The code is bad light bulb, but I have already changed the bulb. It worked for two days. Now when I turn on the set it has the blinking green for about 5-7 seconds (good). Then it turns solid green (good). It stays solid green for about 25 seconds then turns off. It has code 66 which is lamp didn't turn on. If I unplug the set for awhile then plug it back in. The flashing green is there for about 10 seconds (good) then goes out (good). If I check codes at that time, it is 12 which means no faults.
What can I do to check the ballast? The lamp "looks" good, but can it be bad without being "blown"?
Same problem. Let me know if you found the problem