About a month ago I got a green tint(saturated) screen on my HLT5687SX/XXA. So I opened it up. Disconnected all 3 LEDS (they looked fine) vacuumed TV and put it back together. My TV worked for 1 month then it went back to a green tint for 2 days, red tint 1 day, perfect screen 1 day, then back to red tint for now about a week. Anyone have any suggestion.