I was given this tv because it wouldn't turn on and it was doing the lamp error with one long flash and one short flash. I haven't been able to find info on this model. Every sharp lcd guide or video I've found has steps that don't work for this tv. I finally figured out the code reset was to hold volume up and channel down. After clearing the code, it will power on but the screen will immediately go black with the power light still on. I will power cycle it a few times then it will stay on for a few minutes. After a few minutes it shuts back off and the code comes back. Obviously something is faulty, just not sure where to start.