Question about Philips 50P8341 50" Rear Projection Television

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The tv is mostly red

The redness is really bad there is basically no other color except red.

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Replace the CRT coolant, as the green and blue get congealed and that causes the red to become dominate. You can get the Phillips CRT coolant kit at the following link which contains the coolant and the instructions on CD.
http://www.tvrepairworld.com/

Posted on Jul 19, 2009

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Why is the color red is gone


this is because of the color control circuit for the red , its most likely an IC that controls red has failed or even a bad resistor , capacitor , ect .. in that circuit will need replacing

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Mitsubishi Diamond Series T.V.


When a tv (Rear proyection) shows this coloration is the meanning that the red color is not there (the red color is generated by a red CRT). Now it can be really bad not having the tube working but before conclution make sure of this: (and if the red color gets back then the tube is ok)
  • is this condition the same in all inputs? or the picture looks ok with a different video source (VCR, DVD other)
  • are the menu letters same as the picture looks or are they fine?
If we cannot see any red color back with this testing, still chances that a technician find an electronic problem that make the tube to be off. so don't rush conclusions and get to the end to save the tv with out replacing the red tube, but if all was done and nothing then the tv needs the tube replacing.

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The color on my dvd is red. The TV color is fine.


Bad chroma processor. Part of the video CPU. Service time...accordianman

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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.

Nov 18, 2007 | Philips 50P8341 50" Rear Projection...

1 Answer

Red screen


Christ, why did you disturb the bias settings? Which stupid @#$% told you to that? The red color was most likely a blown Red Output Transistor, or something as simple as a bad CRT base. Now, I suggest that you switch off the TV, wait for a couple of hours, open the set, and very slowly and carefully pull the CRT PCB (along with sockets base. Then clean the CRT terminals (use a fine emery sheet.) Also check the base for dry (cold) solders. Replace the CRT board. Picture should be normal. If problem persits, then it is definitely the Red Output Transistor or associated components. Get a professional to have a look.

Aug 23, 2006 | RCA F27628 27" TV

2 Answers

All red picture now.


Sounds like a bad capacitor or drive signal on the red tube. Could be the red drive transistor, or a cold solder connection on the crt board

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