Question about Philips 60PL9200D Projection Televisions

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It works but the picture is really dark even when i up the brightness and contrast all the way is it a bulb?

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  • Philips Master
  • 3,459 Answers

You have one of two problems. Sometimes both.

Problem #1) 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.

it works but the picture is really dark even when - 578ba6c.jpg
TV set after fluid change

65af3it works but the picture is really dark even when - 2c07611.pngss=


2c07611.pngSolution #1


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.

Problem #2)

Your TV may have a convergence failure. ( common problem )

Here are some of the most common symptoms and example photos of a convergence problem



  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
Here are some of convergence problems.

645fba6.jpg
0dcec37.jpg
Here is a quick test....

Using your original remote go-to the
tv settings then goto the convergence section.

Try to adjust the it works but the picture is really dark even when - 0667c5f.pngn 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.

0667c5f.pngSolution # 2

You will need to replace the convergence chips and possibly some convergence resistors and pico fuses. Its a fairly easy DIY job or you can call in a pro. If you want to do the repair yourself check the site www.TvRepairKits.com. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, thermal paste, email/phone support, etc.

Posted on Jun 21, 2009

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Posted on Jan 02, 2017

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