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Screen turns off/screen tuns blue - Televison & Video

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Good Day, rbls;
This is a generic description of a common concern of this type. 90% of the time if the pic turns a color then turns off it is the picture tube.
If the picture is lost and the pic/screen turns blue it is normally a lost of signal from the TV's source (cable box, vcr,dvd & etc), check all cables, try different inputs & etc.
Good Luck, big IRISH. For more detail e me at mmrkcar@yaoo.com

Posted on Jul 15, 2008

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Panasonic tv PT50LC13 has no picture red light flashes when i turn it on green light flashes and turns off


This model was recalled by Panasonic-----massive recall. Start by having the lamp examined or tested---that is the place to begin.

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How do i conect my tv aeriel to my projector and get it tuned in on the projector ?


Since most projectors don't have built in tunning ( they only have audio/video input jacks), you'll have to use another source for tunning - one that has a/v output with built in tunning. The best source would be a vcr or dvd recorder with a built in tuner.
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My tv 65rpwv600 just starts showing a blue colors on screen and after that it turns BLUE. i can't watch it but i can hesr it and also before this problems some very light lines (horizontals) were on the...


you either have a screen control drifting or a bad blue crt
you can access the screen controls behind the speaker grill and the black cover behind it the blue will be on one end or the other
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I have a Sony 47 inch rear projection tv that is about nine years old When the set is turned on it has a good color picture but after a few minutes it tuns to a complete green sceen. Can you tell me what...


The green CRT may be intermittently bad or the focus screen block. Certain sony's are common to have bad CRT's. When the screen goes green does the set shut off?

Sep 20, 2009 | Televison & Video

3 Answers

Screen turns blue


You may have a bad blue picture tube but there is a way to deal with this first---This is a 2001 model and does not have a light engine---I did one of these with the same problem a week ago---the set has a black plastic block with six controls---three are Focus(red,green,blue) the other 3 controls are Screen controls(red, green, blue) Someone has to remove the entire piece on the front of the set below the screen(usually a plastic part) most of the time it is secured with 3 screws on either side of the set in the back; once you remove the screws the entire piece should pull out(pull from right to left(it will not fall off or come out easy--it is held in with several large plastic pegs) With it removed there is an inspection plate with 4 screws-----the screen/focus block is behind it.

You need to look very closely at the block to identify the focus versus screen controls----one row left to right will be marked Focus and the other row left to right will be marked screen------YOU need to locate the Blue Screen control(they are black like the block) With the set on(be careful) go to a video input with nothing connected---if you see a blue screen as well as the input number turn the BLUE SCREEN CONTROL SLOWLY TO THE LEFT UNTIL THE BLUE is gone.

If this cures the problem you may only be buying yourself some time----if the blue picture tube is bad sooner or later this trouble may return----I have seen sets where this was adjusted and the set worked for a year or more with no repeat of the trouble----replacing the blue tube would likely cost you 400 - 500 parts and labor.

I do this here for free so if this has helped you take a moment and give me a vote here.

SD TECH

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Just replaced the lamp worked 2x for 30 sec each, now nothing.


you need to make sure all screws are in and tight , and most important the cover on the back of the tv were you access the lamp that has to be on. There is a little blue plastic piece (the safety switch) if that is not engaged the tv will stay on fore a few seconds then turn off check it out.

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1 Answer

Sony goes blue


you need a new Blue CRT you can get them at the following link.
http://servicemanuals.vstore.ca/

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BLUE SCREEN THEN SHUTS OFF


cause: tuner i believe will cause tv to not find channels turn blue and turn itself off

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Sony KP-51WS500


does it have blue video image?

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