Facing TV Problems? Ask a TV Technician.
Thank you for using JustAnswer.
Air filter is located on the bottom of the light engine. This is a very odd design, must remove light engine and vacuum them very carefully as they are thin and fragile and permanently attached to the light engine. I attached pictures to give you an idea of where it is located and what it looks like.
I hope this answers your question and if you have more please feel free to ask.
Please click the green ACCEPT icon if you feel I have given a complete answer, and you can leave positive feedback. Positive feedback and bonuses are always greatly appreciated!