This video tutorial is all about fixing LG LEDTV with sound and backlight but no display. Tools Needed Multi-meter Tester- Analog or Digital Philip Screw Driver Mainboard for replacement COPYRIGHT DISCLAIMER: Copyright Disclaimer Under Section 107 of the Copyright Act 1976, allowance is made for "fair use" for purposes such as criticism, comment, news reporting, teaching, scholarship, and research. Fair use is a use permitted by copyright statute that might otherwise be infringing.