Phillips Model # 60P8341A projection tv colors are faded and not vibrant. TV turns on and off by itself.

depends what source you use. if it is a hdtv source you might have defect cables or worse/wrong connection. if you use the built in tuner for tv channels might antenna signal has problem or even connector too. check different video (picture) sources like the antenna in, video in, y/c (chroma) in etc to clarify it is not the tv itself. if this can be excluded then the tv has a problem, please let it then check by your local service.
regards

This sounds like the coolant fluid needs to be changed - the coolant turns milky after awhile and you'll get a dull image.
Google TV repair world . com and look for philips/magnavox coolant replacement:
PHILLIPS CRT Coolant Replacement Kit This is the complete coolant kit for Phillips CRT rear projection televisions. Kit contains 48oz of top quality High purity optical grade coolant with complete detailed instructions produced in clear easy to understand terms with detailed photos and illustrations that takes you through the process step by step safely dischargeing the CRTs and eliminating the need for complete realigning proceedures.Restores the vibrant colors and focus issues commonly associated with coolant that needs replacement

There are two common problems with Projection TV sets. Problem #1) Convergence Symptoms:

• Screen Looks 3D
• Colors wont align
• Video may look distorted

Problem #2 CRT Fluid has clouded over. Symtoms

• Dull looking video
• White looking video
• Halos around objects
• Red/Orange looking video

You can see some examples and find a fix here...

SOLUTION http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Likely the picture tubes are getting weak from old age. Not much you can do about this.

I have the same Tv.. Repair tech said it was the deflection board. Cost $395.00 to repair.

Sounds like a convergence problem. Do you know how to solder and use a meter? If so you might be able to repair this yourself for uner $100. Otherwise you will need to call a repairman and he will run you somehwere between $300-$500. Let me know and i can help!

Tim Nolan

Common problem with the model. Check the site www.TvRepairKits.com. They have a fix for the shrinking and expanding screen problem. 

I had the same problem, I had a repair man to come out n he told me what the problem wasn that it will cost around $300.00. So i took it apon myself n removed the keyboard behind where the power buttons are. I waited 10 minutes and replaced it then I had no problems for3 years. Now that its started back up i need to replace it, but they don't sale the part n e more. But I found a substitue part on Sears direct parts n the part number is RFR-PTS-28 they look different but work the same. Right now the price is $28.00.

time for a new tv

Replace the CRT fluid. It grows algea in the blue and green only. 9.99 from MCM electronics.