Hi i have a philips 36pw8719 and recently the picture has become really fuzzy, blurry etc.( unwatchable )now and again it corrects itself but for only a small length of time. i,ve removed all scarts etc and it stays the same. it is gradually getting worse and happens as soon as i turn the tv on. any ideas? thanks
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I too would like to know the solution to this question...we are having the identical problem and Sony doesn't seem to know how to fix it. Although, the picture from the DVD player is perfect, the pictures for cable & video games are terrible. Very frustrating!
The LXI or Sears brand used philips TV's. These sets are known for bad coolant fluid. In between the picture tube and their lenses is a layer of clear coolant. Over time the coolant breaks down and causes the picture to become blurry. This can be a complicated repair involving removal of the picture tubes and lenses. Have a repair shop check it for you. Thanks for using fixya.
Fuzzy is a funny word. I never use it to describe a picture problem. That because fuzzy can go too many different ways. There is snowy fuzzy, blurry fuzzy, grainy fuzzy, and demodulated fuzzy. If the set goes out of focus intermittently that has something to do with the focus ciruitry. If it goes grainy that is a front end problem, usually tuner related. The other types of fuzzy are generally associated with problems in video processing some where. So, which is it?
Oh, and BTW that unit has three small picture tubes in it, one red, one blue, and one green. It doesn't have a 'bulb'.
Inside the set you should see a large part with a red wire coming out the top. That is the flyback transformer. There will be 1 or 2 controls on the back of it. One should be labeled screen and one focus. Carefully adjust the focus one until the picture is again in focus. Please note that in that area are high voltages (33,000V) that can be dangerous. Be careful where you touch. IT is best to have a mirror so you can see the picture while adjusting the focus control.
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.
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.
as your problem is
the picture has become blurry/hazy
1 it sounds me that there is a little sparking near high voltage section that is near flyback transformer.please get it check.
2 if it is ok then focusing anode wire going to crt base from flyback transformer is not making proper contact due to some foreign material deposited on it.
please call tech person if you ae not aware of it as tv is a very high voltage device.
You probably have a focus problem. Possibly the focus control has opened.
If so, then you would have to have the Flyback (High Voltage transformer) replaced. The control is integrated into the flyback.
Depending on the labor chages and parts prices would determine if you want make that kind of investment.
Other problem can also cause this effect such as a bad picture tube, open resistor,bad picture tube socket, etc.