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White line vertical on every hanel - Televison & Video

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Check and replace damaged component/s at its horizontal scan output section circuit. Check the LOT (Line Output Transformer) too for damage. Replace the horizontal scan output transistor. Check the input voltage to LOT. If the voltage is absent check the feeder resistor; if any. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/

Posted on Apr 12, 2015

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Posted on Jan 02, 2017

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1 Answer

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Hello,

The problem is "Vertical Over-drive" and the white lines are vertical retrace lines. What has happened is a component failure between the vertical oscillator and the vertical driver circuit. The component is usually a capacitor that is leaking and allowing voltages to appear where they shouldn't be.problem component is leaking and allowing DC voltages to appear where they don't belong. It's causing the vertical driver transistor to run "flat out" and will ultimately burn out the transistor from internally generated heat.
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1 Answer

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I just read a post that said tap on the top and the line will go away. I tried it on mine and it worked! I had to tap it fairly hard. I just kept tapping harder and harder on the plastic in front of the buttons and voila! The vertical white line disappeared!

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2 Answers

White vertical line on left side of screen


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1 Answer

White vertical line on left side of screen


Hi there

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