Chosen Solution
I used the wrong power adapter to my DJ controller so when I switched it on there was a pop and some crackle. I quickly turned it off but a burnt smell followed. I plugged it into my mac with a usb and it does switch on, but does not function. I have opened it and tried looking for anything that looks odd. Having not looked inside very many electronic units before the only thing I could find was what I have marked with red on the attached photos. Small “bubbles” on some of the “square things” :) (what are they called?) I read somewhere it could be the polarity protection fuse that has blown, but I have no idea what that looks like. This is a brand new unit so I feel pretty sad. Is this something I can easily fix myself - with some help from this wonderful community? Thank you.
Hi @jayesssi you mentioned it is a new set, is there any warranty??? consider sending in for service if so. do you have a multimeter with you? you might also need to check the circuit board at the back… there could be some electronics components behind too. else if you wanna fix it up and btw the chip on the first pics GL852GC USB 2.0 MTT Hub Controller http://bunniefoo.com/novena/gl852gc.pdf take more pictures of the other IC chip,
