This mixers Display screen at the top does not light up, but the mixer channel number display at the bottom comes on and changes numbers. Also the light on the mixer main sound crossfader shows power is getting to system when on. I honestly think this would be an easy fix and at the least this seems like it can be parted out for a lot of parts.. *** ALL SALES ARE FINAL*** Introducing the Pyle Pro PMXU43BT 4-Channel Bluetooth Audio Mixer, perfect for music enthusiasts and professionals alike. This mixer features 2 mic inputs, 1 phono input, and 2 line inputs, along with USB and XLR ports for versatile connectivity. With 16 buses, it is suitable for various applications such as front of house, studio recording, stage/live sound, home recording, and recording & live sound. This console/tabletop mixer boasts wireless Bluetooth connectivity, phantom power, and built-in effects. It is also MP3/CD player compatible, making it an ideal choice for DJs. The Pyle Pro PMXU43BT is compact and lightweight, with dimensions of 9.3in x 7.5in x 2.6in and a weight of only 4lbs. Get your hands on this top-of-the-line audio mixer to take your music to the next level! Thank you for your interest and please feel free to ask any questions! *** ALL SALES ARE FINAL***