How to Clean and Repair Projection TV
If you have a projection TV and the picture quality seems so washed out, you might need to do little cleaning up. Don’t panic because it is better then dumping the $2000 TV and buying a new $2000 TV. I had a same issue where my picture quality was bad. I was going to dump the TV anyway, so I disassembled the TV knowing that there are projection bulbs inside the set. I decided just to take a look at them to see if they were dirty or damaged. What I found was a thick layer of dust all over them. After cleaning them carefully, I assembled the TV back again and the picture looks as crisp as ever! It saved me a bulk just doing simple repair that might cost over $400 at my local Radio Shack store.
Here are the directions if you are willing to do it. Don’t move any part of the projector assembly. Contact a technician if you spot any leaking cooling gel around the projector tubes. Do this at your own risk because I do not take any responsibility if anything goes wrong! I take no responsibility at all!
- FIRST UNPLUG THE SET! So, just because the set is unplugged doesn’t mean you can’t get shocked. Certain parts of the chassis can carry a residual charge that will injure you, by that I mean send you flying.
- Gently remove the screws from the back cover of the TV set.
Check to see if you have removed the screws around the connection area because the area will be connected to some sort of board inside. By connection area, I mean:
- Now, you should have the back cover removed by now. If you still can’t get it removed, look for other ways. I am sure there many ways and different T.V sets have different ways of removing back cover.
- When you remove the cover, most TV will have a mirror attached to the back cover you removed and you will also see the 3 “guns” red/blue and green.
- To make sure you don’t damage your own TV, you will need a safe cleaning tool. You can probably use camera lens cleaner. You can find them at a local camera store.
- Use the lens cleaner carefully to clean the mirror and lenses inside the TV.
- For other sets, like Pioneer, you will want to enter from the front. You can do this by removing the screen first – this will give you a chance to clean the front too.
This should take about one hour if you are careful enough. Don’t use ammonia based cleaners on any plastic components, lens or mirror either. The ammonia can cause the plastic to cloud. To further educate yourself, visits the Web sites listed below.
How Projection Television Works
Precision Image Calibration – Optics
Exodus Tech Tips – TV Info
Rear-Projection Television – What You Need To Know – Lens, Mirror, Screen, Box
How to Buy a Rear-Projection TV
Feel free to suggest new sites!