I have a Magnavox 27 inch television set with just a horizontal line in the middle when turned on. The sound and even the channel changer works. I would like to know if this is a costly repair, or is there something that I could do to fix this?
26" Mitsubishi tv - line through middle, channels volume both work. It did have a problem where the top few inches of the picture were flipped. My Mothers 36" Toshiba did this flipping problem 1st but nothing else has happened to hers...yet. BTW her warranty just ran out before this happened to hers.
We are wondering thees problems are similar. I used to design PC Boards and have soldered before, I haven't broken down my set yet but I know to be careful not to come into contact with the tube. Thank you so much.
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If the line is horizontal (it is a vertical problem) If its a Vertical line (it a horizontal problem) So it could be just a bad solder joint or a component has failed in the horizontal or vertical section. Hope this is helpful.
this symptons is caused by a breakdown in the vertical deflection circuit. hence, the trouble may be in the vertical oscillator, amplifier or output circuit. in most modern tv the vertical ic is usually composed of these said circuit inside. the ic have many pins, standing on a heat sink and smaller in size. try to check also the capacitors surrounding it. sometimes leaky capacitor may cause this problem. good luck!
Normally this is not a costly repair. This is because it could be the vertical coupling capacitor. However if it is the yoke transformer it could get costly. There is no way for you to repair this problem if you do not have a background in electronics. So I would suggest taking the TV to a repair shop to get an estimate. If the estimate is within the range you are willing to spend let them fix it.
It sounds like a vertical deflection problem. You mentioned you had a white HORIZONTAL LINE in the middle of the screen. If this line runs from left to right across the screen it's in Verticla deflection. If it runs from top to bottom, it's in Horizontal deflection. I am assuming the problem is a Vertical deflaecion problem. The repairs necessary are most likley to replace the vertical capacitors or the verticla deflection chip.
NC Electronic Mills, Wyo USA
From your description of the problem, there seems to be a Cold solder in the Vertical Oscillator or Deflection Coil circuits. If you know Solid State electronics, and are good with a soldering Iron, sure u can do this yourself. U
gotta trace the Vertical section components and locate the cold solder.
In most cases it will be a loose connector from the Deflection coil to
the main PCB.Also check for the soldering of the Vertical output IC.
A set that has only a 1/2 inch bright line through the middle of the picture, from left to right, has a vertical output IC that is not working correctly. If the 1/2 inch line is in the middle but going up and down, then the horizontal yoke circuit has stopped working. These are problems which should be looked at by a qualified tech, but if the set was purchased 6 months ago then it should still be under the manufacturer's warranty.