It will only stay on between 5 to 10 minutes and shuts off automatically.
It will sometimes turn back on right away and sometimes you have to wait a while.
SOURCE: Philips Magnavox 55P8288 Entire picture has green
Your TV most likely has one or more possible problems.
Problem #1: Convergence Chip Failure ( common problem )
Here are some of the most common symptoms and example photos of a convergence problem
Here is a quick test....
Using your original remote go-to the tv settings then goto the convergence section.
Try to adjust the red and then the blue convergence.
You should be able to move them up, down, left, and right.
If you can't move them in all directions your convergence chips are bad and should be replaced. This is a common problem.
Solution #1
You need to replace the convergence chips and convergence resistors. Check the site www.TvRepairKits.com. They have put together a kits for most models. If you don't see a kit for your set send them a quick note and they will put one together for you. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, etc.
Problem #2 CRT Fluid is Cloudy
Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.
Picture of a set that needs the fluid changed.
TV set after fluid change
Solution #2
What you will need to do is replace the coolant and clean the crt. You can get a repair kit from www.TvRepairKits.com that includes replacement coolant, photos. instructions, etc.
SOURCE: my phillips magnavox big screen tv model number
Check the audio setting to make sure the internal speakers aren't turned off. Check to see if it's set to use external speakers. If it is setup to run sound through an av receiver check all connections, make sure the receiver is on the correct input setting, and speaker wires.
SOURCE: i have a hitachi big screen model 50ux22b after
Replace Both of your STK ICs they are big black IC example STK392-110s if 110s use 150s Call Mats For Parts 1-800-628-1118
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