Question about Philips 9P5044C 50 in. Rear Projection Television

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Projection tv my tv is going dark,the brightness level is all the way up.could it be the lamp needs that something I can do myself.any help would be appreciated.

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Re: projection tv

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

  • 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 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.

2c07611.pngSolution #1

You need to replace the convergence chips and convergence resistors. Check the site 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


2c07611.pngSolution #2

What you will need to do is replace the coolant and clean the crt. You can get a repair kit from that includes replacement coolant, photos. instructions, etc.

Posted on May 07, 2009

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Re: projection tv

I have a phillips 50" projector Tv Model #9P5040 C102 the picture went out. How can I fix it.

Posted on Sep 16, 2008

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Re: projection tv

Without knowing the model and from the content of the post, then, I will respond as if it is a rear projection LCD or DLP. A dim picture is almost always an indication of a lamp going out. The average life of a lamp is normally 3500 to 4000 hours of normal viewing. Usually 2 years. I have changed bulbs that had kept on working to 12,000 hours (about 4 years). The life of a lamp can be decreased by improper use, such as: Turning off the set and turning it back on immediatly (A common practice I have found when my customers have a procedure when turning a set along with periphals, like a cable box). Consistent power outages also shorten the life span of a lamp. 5 minute battery back up, so the set can shut down properly would help longegevity. Changing a lamp in most sets is definitly made for a customer to do themselves without a servicer, depending on the set. When buying a lamp, spend the extra money and buy a MFG origional part. Although, some lamp dealers say they are origional, they are a cheap knockoff and don't last but only a fraction of the time. If you have any questions, reply to this post and I will respond.

Posted on Sep 23, 2007

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My tv's screem is little dark

If you set the lamp mode to LOW POWER, each time you turn ON the TV the lamp will start out at HIGH BRIGHT mode, but will switch to Low Power mode after a short period of time. You may notice a change in screen brightness when this happens. This is not a malfunction.
Just check whether you have selected this mode. Go to its user manual [P57]. All details are there about the lamp brightness settings. If it is not set to Low Power and still you get a dim picture, the lamp may be weak and has to be repaced. OK.

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Its time to replace lamp in tv.
DLP lamp has limited life span like 3000 working hours and after that it need to be replaced to get bright picture in tv.
Lamp replacement is easy and procedure would be written in user manual.

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Dark picture is indication that tv needs new lamp.
Replace lamp in tv get bright picture, please buy Sony original lamp for good picture in tv.

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Sony KDFE60a20 picture is not bright. We are losing sight of the picture due to it being so dark. Is this the lamp assembly or could it also be something else. TV is 5 years old.

It is lamp that need to be replaced.
Lamp is not generating enough light to present bright picture on tv screen.
Lamp replacement is easy and written in user manual of tv.
Please buy Sony original lamp for good picture result in tv.
Let me know if you have additional question.

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Ihave a Philips 50PL9126D tv and I just replaced the lamp because the picture was very dark. I can see the picture but it is still somewhat dark, bright in the middle,dark at the edges. I tried to adjust...

Sounds like you may have the wrong lamp. Make sure you purchased a Philips lamp that's 100% compatible with your television model. Philips pioneered that lamp, so naturally they make 100 different types for DLPs and LCD projections.

You may have an elliptical lamp instead of parabolic. The lamp for your TV should read P22h.

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Tv brightness/vibrant

Most of the projection lamps are recommended to be replaced after 2 years. The older they get the more dim they will become. I would suggest replacing the lamp again. Some of the aftermarket lamps do not work as well as the factory replacement. I always spend the extra money and get one from Samsung.

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Picture is dark

Adjust video settings:
  1. Press Wega Gate
  2. Select Settings
  3. Highlight Video
  4. Press + to select
  5. Adjust/increase the brightness.
  6. Press Wega gate to exit.
If picture is still dark, you need to replace the lamp again. Sony recommends that you replace the lamp:
  1. After approximately 8,000 hours of use.
  2. When the screen becomes dark or the color becomes unusual.
  3. When the lamp indicator on the front of the TV flashes.

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Screen going dark

Definitely. The lamp often looses oomph before it goes. Think about how long you have had your set. The average life seems to be around 2 years. Eventually your set will indicate the lamp needs replacing, if it hasn't already. I see your posting is about 6 months ago. Are you willing to verify for everyone else?

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Screen Brightness

Your ballast may not be up to 100% of its rated capabilities, thats often the cause when the brightness level gets to unwatchable levels. You may need to troubleshoot the ballast voltages a defective ballast can usually cause a lamp to loose about 60 % of its brightness levels. The other possibility could be the DLP mirrors need polishing but that is something better left to a repair shop as the DLP mirrors are sensitive

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