JVC JLE55SP4000B Main Board 3655-0682-0150(2B)

In this video we will be looking at how to troubleshoot the common symptom of No Picture on your TV screen in LED and LCD TVs. We will be using the flashlight test to help with the troubleshooting while determining the problem. This flashlight test will show how to identify if you have any video appearing on the screen and whether or not you have backlights. Within this test, we will show how to determine if the problem is a bad t-con board, bad main board or bad backlight inverters for LCD TVs or LED driver for LED TVs. Most LCD TVs are made up of a main board, a t-con board, power supply board and backlight inverters. Some TVs have one backlight inverter, some TVs have two backlight inverters and some have the backlight inverter built into the power supply board. Most LED TVs will have a t-con board, a power supply board, a main board and an LED Driver board. Some LED TV