To dissemble the TV start by removing the back cover. Then remove the metal cover in the foreground of the next picture it covers the LCD Connectors.
Then there are several catches that will need to be unhooked.
The screen lifts out, being careful about the ribbon cables that are still connected to it. Then there are four metal strips that hold the back-light filters in place. There is a solid plastic filter and three flexible filters that will fall out if you are not careful. Be careful to keep them in the right order but set them somewhere out of the way.
Now to remove and test the LED strips. They can be carefully pealed up with a flat blade screwdriver. I used my fingernails to get underneath them to start the process. Each strip has 4 or 5 three volt LED's (12 to 15 volts). You can use two old 9 volt batteries to test them. There should be a 100 ohm resistor in series with the batteries. The end strips are tested by applying power to the test points near the connector. The middle strips are tested the same way but you will need to short out the opposite end connector.