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Re: Sharp 27" VHS combo
Sounds like the vert output is defective. In this model i dont remember if its an IC or transistors. Also check the b+ resistor and cap comming off the flyback transformer as it will begin with the same parts seris #s that the vert output does. If your not an electronic troublkeshooter your gonna have to decide if you have gotten your moneys worth out of it and buy a new one or if you wanna keep patching it as It will continue to have falures in the next months to come or years to come as a 9 year old set is an old set in these parts. Now there are areas in the world where a new tv would take a years salary so peeps do have them repaired. Its all up to you. Good Luck
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You have a vertical IC that is in need of resoldering. And you can bet you have a few weak capacitors very close to this IC that need replaced. And while you are at it, check for a high voltage cap that may be weak in the horizontal section. This would be the next step in saving this TV. If you or a hobbiest can pull this board you could probably do the repair. Use extra caution when you do this. Or best yet find a TV Tech!
sounds like an intermittent problem. it could be a cold solder and it needs to be resolder it at the VERTICAL IC or transistor section , if your good with tools , you can do it yourself , otherwise take TV to a nearest repair shop, hope this helps , AJ
This is usually a bad elect capasitor or a bad solder connection on the vertical IC, The capasitors will be close to the vert chip..Sometimes you can clear problem with a light tap on the TV, if so then suspect bad solder.
That sounds like simple ring-cracks in the vertical circuit, most likely the vertical Ic itself... On the printed circuit side of the Tv look at the vertical Ic and examine it carefully under some magnification where each pin of the Ic solders to the board. See if you can find any cracks in those solder connections.
lcd or plasma.
are the lines solid or blurred. do they have sharp edges.
You may have a memory problem with the display which can only be repaired by factory trained technicians, or a brave soul willing to find parts on ebay.