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How to remove horizontal lines for dvd player

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This is a common problem and is either bad connections at the vertical Ic or a defective IC. Look for a small flat Ic attached to a heat sink with 9 pins or so. It should be marked LA7837 or similar. Resolder the pins and try again. If that fails, replace the chip. That should fix it. You may also need to replace some capacitors in the same circuit if the picture lookes stretched or otherwise off. The Ic should be labeled on the board as ICxyy. Capacitors in the same circuit will have the designation Cxyy. Change the Caps that have the same x designation.

Posted on Nov 07, 2008

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My Ultravision TV is now having horizontal lines. Do not know if it has a horizontal hold button hidden somewhere or is the TV going out? Can I fix it myself. Large screen


Can you try and see if it is your source that has the lines or the actuall TV that has the horizontal lines.
What is your source? Direct TV, Cable TV or even off air Digital TV.
If you remove your source do you still get the horizontal lines? If you do then what colors are they? Seems if when you remove your source input and you still have these H-lines then you have issues with your individual LCD palets. Especially if they are just Green, Red or Blue?

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1 Answer

Horizontal lines across middle of screen sometimes


Vertical problem coming from bad solder, or vertical circuit problems!!!
Check for bad solder and capacitors problems in vertical circuit.

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Horizontal color line across the screen


Most likely a bad Vertical IC or bad connections on the vertical IC. don't continue trying it on. If you have a bad connection it could do more damage. You also could damage the CRT ( picture tube ). If you remove the cover and look at the bottom side of the PC bord with a good magnifiing glass you may see what looks like rings around the leads comming from the Vertical IC. The Vertical IC is mounted on a heat sink usually towards the front of the set looking from back. If you do see the rings around the leads try reheating with a solder iron. If this dosen't fix you most likely need a new IC.

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I have a pioneer dv656a dvd player and on some dvd's i play on my samsung ps42q96hd plasma tv, it displays horizontal lines that move from bottom to the top of the screen constantly. Is this normal for a...


Try disconnecting everything from the tv *except* the DVD player (that includes cable tv). You are using a component or digital connection, right? Some of these HDTVs are **** at displaying a composite feed. If this clears up the problem then the lines were probably caused by a fault in your cable tv, and you need to take it up with them.

ANYWAY, if the rolling lines remain even with everything else unplugged, it could also be electrical interference from something near by, like power cords or something.

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Needs Hyper board repair = replace bad caps
PCB not available to buy outright........................T.

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Change both STK convergence IC's for reliability. They amplify/control both horiz and vertical. re-align after replacement.Locate them on the largest heat sink in your set!

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Black horizontal lines on mitsubishi VS-5043


Is the noise in all inputs (line, tumer) ? If it is in the tuner alone, check the coax lug to see if you knocked it loose. This could be the problem. Check you picture with a DVD player on the Video input. Let me know what you find.

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Sound like you have to turn down the G2 (screen)controls. They are turned up too high.

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