Anybody seen anything similar and been able to fix it? Are there any good "junkyard" sources for parts? (I'd like to try replacing the board containing the three cymbal ports if I could get one.)
Any help is appreciated - it looks like drum kits are hard to come by for a reasonable price anymore.