Question about Symphonic ST420FF 20" TV

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SYMPHONIC LCD COLOR TV WF15L5

THE IMAGE IS NEGATIVE ON SCREEN. IS IT THE TUBE? WORTH HAVING IT FIXED?

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welcomejee
  • 10594 Answers

SOURCE: My Sony FD Trinitron Wega has no red color

Its technical document of any product for techs only and usually does not come with product. You can download copy from HERE for small fee. It calls Service Manual.
Below is an image of that service manual.

0efe381.jpg

Posted on Jul 24, 2009

gopakumarg43
  • 68180 Answers

SOURCE: symphonic wf15l5 what is the price on this

$13+14.95. Click here for more details.

Posted on Sep 11, 2012

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Symphonic wf15l5


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Sony trinitron srs wega 36 inch colour is going blue gone already is it worth fixing?


hello eightythreem!
some pro's and contra's...
Trinitron tubes are the best ever built picture tubes - long life, best contrast and sharpness, brilliant colors, etc thou u never get with any modern lcd screen. otherwise the big form factor is uncompareable with todays thin screens. also the brand itself and in your case the wega model is a name on its own high standard. anyway i would recommend you to let your tv check by a local service cause it sounds like a electronical problem - let them tell you how much aproximately fixing will count - before they repair it - so you still can decide is it worth or not. hope to helped a bit.
regards

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no ....the tube will end up after 20 yrs in 10 yr old sony...
it is worth if u fix it. randomly going black means...horizontal driver trans former is the problem..or any loose contact with the 110 volt supply to that transformer,,or any loose contact with line o/p transformer.. (horizontal driver transformer may be gone
then tv behaves like this) if any other parts gone tv wont come back.... there may be a loose contact call a service pro..

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My Sony FD Trinitron Wega has no red color on the screen. All the usual adjustments don't help. No other TV in the house is doing this. Is the picture tube dying? Is it worth fixing?


Its technical document of any product for techs only and usually does not come with product. You can download copy from HERE for small fee. It calls Service Manual.
Below is an image of that service manual.

0efe381.jpg

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1 Answer

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main board is cold solder. resolder main board.

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1 Answer

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check the line transistor near the transformer ahaving a long cable going to a tube

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