Question about Philips 50P8341 50" Rear Projection Television

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Philips 50p8341 have no picture but do have on-screen menus

I got a free 50p8341 projection tv. when I got it home there were red and green pictures and no blue color. As per some advice I replaced the 2 convergence ic's and replace the fluid in the blue tube. After that i had a fair picture **** the color wasn't quite right( previous owner was playing with the screen and focus dials). Yesterday I turn the tv off and now when I turn it on I get the black sceen with the green bow line across the top for a minute then just a black screen. However, if I bring any of the on screen menus up they shjow just fine on the screen. Some times I can get sound but it seams to fade in and out. I would like any help I can recieve on this

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  • Anonymous Feb 13, 2009

    my television cuts on but I have no picture, my screen is black, no menu shows, and no sound

  • bill8667 Mar 14, 2009

    philips 60p8341 same problem! get this had the set 4 years then picture got distored change crt coolant picture was perfect adjusted everthing nice! NO COOLANT leaks took each gun out to change. Ok here's the funny thing watch a dvd 40 mins. then shut tv off 40 mins no picture came back on not even menu or sound. check today again no coolant leaks all wire secure check fuse's bulbs are working meaning looking in with miror they are waiting for signal input. have any ideas thanks Bill from NJ

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  • Philips Master
  • 8,617 Answers

Try resoldering the vertical output IC

Posted on Jan 31, 2009

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Fixing the picture in my Philips rear projection tv


As far as mostly red--turn color to zero and examine screen--if not gray or black and white it may need the screen controls adjusted.

Dark---with back cover off clean the three lens this model has--they are the light source for your picture and if dusty picture will be darker and somewhat dull looking.

Answer is based on brand/model number listed here.

May 16, 2012 | Philips 50P8341 50" Rear Projection...

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Philips 50p8341 tv has bowed picture in the lower left corner and the top center. I cleaned the projectors because the picture was real cloudy and it looked a lot better, came home from work and discovered...


Projection sets have two very common problems.

The first common problem is convergence

These sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the picture to look normal. This is called convergence.

When its out of alignment the video will look 3-D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired. Convergence problems are very common on all Projection TV sets including Sony, Samsung,JVC,Philip Magnavox,Panasonic,Akai,Pioneer, Hitachi,Mitsubishi,Zenith and others.
You can get more information and a DIY convergenece repair kit with instructions from the link below.

Here are some of the most common problems with these sets...

*Screen Looks 3-D
*Colors wont align
*Screen may look distorted or warped or bowed
*No Audio/Video - TV Shuts down - May also make a constant chirping sound

Problem #2 - Another common problem is dull or washed out video.

Your set may have one or more of the following symptoms....

*Dull looking picture
*White looking picture
*Halos around objects
*Red/Orange looking picture

bb0cf99.pngYou can see some more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

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These are both CRT type TV's(3 picture tubes drive the image) with different screen sizes and the CRT's are not interchangeable

Oct 24, 2009 | Philips 50P8341 50" Rear Projection...

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Picture is pale, yet reds are bright. checked color, brightness, and conversion settings. TV seems unresponsive to the color, tint, and brightness adjustments.


open the back and look into the projectors red blue and green should be clear picture if its blurry need to change the coolant if its not on need to replace the projectors

Aug 22, 2009 | Philips 50P8341 50" Rear Projection...

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The color is red and green, and theres two pictures on the screen, one red and the other green. how do you fix that?


you need to replace both convergence ICs they are STK392-110 you can get replacement ICs at the following link with free installation instructions.
http://servicemanuals.vstore.ca/

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To get a new remote call a local TV service company or you can order directly from the manufacture. The cloudiness of your colors are caused by possibility of two things or both: 1) The mirror and lenses inside your TV need cleaning (use window cleaner & soft cloth) spray liquid onto cloth, 2) The fluid in picture tubes need to replaced. To replace fluid (ethylene glycol) take tubes out of unit, drain fluid, clean fluid chamber, add new fluid. How you can tell if fluid is cloudy? Take off screen assembly look into each light (red, green, blue) the picture should be clear. The red tube, light, is normally okay, so use as referance.

Feb 16, 2008 | Philips 50P8341 50" Rear Projection...

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Your Red CRT may be on its way out. Try turning down the G2 screen control on the red CRT just a little. That should help for now. A new red tube wil be a reality in the future.

Jan 21, 2008 | Philips 50P8341 50" Rear Projection...

1 Answer

Philips 50P8341 50 in. Rear Projection Television most of the color is red


Usually if you remove the speaker grill in front there is a convergence panel that can be carefully removed. If you look inside you should see a small rectangular block with six controls. They are labelled focus and screen, and red, blue and green. Adjust only the screen controls very carefully and slowly. I would recommend reducing the red slightly brfore raising the green and then blue until the picture looks acceptable. Be sure to center the on screen controls before starting.

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