iPad - Blank Screen or distorted image

After performing a repair the device may not show an image. Try these troubleshooting steps:

1. Make sure the iPad is charged by plugging the device into a computer with iTunes open. It will show you the charge of the device. 
2. Do a hard reset by holding down the power and home button simultaneously until the iPad screen goes black or for at least 10-15 seconds.
3. Re-seat the LCD cable by first powering off the device (Step 2) and then disconnecting the battery. Reinsert the connector and retry. 
4. Check the LCD. iPad LCDs are notoriously thin and fragile, making it really easy to crack these. To check for signs of a crack hold it against a bright light. 

If you've tried these steps and the LCD is still very dim (though there might be an image) it is likely you've accidentally blown a backlight fuse. Fortunately this is an easy and economical fix, but requires you to take it to a repair shop.