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There is no picture on the screen. just a small line that goes across the screen when turned on. tried turning it off and then on again and it does the same thing.

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Need to take it to a repair shop , thats the VERTICAL OUTPUT IC that went bad , hope it helps , AJ

Posted on Nov 18, 2009

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White lines across tv screen


Without seeing the lines I can't be sure what your set has wrong, but here are a some possibilities:

If the lines are lines are confined to the top inch or two of the screen and the picture looks otherwise normal, the trouble is bad capacitors in the vertical output circuit. Fixable by replacing the bad parts.

If diagonal lines are across the entire face of the picture tube and the picture looks washed out, the trouble is often a bad capacitor on the 200-volt line to the picture tube. This may be on the main circuit board near the horizontal output transformer, or on the small circuit board plugged onto the end of the picture tube. Again, replacing the bad capacitor can fix this.

If your TV is actually an RCA, someone may have bumped a rear-panel adjustment. On the back of the TV near the bottom right are two small knobs. RCA left these adjustments exposed inside of putting them inside the set like other manufacturers. These sometimes get bumped if someone was behind the set cleaning, or if a pet got back there and hit them with a tail. The top knob adjusts focus, and the bottom knob adjusts something called G2 or screen voltage. If this gets turned up too high it can cause the faded picture and diagonal white lines. Turn the adjustment down until a black screen looks black instead of gray.

A bad picture tube or horizontal output transformer can also cause lines through the picture. If this is the case with your set, it's time for a new TV. The transformer is relatively inexpensive but labor costs aren't, and the repair bill may exceed $200. If the tube is bad, there's no point even considering repair. The tube cost alone exceeds the cost of new TV.

Hopefully your lines are easy and cheap to fix. Good luck, and thanks for using Fixya!

Jul 22, 2011 | RCA F35673MB 35" TV

1 Answer

Have horizontal lines across the screen and some


Yeah we have the same exact problem here. Defective TV....ours would correct itself after 30 mins, but now it's blurry all the time. I'm never dropping 2K on a SONY tv again.

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1 Answer

TV TURNS ON,LINES ACROSS SCREEN THEN TURNS OFF BY ITSELF


sounds like a vertical problem, usually you'll see one white line across the screen, but one I worked on would come on and the bottom half of the picture was gone and there were lines across the top of the screen.

If you know how to solder & can find the vertical output chip then you could try resoldering the pins. If this doesn't fix it then it needs new parts.

Mar 08, 2010 | Sony FD Trinitron WEGA KV-36FS120 36" TV

2 Answers

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The red picture tube is bad, you must replace before it cause damage to the boards.

Feb 24, 2009 | Sony KP-57WS500 57" Rear Projection...

1 Answer

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Two things can cause lines across the LCD either horizontal or vertically. The first (and most likely) is a small crack in the display wafer. LCD stands for Liquid Cristal Display. They are very fragile and can be easily damaged if dropped. I broke one in my pants pocket.

The second would be if a pin on the ribbon cable (to the LDC wafer) was not making good contact. If you disassemble the camera it is possible to clean the contacts using contact cleaner (or alcohol). Only attempt this is you are willing to replace the camera if you don’t put it back together properly.

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When I turn on my computer the monitor takes a long time to warm up and colors change and vertical lines flash across the screen from right to left before the screen becomes normal again. Now the power light even goes out upon turning on my computer and I have to unplug the video cord and plug it back in to start the screen back up which even takes longer.

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1 Answer

Picture reduced to a horizontal line across center


sounds like the vertical, more info ctechnicians.com

Dec 21, 2007 | Hitachi 35UX80B 35" TV

1 Answer

Picture flickers off and on


I would try adjusting the screen control on the flyback. The flyback can be easly located, find the red wire attached to the top of the picture tube & follow it down to the flyback. on the flyback you should find two controls, one screen & one focus. you sould be able to read the words above each control, only adjust the screen one. slightly increase the control till the picture stays on, if you turn it too much you will get small white lines going across the screen. Now if what i have told you fixes the set, then it is only a tempoary repair. could last days or mothes, maybe years. if it starts to happen again later the set will have to be replaced. this is a sign of the picture tube starting to get a weak. ALSO DO NOT PLAY WITH THE RED WIRE IT CARRES VERY HIGH VOLTAGES EVEN WHAN UNPLUGGED FOR DAYS.

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1 Answer

Red Line across Screen


sounds like you have a vertical sweep problem. Where the fault lies cpuld be the vertical output IC the verticle b+ feed, could be the capacitors in the vertical circuit?? Your gonna need to troubleshoot thr vrtical circuit if your not a tech thin my advise is to take the set to a pro for sn est. Good Luck

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