...are at the link below:

http://www.apevia.com/umanual/um-atxb8klw.pdf

Although I've never used this type of case, personally, the instructions aren't that bad, I've seen worse, and the basic procedures for connecting the LED display begin at about Step 25 and end at step 36.. As long as you've got all the items connected, it states: "Once powered on, the LCD shows temperature readout with backlighting". It should light up when the computer is powered on. If the backlighting is being displayed, or the temperature indication isn't being displayed, then the power isn't connected correctly, (you should be able to test for that), or the LCD lights are damaged.

Hope this helps.

Grif