I replaced two capacitors on the PCB of a black Gibson Les Paul Guitar Hero PS3 controller for a friend because it wouldn't power on or connect to the PS3. The only information I had at the start was that the guitar controller didn't light up even with fresh batteries. To diagnose the issue, I checked the battery compartment and noticed slight rusting. Initially, I thought it would be a straightforward fix: open the controller, remove the rusted contact springs, soak and clean them. However, upon opening the guitar, I discovered that two capacitors on the main board appeared to have exploded.

Realizing that these capacitors were likely the reason the controller wasn't powering on, I decided to replace them. This was my first time working with electronics and soldering, so I had to do some preliminary research. I learned how to use a soldering iron and the proper technique for desoldering through-hole capacitors through YouTube tutorials and with help from my local electronics lab. I also needed to order replacement capacitors with matching voltage ratings. The Les Paul controller uses one 10V 220µF capacitor and one 16V 47µF capacitor, which I purchased from an eBay listing: Capacitor Link

After desoldering and replacing the capacitors, I reassembled the guitar and cleaned the battery terminals as initially planned. I then inserted new batteries, and to my satisfaction, the controller powered on and connected to the PS3. What started as a simple cleaning job evolved into an educational experience in electronics and soldering. I found the process of solving this problem highly rewarding, and I plan to take on more electronics projects in the future. Seeing the controller come back to life was extremely satisfying.