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My goldstar 21 inch tv display white raster with tracing line on half of the screen

Tracing line

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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techman
  • 3130 Answers

SOURCE: SONY KV-27FV310: UPPER HALF OF SCREEN IS BLACK

You have a vert sweep problem and unless you know how to trouble shoot this cuircit bring it to a pro. I found out mostly in these sets that the vert output IC is bad.. Also sometimes the b+ filter cap off the fly is leaky and made the IC to fail. Another thing is Im surprised to hear you got a pic with the vert failure and a bright line in the pic!! This could be a big problem when the sets fixed so dont run it too long like this. It could burn a line all the way across the screen and you will see a dark faint line in your pic because of this. BE CAREFULL!!

Posted on Mar 25, 2006

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bmwrider
  • 215 Answers

SOURCE: No raster, No sound, No channel number

Just one thing. You DO have a raster. If you have only a blue screen obviously the blue gun is working, hence a raster. What I don't understand is how can you tell the focus is bad if you don't have a picture? Many TVs switch to a plain blue screen when switched to Video in and there's a lack of input. Have you tried changing to your normal broadcast channels? One thing's for sure it's not something that can be fixed on-line so HELLO Mr repairman :-)

Posted on May 27, 2006

waynejamescm
  • 67 Answers

SOURCE: CRT TV with a white line half way up the screen

Hello,

The white line is result of a Vertical failure. Believe it or not, the whole picture is contained in that one white line, but it is not spread out from top to bottom on the screen.

Usually, a vertical failure is IC or capacitor related. Should be an easy, fairly inexpensive fix for a competent repair shop.

Hope this helps you...

Posted on Jan 05, 2009

  • 1 Answer

SOURCE: Sony Trinitron 21 inch KV-G21M1

what is the securet code of this tv. No picutre, sound but video mode is good. how to solve this probles.

Posted on Feb 18, 2010

bhatgiri73
  • 106 Answers

SOURCE: my panasonic tv started displaying white lines

some capacitors are faulty in the vertical section of ur tv,, they must be replaced ,calla service pro to replce it 100mfd 50v capacitor

Posted on Mar 19, 2010

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My tv sony kv-xa21m61 display too bright and many horizontal lines. no picture


Vertical retrace lines is the problem. Thin white lines runs across the entire screen, at about an inch apart to each other. Check its video output supply voltage. Reduce the screen voltage to a little bit down and check. If you still wish to know more about this fault, check this site. Pull up older posts there.

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1 Answer

White Horizontal Lines near the top of my Screen


this symptom is what we called vertical fold-over. vertical fold-over is characterised by a white horizontal bar on the bottom or top of the raster due to the concentration or compression of the trace lines. it an image is present, the bottom or top portion is fold over. this is caused by a vertical deflection current with poor linearity, which compresses the trace lines at the bottom or top of the screen. this symptom is is caused by a defective sawtooth wave genetator circuit, or improper biasing or defective feedback circuit of the vertical drive or vertical output transistor/ic. the negative feedback circuit in vertical deflection circuit compensates for the linearity of the trace portion of the sawtooth wave. a decrease in the capacitance of the sawtooth generator capacitor is usually the trouble. but if you do not understand anything what i have written here, better bring it to a qualified tv technician for your own safety also. good luck!

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Flyback lines? Is the picture all white with no brightness control with faint horizontal faint lines? If this is what you are saying, the screen voltage could be bad, and if thats the case, the picture tube or the flyback itself could be bad. You could also have a bad connection on the crt socket

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1 Answer

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Your problem discription is not very detailed but certainly it sounds like the first place to look would be at the fuses if the set is completely dead. Good luck.

May 26, 2006 | Philips 21PT4475 TV

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